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Enhancement: Implement UnwrapStrtolower mutator
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Original file line number | Diff line number | Diff line change |
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<?php | ||
/** | ||
* This code is licensed under the BSD 3-Clause License. | ||
* | ||
* Copyright (c) 2017-2018, Maks Rafalko | ||
* All rights reserved. | ||
* | ||
* Redistribution and use in source and binary forms, with or without | ||
* modification, are permitted provided that the following conditions are met: | ||
* | ||
* * Redistributions of source code must retain the above copyright notice, this | ||
* list of conditions and the following disclaimer. | ||
* | ||
* * Redistributions in binary form must reproduce the above copyright notice, | ||
* this list of conditions and the following disclaimer in the documentation | ||
* and/or other materials provided with the distribution. | ||
* | ||
* * Neither the name of the copyright holder nor the names of its | ||
* contributors may be used to endorse or promote products derived from | ||
* this software without specific prior written permission. | ||
* | ||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" | ||
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | ||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE | ||
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE | ||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | ||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR | ||
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER | ||
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, | ||
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | ||
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | ||
*/ | ||
|
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declare(strict_types=1); | ||
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namespace Infection\Mutator\Unwrap; | ||
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/** | ||
* @internal | ||
*/ | ||
final class UnwrapStrtolower extends AbstractUnwrapMutator | ||
{ | ||
protected function getFunctionName(): string | ||
{ | ||
return 'strtolower'; | ||
} | ||
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protected function getParameterIndex(): int | ||
{ | ||
return 0; | ||
} | ||
} |
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Original file line number | Diff line number | Diff line change |
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@@ -0,0 +1,181 @@ | ||
<?php | ||
/** | ||
* This code is licensed under the BSD 3-Clause License. | ||
* | ||
* Copyright (c) 2017-2018, Maks Rafalko | ||
* All rights reserved. | ||
* | ||
* Redistribution and use in source and binary forms, with or without | ||
* modification, are permitted provided that the following conditions are met: | ||
* | ||
* * Redistributions of source code must retain the above copyright notice, this | ||
* list of conditions and the following disclaimer. | ||
* | ||
* * Redistributions in binary form must reproduce the above copyright notice, | ||
* this list of conditions and the following disclaimer in the documentation | ||
* and/or other materials provided with the distribution. | ||
* | ||
* * Neither the name of the copyright holder nor the names of its | ||
* contributors may be used to endorse or promote products derived from | ||
* this software without specific prior written permission. | ||
* | ||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" | ||
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | ||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE | ||
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE | ||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | ||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR | ||
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER | ||
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, | ||
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | ||
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | ||
*/ | ||
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declare(strict_types=1); | ||
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namespace Infection\Tests\Mutator\Unwrap; | ||
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use Infection\Tests\Mutator\AbstractMutatorTestCase; | ||
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/** | ||
* @internal | ||
*/ | ||
final class UnwrapStrtolowersTest extends AbstractMutatorTestCase | ||
{ | ||
/** | ||
* @dataProvider provideMutationCases | ||
*/ | ||
public function test_mutator($input, $expected = null): void | ||
{ | ||
$this->doTest($input, $expected); | ||
} | ||
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public function provideMutationCases(): \Generator | ||
{ | ||
yield 'It mutates correctly when provided with a string' => [ | ||
<<<'PHP' | ||
<?php | ||
$a = strtolower('Good Afternoon!'); | ||
PHP | ||
, | ||
<<<'PHP' | ||
<?php | ||
$a = 'Good Afternoon!'; | ||
PHP | ||
]; | ||
|
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yield 'It mutates correctly when provided with a constant' => [ | ||
<<<'PHP' | ||
<?php | ||
$a = strtolower(\Class_With_Const::Const); | ||
PHP | ||
, | ||
<<<'PHP' | ||
<?php | ||
$a = \Class_With_Const::Const; | ||
PHP | ||
]; | ||
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yield 'It mutates correctly when a backslash is in front of strtolower' => [ | ||
<<<'PHP' | ||
<?php | ||
$a = \strtolower('Good Afternoon!'); | ||
PHP | ||
, | ||
<<<'PHP' | ||
<?php | ||
$a = 'Good Afternoon!'; | ||
PHP | ||
]; | ||
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yield 'It mutates correctly within if statements' => [ | ||
<<<'PHP' | ||
<?php | ||
$a = 'Good Afternoon!'; | ||
if (strtolower($a) === $a) { | ||
return true; | ||
} | ||
PHP | ||
, | ||
<<<'PHP' | ||
<?php | ||
$a = 'Good Afternoon!'; | ||
if ($a === $a) { | ||
return true; | ||
} | ||
PHP | ||
]; | ||
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yield 'It mutates correctly when strtolower is wrongly capitalized' => [ | ||
<<<'PHP' | ||
<?php | ||
$a = sTrToLoWeR('Good Afternoon!'); | ||
PHP | ||
, | ||
<<<'PHP' | ||
<?php | ||
$a = 'Good Afternoon!'; | ||
PHP | ||
]; | ||
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yield 'It mutates correctly when strtolower uses another function as input' => [ | ||
<<<'PHP' | ||
<?php | ||
$a = strtolower($foo->bar()); | ||
PHP | ||
, | ||
<<<'PHP' | ||
<?php | ||
$a = $foo->bar(); | ||
PHP | ||
]; | ||
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yield 'It mutates correctly when provided with a more complex situation' => [ | ||
<<<'PHP' | ||
<?php | ||
$a = strtolower(array_reduce($words, function (string $carry, string $item) { | ||
return $carry . substr($item, 0, 1); | ||
})); | ||
PHP | ||
, | ||
<<<'PHP' | ||
<?php | ||
$a = array_reduce($words, function (string $carry, string $item) { | ||
return $carry . substr($item, 0, 1); | ||
}); | ||
PHP | ||
]; | ||
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yield 'It does not mutate other str* calls' => [ | ||
<<<'PHP' | ||
<?php | ||
$a = strtoupper('Good Afternoon!'); | ||
PHP | ||
]; | ||
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yield 'It does not mutate functions named strtolower' => [ | ||
<<<'PHP' | ||
<?php | ||
function strtolower($string) | ||
{ | ||
} | ||
PHP | ||
]; | ||
} | ||
} |