<?php declare(strict_types=1);
/*
 * This file is part of PHPUnit.
 *
 * (c) Sebastian Bergmann <sebastian@phpunit.de>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */
namespace PHPUnit\Framework;

use const PHP_EOL;
use function array_keys;
use function array_merge;
use function array_reverse;
use function array_values;
use function assert;
use function chdir;
use function class_exists;
use function clearstatcache;
use function count;
use function defined;
use function error_clear_last;
use function explode;
use function fclose;
use function getcwd;
use function implode;
use function in_array;
use function ini_get;
use function ini_set;
use function is_array;
use function is_callable;
use function is_int;
use function is_object;
use function is_string;
use function is_writable;
use function libxml_clear_errors;
use function method_exists;
use function ob_end_clean;
use function ob_get_clean;
use function ob_get_contents;
use function ob_get_level;
use function ob_start;
use function preg_match;
use function preg_replace;
use function putenv;
use function restore_error_handler;
use function restore_exception_handler;
use function set_error_handler;
use function set_exception_handler;
use function sprintf;
use function str_contains;
use function str_starts_with;
use function stream_get_contents;
use function stream_get_meta_data;
use function tmpfile;
use function trim;
use AssertionError;
use DeepCopy\DeepCopy;
use PHPUnit\Event;
use PHPUnit\Event\NoPreviousThrowableException;
use PHPUnit\Framework\Constraint\Exception as ExceptionConstraint;
use PHPUnit\Framework\Constraint\ExceptionCode;
use PHPUnit\Framework\Constraint\ExceptionMessageIsOrContains;
use PHPUnit\Framework\Constraint\ExceptionMessageMatchesRegularExpression;
use PHPUnit\Framework\MockObject\Exception as MockObjectException;
use PHPUnit\Framework\MockObject\Generator\Generator as MockGenerator;
use PHPUnit\Framework\MockObject\MockBuilder;
use PHPUnit\Framework\MockObject\MockObject;
use PHPUnit\Framework\MockObject\MockObjectInternal;
use PHPUnit\Framework\MockObject\Rule\AnyInvokedCount as AnyInvokedCountMatcher;
use PHPUnit\Framework\MockObject\Rule\InvokedAtLeastCount as InvokedAtLeastCountMatcher;
use PHPUnit\Framework\MockObject\Rule\InvokedAtLeastOnce as InvokedAtLeastOnceMatcher;
use PHPUnit\Framework\MockObject\Rule\InvokedAtMostCount as InvokedAtMostCountMatcher;
use PHPUnit\Framework\MockObject\Rule\InvokedCount;
use PHPUnit\Framework\MockObject\Rule\InvokedCount as InvokedCountMatcher;
use PHPUnit\Framework\MockObject\Stub;
use PHPUnit\Framework\MockObject\Stub\Exception as ExceptionStub;
use PHPUnit\Framework\MockObject\TestStubBuilder;
use PHPUnit\Framework\TestSize\TestSize;
use PHPUnit\Framework\TestStatus\TestStatus;
use PHPUnit\Metadata\Api\Groups;
use PHPUnit\Metadata\Api\HookMethods;
use PHPUnit\Metadata\Api\Requirements;
use PHPUnit\Metadata\Parser\Registry as MetadataRegistry;
use PHPUnit\Metadata\WithEnvironmentVariable;
use PHPUnit\Runner\BackedUpEnvironmentVariable;
use PHPUnit\Runner\DeprecationCollector\Facade as DeprecationCollector;
use PHPUnit\Runner\HookMethodCollection;
use PHPUnit\Runner\ShutdownHandler;
use PHPUnit\TestRunner\TestResult\PassedTests;
use PHPUnit\TextUI\Configuration\Registry as ConfigurationRegistry;
use PHPUnit\Util\Exporter;
use PHPUnit\Util\Test as TestUtil;
use ReflectionClass;
use ReflectionException;
use ReflectionObject;
use SebastianBergmann\CodeCoverage\UnintentionallyCoveredCodeException;
use SebastianBergmann\Comparator\Comparator;
use SebastianBergmann\Comparator\Factory as ComparatorFactory;
use SebastianBergmann\Diff\Differ;
use SebastianBergmann\Diff\Output\UnifiedDiffOutputBuilder;
use SebastianBergmann\GlobalState\ExcludeList as GlobalStateExcludeList;
use SebastianBergmann\GlobalState\Restorer;
use SebastianBergmann\GlobalState\Snapshot;
use SebastianBergmann\Invoker\TimeoutException;
use SebastianBergmann\ObjectEnumerator\Enumerator;
use Throwable;

/**
 * @no-named-arguments Parameter names are not covered by the backward compatibility promise for PHPUnit
 */
abstract class TestCase extends Assert implements Reorderable, SelfDescribing, Test
{
    private ?bool $backupGlobals = null;

    /**
     * @var list<string>
     */
    private array $backupGlobalsExcludeList = [];
    private ?bool $backupStaticProperties   = null;

    /**
     * @var array<string,list<class-string>>
     */
    private array $backupStaticPropertiesExcludeList = [];
    private ?Snapshot $snapshot                      = null;

    /**
     * @var list<callable>
     */
    private ?array $backupGlobalErrorHandlers = null;

    /**
     * @var list<callable>
     */
    private ?array $backupGlobalExceptionHandlers   = null;
    private ?bool $runClassInSeparateProcess        = null;
    private ?bool $runTestInSeparateProcess         = null;
    private bool $preserveGlobalState               = false;
    private bool $inIsolation                       = false;
    private ?string $expectedException              = null;
    private ?string $expectedExceptionMessage       = null;
    private ?string $expectedExceptionMessageRegExp = null;
    private null|int|string $expectedExceptionCode  = null;

    /**
     * @var list<BackedUpEnvironmentVariable>
     */
    private array $backupEnvironmentVariables = [];

    /**
     * @var list<ExecutionOrderDependency>
     */
    private array $providedTests = [];

    /**
     * @var array<mixed>
     */
    private array $data          = [];
    private int|string $dataName = '';

    /**
     * @var non-empty-string
     */
    private string $methodName;

    /**
     * @var list<string>
     */
    private array $groups = [];

    /**
     * @var list<ExecutionOrderDependency>
     */
    private array $dependencies = [];

    /**
     * @var array<non-empty-string, array<mixed>>
     */
    private array $dependencyInput = [];

    /**
     * @var list<array{type: non-empty-string, mockObject: MockObjectInternal}>
     */
    private array $mockObjects = [];
    private TestStatus $status;

    /**
     * @var non-negative-int
     */
    private int $numberOfAssertionsPerformed = 0;
    private mixed $testResult                = null;
    private string $output                   = '';
    private ?string $outputExpectedRegex     = null;
    private ?string $outputExpectedString    = null;
    private bool $outputBufferingActive      = false;
    private int $outputBufferingLevel;
    private bool $outputRetrievedForAssertion = false;
    private bool $doesNotPerformAssertions    = false;
    private bool $expectErrorLog              = false;

    /**
     * @var list<Comparator>
     */
    private array $customComparators                         = [];
    private ?Event\Code\TestMethod $testValueObjectForEvents = null;
    private bool $wasPrepared                                = false;

    /**
     * @var array<class-string, true>
     */
    private array $failureTypes = [];

    /**
     * @var list<non-empty-string>
     */
    private array $expectedUserDeprecationMessage = [];

    /**
     * @var list<non-empty-string>
     */
    private array $expectedUserDeprecationMessageRegularExpression = [];

    /**
     * @var false|resource
     */
    private mixed $errorLogCapture               = false;
    private false|string $previousErrorLogTarget = false;

    /**
     * @param non-empty-string $name
     *
     * @internal This method is not covered by the backward compatibility promise for PHPUnit
     */
    final public function __construct(string $name)
    {
        $this->methodName = $name;
        $this->status     = TestStatus::unknown();

        if (is_callable($this->sortId(), true)) {
            $this->providedTests = [new ExecutionOrderDependency($this->sortId())];
        }
    }

    /**
     * This method is called before the first test of this test class is run.
     *
     * @codeCoverageIgnore
     */
    public static function setUpBeforeClass(): void
    {
    }

    /**
     * This method is called after the last test of this test class is run.
     *
     * @codeCoverageIgnore
     */
    public static function tearDownAfterClass(): void
    {
    }

    /**
     * This method is called before each test.
     *
     * @codeCoverageIgnore
     */
    protected function setUp(): void
    {
    }

    /**
     * Performs assertions shared by all tests of a test case.
     *
     * This method is called between setUp() and test.
     *
     * @codeCoverageIgnore
     */
    protected function assertPreConditions(): void
    {
    }

    /**
     * Performs assertions shared by all tests of a test case.
     *
     * This method is called between test and tearDown().
     *
     * @codeCoverageIgnore
     */
    protected function assertPostConditions(): void
    {
    }

