445 lines
12 KiB
PHP
445 lines
12 KiB
PHP
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<?php declare(strict_types=1);
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/*
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* This file is part of sebastian/diff.
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*
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* (c) Sebastian Bergmann <sebastian@phpunit.de>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace SebastianBergmann\Diff;
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use PHPUnit\Framework\TestCase;
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use SebastianBergmann\Diff\Output\UnifiedDiffOutputBuilder;
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/**
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* @covers SebastianBergmann\Diff\Differ
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* @covers SebastianBergmann\Diff\Output\UnifiedDiffOutputBuilder
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*
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* @uses SebastianBergmann\Diff\MemoryEfficientLongestCommonSubsequenceCalculator
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* @uses SebastianBergmann\Diff\TimeEfficientLongestCommonSubsequenceCalculator
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* @uses SebastianBergmann\Diff\Output\AbstractChunkOutputBuilder
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*/
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final class DifferTest extends TestCase
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{
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/**
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* @var Differ
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*/
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private $differ;
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protected function setUp(): void
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{
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$this->differ = new Differ;
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}
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/**
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* @param array $expected
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* @param array|string $from
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* @param array|string $to
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*
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* @dataProvider arrayProvider
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*/
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public function testArrayRepresentationOfDiffCanBeRenderedUsingTimeEfficientLcsImplementation(array $expected, $from, $to): void
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{
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$this->assertSame($expected, $this->differ->diffToArray($from, $to, new TimeEfficientLongestCommonSubsequenceCalculator));
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}
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/**
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* @param string $expected
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* @param string $from
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* @param string $to
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*
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* @dataProvider textProvider
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*/
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public function testTextRepresentationOfDiffCanBeRenderedUsingTimeEfficientLcsImplementation(string $expected, string $from, string $to): void
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{
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$this->assertSame($expected, $this->differ->diff($from, $to, new TimeEfficientLongestCommonSubsequenceCalculator));
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}
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/**
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* @param array $expected
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* @param array|string $from
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* @param array|string $to
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*
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* @dataProvider arrayProvider
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*/
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public function testArrayRepresentationOfDiffCanBeRenderedUsingMemoryEfficientLcsImplementation(array $expected, $from, $to): void
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{
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$this->assertSame($expected, $this->differ->diffToArray($from, $to, new MemoryEfficientLongestCommonSubsequenceCalculator));
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}
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/**
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* @param string $expected
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* @param string $from
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* @param string $to
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*
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* @dataProvider textProvider
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*/
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public function testTextRepresentationOfDiffCanBeRenderedUsingMemoryEfficientLcsImplementation(string $expected, string $from, string $to): void
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{
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$this->assertSame($expected, $this->differ->diff($from, $to, new MemoryEfficientLongestCommonSubsequenceCalculator));
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}
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public function testTypesOtherThanArrayAndStringCanBePassed(): void
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{
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$this->assertSame(
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"--- Original\n+++ New\n@@ @@\n-1\n+2\n",
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$this->differ->diff(1, 2)
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);
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}
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public function testArrayDiffs(): void
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{
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$this->assertSame(
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'--- Original
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+++ New
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@@ @@
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-one
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+two
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',
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$this->differ->diff(['one'], ['two'])
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);
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}
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public function arrayProvider(): array
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{
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return [
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[
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[
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['a', Differ::REMOVED],
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['b', Differ::ADDED],
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],
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'a',
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'b',
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],
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[
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[
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['ba', Differ::REMOVED],
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['bc', Differ::ADDED],
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],
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'ba',
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'bc',
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],
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[
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[
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['ab', Differ::REMOVED],
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['cb', Differ::ADDED],
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],
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'ab',
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'cb',
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],
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[
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[
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['abc', Differ::REMOVED],
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['adc', Differ::ADDED],
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],
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'abc',
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'adc',
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],
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[
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[
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['ab', Differ::REMOVED],
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['abc', Differ::ADDED],
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],
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'ab',
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'abc',
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],
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[
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[
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['bc', Differ::REMOVED],
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['abc', Differ::ADDED],
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],
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'bc',
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'abc',
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],
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[
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[
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['abc', Differ::REMOVED],
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['abbc', Differ::ADDED],
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],
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'abc',
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'abbc',
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],
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[
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[
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['abcdde', Differ::REMOVED],
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['abcde', Differ::ADDED],
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],
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'abcdde',
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'abcde',
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],
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'same start' => [
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[
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[17, Differ::OLD],
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['b', Differ::REMOVED],
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['d', Differ::ADDED],
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],
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[30 => 17, 'a' => 'b'],
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[30 => 17, 'c' => 'd'],
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],
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'same end' => [
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[
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[1, Differ::REMOVED],
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[2, Differ::ADDED],
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['b', Differ::OLD],
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],
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[1 => 1, 'a' => 'b'],
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[1 => 2, 'a' => 'b'],
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],
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'same start (2), same end (1)' => [
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[
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[17, Differ::OLD],
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[2, Differ::OLD],
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[4, Differ::REMOVED],
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['a', Differ::ADDED],
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[5, Differ::ADDED],
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['x', Differ::OLD],
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],
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[30 => 17, 1 => 2, 2 => 4, 'z' => 'x'],
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[30 => 17, 1 => 2, 3 => 'a', 2 => 5, 'z' => 'x'],
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],
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'same' => [
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[
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['x', Differ::OLD],
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],
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['z' => 'x'],
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['z' => 'x'],
