PHP-CS-Fixer/tests/Fixer/ClassNotation/ClassDefinitionFixerTest.php

<?php

declare(strict_types=1);

/*
 * This file is part of PHP CS Fixer.
 *
 * (c) Fabien Potencier <fabien@symfony.com>
 *     Dariusz Rumiński <dariusz.ruminski@gmail.com>
 *
 * This source file is subject to the MIT license that is bundled
 * with this source code in the file LICENSE.
 */

namespace PhpCsFixer\Tests\Fixer\ClassNotation;

use PhpCsFixer\ConfigurationException\InvalidFixerConfigurationException;
use PhpCsFixer\Fixer\ClassNotation\ClassDefinitionFixer;
use PhpCsFixer\Tests\Test\AbstractFixerTestCase;
use PhpCsFixer\Tokenizer\Tokens;
use PhpCsFixer\WhitespacesFixerConfig;

/**
 * @internal
 *
 * @covers \PhpCsFixer\Fixer\ClassNotation\ClassDefinitionFixer
 *
 * @extends AbstractFixerTestCase<\PhpCsFixer\Fixer\ClassNotation\ClassDefinitionFixer>
 *
 * @phpstan-import-type _AutogeneratedInputConfiguration from \PhpCsFixer\Fixer\ClassNotation\ClassDefinitionFixer
 */
final class ClassDefinitionFixerTest extends AbstractFixerTestCase
{
    public function testConfigure(): void
    {
        $defaultConfig = [
            'inline_constructor_arguments' => true,
            'multi_line_extends_each_single_line' => false,
            'single_item_single_line' => false,
            'single_line' => false,
            'space_before_parenthesis' => false,
        ];

        $fixer = new ClassDefinitionFixer();
        $fixer->configure($defaultConfig);
        self::assertConfigurationSame($defaultConfig, $fixer);

        $fixer->configure([]);
        self::assertConfigurationSame($defaultConfig, $fixer);
    }

    /**
     * @param _AutogeneratedInputConfiguration $config
     *
     * @dataProvider provideInvalidConfigurationCases
     */
    public function testInvalidConfiguration(array $config, string $exceptionExpression): void
    {
        $this->expectException(InvalidFixerConfigurationException::class);
        $this->expectExceptionMessageMatches($exceptionExpression);

        $this->fixer->configure($config);
    }

    /**
     * @return iterable<array{array<string, mixed>, string}>
     */
    public static function provideInvalidConfigurationCases(): iterable
    {
        yield 'invalid configuration key' => [
            ['a' => false],
            '/^\[class_definition\] Invalid configuration: The option "a" does not exist\. Defined options are: "inline_constructor_arguments", "multi_line_extends_each_single_line", "single_item_single_line", "single_line", "space_before_parenthesis"\.$/',
        ];

        yield 'invalid configuration value' => [
            ['single_line' => 'z'],
            '/^\[class_definition\] Invalid configuration: The option "single_line" with value "z" is expected to be of type "bool", but is of type "string"\.$/',
        ];
    }

    /**
     * @param _AutogeneratedInputConfiguration $configuration
     *
     * @dataProvider provideFixCases
     */
    public function testFix(string $expected, ?string $input = null, array $configuration = []): void
    {
        $this->fixer->configure($configuration);
        $this->doTest($expected, $input);
    }

    public static function provideFixCases(): iterable
    {
        yield [
            '<?php $a = new class(0) extends SomeClass implements SomeInterface, D {};',
            "<?php \$a = new    class(0)     extends\nSomeClass\timplements    SomeInterface, D {};",
        ];

        yield [
            '<?php $a = new class(1) extends SomeClass implements SomeInterface, D {};',
            "<?php \$a = new    class(1)     extends\nSomeClass\timplements    SomeInterface, D {};",
            ['single_line' => true],
        ];

        yield [
            "<?php \$a = new class('1a') implements\nA\n{};",
            "<?php \$a = new class('1a')   implements\nA{};",
        ];

        yield [
            "<?php \$a = new class('1a') implements A {};",
            "<?php \$a = new class('1a')   implements\nA{};",
            ['single_item_single_line' => true],
        ];

        yield [
            '<?php $a = new class {};',
            '<?php $a = new class{};',
        ];

        yield [
            '<?php $a = new class {};',
            "<?php \$a = new class\n{};",
        ];