    /**
     * This method is called after each test.
     *
     * @codeCoverageIgnore
     */
    protected function tearDown(): void
    {
    }

    /**
     * Returns a string representation of the test case.
     *
     * @throws Exception
     *
     * @internal This method is not covered by the backward compatibility promise for PHPUnit
     */
    public function toString(): string
    {
        $buffer = sprintf(
            '%s::%s',
            (new ReflectionClass($this))->getName(),
            $this->methodName,
        );

        return $buffer . $this->dataSetAsStringWithData();
    }

    /**
     * @internal This method is not covered by the backward compatibility promise for PHPUnit
     */
    final public function count(): int
    {
        return 1;
    }

    /**
     * @internal This method is not covered by the backward compatibility promise for PHPUnit
     */
    final public function status(): TestStatus
    {
        return $this->status;
    }

    /**
     * @throws \PHPUnit\Runner\Exception
     * @throws \PHPUnit\Util\Exception
     * @throws \SebastianBergmann\CodeCoverage\InvalidArgumentException
     * @throws \SebastianBergmann\Template\InvalidArgumentException
     * @throws Exception
     * @throws NoPreviousThrowableException
     * @throws ProcessIsolationException
     * @throws UnintentionallyCoveredCodeException
     *
     * @internal This method is not covered by the backward compatibility promise for PHPUnit
     */
    final public function run(): void
    {
        if (!$this->handleDependencies()) {
            return;
        }

        if (!$this->shouldRunInSeparateProcess() || $this->requirementsNotSatisfied()) {
            try {
                ShutdownHandler::setMessage(sprintf('Fatal error: Premature end of PHP process when running %s.', $this->toString()));
                (new TestRunner)->run($this);
            } finally {
                ShutdownHandler::resetMessage();
            }

            return;
        }

        IsolatedTestRunnerRegistry::run(
            $this,
            $this->runClassInSeparateProcess && !$this->runTestInSeparateProcess,
            $this->preserveGlobalState,
            $this->requiresXdebug(),
        );
    }

    /**
     * @return list<string>
     *
     * @internal This method is not covered by the backward compatibility promise for PHPUnit
     */
    final public function groups(): array
    {
        return $this->groups;
    }

    /**
     * @param list<string> $groups
     *
     * @internal This method is not covered by the backward compatibility promise for PHPUnit
     */
    final public function setGroups(array $groups): void
    {
        $this->groups = $groups;
    }

    /**
     * @internal This method is not covered by the backward compatibility promise for PHPUnit
     */
    final public function nameWithDataSet(): string
    {
        return $this->methodName . $this->dataSetAsString();
    }

    /**
     * @return non-empty-string
     *
     * @internal This method is not covered by the backward compatibility promise for PHPUnit
     */
    final public function name(): string
    {
        return $this->methodName;
    }

    /**
     * @internal This method is not covered by the backward compatibility promise for PHPUnit
     */
    final public function size(): TestSize
    {
        return (new Groups)->size(
            static::class,
            $this->methodName,
        );
    }

    /**
     * @internal This method is not covered by the backward compatibility promise for PHPUnit
     *
     * @phpstan-assert-if-true non-empty-string $this->output()
     */
    final public function hasUnexpectedOutput(): bool
    {
        if ($this->output === '') {
            return false;
        }

        if ($this->expectsOutput()) {
            return false;
        }

        return true;
    }

    /**
     * @internal This method is not covered by the backward compatibility promise for PHPUnit
     */
    final public function output(): string
    {
        if (!$this->outputBufferingActive) {
            return $this->output;
        }

        return (string) ob_get_contents();
    }

    /**
     * @internal This method is not covered by the backward compatibility promise for PHPUnit
     */
    final public function doesNotPerformAssertions(): bool
    {
        return $this->doesNotPerformAssertions;
    }

    /**
     * @internal This method is not covered by the backward compatibility promise for PHPUnit
     */
    final public function expectsOutput(): bool
    {
        return $this->hasExpectationOnOutput() || $this->outputRetrievedForAssertion;
    }

    /**
     * @throws Throwable
     *
     * @internal This method is not covered by the backward compatibility promise for PHPUnit
     */
    final public function runBare(): void
    {
        $emitter = Event\Facade::emitter();

        error_clear_last();
        clearstatcache();

        $emitter->testPreparationStarted(
            $this->valueObjectForEvents(),
        );

        $this->snapshotGlobalState();
        $this->snapshotGlobalErrorExceptionHandlers();
        $this->handleEnvironmentVariables();
        $this->startOutputBuffering();

        $hookMethods                       = (new HookMethods)->hookMethods(static::class);
        $hasMetRequirements                = false;
        $this->numberOfAssertionsPerformed = 0;
        $currentWorkingDirectory           = getcwd();

        try {
            $this->checkRequirements();
            $hasMetRequirements = true;

            if ($this->inIsolation) {
                // @codeCoverageIgnoreStart
                $this->invokeBeforeClassHookMethods($hookMethods, $emitter);
                // @codeCoverageIgnoreEnd
            }

            if (method_exists(static::class, $this->methodName) &&
                MetadataRegistry::parser()->forClassAndMethod(static::class, $this->methodName)->isDoesNotPerformAssertions()->isNotEmpty()) {
                $this->doesNotPerformAssertions = true;
            }

            $this->invokeBeforeTestHookMethods($hookMethods, $emitter);
            $this->invokePreConditionHookMethods($hookMethods, $emitter);

            $emitter->testPrepared(
                $this->valueObjectForEvents(),
            );

            $this->wasPrepared = true;
            $this->testResult  = $this->runTest();

            $this->verifyDeprecationExpectations();
            $this->verifyMockObjects();
            $this->invokePostConditionHookMethods($hookMethods, $emitter);

            $this->status = TestStatus::success();
        } catch (IncompleteTest $e) {
            $this->status = TestStatus::incomplete($e->getMessage());

            $emitter->testMarkedAsIncomplete(
                $this->valueObjectForEvents(),
                Event\Code\ThrowableBuilder::from($e),
            );
        } catch (SkippedTest $e) {
            $this->status = TestStatus::skipped($e->getMessage());

            $emitter->testSkipped(
                $this->valueObjectForEvents(),
                $e->getMessage(),
            );
        } catch (AssertionError|AssertionFailedError $e) {
            $this->handleExceptionFromInvokedCountMockObjectRule($e);

            if (!$this->wasPrepared) {
                $this->wasPrepared = true;

                $emitter->testPreparationFailed(
                    $this->valueObjectForEvents(),
                    Event\Code\ThrowableBuilder::from($e),
                );
            }

            $this->status = TestStatus::failure($e->getMessage());

            $emitter->testFailed(
                $this->valueObjectForEvents(),
                Event\Code\ThrowableBuilder::from($e),
                Event\Code\ComparisonFailureBuilder::from($e),
            );
        } catch (TimeoutException $e) {
        } catch (Throwable $_e) {
            if ($this->isRegisteredFailure($_e)) {
                $this->status = TestStatus::failure($_e->getMessage());

                $emitter->testFailed(
                    $this->valueObjectForEvents(),
                    Event\Code\ThrowableBuilder::from($_e),
                    null,
                );
            } else {
                $e = $this->transformException($_e);

                $this->status = TestStatus::error($e->getMessage());

                if (!$this->wasPrepared) {
                    if ($e instanceof AssertionFailedError) {
                        $emitter->testPreparationFailed(
                            $this->valueObjectForEvents(),
                            Event\Code\ThrowableBuilder::from($e),
                        );
                    } else {
                        $emitter->testPreparationErrored(
                            $this->valueObjectForEvents(),
                            Event\Code\ThrowableBuilder::from($e),
                        );
                    }
                }

                $emitter->testErrored(
                    $this->valueObjectForEvents(),
                    Event\Code\ThrowableBuilder::from($e),
                );
            }
        }

        $outputBufferingStopped = false;

        if (!isset($e) &&
            $this->hasExpectationOnOutput() &&
            $this->stopOutputBuffering()) {
            $outputBufferingStopped = true;

            $this->performAssertionsOnOutput();
        }

        try {
            $this->mockObjects = [];

            /** @phpstan-ignore catch.neverThrown */
        } catch (Throwable $e) {
            Event\Facade::emitter()->testErrored(
                $this->valueObjectForEvents(),
                Event\Code\ThrowableBuilder::from($e),
            );
        }

        // Tear down the fixture. An exception raised in tearDown() will be
        // caught and passed on when no exception was raised before.
        try {
            if ($hasMetRequirements) {
                $this->invokeAfterTestHookMethods($hookMethods, $emitter);

                if ($this->inIsolation) {
                    // @codeCoverageIgnoreStart
                    $this->invokeAfterClassHookMethods($hookMethods, $emitter);
                    // @codeCoverageIgnoreEnd
                }
            }
        } catch (AssertionError|AssertionFailedError $e) {
            $this->status = TestStatus::failure($e->getMessage());

