PHP-CS-Fixer/tests/Fixer/ControlStructure/TrailingCommaInMultilineFixerTest.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\ControlStructure;

use PhpCsFixer\Fixer\ControlStructure\TrailingCommaInMultilineFixer;
use PhpCsFixer\Tests\Test\AbstractFixerTestCase;

/**
 * @author Sebastiaan Stok <s.stok@rollerscapes.net>
 * @author Kuba Werłos <werlos@gmail.com>
 *
 * @internal
 *
 * @covers \PhpCsFixer\Fixer\ControlStructure\TrailingCommaInMultilineFixer
 *
 * @extends AbstractFixerTestCase<\PhpCsFixer\Fixer\ControlStructure\TrailingCommaInMultilineFixer>
 *
 * @phpstan-import-type _AutogeneratedInputConfiguration from \PhpCsFixer\Fixer\ControlStructure\TrailingCommaInMultilineFixer
 */
final class TrailingCommaInMultilineFixerTest extends AbstractFixerTestCase
{
    /**
     * @param _AutogeneratedInputConfiguration $config
     *
     * @dataProvider provideFixCases
     */
    public function testFix(string $expected, ?string $input = null, array $config = []): void
    {
        $this->fixer->configure($config);

        $this->doTest($expected, $input);
    }

    public static function provideFixCases(): iterable
    {
        // long syntax tests
        yield ['<?php $x = array();'];

        yield ['<?php $x = array("foo");'];

        yield ['<?php $x = array("foo", );'];

        yield ["<?php \$x = array(\n'foo',\n);", "<?php \$x = array(\n'foo'\n);"];

        yield ["<?php \$x = array('foo',\n);"];

        yield ["<?php \$x = array('foo',\n);", "<?php \$x = array('foo'\n);"];

        yield ["<?php \$x = array('foo', /* boo */\n);", "<?php \$x = array('foo' /* boo */\n);"];

        yield ["<?php \$x = array('foo',\n/* boo */\n);", "<?php \$x = array('foo'\n/* boo */\n);"];

        yield ["<?php \$x = array(\narray('foo',\n),\n);", "<?php \$x = array(\narray('foo'\n)\n);"];

        yield ["<?php \$x = array(\narray('foo'),\n);", "<?php \$x = array(\narray('foo')\n);"];

        yield ["<?php \$x = array(\n /* He */ \n);"];

        yield [
            "<?php \$x = array('a', 'b', 'c',\n  'd', 'q', 'z');",
        ];

        yield [
            "<?php \$x = array('a', 'b', 'c',\n'd', 'q', 'z');",
        ];

        yield [
            "<?php \$x = array('a', 'b', 'c',\n'd', 'q', 'z' );",
        ];

        yield [
            "<?php \$x = array('a', 'b', 'c',\n'd', 'q', 'z'\t);",
        ];

        yield ["<?php \$x = array(\n<<<EOT\noet\nEOT\n);"];

        yield ["<?php \$x = array(\n<<<'EOT'\noet\nEOT\n);"];

        yield [
            '<?php
    $foo = array(
        array(
        ),
    );',
        ];

        yield [
            '<?php
    $a = array(
        1 => array(
            2 => 3,
        ),
    );',
            '<?php
    $a = array(
        1 => array(
            2 => 3
        )
    );',
        ];

        yield [
            "<?php
    \$x = array(
        'foo',
        'bar',
        array(
            'foo',
            'bar',
            array(
                'foo',
                'bar',
                array(
                    'foo',
                    ('bar' ? true : !false),
                    ('bar' ? array(true) : !(false)),
                    array(
                        'foo',
                        'bar',
                        array(
                            'foo',
                            ('bar'),
                        ),
                    ),
                ),
            ),
        ),
    );",
            "<?php
    \$x = array(
        'foo',
        'bar',
        array(
            'foo',
            'bar',
            array(
                'foo',
                'bar',
                array(
                    'foo',
                    ('bar' ? true : !false),
                    ('bar' ? array(true) : !(false)),
                    array(
                        'foo',
                        'bar',
                        array(
                            'foo',
                            ('bar'),
                        )
                    )
                )
            )
        )
    );",
        ];

        yield [
            '<?php

                $a = array("foo" => function ($b) {
                    return "bar".$b;
                });',
        ];

        yield [
            '<?php
    return array(
        "a" => 1,
        "b" => 2,
    );',
            '<?php
    return array(
        "a" => 1,
        "b" => 2
    );',
        ];

        yield [
            '<?php
    $test = array("foo", <<<TWIG
        foo
        bar
        baz
TWIG
        , $twig);',
        ];

        yield [
            '<?php
    $test = array("foo", <<<\'TWIG\'
        foo
        bar
        baz
TWIG
        , $twig);',
        ];