        yield [
            '<?php $a = new class() {};',
            "<?php \$a = new\n class  (  ){};",
        ];

        yield [
            '<?php $a = new class(  ) {};',
            "<?php \$a = new\n class  (  ){};",
            ['inline_constructor_arguments' => false],
        ];

        yield [
            '<?php $a = new class implements Foo {};',
            "<?php \$a = new\n class    implements Foo {};",
            ['inline_constructor_arguments' => false],
        ];

        yield [
            '<?php $a = new class( $this->foo() , bar ( $a) ) {};',
            "<?php \$a = new\n class  ( \$this->foo() , bar ( \$a) ){};",
            ['inline_constructor_arguments' => false],
        ];

        yield [
            '<?php $a = new class(10, 1, /**/ 2) {};',
            '<?php $a = new class(  10, 1,/**/2  ){};',
        ];

        yield [
            '<?php $a = new class(  10, 1,/**/2  ) {};',
            '<?php $a = new class(  10, 1,/**/2  ){};',
            ['inline_constructor_arguments' => false],
        ];

        yield [
            '<?php $a = new class(2) {};',
            '<?php $a = new    class(2){};',
        ];

        yield [
            '<?php $a = new class($this->prop) {};',
            '<?php $a = new class(   $this->prop   ){};',
        ];

        yield [
            '<?php $a = new class(   $this->prop   ) {};',
            '<?php $a = new class(   $this->prop   ){};',
            ['inline_constructor_arguments' => false],
        ];

        yield [
            "<?php \$a = new class(\n\t\$a,\n\t\$b,\n\t\$c,\n\t\$d) implements A, B {};",
            "<?php \$a = new class(\n\t\$a,\n\t\$b,\n\t\$c,\n\t\$d) implements  A, \t B{};",
            ['inline_constructor_arguments' => false],
        ];

        yield [
            "<?php \$a = new class(\n\t\$a,\n\t\$b,\n\t\$c,\n\t\$d) implements A, B {};",
            "<?php \$a = new   class  (\n\t\$a,\n\t\$b,\n\t\$c,\n\t\$d)    implements  A, \t B{};",
            ['inline_constructor_arguments' => false],
        ];

        yield [
            '<?php $a = new class($this->prop, $v[3], 4) {};',
            '<?php $a = new class(   $this->prop,$v[3],   4)         {};',
        ];

        yield 'PSR-12 Extends/Implements Parenthesis on the next line.' => [
            '<?php
$instance = new class extends \Foo implements
\ArrayAccess,
    \Countable,
    \Serializable
{};',
            '<?php
$instance = new class   extends \Foo  implements
\ArrayAccess,\Countable,\Serializable{};',
        ];

        yield 'PSR-12 Implements Parenthesis on the next line.' => [
            '<?php
$instance = new class implements
\ArrayAccess,
    \Countable,
    \Serializable
{};',
            '<?php
$instance = new class implements
\ArrayAccess,\Countable,\Serializable{};',
        ];

        yield 'PSR-12 Extends Parenthesis on the next line.' => [
            '<?php
$instance = new class extends
ArrayAccess
{};',
            '<?php
$instance = new class
extends
ArrayAccess
{};',
        ];

        yield [
            "<?php \$a = new #
class #
( #
'1a', #
1 #
) #
implements#
A, #
B,
    C #
{#
#
}#
;",
            "<?php \$a = new#
class#
(#
'1a',#
1 #
)#
implements#
A, #
B,C#
{#
#
}#
;",
        ];

        yield [
            "<?php \$a = new #
class #
( #
'1a', #
1 #
) #
implements #
A #
{#
#
}#
;",
            "<?php \$a = new#
class#
(#
'1a',#
1 #
)#
implements#
A#
{#
#
}#
;",
            ['single_item_single_line' => true],
        ];

        yield [
            '<?php $a = new class() #
{};',
            '<?php $a = new class()#
{};',
        ];

        yield 'space_before_parenthesis 1' => [
            '<?php $z = new class () {};',
            '<?php $z = new class()  {};',
            ['space_before_parenthesis' => true],
        ];

        yield 'space_before_parenthesis 2' => [
            '<?php $z = new class () {};',
            '<?php $z = new class   ()  {};',
            ['space_before_parenthesis' => true],
        ];

