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<?php

namespace Faker\Test;

use Faker\Container\Container;
use Faker\Container\ContainerBuilder;
use Faker\Core\Blood;
use Faker\Core\File;
use Faker\Extension\BloodExtension;
use Faker\Extension\ExtensionNotFound;
use Faker\Extension\FileExtension;
use Faker\Generator;
use Faker\Provider;
use Faker\UniqueGenerator;

/**
 * @covers \Faker\Generator
 */
final class GeneratorTest extends TestCase
{
    public function testExtReturnsAnExtensionWhenContainerHasACorrespondingDefinition(): void
    {
        $generator = new Generator(new Container([
            'file' => File::class,
        ]));

$ext = $generator->ext('file');

self::assertInstanceOf(File::class, $ext);
    }

public function testExtThrowsAnExtensionNotFoundExceptionWhenContainerDoesNotHaveACorrespondingDefinition(): void
    {
        $generator = new Generator(new Container([]));

$this->expectException(ExtensionNotFound::class);

$generator->ext('foobar');
    }

public function testConstructorBuildsDefaultExtensions(): void
    {
        $generator = new Generator();

$ext = $generator->ext(FileExtension::class);

self::assertInstanceOf(FileExtension::class, $ext);
        self::assertInstanceOf(File::class, $ext);
    }

public function testMimeType(): void
    {
        $generator = new Generator();

$mime = $generator->mimeType();

self::assertMatchesRegularExpression('|.*/.*|', $mime);
    }

public function testAddProviderGivesPriorityToNewlyAddedProvider(): void
    {
        $this->faker->addProvider(new Fixture\Provider\FooProvider());
        $this->faker->addProvider(new Fixture\Provider\BarProvider());
        self::assertEquals('barfoo', $this->faker->format('fooFormatter'));
    }

public function testGetProvidersReturnsCorrectProviders(): void
    {
        $this->faker->addProvider(new Fixture\Provider\FooProvider());
        $this->faker->addProvider(new Fixture\Provider\BarProvider());
        self::assertInstanceOf(Fixture\Provider\FooProvider::class, $this->faker->getProviders()[1]);
        self::assertInstanceOf(Fixture\Provider\BarProvider::class, $this->faker->getProviders()[0]);
        self::assertCount(2, $this->faker->getProviders());
    }

public function testGetFormatterReturnsCallable(): void
    {
        $this->faker->addProvider(new Fixture\Provider\FooProvider());
        self::assertIsCallable($this->faker->getFormatter('fooFormatter'));
    }

public function testGetFormatterReturnsCorrectFormatter(): void
    {
        $provider = new Fixture\Provider\FooProvider();
        $this->faker->addProvider($provider);
        $expected = [$provider, 'fooFormatter'];
        self::assertEquals($expected, $this->faker->getFormatter('fooFormatter'));
    }

public function testAddProviderClearsPreviousFormatters(): void
    {
        $this->faker->addProvider(new Fixture\Provider\FooProvider());

$this->faker->fooFormatter();

$newProvider = new Fixture\Provider\BarProvider();

$this->faker->addProvider($newProvider);

$expected = [
            $newProvider,
            'fooFormatter',
        ];

self::assertSame($expected, $this->faker->getFormatter('fooFormatter'));
    }

public function testGetFormatterThrowsExceptionOnIncorrectProvider(): void
    {
        $this->expectException(\InvalidArgumentException::class);
        $this->faker->getFormatter('fooFormatter');
    }

public function testGetFormatterThrowsExceptionOnIncorrectFormatter(): void
    {
        $this->expectException(\InvalidArgumentException::class);
        $this->faker->addProvider(new Fixture\Provider\FooProvider());
        $this->faker->getFormatter('barFormatter');
    }

public function testFormatCallsFormatterOnProvider(): void
    {
        $this->faker->addProvider(new Fixture\Provider\FooProvider());
        self::assertEquals('foobar', $this->faker->format('fooFormatter'));
    }

public function testFormatTransfersArgumentsToFormatter(): void
    {
        $this->faker = new Generator();
        $provider = new Fixture\Provider\FooProvider();
        $this->faker->addProvider($provider);
        self::assertEquals('bazfoo', $this->faker->format('fooFormatterWithArguments', ['foo']));
    }

public function testFormatterCallsGenerator(): void
    {
        $builder = new ContainerBuilder();
        $builder->add(BloodExtension::class, Blood::class);
        $faker = new Generator($builder->build());

$output = $faker->format('bloodType');
        self::assertTrue(in_array($output, ['A', 'AB', 'B', '0'], true));
    }

public function testFormatterCallsExtension(): void
    {
        $builder = new ContainerBuilder();
        $builder->add(Blood::class, Blood::class);
        $faker = new Generator($builder->build());

