68 lines
2.3 KiB
PHP
68 lines
2.3 KiB
PHP
<?php declare(strict_types=1);
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namespace PhpParser\Internal;
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use PHPUnit\Framework\TestCase;
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class DifferTest extends TestCase
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{
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private function formatDiffString(array $diff) {
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$diffStr = '';
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foreach ($diff as $diffElem) {
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switch ($diffElem->type) {
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case DiffElem::TYPE_KEEP:
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$diffStr .= $diffElem->old;
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break;
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case DiffElem::TYPE_REMOVE:
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$diffStr .= '-' . $diffElem->old;
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break;
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case DiffElem::TYPE_ADD:
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$diffStr .= '+' . $diffElem->new;
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break;
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case DiffElem::TYPE_REPLACE:
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$diffStr .= '/' . $diffElem->old . $diffElem->new;
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break;
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default:
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assert(false);
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break;
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}
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}
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return $diffStr;
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}
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/** @dataProvider provideTestDiff */
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public function testDiff($oldStr, $newStr, $expectedDiffStr) {
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$differ = new Differ(function($a, $b) { return $a === $b; });
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$diff = $differ->diff(str_split($oldStr), str_split($newStr));
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$this->assertSame($expectedDiffStr, $this->formatDiffString($diff));
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}
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public function provideTestDiff() {
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return [
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['abc', 'abc', 'abc'],
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['abc', 'abcdef', 'abc+d+e+f'],
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['abcdef', 'abc', 'abc-d-e-f'],
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['abcdef', 'abcxyzdef', 'abc+x+y+zdef'],
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['axyzb', 'ab', 'a-x-y-zb'],
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['abcdef', 'abxyef', 'ab-c-d+x+yef'],
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['abcdef', 'cdefab', '-a-bcdef+a+b'],
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];
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}
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/** @dataProvider provideTestDiffWithReplacements */
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public function testDiffWithReplacements($oldStr, $newStr, $expectedDiffStr) {
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$differ = new Differ(function($a, $b) { return $a === $b; });
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$diff = $differ->diffWithReplacements(str_split($oldStr), str_split($newStr));
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$this->assertSame($expectedDiffStr, $this->formatDiffString($diff));
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}
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public function provideTestDiffWithReplacements() {
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return [
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['abcde', 'axyze', 'a/bx/cy/dze'],
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['abcde', 'xbcdy', '/axbcd/ey'],
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['abcde', 'axye', 'a-b-c-d+x+ye'],
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['abcde', 'axyzue', 'a-b-c-d+x+y+z+ue'],
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];
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}
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}
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