        yield 'space_before_parenthesis and inline_constructor_arguments' => [
            '<?php $z = new class ( static::foo($this->bar())  ,baz() ) {};',
            '<?php $z = new class   ( static::foo($this->bar())  ,baz() )  {};',
            ['space_before_parenthesis' => true, 'inline_constructor_arguments' => false],
        ];

        yield 'single attribute on separate line' => [
            <<<'EOF'
                <?php
                $a = new
                #[FOO]
                class() {};
                EOF,
        ];

        yield 'multiple attributes on separate line' => [
            <<<'EOF'
                <?php
                $a = new
                #[FOO]
                #[\Ns\Bar]
                class() {};
                EOF,
        ];

        yield 'single line phpdoc on separate line' => [
            <<<'EOF'
                <?php
                $a = new
                /** @property string $x */
                class() {};
                EOF,
        ];

        yield 'multi line phpdoc on separate line' => [
            <<<'EOF'
                <?php
                $a = new
                /**
                 @property string $x
                 */
                class() {};
                EOF,
        ];

        yield 'phpdoc and single attribute on separate line' => [
            <<<'EOF'
                <?php
                $a = new
                /**
                 @property string $x
                 */
                #[FOO]
                class() {};
                EOF,
        ];

        yield 'phpdoc and multiple attributes on separate line' => [
            <<<'EOF'
                <?php
                $a = new
                /** @property string $x */
                #[FOO] #[\Ns\Bar]
                class() {};
                EOF,
        ];

        yield from self::provideClassyCases('class');

        yield from self::provideClassyExtendingCases('class');

        yield from self::provideClassyImplementsCases();

        yield [
            "<?php class configA implements B, C\n{}",
            "<?php class configA implements\nB, C{}",
            ['single_line' => true],
        ];

        yield [
            "<?php class configA1 extends B\n{}",
            "<?php class configA1\n extends\nB{}",
            ['single_line' => true],
        ];

        yield [
            "<?php class configA1a extends B\n{}",
            "<?php class configA1a\n extends\nB{}",
            ['single_line' => false, 'single_item_single_line' => true],
        ];

        yield [
            "<?php class configA2 extends D implements B, C\n{}",
            "<?php class configA2 extends D implements\nB,\nC{}",
            ['single_line' => true],
        ];

        yield [
            "<?php class configA3 extends D implements B, C\n{}",
            "<?php class configA3\n extends\nD\n\t implements\nB,\nC{}",
            ['single_line' => true],
        ];

        yield [
            "<?php class configA4 extends D implements B, #\nC\n{}",
            "<?php class configA4\n extends\nD\n\t implements\nB,#\nC{}",
            ['single_line' => true],
        ];

        yield [
            "<?php class configA5 implements A\n{}",
            "<?php class configA5 implements\nA{}",
            ['single_line' => false, 'single_item_single_line' => true],
        ];

        yield [
            "<?php interface TestWithMultiExtendsMultiLine extends\n    A,\nAb,\n    C,\n    D\n{}",
            "<?php interface TestWithMultiExtendsMultiLine extends A,\nAb,C,D\n{}",
            [
                'single_line' => false,
                'single_item_single_line' => false,
                'multi_line_extends_each_single_line' => true,
            ],
        ];

        yield from self::provideClassyCases('interface');

        yield from self::provideClassyExtendingCases('interface');

        yield [
            '<?php
interface Test extends
  /*a*/    /*b*/TestInterface1   , \A\B\C  ,  /* test */
    TestInterface2   ,   // test
    '.'

// Note: PSR does not have a rule for multiple extends
TestInterface3, /**/     TestInterface4   ,
      TestInterface5    ,     '.'
        /**/TestInterface65
{}
            ',
            '<?php
interface Test
extends
  /*a*/    /*b*/TestInterface1   , \A\B\C  ,  /* test */
    TestInterface2   ,   // test
    '.'