            $emitter->testFailed(
                $this->valueObjectForEvents(),
                Event\Code\ThrowableBuilder::from($e),
                Event\Code\ComparisonFailureBuilder::from($e),
            );
        } catch (Throwable $exceptionRaisedDuringTearDown) {
            if (!isset($e) || $e instanceof SkippedWithMessageException) {
                $this->status = TestStatus::error($exceptionRaisedDuringTearDown->getMessage());
                $e            = $exceptionRaisedDuringTearDown;

                $emitter->testErrored(
                    $this->valueObjectForEvents(),
                    Event\Code\ThrowableBuilder::from($exceptionRaisedDuringTearDown),
                );
            }
        }

        if (!isset($e) && !isset($_e)) {
            $emitter->testPassed(
                $this->valueObjectForEvents(),
            );

            if (!$this->usesDataProvider()) {
                PassedTests::instance()->testMethodPassed(
                    $this->valueObjectForEvents(),
                    $this->testResult,
                );
            }
        }

        if (!$outputBufferingStopped) {
            $this->stopOutputBuffering();
        }

        clearstatcache();

        if ($currentWorkingDirectory !== false && $currentWorkingDirectory !== getcwd()) {
            chdir($currentWorkingDirectory);
        }

        $this->restoreEnvironmentVariables();
        $this->restoreGlobalErrorExceptionHandlers();
        $this->restoreGlobalState();
        $this->unregisterCustomComparators();
        libxml_clear_errors();

        $this->testValueObjectForEvents = null;

        if (isset($e)) {
            $this->onNotSuccessfulTest($e);
        }
    }

    /**
     * @param list<ExecutionOrderDependency> $dependencies
     *
     * @internal This method is not covered by the backward compatibility promise for PHPUnit
     */
    final public function setDependencies(array $dependencies): void
    {
        $this->dependencies = $dependencies;
    }

    /**
     * @param array<non-empty-string, array<mixed>> $dependencyInput
     *
     * @internal This method is not covered by the backward compatibility promise for PHPUnit
     *
     * @codeCoverageIgnore
     */
    final public function setDependencyInput(array $dependencyInput): void
    {
        $this->dependencyInput = $dependencyInput;
    }

    /**
     * @return array<non-empty-string, array<mixed>>
     *
     * @internal This method is not covered by the backward compatibility promise for PHPUnit
     */
    final public function dependencyInput(): array
    {
        return $this->dependencyInput;
    }

    /**
     * @internal This method is not covered by the backward compatibility promise for PHPUnit
     */
    final public function hasDependencyInput(): bool
    {
        return $this->dependencyInput !== [];
    }

    /**
     * @internal This method is not covered by the backward compatibility promise for PHPUnit
     */
    final public function setBackupGlobals(bool $backupGlobals): void
    {
        $this->backupGlobals = $backupGlobals;
    }

    /**
     * @param list<string> $backupGlobalsExcludeList
     *
     * @internal This method is not covered by the backward compatibility promise for PHPUnit
     */
    final public function setBackupGlobalsExcludeList(array $backupGlobalsExcludeList): void
    {
        $this->backupGlobalsExcludeList = $backupGlobalsExcludeList;
    }

    /**
     * @internal This method is not covered by the backward compatibility promise for PHPUnit
     */
    final public function setBackupStaticProperties(bool $backupStaticProperties): void
    {
        $this->backupStaticProperties = $backupStaticProperties;
    }

    /**
     * @param array<string,list<class-string>> $backupStaticPropertiesExcludeList
     *
     * @internal This method is not covered by the backward compatibility promise for PHPUnit
     */
    final public function setBackupStaticPropertiesExcludeList(array $backupStaticPropertiesExcludeList): void
    {
        $this->backupStaticPropertiesExcludeList = $backupStaticPropertiesExcludeList;
    }

    /**
     * @internal This method is not covered by the backward compatibility promise for PHPUnit
     */
    final public function setRunTestInSeparateProcess(bool $runTestInSeparateProcess): void
    {
        if ($this->runTestInSeparateProcess === null) {
            $this->runTestInSeparateProcess = $runTestInSeparateProcess;
        }
    }

    /**
     * @internal This method is not covered by the backward compatibility promise for PHPUnit
     */
    final public function setRunClassInSeparateProcess(bool $runClassInSeparateProcess): void
    {
        $this->runClassInSeparateProcess = $runClassInSeparateProcess;
    }

    /**
     * @internal This method is not covered by the backward compatibility promise for PHPUnit
     */
    final public function setPreserveGlobalState(bool $preserveGlobalState): void
    {
        $this->preserveGlobalState = $preserveGlobalState;
    }

    /**
     * @internal This method is not covered by the backward compatibility promise for PHPUnit
     *
     * @codeCoverageIgnore
     */
    final public function setInIsolation(bool $inIsolation): void
    {
        $this->inIsolation = $inIsolation;
    }

    /**
     * @internal This method is not covered by the backward compatibility promise for PHPUnit
     *
     * @codeCoverageIgnore
     */
    final public function result(): mixed
    {
        return $this->testResult;
    }

    /**
     * @internal This method is not covered by the backward compatibility promise for PHPUnit
     */
    final public function setResult(mixed $result): void
    {
        $this->testResult = $result;
    }

    /**
     * @template RealInstanceType of object
     *
     * @param class-string<RealInstanceType> $type
     *
     * @internal This method is not covered by the backward compatibility promise for PHPUnit
     */
    final public function registerMockObject(string $type, MockObject $mockObject): void
    {
        assert($mockObject instanceof MockObjectInternal);

        $this->mockObjects[] = [
            'type'       => $type,
            'mockObject' => $mockObject,
        ];
    }

    /**
     * @param non-negative-int $count
     *
     * @internal This method is not covered by the backward compatibility promise for PHPUnit
     */
    final public function addToAssertionCount(int $count): void
    {
        assert($count >= 0);

        $this->numberOfAssertionsPerformed += $count;
    }

    /**
     * @return non-negative-int
     *
     * @internal This method is not covered by the backward compatibility promise for PHPUnit
     */
    final public function numberOfAssertionsPerformed(): int
    {
        return $this->numberOfAssertionsPerformed;
    }

    /**
     * @internal This method is not covered by the backward compatibility promise for PHPUnit
     */
    final public function usesDataProvider(): bool
    {
        return $this->data !== [];
    }

    /**
     * @internal This method is not covered by the backward compatibility promise for PHPUnit
     */
    final public function dataName(): int|string
    {
        return $this->dataName;
    }

    /**
     * @internal This method is not covered by the backward compatibility promise for PHPUnit
     */
    final public function dataSetAsString(): string
    {
        if ($this->data !== []) {
            if (is_int($this->dataName)) {
                return sprintf(' with data set #%s', $this->dataName);
            }

            return sprintf(' with data set "%s"', $this->dataName);
        }

        return '';
    }

    /**
     * @internal This method is not covered by the backward compatibility promise for PHPUnit
     */
    final public function dataSetAsStringWithData(): string
    {
        if ($this->data === []) {
            return '';
        }

        return sprintf(
            '%s with data (%s)',
            $this->dataSetAsFilterString(),
            Exporter::shortenedRecursiveExport($this->data),
        );
    }

    /**
     * @return array<mixed>
     *
     * @internal This method is not covered by the backward compatibility promise for PHPUnit
     */
    final public function providedData(): array
    {
        return $this->data;
    }

    /**
     * @internal This method is not covered by the backward compatibility promise for PHPUnit
     */
    final public function sortId(): string
    {
        $id = $this->methodName;

        if (!str_contains($id, '::')) {
            $id = static::class . '::' . $id;
        }

        if ($this->usesDataProvider()) {
            $id .= $this->dataSetAsString();
        }

        return $id;
    }

    /**
     * @return list<ExecutionOrderDependency>
     *
     * @internal This method is not covered by the backward compatibility promise for PHPUnit
     */
    final public function provides(): array
    {
        return $this->providedTests;
    }

    /**
     * @return list<ExecutionOrderDependency>
     *
     * @internal This method is not covered by the backward compatibility promise for PHPUnit
     */
    final public function requires(): array
    {
        return $this->dependencies;
    }

    /**
     * @param array<mixed> $data
     *
     * @internal This method is not covered by the backward compatibility promise for PHPUnit
     */
    final public function setData(int|string $dataName, array $data): void
    {
        $this->dataName = $dataName;
        $this->data     = $data;
    }

    /**
     * @internal This method is not covered by the backward compatibility promise for PHPUnit
     */
    final public function valueObjectForEvents(): Event\Code\TestMethod
    {
        if ($this->testValueObjectForEvents !== null) {
            return $this->testValueObjectForEvents;
        }