        // short syntax tests
        yield ['<?php $x = array([]);'];

        yield ['<?php $x = [[]];'];

        yield ['<?php $x = ["foo",];'];

        yield ['<?php $x = bar(["foo",]);'];

        yield ["<?php \$x = bar(['foo',\n]);", "<?php \$x = bar(['foo'\n]);"];

        yield ["<?php \$x = ['foo', \n];"];

        yield ['<?php $x = array([],);'];

        yield ['<?php $x = [[],];'];

        yield ['<?php $x = [$y,];'];

        yield ["<?php \$x = [\n /* He */ \n];"];

        yield [
            '<?php
    $foo = [
        [
        ],
    ];',
        ];

        yield [
            '<?php

                $a = ["foo" => function ($b) {
                    return "bar".$b;
                }];',
        ];

        yield [
            '<?php
    return [
        "a" => 1,
        "b" => 2,
    ];',
            '<?php
    return [
        "a" => 1,
        "b" => 2
    ];',
        ];

        yield [
            '<?php
    $test = ["foo", <<<TWIG
        foo
        bar
        baz
TWIG
        , $twig];',
        ];

        yield [
            '<?php
    $test = ["foo", <<<\'TWIG\'
        foo
        bar
        baz
TWIG
        , $twig];',
        ];

        // no array tests
        yield [
            "<?php
    throw new BadMethodCallException(
        sprintf(
            'Method \"%s\" not implemented',
            __METHOD__
        )
    );",
        ];

        yield [
            "<?php
    throw new BadMethodCallException(sprintf(
        'Method \"%s\" not implemented',
        __METHOD__
    ));",
        ];

        yield [
            "<?php

    namespace FOS\\RestBundle\\Controller;

    class ExceptionController extends ContainerAware
    {
        public function showAction(Request \$request, \$exception, DebugLoggerInterface \$logger = null, \$format = 'html')
        {
            if (!\$exception instanceof DebugFlattenException && !\$exception instanceof HttpFlattenException) {
                throw new \\InvalidArgumentException(sprintf(
                    'ExceptionController::showAction can only accept some exceptions (%s, %s), \"%s\" given',
                    'Symfony\\Component\\HttpKernel\\Exception\\FlattenException',
                    'Symfony\\Component\\Debug\\Exception\\FlattenException',
                    get_class(\$exception)
                ));
            }
        }
    }",
        ];

        yield [
            '<?php
    function foo(array $a)
    {
        bar(
            baz(
                1
            )
        );
    }',
        ];

        yield [
            '<?php
    $var = array(
        "string",
        //comment
    );',
            '<?php
    $var = array(
        "string"
        //comment
    );',
        ];

        yield [
            '<?php
    $var = array(
        "string",
        /* foo */);',
            '<?php
    $var = array(
        "string"
        /* foo */);',
        ];

        yield [
            '<?php
    $var = [
        "string",
        /* foo */];',
            '<?php
    $var = [
        "string"
        /* foo */];',
        ];

        yield [
            '<?php
function a()
{
    yield array(
        "a" => 1,
        "b" => 2,
    );
}',
            '<?php
function a()
{
    yield array(
        "a" => 1,
        "b" => 2
    );
}',
        ];

        yield [
            '<?php
function a()
{
    yield [
        "a" => 1,
        "b" => 2,
    ];
}',
            '<?php
function a()
{
    yield [
        "a" => 1,
        "b" => 2
    ];
}',
        ];

        yield ['<?php
while(
(
(
$a
)
)
) {}',
        ];

        yield [
            "<?php foo('a', 'b', 'c', 'd', 'q', 'z');",
            null,
            ['elements' => [TrailingCommaInMultilineFixer::ELEMENTS_ARGUMENTS]],
        ];

        yield [
            "<?php function foo(\$a,\n\$b\n) {};",
            null,
            ['elements' => [TrailingCommaInMultilineFixer::ELEMENTS_ARGUMENTS]],
        ];

        yield [
            '<?php foo(1, 2, [
                    ARRAY_ELEMENT_1,
                    ARRAY_ELEMENT_2
                    ], 3, 4);',
            null,
            ['elements' => [TrailingCommaInMultilineFixer::ELEMENTS_ARGUMENTS]],
        ];