// Note: PSR does not have a rule for multiple extends
TestInterface3, /**/     TestInterface4   ,
      TestInterface5    ,     '.'
        /**/TestInterface65    {}
            ',
        ];

        yield from self::provideClassyCases('trait');

        yield [
            '<?php
$a = new class implements
    \RFb,
    \Fcc,
    \GFddZz
{
};',
            '<?php
$a = new class implements
    \RFb,
    \Fcc, \GFddZz
{
};',
        ];

        yield [
            '<?php
$a = new class implements
    \RFb,
    \Fcc,
    \GFddZz
{
}?>',
            '<?php
$a = new class implements
    \RFb,
    \Fcc, \GFddZz
{
}?>',
        ];

        yield [
            '<?php new class(1, 2, 3, ) {};',
            '<?php new class(1, 2, 3,) {};',
        ];

        yield [
            '<?php new class(1, 2, 3, ) {};',
            '<?php new class(
                    1,
                    2,
                    3,
                ) {};',
        ];
    }

    /**
     * @param array<string, mixed> $expected
     *
     * @dataProvider provideClassyDefinitionInfoCases
     */
    public function testClassyDefinitionInfo(string $source, array $expected): void
    {
        Tokens::clearCache();
        $tokens = Tokens::fromCode($source);

        $method = new \ReflectionMethod($this->fixer, 'getClassyDefinitionInfo');
        $method->setAccessible(true);

        $result = $method->invoke($this->fixer, $tokens, $expected['classy']);

        ksort($expected);
        ksort($result);

        self::assertSame($expected, $result);
    }

    public static function provideClassyDefinitionInfoCases(): iterable
    {
        yield [
            '<?php class A{}',
            [
                'start' => 1,
                'classy' => 1,
                'open' => 4,
                'extends' => false,
                'implements' => false,
                'anonymousClass' => false,
                'final' => false,
                'abstract' => false,
                'readonly' => false,
            ],
        ];

        yield [
            '<?php final class A{}',
            [
                'start' => 1,
                'classy' => 3,
                'open' => 6,
                'extends' => false,
                'implements' => false,
                'anonymousClass' => false,
                'final' => 1,
                'abstract' => false,
                'readonly' => false,
            ],
        ];

        yield [
            '<?php abstract /**/ class A{}',
            [
                'start' => 1,
                'classy' => 5,
                'open' => 8,
                'extends' => false,
                'implements' => false,
                'anonymousClass' => false,
                'final' => false,
                'abstract' => 1,
                'readonly' => false,
            ],
        ];

        yield [
            '<?php class A extends B {}',
            [
                'start' => 1,
                'classy' => 1,
                'open' => 9,
                'extends' => [
                    'start' => 5,
                    'numberOfExtends' => 1,
                    'multiLine' => false,
                ],
                'implements' => false,
                'anonymousClass' => false,
                'final' => false,
                'abstract' => false,
                'readonly' => false,
            ],
        ];

        yield [
            '<?php interface A extends B,C,D {}',
            [
                'start' => 1,
                'classy' => 1,
                'open' => 13,
                'extends' => [
                    'start' => 5,
                    'numberOfExtends' => 3,
                    'multiLine' => false,
                ],
                'implements' => false,
                'anonymousClass' => false,
                'final' => false,
                'abstract' => false,
                'readonly' => false,
            ],
        ];
    }

    /**
     * @param array<string, mixed> $expected
     *
     * @dataProvider provideClassyInheritanceInfoCases
     */
    public function testClassyInheritanceInfo(string $source, string $label, array $expected): void
    {
        $this->doTestClassyInheritanceInfo($source, $label, $expected);
    }

    public static function provideClassyInheritanceInfoCases(): iterable
    {
        yield '1' => [
            '<?php
class X11 implements    Z   , T,R
{
}',
            'numberOfImplements',
            ['start' => 5, 'numberOfImplements' => 3, 'multiLine' => false],
        ];

        yield '2' => [
            '<?php
class X10 implements    Z   , T,R    //
{
}',
            'numberOfImplements',
            ['start' => 5, 'numberOfImplements' => 3, 'multiLine' => false],
        ];

        yield '3' => [
            '<?php class A implements B {}',
            'numberOfImplements',
            ['start' => 5, 'numberOfImplements' => 1, 'multiLine' => false],
        ];

        yield '4' => [
            "<?php class A implements B,\n I{}",
            'numberOfImplements',
            ['start' => 5, 'numberOfImplements' => 2, 'multiLine' => true],
        ];

        yield '5' => [
            "<?php class A implements Z\\C\\B,C,D  {\n\n\n}",
            'numberOfImplements',
            ['start' => 5, 'numberOfImplements' => 3, 'multiLine' => false],
        ];

        yield [
            '<?php
namespace A {
    interface X {}
}

namespace {
    class B{}

    class A extends //
        B     implements /*  */ \A\C, Z{
        public function test()
        {
            echo 1;
        }
    }