        $this->testValueObjectForEvents = Event\Code\TestMethodBuilder::fromTestCase($this);

        return $this->testValueObjectForEvents;
    }

    /**
     * @internal This method is not covered by the backward compatibility promise for PHPUnit
     */
    final public function wasPrepared(): bool
    {
        return $this->wasPrepared;
    }

    /**
     * Returns a matcher that matches when the method is executed
     * zero or more times.
     *
     * @deprecated https://github.com/sebastianbergmann/phpunit/issues/6461
     */
    final protected function any(): AnyInvokedCountMatcher
    {
        return new AnyInvokedCountMatcher;
    }

    /**
     * Returns a matcher that matches when the method is never executed.
     */
    final protected function never(): InvokedCountMatcher
    {
        return new InvokedCountMatcher(0);
    }

    /**
     * Returns a matcher that matches when the method is executed
     * at least N times.
     */
    final protected function atLeast(int $requiredInvocations): InvokedAtLeastCountMatcher
    {
        return new InvokedAtLeastCountMatcher(
            $requiredInvocations,
        );
    }

    /**
     * Returns a matcher that matches when the method is executed at least once.
     */
    final protected function atLeastOnce(): InvokedAtLeastOnceMatcher
    {
        return new InvokedAtLeastOnceMatcher;
    }

    /**
     * Returns a matcher that matches when the method is executed exactly once.
     */
    final protected function once(): InvokedCountMatcher
    {
        return new InvokedCountMatcher(1);
    }

    /**
     * Returns a matcher that matches when the method is executed
     * exactly $count times.
     */
    final protected function exactly(int $count): InvokedCountMatcher
    {
        return new InvokedCountMatcher($count);
    }

    /**
     * Returns a matcher that matches when the method is executed
     * at most N times.
     */
    final protected function atMost(int $allowedInvocations): InvokedAtMostCountMatcher
    {
        return new InvokedAtMostCountMatcher($allowedInvocations);
    }

    final protected function throwException(Throwable $exception): ExceptionStub
    {
        return new ExceptionStub($exception);
    }

    final protected function getActualOutputForAssertion(): string
    {
        $this->outputRetrievedForAssertion = true;

        return $this->output();
    }

    final protected function expectOutputRegex(string $expectedRegex): void
    {
        $this->outputExpectedRegex = $expectedRegex;
    }

    final protected function expectOutputString(string $expectedString): void
    {
        $this->outputExpectedString = $expectedString;
    }

    final protected function expectErrorLog(): void
    {
        $this->expectErrorLog = true;
    }

    /**
     * @param class-string<Throwable> $exception
     */
    final protected function expectException(string $exception): void
    {
        $this->expectedException = $exception;
    }

    final protected function expectExceptionCode(int|string $code): void
    {
        $this->expectedExceptionCode = $code;
    }

    final protected function expectExceptionMessage(string $message): void
    {
        $this->expectedExceptionMessage = $message;
    }

    final protected function expectExceptionMessageMatches(string $regularExpression): void
    {
        $this->expectedExceptionMessageRegExp = $regularExpression;
    }

    /**
     * Sets up an expectation for an exception to be raised by the code under test.
     * Information for expected exception class, expected exception message, and
     * expected exception code are retrieved from a given Exception object.
     */
    final protected function expectExceptionObject(Throwable $exception): void
    {
        $this->expectException($exception::class);
        $this->expectExceptionMessage($exception->getMessage());
        $this->expectExceptionCode($exception->getCode());
    }

    final protected function expectNotToPerformAssertions(): void
    {
        $this->doesNotPerformAssertions = true;
    }

    /**
     * @param non-empty-string $expectedUserDeprecationMessage
     */
    final protected function expectUserDeprecationMessage(string $expectedUserDeprecationMessage): void
    {
        $this->expectedUserDeprecationMessage[] = $expectedUserDeprecationMessage;
    }

    /**
     * @param non-empty-string $expectedUserDeprecationMessageRegularExpression
     */
    final protected function expectUserDeprecationMessageMatches(string $expectedUserDeprecationMessageRegularExpression): void
    {
        $this->expectedUserDeprecationMessageRegularExpression[] = $expectedUserDeprecationMessageRegularExpression;
    }

    /**
     * Returns a builder object to create mock objects using a fluent interface.
     *
     * @template RealInstanceType of object
     *
     * @param class-string<RealInstanceType> $className
     *
     * @return MockBuilder<RealInstanceType>
     */
    final protected function getMockBuilder(string $className): MockBuilder
    {
        return new MockBuilder($this, $className);
    }

    final protected function registerComparator(Comparator $comparator): void
    {
        ComparatorFactory::getInstance()->register($comparator);

        Event\Facade::emitter()->testRegisteredComparator($comparator::class);

        $this->customComparators[] = $comparator;
    }

    /**
     * @param class-string $classOrInterface
     */
    final protected function registerFailureType(string $classOrInterface): void
    {
        $this->failureTypes[$classOrInterface] = true;
    }

    /**
     * Creates a mock object for the specified interface or class.
     *
     * @template RealInstanceType of object
     *
     * @param class-string<RealInstanceType> $type
     *
     * @throws InvalidArgumentException
     * @throws MockObjectException
     * @throws NoPreviousThrowableException
     *
     * @return MockObject&RealInstanceType
     */
    final protected function createMock(string $type): MockObject
    {
        $mock = (new MockGenerator)->testDouble(
            $type,
            true,
            callOriginalConstructor: false,
            callOriginalClone: false,
            returnValueGeneration: self::generateReturnValuesForTestDoubles(),
        );

        assert($mock instanceof $type);
        assert($mock instanceof MockObject);

        $this->registerMockObject($type, $mock);

        Event\Facade::emitter()->testCreatedMockObject($type);

        return $mock;
    }

    /**
     * @param list<class-string> $interfaces
     *
     * @throws MockObjectException
     */
    final protected function createMockForIntersectionOfInterfaces(array $interfaces): MockObject
    {
        $mock = (new MockGenerator)->testDoubleForInterfaceIntersection(
            $interfaces,
            true,
            returnValueGeneration: self::generateReturnValuesForTestDoubles(),
        );

        assert($mock instanceof MockObject);

        $this->registerMockObject(implode('|', $interfaces), $mock);

        Event\Facade::emitter()->testCreatedMockObjectForIntersectionOfInterfaces($interfaces);

        return $mock;
    }

    /**
     * Creates (and configures) a mock object for the specified interface or class.
     *
     * @template RealInstanceType of object
     *
     * @param class-string<RealInstanceType> $type
     * @param array<non-empty-string, mixed> $configuration
     *
     * @throws InvalidArgumentException
     * @throws MockObjectException
     * @throws NoPreviousThrowableException
     *
     * @return MockObject&RealInstanceType
     */
    final protected function createConfiguredMock(string $type, array $configuration): MockObject
    {
        $o = $this->createMock($type);

        foreach ($configuration as $method => $return) {
            $o->method($method)->willReturn($return);
        }

        return $o;
    }

    /**
     * Creates a partial mock object for the specified interface or class.
     *
     * @param class-string<RealInstanceType> $type
     * @param list<non-empty-string>         $methods
     *
     * @template RealInstanceType of object
     *
     * @throws InvalidArgumentException
     * @throws MockObjectException
     *
     * @return MockObject&RealInstanceType
     */
    final protected function createPartialMock(string $type, array $methods): MockObject
    {
        $mockBuilder = $this->getMockBuilder($type)
            ->disableOriginalConstructor()
            ->disableOriginalClone()
            ->onlyMethods($methods);

        if (!self::generateReturnValuesForTestDoubles()) {
            $mockBuilder->disableAutoReturnValueGeneration();
        }

        $partialMock = $mockBuilder->getMock();

        Event\Facade::emitter()->testCreatedPartialMockObject(
            $type,
            ...$methods,
        );

        return $partialMock;
    }

    /**
     * @param non-empty-string $additionalInformation
     */
    final protected function provideAdditionalInformation(string $additionalInformation): void
    {
        Event\Facade::emitter()->testProvidedAdditionalInformation(
            $this->valueObjectForEvents(),
            $additionalInformation,
        );
    }

    protected function transformException(Throwable $t): Throwable
    {
        return $t;
    }

    /**
     * This method is called when a test method did not execute successfully.
     *
     * @throws Throwable
     */
    protected function onNotSuccessfulTest(Throwable $t): never
    {
        throw $t;
    }