$output = $faker->format('Faker\Core\Blood->bloodType');
        self::assertTrue(in_array($output, ['A', 'AB', 'B', '0'], true));
    }

public function testParseReturnsSameStringWhenItContainsNoCurlyBraces(): void
    {
        self::assertEquals('fooBar#?', $this->faker->parse('fooBar#?'));
    }

public function testParseReturnsStringWithTokensReplacedByFormatters(): void
    {
        $this->faker->addProvider(new Fixture\Provider\FooProvider());
        self::assertEquals('This is foobar a text with foobar', $this->faker->parse('This is {{fooFormatter}} a text with {{ fooFormatter }}'));
    }

/**
     * @group legacy
     */
    public function testMagicGetCallsFormat(): void
    {
        $this->faker->addProvider(new Fixture\Provider\FooProvider());
        self::assertEquals('foobar', $this->faker->fooFormatter);
    }

public function testMagicCallCallsFormat(): void
    {
        $this->faker->addProvider(new Fixture\Provider\FooProvider());
        self::assertEquals('foobar', $this->faker->fooFormatter());
    }

public function testMagicCallCallsFormatWithArguments(): void
    {
        $this->faker->addProvider(new Fixture\Provider\FooProvider());
        self::assertEquals('bazfoo', $this->faker->fooFormatterWithArguments('foo'));
    }

public function testSeed(): void
    {
        $this->faker->seed(0);
        $mtRandWithSeedZero = mt_rand();
        $this->faker->seed(0);
        self::assertEquals($mtRandWithSeedZero, mt_rand(), 'seed(0) should be deterministic.');

$this->faker->seed();
        $mtRandWithoutSeed = mt_rand();
        self::assertNotEquals($mtRandWithSeedZero, $mtRandWithoutSeed, 'seed() should be different than seed(0)');
        $this->faker->seed();
        self::assertNotEquals($mtRandWithoutSeed, mt_rand(), 'seed() should not be deterministic.');

$this->faker->seed('10');
        self::assertTrue(true, 'seeding with a non int value doesn\'t throw an exception');
    }

public function testUniqueReturnsUniqueGenerator(): void
    {
        $generator = new Generator();

$generator->addProvider(new Provider\Base($generator));

$uniqueGenerator = $generator->unique();

self::assertInstanceOf(UniqueGenerator::class, $uniqueGenerator);
    }

public function testUniqueReturnsSameUniqueGeneratorWhenUsedWithoutArguments(): void
    {
        $generator = new Generator();

$generator->addProvider(new Provider\Base($generator));

$uniqueGenerator = $generator->unique();

self::assertSame($uniqueGenerator, $generator->unique());
    }

public function testUniqueReturnsSameUniqueGeneratorWhenResetIsFalse(): void
    {
        $generator = new Generator();

$generator->addProvider(new Provider\Base($generator));

$uniqueGenerator = $generator->unique();

self::assertSame($uniqueGenerator, $generator->unique(false));
    }

public function testUniqueReturnsDifferentUniqueGeneratorWhenResetIsTrue(): void
    {
        $generator = new Generator();

$generator->addProvider(new Provider\Base($generator));

$uniqueGenerator = $generator->unique();

self::assertNotSame($uniqueGenerator, $generator->unique(true));
    }

/**
     * @requires PHP < 8.3
     */
    public function testUniqueReturnsUniqueGeneratorThatGeneratesUniqueValues(): void
    {
        $words = [
            'foo',
            'bar',
            'baz',
        ];

$generator = new Generator();

$generator->addProvider(new Provider\Base($generator));
        $generator->addProvider(new class(...$words) {
            private $words;

public function __construct(string ...$words)
            {
                $this->words = $words;
            }

public function word(): string
            {
                $key = array_rand($this->words);

return $this->words[$key];
            }
        });

$uniqueGenerator = $generator->unique();

$generatedWords = [
            $uniqueGenerator->word(),
            $uniqueGenerator->word(),
            $uniqueGenerator->word(),
        ];

self::assertEquals($words, $generatedWords);
    }

public function testUniqueReturnsUniqueGeneratorThatThrowsWhenItCanNotGenerateUniqueValuesAnymore(): void
    {
        $words = [
            'foo',
        ];

$maxRetries = 90;

$generator = new Generator();

$generator->addProvider(new Provider\Base($generator));
        $generator->addProvider(new class(...$words) {
            private $words;

public function __construct(string ...$words)
            {
                $this->words = $words;
            }

public function word(): string
            {
                $key = array_rand($this->words);

return $this->words[$key];
            }
        });

$uniqueGenerator = $generator->unique(
            false,
            $maxRetries,
        );

$uniqueGenerator->word();

$this->expectException(\OverflowException::class);
        $this->expectExceptionMessage(sprintf(
            'Maximum retries of %d reached without finding a unique value',
            $maxRetries,
        ));

$uniqueGenerator->word();
    }
}