    $a = new A();
    $a->test();
}',
            'numberOfImplements',
            ['start' => 36, 'numberOfImplements' => 2, 'multiLine' => false],
        ];

        yield [
            "<?php \$a = new    class(3)     extends\nSomeClass\timplements    SomeInterface, D {};",
            'numberOfExtends',
            ['start' => 12, 'numberOfExtends' => 1, 'multiLine' => true],
        ];

        yield [
            "<?php \$a = new class(4) extends\nSomeClass\timplements SomeInterface, D\n\n{};",
            'numberOfImplements',
            ['start' => 16, 'numberOfImplements' => 2, 'multiLine' => false],
        ];

        yield [
            "<?php \$a = new class(5) extends SomeClass\nimplements    SomeInterface, D {};",
            'numberOfExtends',
            ['start' => 12, 'numberOfExtends' => 1, 'multiLine' => true],
        ];
    }

    /**
     * @param array<string, mixed> $expected
     *
     * @dataProvider provideClassyInheritanceInfoPre80Cases
     *
     * @requires PHP <8.0
     */
    public function testClassyInheritanceInfoPre80(string $source, string $label, array $expected): void
    {
        $this->doTestClassyInheritanceInfo($source, $label, $expected);
    }

    public static function provideClassyInheritanceInfoPre80Cases(): iterable
    {
        yield [
            '<?php
namespace A {
    interface X {}
}

namespace {
    class B{}

    class A extends //
        B     implements /*  */ \A
        \C, Z{
        public function test()
        {
            echo 1;
        }
    }

    $a = new A();
    $a->test();
}',
            'numberOfImplements',
            ['start' => 36, 'numberOfImplements' => 2, 'multiLine' => true],
        ];
    }

    /**
     * @dataProvider provideWithWhitespacesConfigCases
     */
    public function testWithWhitespacesConfig(string $expected, ?string $input = null): void
    {
        $this->fixer->setWhitespacesConfig(new WhitespacesFixerConfig("\t", "\r\n"));
        $this->doTest($expected, $input);
    }

    /**
     * @return iterable<array{string, string}>
     */
    public static function provideWithWhitespacesConfigCases(): iterable
    {
        yield [
            "<?php\r\nclass Aaa implements\r\n\tBbb,\r\n\tCcc,\r\n\tDdd\r\n\t{\r\n\t}",
            "<?php\r\nclass Aaa implements\r\n\tBbb, Ccc,\r\n\tDdd\r\n\t{\r\n\t}",
        ];
    }

    /**
     * @dataProvider provideFix80Cases
     *
     * @requires PHP 8.0
     */
    public function testFix80(string $expected, ?string $input = null): void
    {
        $this->doTest($expected, $input);
    }

    /**
     * @return iterable<string, array{string, string}>
     */
    public static function provideFix80Cases(): iterable
    {
        yield 'anonymous class, single attribute' => [
            '<?php $a = new #[FOO] class(2) {};',
            '<?php $a = new    #[FOO]   class(2){};',
        ];

        yield 'anonymous class, multiple attributes' => [
            '<?php $a = new #[FOO] #[BAR] class {};',
            '<?php $a = new    #[FOO]    #[BAR]  class  {};',
        ];
    }

    /**
     * @dataProvider provideFix81Cases
     *
     * @requires PHP 8.1
     */
    public function testFix81(string $expected, ?string $input = null): void
    {
        $this->doTest($expected, $input);
    }

    /**
     * @return iterable<array{string, string}>
     */
    public static function provideFix81Cases(): iterable
    {
        yield [
            "<?php enum SomeEnum implements SomeInterface, D\n{};",
            "<?php enum SomeEnum \timplements    SomeInterface, D {};",
        ];

        yield [
            "<?php enum SomeEnum : int\n{}",
            '<?php enum   SomeEnum  :  int   {}',
        ];

        yield [
            "<?php enum SomeEnum\n{}",
            "<?php enum\tSomeEnum{}",
        ];
    }

    /**
     * @dataProvider provideFix82Cases
     *
     * @requires PHP 8.2
     */
    public function testFix82(string $expected, string $input): void
    {
        $this->doTest($expected, $input);
    }