    /**
     * Returns the data set as a string compatible with the --filter CLI option.
     *
     * @internal This method is not covered by the backward compatibility promise for PHPUnit
     */
    private function dataSetAsFilterString(): string
    {
        if ($this->data !== []) {
            if (is_int($this->dataName)) {
                return sprintf('#%d', $this->dataName);
            }

            return sprintf('@%s', $this->dataName);
        }

        return '';
    }

    /**
     * @throws AssertionFailedError
     * @throws Exception
     * @throws ExpectationFailedException
     * @throws Throwable
     */
    private function runTest(): mixed
    {
        $testArguments = array_merge($this->data, array_values($this->dependencyInput));

        $this->startErrorLogCapture();

        try {
            /** @phpstan-ignore method.dynamicName */
            $testResult = $this->{$this->methodName}(...$testArguments);

            $this->verifyErrorLogExpectation();
        } catch (Throwable $exception) {
            $this->handleErrorLogError();

            if (!$this->shouldExceptionExpectationsBeVerified($exception)) {
                throw $exception;
            }

            $this->verifyExceptionExpectations($exception);

            return null;
        } finally {
            $this->stopErrorLogCapture();
        }

        $this->expectedExceptionWasNotRaised();

        return $testResult;
    }

    private function stripDateFromErrorLog(string $log): string
    {
        // https://github.com/php/php-src/blob/c696087e323263e941774ebbf902ac249774ec9f/main/main.c#L905
        return preg_replace('/\[\d+-\w+-\d+ \d+:\d+:\d+ [^\r\n[\]]+?\] /', '', $log);
    }

    /**
     * @throws ExpectationFailedException
     */
    private function verifyDeprecationExpectations(): void
    {
        foreach ($this->expectedUserDeprecationMessage as $deprecationExpectation) {
            $this->numberOfAssertionsPerformed++;

            if (!in_array($deprecationExpectation, DeprecationCollector::deprecations(), true)) {
                throw new ExpectationFailedException(
                    sprintf(
                        'Expected deprecation with message "%s" was not triggered',
                        $deprecationExpectation,
                    ),
                );
            }
        }

        foreach ($this->expectedUserDeprecationMessageRegularExpression as $deprecationExpectation) {
            $this->numberOfAssertionsPerformed++;

            $expectedDeprecationTriggered = false;

            foreach (DeprecationCollector::deprecations() as $deprecation) {
                if (@preg_match($deprecationExpectation, $deprecation) > 0) {
                    $expectedDeprecationTriggered = true;

                    break;
                }
            }

            if (!$expectedDeprecationTriggered) {
                throw new ExpectationFailedException(
                    sprintf(
                        'Expected deprecation with message matching regular expression "%s" was not triggered',
                        $deprecationExpectation,
                    ),
                );
            }
        }
    }

    /**
     * @throws Throwable
     */
    private function verifyMockObjects(): void
    {
        $allowsMockObjectsWithoutExpectations = $this->allowsMockObjectsWithoutExpectations();
        $isPhpunitTestSuite                   = str_starts_with($this::class, 'PHPUnit\\');

        foreach ($this->mockObjects as $mockObject) {
            if (!$mockObject['mockObject']->__phpunit_hasInvocationCountRule()) {
                if (!$mockObject['mockObject']->__phpunit_hasParametersRule() &&
                    !$allowsMockObjectsWithoutExpectations &&
                    !$isPhpunitTestSuite) {
                    Event\Facade::emitter()->testTriggeredPhpunitNotice(
                        $this->testValueObjectForEvents,
                        sprintf(
                            'No expectations were configured for the mock object for %s. ' .
                            'Consider refactoring your test code to use a test stub instead. ' .
                            'The #[AllowMockObjectsWithoutExpectations] attribute can be used to opt out of this check.',
                            $mockObject['type'],
                        ),
                    );
                }

                continue;
            }

            $this->numberOfAssertionsPerformed++;

            $mockObject['mockObject']->__phpunit_verify(
                $this->shouldInvocationMockerBeReset($mockObject['mockObject']),
            );
        }
    }

    /**
     * @throws SkippedTest
     */
    private function checkRequirements(): void
    {
        if ($this->methodName === '' || !method_exists($this, $this->methodName)) {
            return;
        }

        $missingRequirements = (new Requirements)->requirementsNotSatisfiedFor(
            static::class,
            $this->methodName,
        );

        if ($missingRequirements !== []) {
            $this->markTestSkipped(implode(PHP_EOL, $missingRequirements));
        }
    }

    private function handleDependencies(): bool
    {
        if ([] === $this->dependencies || $this->inIsolation) {
            return true;
        }

        $passedTests = PassedTests::instance();

        foreach ($this->dependencies as $dependency) {
            if (!$dependency->isValid()) {
                $this->markErrorForInvalidDependency();

                return false;
            }

            if ($dependency->targetIsClass()) {
                $dependencyClassName = $dependency->getTargetClassName();

                if (!class_exists($dependencyClassName)) {
                    $this->markErrorForInvalidDependency($dependency);

                    return false;
                }

                if (!$passedTests->hasTestClassPassed($dependencyClassName)) {
                    $this->markSkippedForMissingDependency($dependency);

                    return false;
                }

                continue;
            }

            $dependencyTarget = $dependency->getTarget();

            if (!$passedTests->hasTestMethodPassed($dependencyTarget)) {
                if (!$this->isCallableTestMethod($dependencyTarget)) {
                    $this->markErrorForInvalidDependency($dependency);
                } else {
                    $this->markSkippedForMissingDependency($dependency);
                }

                return false;
            }

            if ($passedTests->isGreaterThan($dependencyTarget, $this->size())) {
                Event\Facade::emitter()->testConsideredRisky(
                    $this->valueObjectForEvents(),
                    'This test depends on a test that is larger than itself',
                );

                return true;
            }

            if (!$passedTests->hasReturnValue($dependencyTarget)) {
                return true;
            }

            $returnValue = $passedTests->returnValue($dependencyTarget);

            if ($dependency->deepClone()) {
                $deepCopy = new DeepCopy;
                $deepCopy->skipUncloneable(false);

                $this->dependencyInput[$dependencyTarget] = $deepCopy->copy($returnValue);
            } elseif ($dependency->shallowClone()) {
                $this->dependencyInput[$dependencyTarget] = clone $returnValue;
            } else {
                $this->dependencyInput[$dependencyTarget] = $returnValue;
            }
        }

        $this->testValueObjectForEvents = null;

        return true;
    }

    /**
     * @throws Exception
     * @throws NoPreviousThrowableException
     */
    private function markErrorForInvalidDependency(?ExecutionOrderDependency $dependency = null): void
    {
        $message = 'This test has an invalid dependency';

        if ($dependency !== null) {
            $message = sprintf(
                'This test depends on "%s" which does not exist',
                $dependency->targetIsClass() ? $dependency->getTargetClassName() : $dependency->getTarget(),
            );
        }

        $exception = new InvalidDependencyException($message);

        Event\Facade::emitter()->testErrored(
            $this->valueObjectForEvents(),
            Event\Code\ThrowableBuilder::from($exception),
        );

        $this->status = TestStatus::error($message);
    }

    private function markSkippedForMissingDependency(ExecutionOrderDependency $dependency): void
    {
        $message = sprintf(
            'This test depends on "%s" to pass',
            $dependency->getTarget(),
        );

        Event\Facade::emitter()->testSkipped(
            $this->valueObjectForEvents(),
            $message,
        );

        $this->status = TestStatus::skipped($message);
    }

    private function startOutputBuffering(): void
    {
        ob_start();

        $this->outputBufferingActive = true;
        $this->outputBufferingLevel  = ob_get_level();
    }

    private function stopOutputBuffering(): bool
    {
        $bufferingLevel = ob_get_level();

        if ($bufferingLevel !== $this->outputBufferingLevel) {
            if ($bufferingLevel > $this->outputBufferingLevel) {
                $message = 'Test code or tested code did not close its own output buffers';
            } else {
                $message = 'Test code or tested code closed output buffers other than its own';
            }

            while (ob_get_level() >= $this->outputBufferingLevel) {
                ob_end_clean();
            }

            Event\Facade::emitter()->testConsideredRisky(
                $this->valueObjectForEvents(),
                $message,
            );

            return false;
        }

        $this->output = ob_get_clean();

        $this->outputBufferingActive = false;
        $this->outputBufferingLevel  = ob_get_level();

        return true;
    }

    private function snapshotGlobalErrorExceptionHandlers(): void
    {
        $this->backupGlobalErrorHandlers     = $this->activeErrorHandlers();
        $this->backupGlobalExceptionHandlers = $this->activeExceptionHandlers();
    }

    private function restoreGlobalErrorExceptionHandlers(): void
    {
        $activeErrorHandlers     = $this->activeErrorHandlers();
        $activeExceptionHandlers = $this->activeExceptionHandlers();