        yield [
            "<?php \$var = array('a', 'b',\n  'c', 'd');",
            null,
            ['elements' => [TrailingCommaInMultilineFixer::ELEMENTS_ARGUMENTS]],
        ];

        yield [
            "<?php \$var = list(\$a, \$b,\n \$c, \$d) = [1, 2, 3, 4];",
            null,
            ['elements' => [TrailingCommaInMultilineFixer::ELEMENTS_ARGUMENTS]],
        ];

        yield [
            "<?php if (true || \n false) {}",
            null,
            ['elements' => [TrailingCommaInMultilineFixer::ELEMENTS_ARGUMENTS]],
        ];

        yield [
            "<?php \$var = foo('a', 'b', 'c',\n  'd', 'q', 'z');",
            null, // do not fix if not configured
            ['elements' => [TrailingCommaInMultilineFixer::ELEMENTS_ARRAYS]],
        ];

        yield [
            "<?php \$var = foo('a', 'b', 'c',\n  'd', 'q', 'z');",
            null,
            ['elements' => [TrailingCommaInMultilineFixer::ELEMENTS_ARGUMENTS]],
        ];

        yield [
            "<?php \$var = foo('a', 'b', 'c',\n  'd', 'q', 'z',\n);",
            "<?php \$var = foo('a', 'b', 'c',\n  'd', 'q', 'z'\n);",
            ['elements' => [TrailingCommaInMultilineFixer::ELEMENTS_ARGUMENTS]],
        ];

        yield [
            "<?php \$var = \$foonction('a', 'b', 'c',\n  'd', 'q', 'z');",
            null,
            ['elements' => [TrailingCommaInMultilineFixer::ELEMENTS_ARGUMENTS]],
        ];

        yield [
            "<?php \$var = \$fMap[100]('a', 'b', 'c',\n  'd', 'q', 'z');",
            null,
            ['elements' => [TrailingCommaInMultilineFixer::ELEMENTS_ARGUMENTS]],
        ];

        yield [
            "<?php \$var = new Foo('a', 'b', 'c',\n  'd', 'q', 'z',\n);",
            "<?php \$var = new Foo('a', 'b', 'c',\n  'd', 'q', 'z'\n);",
            ['elements' => [TrailingCommaInMultilineFixer::ELEMENTS_ARGUMENTS]],
        ];

        yield [
            "<?php \$var = new class('a', 'b', 'c',\n  'd', 'q', 'z',\n) extends Foo {};",
            "<?php \$var = new class('a', 'b', 'c',\n  'd', 'q', 'z'\n) extends Foo {};",
            ['elements' => [TrailingCommaInMultilineFixer::ELEMENTS_ARGUMENTS]],
        ];

        yield [
            '<?php
                    $obj->method(
                        1,
                        2,
                    );
                ',
            '<?php
                    $obj->method(
                        1,
                        2
                    );
                ',
            ['elements' => [TrailingCommaInMultilineFixer::ELEMENTS_ARGUMENTS]],
        ];

        yield 'function-like language constructs' => [
            '<?php
isset(
    $a,
    $b,
);
unset(
    $a,
    $b,
);
list(
    $a,
    $b,
) = $foo;
            ',
            '<?php
isset(
    $a,
    $b
);
unset(
    $a,
    $b
);
list(
    $a,
    $b
) = $foo;
            ',
            ['elements' => [TrailingCommaInMultilineFixer::ELEMENTS_ARGUMENTS]],
        ];

        yield [
            '<?php
                    array(
                        1,
                        2,
                    );
                    [
                        3,
                        4,
                    ];
                    foo(
                        5,
                        6,
                    );
                ',
            '<?php
                    array(
                        1,
                        2
                    );
                    [
                        3,
                        4
                    ];
                    foo(
                        5,
                        6
                    );
                ',
            ['elements' => [TrailingCommaInMultilineFixer::ELEMENTS_ARRAYS, TrailingCommaInMultilineFixer::ELEMENTS_ARGUMENTS]],
        ];

        yield [
            '<?php
while(
(
(
$a
)
)
) {}',
            null,
            ['elements' => [TrailingCommaInMultilineFixer::ELEMENTS_ARRAYS, TrailingCommaInMultilineFixer::ELEMENTS_ARGUMENTS]],
        ];