    /**
     * @return iterable<string, array{string, string}>
     */
    public static function provideFix82Cases(): iterable
    {
        yield 'final readonly works' => [
            '<?php final readonly class a
{}',
            '<?php final           readonly      class a
{}',
        ];

        yield 'final - readonly modifiers get sorted' => [
            '<?php final readonly class a
{}',
            '<?php readonly final class a
{}',
        ];

        yield 'abstract - readonly modifiers get sorted' => [
            '<?php abstract readonly class a
{}',
            '<?php readonly abstract class a
{}',
        ];
    }

    /**
     * @dataProvider provideFix83Cases
     *
     * @requires PHP 8.3
     */
    public function testFix83(string $expected, ?string $input = null): void
    {
        $this->doTest($expected, $input);
    }

    /**
     * @return iterable<string, array{string, string}>
     */
    public static function provideFix83Cases(): iterable
    {
        yield 'anonymous class, readonly, missing spacing' => [
            '<?php $a = new readonly class {};',
            '<?php $a = new readonly class{};',
        ];

        yield 'anonymous class, readonly, to much spacing' => [
            '<?php $a = new readonly class {};',
            '<?php $a = new      readonly   class  {};',
        ];

        yield 'anonymous class, single attribute' => [
            '<?php $a = new #[BAR] readonly class {};',
            '<?php $a = new        #[BAR]   readonly class{};',
        ];

        yield 'anonymous class, multiple attributes' => [
            '<?php $a = new #[FOO] #[BAR] readonly class {};',
            '<?php $a = new    #[FOO]    #[BAR]   readonly class   {};',
        ];
    }

    /**
     * @param array<string, mixed> $expected
     */
    private function doTestClassyInheritanceInfo(string $source, string $label, array $expected): void
    {
        Tokens::clearCache();
        $tokens = Tokens::fromCode($source);
        self::assertTrue($tokens[$expected['start']]->isGivenKind([T_IMPLEMENTS, T_EXTENDS]), \sprintf('Token must be "implements" or "extends", got "%s".', $tokens[$expected['start']]->getContent()));
        $method = new \ReflectionMethod($this->fixer, 'getClassyInheritanceInfo');
        $method->setAccessible(true);

        $result = $method->invoke($this->fixer, $tokens, $expected['start'], $label);

        self::assertSame($expected, $result);
    }

    /**
     * @param array<string, mixed> $expected
     */
    private static function assertConfigurationSame(array $expected, ClassDefinitionFixer $fixer): void
    {
        $reflectionProperty = new \ReflectionProperty($fixer, 'configuration');
        $reflectionProperty->setAccessible(true);

        self::assertSame($expected, $reflectionProperty->getValue($fixer));
    }

    /**
     * @return iterable<array{string, string}>
     */
    private static function provideClassyCases(string $classy): iterable
    {
        return [
            [
                \sprintf("<?php %s A\n{}", $classy),
                \sprintf('<?php %s    A   {}', $classy),
            ],
            [
                \sprintf("<?php %s B\n{}", $classy),
                \sprintf('<?php %s    B{}', $classy),
            ],
            [
                \sprintf("<?php %s C\n{}", $classy),
                \sprintf("<?php %s\n\tC{}", $classy),
            ],
            [
                \sprintf("<?php %s D //\n{}", $classy),
                \sprintf("<?php %s    D//\n{}", $classy),
            ],
            [
                \sprintf("<?php %s /**/ E //\n{}", $classy),
                \sprintf("<?php %s/**/E//\n{}", $classy),
            ],
            [
                \sprintf(
                    "<?php
%s A
{}

%s /**/ B //
/**/\n{}",
                    $classy,
                    $classy
                ),
                \sprintf(
                    '<?php
%s
   A
{}

%s/**/B //
/**/ {}',
                    $classy,
                    $classy
                ),
            ],
            [
                \sprintf(
                    '<?php
namespace {
    %s IndentedNameSpacedClass
{
    }
}',
                    $classy
                ),
                \sprintf(
                    '<?php
namespace {
    %s IndentedNameSpacedClass    {
    }
}',
                    $classy
                ),
            ],
        ];
    }