        $message = null;

        if ($activeErrorHandlers !== $this->backupGlobalErrorHandlers) {
            if (count($activeErrorHandlers) > count($this->backupGlobalErrorHandlers)) {
                if (!$this->inIsolation) {
                    $message = 'Test code or tested code did not remove its own error handlers';
                }
            } else {
                $message = 'Test code or tested code removed error handlers other than its own';
            }

            foreach ($activeErrorHandlers as $handler) {
                restore_error_handler();
            }

            foreach ($this->backupGlobalErrorHandlers as $handler) {
                set_error_handler($handler);
            }
        }

        if ($message !== null) {
            Event\Facade::emitter()->testConsideredRisky(
                $this->valueObjectForEvents(),
                $message,
            );
        }

        $message = null;

        if ($activeExceptionHandlers !== $this->backupGlobalExceptionHandlers) {
            if (count($activeExceptionHandlers) > count($this->backupGlobalExceptionHandlers)) {
                if (!$this->inIsolation) {
                    $message = 'Test code or tested code did not remove its own exception handlers';
                }
            } else {
                $message = 'Test code or tested code removed exception handlers other than its own';
            }

            foreach ($activeExceptionHandlers as $handler) {
                restore_exception_handler();
            }

            foreach ($this->backupGlobalExceptionHandlers as $handler) {
                set_exception_handler($handler);
            }
        }

        $this->backupGlobalErrorHandlers     = null;
        $this->backupGlobalExceptionHandlers = null;

        if ($message !== null) {
            Event\Facade::emitter()->testConsideredRisky(
                $this->valueObjectForEvents(),
                $message,
            );
        }
    }

    /**
     * @return list<callable>
     */
    private function activeErrorHandlers(): array
    {
        $activeErrorHandlers = [];

        while (true) {
            $previousHandler = set_error_handler(static fn () => false);

            restore_error_handler();

            if ($previousHandler === null) {
                break;
            }

            $activeErrorHandlers[] = $previousHandler;

            restore_error_handler();
        }

        $activeErrorHandlers      = array_reverse($activeErrorHandlers);
        $invalidErrorHandlerStack = false;

        foreach ($activeErrorHandlers as $handler) {
            if (!is_callable($handler)) {
                $invalidErrorHandlerStack = true;

                continue;
            }

            set_error_handler($handler);
        }

        if ($invalidErrorHandlerStack) {
            $message = 'At least one error handler is not callable outside the scope it was registered in';

            Event\Facade::emitter()->testConsideredRisky(
                $this->valueObjectForEvents(),
                $message,
            );
        }

        return $activeErrorHandlers;
    }

    /**
     * @return list<callable>
     */
    private function activeExceptionHandlers(): array
    {
        $res = [];

        while (true) {
            $previousHandler = set_exception_handler(static fn () => null);
            restore_exception_handler();

            if ($previousHandler === null) {
                break;
            }
            $res[] = $previousHandler;
            restore_exception_handler();
        }
        $res = array_reverse($res);

        foreach ($res as $handler) {
            set_exception_handler($handler);
        }

        return $res;
    }

    private function snapshotGlobalState(): void
    {
        if ($this->runTestInSeparateProcess || $this->inIsolation ||
            (!$this->backupGlobals && !$this->backupStaticProperties)) {
            return;
        }

        $snapshot = $this->createGlobalStateSnapshot($this->backupGlobals === true);

        $this->snapshot = $snapshot;
    }

    private function restoreGlobalState(): void
    {
        if (!$this->snapshot instanceof Snapshot) {
            return;
        }

        if (ConfigurationRegistry::get()->beStrictAboutChangesToGlobalState()) {
            $this->compareGlobalStateSnapshots(
                $this->snapshot,
                $this->createGlobalStateSnapshot($this->backupGlobals === true),
            );
        }

        $restorer = new Restorer;

        if ($this->backupGlobals) {
            $restorer->restoreGlobalVariables($this->snapshot);
        }

        if ($this->backupStaticProperties) {
            $restorer->restoreStaticProperties($this->snapshot);
        }

        $this->snapshot = null;
    }

    private function createGlobalStateSnapshot(bool $backupGlobals): Snapshot
    {
        $excludeList = new GlobalStateExcludeList;

        foreach ($this->backupGlobalsExcludeList as $globalVariable) {
            $excludeList->addGlobalVariable($globalVariable);
        }

        if (!defined('PHPUNIT_TESTSUITE')) {
            $excludeList->addClassNamePrefix('PHPUnit');
            $excludeList->addClassNamePrefix('SebastianBergmann\CodeCoverage');
            $excludeList->addClassNamePrefix('SebastianBergmann\FileIterator');
            $excludeList->addClassNamePrefix('SebastianBergmann\Invoker');
            $excludeList->addClassNamePrefix('SebastianBergmann\Template');
            $excludeList->addClassNamePrefix('SebastianBergmann\Timer');

            foreach (array_keys($GLOBALS) as $key) {
                if (str_starts_with($key, '__phpunit_')) {
                    $excludeList->addGlobalVariable($key);
                }
            }

            $excludeList->addStaticProperty(ComparatorFactory::class, 'instance');

            foreach ($this->backupStaticPropertiesExcludeList as $class => $properties) {
                foreach ($properties as $property) {
                    $excludeList->addStaticProperty($class, $property);
                }
            }
        }

        try {
            return new Snapshot(
                $excludeList,
                $backupGlobals,
                (bool) $this->backupStaticProperties,
                false,
                false,
                false,
                false,
                false,
                false,
                false,
            );
        } catch (Throwable $t) {
            Event\Facade::emitter()->testPreparationFailed(
                $this->valueObjectForEvents(),
                Event\Code\ThrowableBuilder::from($t),
            );

            Event\Facade::emitter()->testErrored(
                $this->valueObjectForEvents(),
                Event\Code\ThrowableBuilder::from($t),
            );

            throw $t;
        }
    }

    private function compareGlobalStateSnapshots(Snapshot $before, Snapshot $after): void
    {
        $backupGlobals = $this->backupGlobals === null || $this->backupGlobals;

        if ($backupGlobals) {
            $this->compareGlobalStateSnapshotPart(
                $before->globalVariables(),
                $after->globalVariables(),
                "--- Global variables before the test\n+++ Global variables after the test\n",
            );

            $this->compareGlobalStateSnapshotPart(
                $before->superGlobalVariables(),
                $after->superGlobalVariables(),
                "--- Super-global variables before the test\n+++ Super-global variables after the test\n",
            );
        }

        if ($this->backupStaticProperties) {
            $this->compareGlobalStateSnapshotPart(
                $before->staticProperties(),
                $after->staticProperties(),
                "--- Static properties before the test\n+++ Static properties after the test\n",
            );
        }
    }

    /**
     * @param array<mixed> $before
     * @param array<mixed> $after
     */
    private function compareGlobalStateSnapshotPart(array $before, array $after, string $header): void
    {
        if ($before === $after) {
            return;
        }

        $differ = new Differ(new UnifiedDiffOutputBuilder($header));

        Event\Facade::emitter()->testConsideredRisky(
            $this->valueObjectForEvents(),
            'This test modified global state but was not expected to do so' . PHP_EOL .
            trim(
                $differ->diff(
                    Exporter::export($before),
                    Exporter::export($after),
                ),
            ),
        );
    }

    private function handleEnvironmentVariables(): void
    {
        $withEnvironmentVariables = MetadataRegistry::parser()->forClassAndMethod(static::class, $this->methodName)->isWithEnvironmentVariable();

        $environmentVariables = [];

        foreach ($withEnvironmentVariables as $metadata) {
            assert($metadata instanceof WithEnvironmentVariable);

            $environmentVariables[$metadata->environmentVariableName()] = $metadata->value();
        }

        foreach ($environmentVariables as $environmentVariableName => $environmentVariableValue) {
            $this->backupEnvironmentVariables = [...$this->backupEnvironmentVariables, ...BackedUpEnvironmentVariable::create($environmentVariableName)];

            if ($environmentVariableValue === null) {
                unset($_ENV[$environmentVariableName]);
                putenv($environmentVariableName);
            } else {
                $_ENV[$environmentVariableName] = $environmentVariableValue;
                putenv("{$environmentVariableName}={$environmentVariableValue}");
            }
        }
    }

    private function restoreEnvironmentVariables(): void
    {
        foreach ($this->backupEnvironmentVariables as $backupEnvironmentVariable) {
            $backupEnvironmentVariable->restore();
        }

        $this->backupEnvironmentVariables = [];
    }

    private function shouldInvocationMockerBeReset(MockObject $mock): bool
    {
        $enumerator = new Enumerator;

        if (in_array($mock, $enumerator->enumerate($this->dependencyInput), true)) {
            return false;
        }

        if (!is_array($this->testResult) && !is_object($this->testResult)) {
            return true;
        }

        return !in_array($mock, $enumerator->enumerate($this->testResult), true);
    }

    private function unregisterCustomComparators(): void
    {
        $factory = ComparatorFactory::getInstance();

        foreach ($this->customComparators as $comparator) {
            $factory->unregister($comparator);
        }