        yield [
            <<<'EXPECTED'
                <?php
                $a = [
                    <<<'EOD'
                        foo
                        EOD,
                ];
                EXPECTED,
            <<<'INPUT'
                <?php
                $a = [
                    <<<'EOD'
                        foo
                        EOD
                ];
                INPUT,
            ['after_heredoc' => true],
        ];

        yield [
            '<?php $a = new class() {function A() { return new static(
1,
2,
); }};',
            '<?php $a = new class() {function A() { return new static(
1,
2
); }};',
            ['elements' => [TrailingCommaInMultilineFixer::ELEMENTS_ARGUMENTS]],
        ];

        yield [
            '<?php
$a = [11,2,3];
[
    $c,
    $d,
] = $a;
',
            '<?php
$a = [11,2,3];
[
    $c,
    $d
] = $a;
',
            ['elements' => ['array_destructuring']],
        ];
    }

    /**
     * @requires PHP <8.0
     */
    public function testFixPre80(): void
    {
        $this->fixer->configure([
            'elements' => [TrailingCommaInMultilineFixer::ELEMENTS_ARRAYS, TrailingCommaInMultilineFixer::ELEMENTS_PARAMETERS],
        ]);

        // ELEMENTS_PARAMETERS got unconfigured, as not valid <8.0

        $this->doTest(
            "<?php function foo(\$a\n) { return [1,\n]; }",
            "<?php function foo(\$a\n) { return [1\n]; }",
        );
    }

    /**
     * @param _AutogeneratedInputConfiguration $config
     *
     * @dataProvider provideFix80Cases
     *
     * @requires PHP 8.0
     */
    public function testFix80(string $expected, ?string $input = null, array $config = []): void
    {
        $this->fixer->configure($config);
        $this->doTest($expected, $input);
    }

    public static function provideFix80Cases(): iterable
    {
        yield [
            '<?php function foo($x, $y) {}',
            null,
            ['elements' => [TrailingCommaInMultilineFixer::ELEMENTS_PARAMETERS]],
        ];

        yield [
            '<?php function foo(
                    $x,
                    $y
                ) {}',
            null, // do not fix if not configured
            ['elements' => [TrailingCommaInMultilineFixer::ELEMENTS_ARRAYS, TrailingCommaInMultilineFixer::ELEMENTS_ARGUMENTS]],
        ];

        yield [
            '<?php function foo(
                    $x,
                    $y,
                ) {}',
            '<?php function foo(
                    $x,
                    $y
                ) {}',
            ['elements' => [TrailingCommaInMultilineFixer::ELEMENTS_PARAMETERS]],
        ];

        yield [
            '<?php $x = function(
                    $x,
                    $y,
                ) {};',
            '<?php $x = function(
                    $x,
                    $y
                ) {};',
            ['elements' => [TrailingCommaInMultilineFixer::ELEMENTS_PARAMETERS]],
        ];

        yield [
            '<?php $x = fn(
                    $x,
                    $y,
                ) => $x + $y;',
            '<?php $x = fn(
                    $x,
                    $y
                ) => $x + $y;',
            ['elements' => [TrailingCommaInMultilineFixer::ELEMENTS_PARAMETERS]],
        ];

        yield 'match' => [
            '<?php
$m = match ($a) {
    200, 300 => null,
    400 => 1,
    500 => function() {return 2;},
    600 => static function() {return 4;},
    default => 3,
};

$z = match ($a) {
    1 => 0,
    2 => 1,
};

$b = match($c) {19 => 28, default => 333};
            ',
            '<?php
$m = match ($a) {
    200, 300 => null,
    400 => 1,
    500 => function() {return 2;},
    600 => static function() {return 4;},
    default => 3
};

$z = match ($a) {
    1 => 0,
    2 => 1
};

$b = match($c) {19 => 28, default => 333};
            ',
            ['elements' => ['match']],
        ];

        yield 'match with last comma in the same line as closing brace' => [
            '<?php
$x = match ($a) { 1 => 0,
                  2 => 1 };
            ',
            null,
            ['elements' => ['match']],
        ];

        yield 'match and parameters' => [
            '<?php function foo(
                $a,
            ) {
                return [
                    1,
                ];
            }',
            '<?php function foo(
                $a
            ) {
                return [
                    1
                ];
            }',
            ['elements' => [TrailingCommaInMultilineFixer::ELEMENTS_ARRAYS, TrailingCommaInMultilineFixer::ELEMENTS_PARAMETERS]],
        ];
    }
}