    /**
     * @return iterable<array{string, string}>
     */
    private static function provideClassyExtendingCases(string $classy): iterable
    {
        return [
            [
                \sprintf("<?php %s AE0 extends B\n{}", $classy),
                \sprintf('<?php %s    AE0    extends B    {}', $classy),
            ],
            [
                \sprintf("<?php %s /**/ AE1 /**/ extends /**/ B /**/\n{}", $classy),
                \sprintf('<?php %s/**/AE1/**/extends/**/B/**/{}', $classy),
            ],
            [
                \sprintf("<?php %s /*%s*/ AE2 extends\nB\n{}", $classy, $classy),
                \sprintf("<?php %s /*%s*/ AE2 extends\nB{}", $classy, $classy),
            ],
            [
                \sprintf('<?php
%s Test124 extends
\Exception
{}', $classy),
                \sprintf('<?php
%s
Test124

extends
\Exception {}', $classy),
            ],
        ];
    }

    /**
     * @return iterable<int|string, array{string, string}>
     */
    private static function provideClassyImplementsCases(): iterable
    {
        return [
            [
                '<?php class LotOfImplements implements A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q
{}',
                '<?php class LotOfImplements implements A,B,C,D,E,F,G,H,I,J,K,L,M,N,O,P,Q{}',
            ],
            [
                "<?php class E implements B\n{}",
                "<?php class    E   \nimplements     B       \t{}",
            ],
            [
                "<?php abstract class F extends B implements C\n{}",
                '<?php abstract    class    F    extends     B    implements C {}',
            ],
            'multiline abstract extends implements with comments' => [
                "<?php abstract class G extends       //
B /*  */ implements C\n{}",
                '<?php abstract    class     G     extends       //
B/*  */implements C{}',
            ],
            'final extends implement' => [
                "<?php final class G extends       //
B /*  */ implements C\n{}",
                '<?php final    class     G     extends       //
B/*  */implements C{}',
            ],
            'final' => [
                '<?php final class G        //
/*  */
{}',
                '<?php final    class     G        //
/*  */{}',
            ],
            [
                '<?php
class Aaa IMPLEMENTS
    \RFb,
    \Fcc,
    \GFddZz
{
}',
                '<?php
class Aaa IMPLEMENTS
    \RFb,
    \Fcc, \GFddZz
{
}',
            ],
            [
                '<?php
class        //
X            //
extends      //
Y            //
implements   //
Z,       //
U            //
{}           //',
                '<?php
class        //
X            //
extends      //
Y            //
implements   //
Z    ,       //
U            //
{}           //',
            ],
            [
                '<?php
class Aaa implements
    PhpCsFixer\Tests\Fixer,
    \RFb,
    \Fcc1,
    \GFdd
{
}',
                '<?php
class Aaa implements
    PhpCsFixer\Tests\Fixer,\RFb,
    \Fcc1, \GFdd
{
}',
            ],
            [
                '<?php
class /**/ Test123 EXtends /**/ \RuntimeException implements
TestZ
{
}',
                '<?php
class/**/Test123
EXtends  /**/        \RuntimeException    implements
TestZ
{
}',
            ],
            [
                '<?php
    class Aaa implements Ebb, \Ccc
    {
    }',
                '<?php
    class Aaa    implements    Ebb,    \Ccc
    {
    }',
            ],
            [
                '<?php
class X2 IMPLEMENTS
Z, //
U,
    D
{
}',
                '<?php
class X2 IMPLEMENTS
Z    , //
U, D
{
}',
            ],
            [
                '<?php
                    class VeryLongClassNameWithLotsOfLetters extends AnotherVeryLongClassName implements
    VeryLongInterfaceNameThatIDontWantOnTheSameLine
{
}',
                '<?php
                    class      VeryLongClassNameWithLotsOfLetters    extends AnotherVeryLongClassName implements
    VeryLongInterfaceNameThatIDontWantOnTheSameLine
{
}',
            ],
            [
                '<?php
class /**/ Test125 //aaa
extends  /*

*/
//
\Exception        //
{}',
                '<?php
class/**/Test125 //aaa
extends  /*

*/
//
\Exception        //
{}',
            ],
            [
                '<?php
class Test extends TestInterface8 implements      /*a*/      /*b*/
    TestInterface1,  /* test */
    TestInterface2,   // test
    '.'

// test
TestInterface3, /**/
    TestInterface4,
      TestInterface5,    '.'
        /**/TestInterface6c
{
}',
                '<?php
class Test
extends
    TestInterface8
  implements      /*a*/      /*b*/TestInterface1   ,  /* test */
    TestInterface2   ,   // test
    '.'

// test
TestInterface3, /**/     TestInterface4   ,
      TestInterface5    ,    '.'
        /**/TestInterface6c
{
}',
            ],
        ];
    }
}