        $this->customComparators = [];
    }

    /**
     * @throws Exception
     */
    private function shouldExceptionExpectationsBeVerified(Throwable $throwable): bool
    {
        $result = false;

        if ($this->expectedException !== null || $this->expectedExceptionCode !== null || $this->expectedExceptionMessage !== null || $this->expectedExceptionMessageRegExp !== null) {
            $result = true;
        }

        if ($throwable instanceof Exception) {
            $result = false;
        }

        if (is_string($this->expectedException)) {
            try {
                $reflector = new ReflectionClass($this->expectedException);
                // @codeCoverageIgnoreStart
            } catch (ReflectionException $e) {
                throw new Exception(
                    $e->getMessage(),
                    $e->getCode(),
                    $e,
                );
            }
            // @codeCoverageIgnoreEnd

            if ($this->expectedException === 'PHPUnit\Framework\Exception' ||
                $this->expectedException === '\PHPUnit\Framework\Exception' ||
                $reflector->isSubclassOf(Exception::class)) {
                $result = true;
            }
        }

        return $result;
    }

    private function shouldRunInSeparateProcess(): bool
    {
        if ($this->inIsolation) {
            return false;
        }

        if ($this->runTestInSeparateProcess) {
            return true;
        }

        if ($this->runClassInSeparateProcess) {
            return true;
        }

        return ConfigurationRegistry::get()->processIsolation();
    }

    private function isCallableTestMethod(string $dependency): bool
    {
        [$className, $methodName] = explode('::', $dependency);

        if (!class_exists($className)) {
            return false;
        }

        $class = new ReflectionClass($className);

        if (!$class->isSubclassOf(__CLASS__)) {
            return false;
        }

        if (!$class->hasMethod($methodName)) {
            return false;
        }

        return TestUtil::isTestMethod(
            $class->getMethod($methodName),
        );
    }

    /**
     * @throws Exception
     * @throws ExpectationFailedException
     * @throws NoPreviousThrowableException
     */
    private function performAssertionsOnOutput(): void
    {
        try {
            if ($this->outputExpectedRegex !== null) {
                $this->assertMatchesRegularExpression($this->outputExpectedRegex, $this->output);
            } elseif ($this->outputExpectedString !== null) {
                $this->assertSame($this->outputExpectedString, $this->output);
            }
        } catch (ExpectationFailedException $e) {
            $this->status = TestStatus::failure($e->getMessage());

            Event\Facade::emitter()->testFailed(
                $this->valueObjectForEvents(),
                Event\Code\ThrowableBuilder::from($e),
                Event\Code\ComparisonFailureBuilder::from($e),
            );

            throw $e;
        }
    }

    /**
     * @param array{beforeClass: HookMethodCollection, before: HookMethodCollection, preCondition: HookMethodCollection, postCondition: HookMethodCollection, after: HookMethodCollection, afterClass: HookMethodCollection} $hookMethods
     *
     * @throws Throwable
     *
     * @codeCoverageIgnore
     */
    private function invokeBeforeClassHookMethods(array $hookMethods, Event\Emitter $emitter): void
    {
        $this->invokeHookMethods(
            $hookMethods['beforeClass'],
            $emitter,
            'beforeFirstTestMethodCalled',
            'beforeFirstTestMethodErrored',
            'beforeFirstTestMethodFailed',
            'beforeFirstTestMethodFinished',
            false,
        );
    }

    /**
     * @param array{beforeClass: HookMethodCollection, before: HookMethodCollection, preCondition: HookMethodCollection, postCondition: HookMethodCollection, after: HookMethodCollection, afterClass: HookMethodCollection} $hookMethods
     *
     * @throws Throwable
     */
    private function invokeBeforeTestHookMethods(array $hookMethods, Event\Emitter $emitter): void
    {
        $this->invokeHookMethods(
            $hookMethods['before'],
            $emitter,
            'beforeTestMethodCalled',
            'beforeTestMethodErrored',
            'beforeTestMethodFailed',
            'beforeTestMethodFinished',
        );
    }

    /**
     * @param array{beforeClass: HookMethodCollection, before: HookMethodCollection, preCondition: HookMethodCollection, postCondition: HookMethodCollection, after: HookMethodCollection, afterClass: HookMethodCollection} $hookMethods
     *
     * @throws Throwable
     */
    private function invokePreConditionHookMethods(array $hookMethods, Event\Emitter $emitter): void
    {
        $this->invokeHookMethods(
            $hookMethods['preCondition'],
            $emitter,
            'preConditionCalled',
            'preConditionErrored',
            'preConditionFailed',
            'preConditionFinished',
        );
    }

    /**
     * @param array{beforeClass: HookMethodCollection, before: HookMethodCollection, preCondition: HookMethodCollection, postCondition: HookMethodCollection, after: HookMethodCollection, afterClass: HookMethodCollection} $hookMethods
     *
     * @throws Throwable
     */
    private function invokePostConditionHookMethods(array $hookMethods, Event\Emitter $emitter): void
    {
        $this->invokeHookMethods(
            $hookMethods['postCondition'],
            $emitter,
            'postConditionCalled',
            'postConditionErrored',
            'postConditionFailed',
            'postConditionFinished',
        );
    }

    /**
     * @param array{beforeClass: HookMethodCollection, before: HookMethodCollection, preCondition: HookMethodCollection, postCondition: HookMethodCollection, after: HookMethodCollection, afterClass: HookMethodCollection} $hookMethods
     *
     * @throws Throwable
     */
    private function invokeAfterTestHookMethods(array $hookMethods, Event\Emitter $emitter): void
    {
        $this->invokeHookMethods(
            $hookMethods['after'],
            $emitter,
            'afterTestMethodCalled',
            'afterTestMethodErrored',
            'afterTestMethodFailed',
            'afterTestMethodFinished',
        );
    }

    /**
     * @param array{beforeClass: HookMethodCollection, before: HookMethodCollection, preCondition: HookMethodCollection, postCondition: HookMethodCollection, after: HookMethodCollection, afterClass: HookMethodCollection} $hookMethods
     *
     * @throws Throwable
     *
     * @codeCoverageIgnore
     */
    private function invokeAfterClassHookMethods(array $hookMethods, Event\Emitter $emitter): void
    {
        $this->invokeHookMethods(
            $hookMethods['afterClass'],
            $emitter,
            'afterLastTestMethodCalled',
            'afterLastTestMethodErrored',
            'afterLastTestMethodFailed',
            'afterLastTestMethodFinished',
            false,
        );
    }

    /**
     * @param 'afterLastTestMethodCalled'|'afterTestMethodCalled'|'beforeFirstTestMethodCalled'|'beforeTestMethodCalled'|'postConditionCalled'|'preConditionCalled'             $calledMethod
     * @param 'afterLastTestMethodErrored'|'afterTestMethodErrored'|'beforeFirstTestMethodErrored'|'beforeTestMethodErrored'|'postConditionErrored'|'preConditionErrored'       $erroredMethod
     * @param 'afterLastTestMethodFailed'|'afterTestMethodFailed'|'beforeFirstTestMethodFailed'|'beforeTestMethodFailed'|'postConditionFailed'|'preConditionFailed'             $failedMethod
     * @param 'afterLastTestMethodFinished'|'afterTestMethodFinished'|'beforeFirstTestMethodFinished'|'beforeTestMethodFinished'|'postConditionFinished'|'preConditionFinished' $finishedMethod
     *
     * @throws Throwable
     */
    private function invokeHookMethods(HookMethodCollection $hookMethods, Event\Emitter $emitter, string $calledMethod, string $erroredMethod, string $failedMethod, string $finishedMethod, bool $forTestCase = true): void
    {
        if ($forTestCase) {
            $test = $this->valueObjectForEvents();
        } else {
            $test = static::class;
        }

        $methodsInvoked = [];

        foreach ($hookMethods->methodNamesSortedByPriority() as $methodName) {
            if ($this->methodDoesNotExistOrIsDeclaredInTestCase($methodName)) {
                continue;
            }

            $methodInvoked = new Event\Code\ClassMethod(
                static::class,
                $methodName,
            );

            try {
                /** @phpstan-ignore method.dynamicName */
                $this->{$methodName}();
            } catch (Throwable $t) {
            }

            /** @phpstan-ignore method.dynamicName */
            $emitter->{$calledMethod}(
                $test,
                $methodInvoked
            );

            $methodsInvoked[] = $methodInvoked;

            if (isset($t) && !$t instanceof SkippedTest) {
                if ($t instanceof AssertionFailedError) {
                    $method = $failedMethod;
                } else {
                    $method = $erroredMethod;
                }

                /** @phpstan-ignore method.dynamicName */
                $emitter->{$method}(
                    $test,
                    $methodInvoked,
                    Event\Code\ThrowableBuilder::from($t),
                );

                break;
            }
        }

        if ($methodsInvoked !== []) {
            /** @phpstan-ignore method.dynamicName */
            $emitter->{$finishedMethod}(
                $test,
                ...$methodsInvoked
            );
        }

        if (isset($t)) {
            throw $t;
        }
    }

    /**
     * @param non-empty-string $methodName
     */
    private function methodDoesNotExistOrIsDeclaredInTestCase(string $methodName): bool
    {
        $reflector = new ReflectionObject($this);

        return !$reflector->hasMethod($methodName) ||
               $reflector->getMethod($methodName)->getDeclaringClass()->getName() === self::class;
    }

    /**
     * @throws ExpectationFailedException
     */
    private function verifyExceptionExpectations(\Exception|Throwable $exception): void
    {
        if ($this->expectedException !== null) {
            $this->assertThat(
                $exception,
                new ExceptionConstraint(
                    $this->expectedException,
                ),
            );
        }

        if ($this->expectedExceptionMessage !== null) {
            $this->assertThat(
                $exception->getMessage(),
                new ExceptionMessageIsOrContains(
                    $this->expectedExceptionMessage,
                ),
            );
        }

        if ($this->expectedExceptionMessageRegExp !== null) {
            $this->assertThat(
                $exception->getMessage(),
                new ExceptionMessageMatchesRegularExpression(
                    $this->expectedExceptionMessageRegExp,
                ),
            );
        }

        if ($this->expectedExceptionCode !== null) {
            $this->assertThat(
                $exception->getCode(),
                new ExceptionCode(
                    $this->expectedExceptionCode,
                ),
            );
        }
    }

    /**
     * @throws AssertionFailedError
     */
    private function expectedExceptionWasNotRaised(): void
    {
        if ($this->expectedException !== null) {
            $this->assertThat(
                null,
                new ExceptionConstraint($this->expectedException),
            );
        } elseif ($this->expectedExceptionMessage !== null) {
            $this->numberOfAssertionsPerformed++;

            throw new AssertionFailedError(
                sprintf(
                    'Failed asserting that exception with message "%s" is thrown',
                    $this->expectedExceptionMessage,
                ),
            );
        } elseif ($this->expectedExceptionMessageRegExp !== null) {
            $this->numberOfAssertionsPerformed++;

            throw new AssertionFailedError(
                sprintf(
                    'Failed asserting that exception with message matching "%s" is thrown',
                    $this->expectedExceptionMessageRegExp,
                ),
            );
        } elseif ($this->expectedExceptionCode !== null) {
            $this->numberOfAssertionsPerformed++;

            throw new AssertionFailedError(
                sprintf(
                    'Failed asserting that exception with code "%s" is thrown',
                    $this->expectedExceptionCode,
                ),
            );
        }
    }

    private function isRegisteredFailure(Throwable $t): bool
    {
        foreach (array_keys($this->failureTypes) as $failureType) {
            if ($t instanceof $failureType) {
                return true;
            }
        }

        return false;
    }

    /**
     * @internal This method is not covered by the backward compatibility promise for PHPUnit
     */
    private function hasExpectationOnOutput(): bool
    {
        return is_string($this->outputExpectedString) || is_string($this->outputExpectedRegex);
    }

    private function requirementsNotSatisfied(): bool
    {
        return (new Requirements)->requirementsNotSatisfiedFor(static::class, $this->methodName) !== [];
    }

    private function requiresXdebug(): bool
    {
        return (new Requirements)->requiresXdebug(static::class, $this->methodName);
    }

    /**
     * @see https://github.com/sebastianbergmann/phpunit/issues/6095
     */
    private function handleExceptionFromInvokedCountMockObjectRule(Throwable $t): void
    {
        if (!$t instanceof ExpectationFailedException) {
            return;
        }

        $trace = $t->getTrace();

        if (isset($trace[0]['class']) && $trace[0]['class'] === InvokedCount::class) {
            $this->numberOfAssertionsPerformed++;
        }
    }

    private function startErrorLogCapture(): void
    {
        if (ini_get('display_errors') === '0') {
            ShutdownHandler::setMessage(
                'Fatal error: Premature end of PHPUnit\'s PHP process. Use display_errors=On to see the error message.',
            );
        }

        $errorLogCapture = tmpfile();

        if ($errorLogCapture === false) {
            return;
        }

        $capturePath = stream_get_meta_data($errorLogCapture)['uri'];

        if (!@is_writable($capturePath)) {
            return;
        }

        $this->errorLogCapture        = $errorLogCapture;
        $this->previousErrorLogTarget = ini_set('error_log', $capturePath);
    }

    /**
     * @throws ErrorLogNotWritableException
     */
    private function verifyErrorLogExpectation(): void
    {
        if ($this->errorLogCapture === false) {
            if ($this->expectErrorLog) {
                throw new ErrorLogNotWritableException;
            }

            return;
        }

        $errorLogOutput = stream_get_contents($this->errorLogCapture);

        if ($this->expectErrorLog) {
            $this->assertNotEmpty($errorLogOutput, 'error_log() was not called');

            return;
        }

        if ($errorLogOutput === false) {
            return;
        }

        print $this->stripDateFromErrorLog($errorLogOutput);
    }

    private function handleErrorLogError(): void
    {
        if ($this->errorLogCapture === false) {
            return;
        }

        if ($this->expectErrorLog) {
            return;
        }

        $errorLogOutput = stream_get_contents($this->errorLogCapture);

        if ($errorLogOutput !== false) {
            print $this->stripDateFromErrorLog($errorLogOutput);
        }
    }

    private function stopErrorLogCapture(): void
    {
        if ($this->errorLogCapture === false) {
            return;
        }

        ShutdownHandler::resetMessage();

        fclose($this->errorLogCapture);

        $this->errorLogCapture = false;

        if ($this->previousErrorLogTarget === false) {
            return;
        }

        ini_set('error_log', $this->previousErrorLogTarget);

        $this->previousErrorLogTarget = false;
    }

    private function allowsMockObjectsWithoutExpectations(): bool
    {
        return MetadataRegistry::parser()->forClassAndMethod(static::class, $this->methodName)->isAllowMockObjectsWithoutExpectations()->isNotEmpty();
    }

    /**
     * Returns a builder object to create test stubs using a fluent interface.
     *
     * @template RealInstanceType of object
     *
     * @param class-string<RealInstanceType> $className
     *
     * @return TestStubBuilder<RealInstanceType>
     */
    final protected static function getStubBuilder(string $className): TestStubBuilder
    {
        return new TestStubBuilder($className);
    }

    /**
     * Creates a test stub for the specified interface or class.
     *
     * @template RealInstanceType of object
     *
     * @param class-string<RealInstanceType> $type
     *
     * @throws InvalidArgumentException
     * @throws MockObjectException
     * @throws NoPreviousThrowableException
     *
     * @return RealInstanceType&Stub
     */
    final protected static function createStub(string $type): Stub
    {
        $stub = (new MockGenerator)->testDouble(
            $type,
            false,
            callOriginalConstructor: false,
            callOriginalClone: false,
            returnValueGeneration: self::generateReturnValuesForTestDoubles(),
        );

        Event\Facade::emitter()->testCreatedStub($type);

        assert($stub instanceof $type);
        assert($stub instanceof Stub);

        return $stub;
    }

    /**
     * @param list<class-string> $interfaces
     *
     * @throws MockObjectException
     */
    final protected static function createStubForIntersectionOfInterfaces(array $interfaces): Stub
    {
        $stub = (new MockGenerator)->testDoubleForInterfaceIntersection(
            $interfaces,
            false,
            returnValueGeneration: self::generateReturnValuesForTestDoubles(),
        );

        Event\Facade::emitter()->testCreatedStubForIntersectionOfInterfaces($interfaces);

        return $stub;
    }

    /**
     * Creates (and configures) a test stub for the specified interface or class.
     *
     * @template RealInstanceType of object
     *
     * @param class-string<RealInstanceType> $type
     * @param array<non-empty-string, mixed> $configuration
     *
     * @throws InvalidArgumentException
     * @throws MockObjectException
     * @throws NoPreviousThrowableException
     *
     * @return RealInstanceType&Stub
     */
    final protected static function createConfiguredStub(string $type, array $configuration): Stub
    {
        $o = self::createStub($type);

        foreach ($configuration as $method => $return) {
            $o->method($method)->willReturn($return);
        }

        return $o;
    }

    private static function generateReturnValuesForTestDoubles(): bool
    {
        return MetadataRegistry::parser()->forClass(static::class)->isDisableReturnValueGenerationForTestDoubles()->isEmpty();
    }
}