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],
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'diff' => [
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[
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['y', Differ::REMOVED],
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['x', Differ::ADDED],
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],
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['x' => 'y'],
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['z' => 'x'],
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],
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'diff 2' => [
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[
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['y', Differ::REMOVED],
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['b', Differ::REMOVED],
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['x', Differ::ADDED],
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['d', Differ::ADDED],
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],
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['x' => 'y', 'a' => 'b'],
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['z' => 'x', 'c' => 'd'],
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],
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'test line diff detection' => [
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[
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[
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"#Warning: Strings contain different line endings!\n",
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Differ::DIFF_LINE_END_WARNING,
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],
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[
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"<?php\r\n",
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Differ::REMOVED,
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],
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[
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"<?php\n",
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Differ::ADDED,
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],
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],
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"<?php\r\n",
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"<?php\n",
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],
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'test line diff detection in array input' => [
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[
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[
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"#Warning: Strings contain different line endings!\n",
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Differ::DIFF_LINE_END_WARNING,
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],
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[
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"<?php\r\n",
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Differ::REMOVED,
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],
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[
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"<?php\n",
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Differ::ADDED,
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],
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],
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["<?php\r\n"],
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["<?php\n"],
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],
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];
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}
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public function textProvider(): array
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{
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return [
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[
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"--- Original\n+++ New\n@@ @@\n-a\n+b\n",
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'a',
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'b',
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],
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[
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"--- Original\n+++ New\n@@ @@\n-A\n+A1\n B\n",
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"A\nB",
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"A1\nB",
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],
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[
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<<<EOF
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--- Original
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+++ New
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@@ @@
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a
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-b
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+p
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c
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d
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e
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@@ @@
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g
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h
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i
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-j
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+w
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k
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EOF
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,
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"a\nb\nc\nd\ne\nf\ng\nh\ni\nj\nk\n",
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"a\np\nc\nd\ne\nf\ng\nh\ni\nw\nk\n",
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],
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[
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<<<EOF
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--- Original
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+++ New
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@@ @@
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-A
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+B
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1
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2
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3
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EOF
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,
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"A\n1\n2\n3\n4\n5\n6\n1\n1\n1\n1\n1\n1\n1\n1\n1\n1\n1\n1\n1\n1\n1\n",
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"B\n1\n2\n3\n4\n5\n6\n1\n1\n1\n1\n1\n1\n1\n1\n1\n1\n1\n1\n1\n1\n1\n",
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],
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[
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"--- Original\n+++ New\n@@ @@\n #Warning: Strings contain different line endings!\n-<?php\r\n+<?php\n A\n",
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"<?php\r\nA\n",
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"<?php\nA\n",
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],
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[
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"--- Original\n+++ New\n@@ @@\n #Warning: Strings contain different line endings!\n-a\r\n+\n+c\r\n",
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"a\r\n",
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"\nc\r",
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],
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];
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}
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public function testDiffToArrayInvalidFromType(): void
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{
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$this->expectException(InvalidArgumentException::class);
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$this->expectExceptionMessageRegExp('#^"from" must be an array or string\.$#');
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$this->differ->diffToArray(null, '');
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}
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public function testDiffInvalidToType(): void
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{
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$this->expectException(InvalidArgumentException::class);
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$this->expectExceptionMessageRegExp('#^"to" must be an array or string\.$#');
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$this->differ->diffToArray('', new \stdClass);
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}
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/**
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* @param array $expected
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* @param string $input
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*
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* @dataProvider provideSplitStringByLinesCases
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*/
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public function testSplitStringByLines(array $expected, string $input): void
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{
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$reflection = new \ReflectionObject($this->differ);
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$method = $reflection->getMethod('splitStringByLines');
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$method->setAccessible(true);
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$this->assertSame($expected, $method->invoke($this->differ, $input));
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}
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public function provideSplitStringByLinesCases(): array
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{
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return [
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|
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[
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[],
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'',
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],
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|
|
[
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['a'],
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'a',
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],
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[
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["a\n"],
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"a\n",
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],
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[
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["a\r"],
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"a\r",
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],
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[
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["a\r\n"],
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"a\r\n",
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],
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[
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["\n"],
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"\n",
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],
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[
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["\r"],
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"\r",
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],
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[
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|
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["\r\n"],
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"\r\n",
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],
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[
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[
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"A\n",
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"B\n",
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"\n",
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"C\n",
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],
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|
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"A\nB\n\nC\n",
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],
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|
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[
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|
|
[
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|
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"A\r\n",
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|
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"B\n",
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|
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"\n",
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"C\r",
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],
|
||
|
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"A\r\nB\n\nC\r",
|
||
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],
|
||
|
|
[
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||
|
|
[
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||
|
|
"\n",
|
||
|
|
"A\r\n",
|
||
|
|
"B\n",
|
||
|
|
"\n",
|
||
|
|
'C',
|
||
|
|
],
|
||
|
|
"\nA\r\nB\n\nC",
|
||
|
|
],
|
||
|
|
];
|
||
|
|
}
|
||
|
|
|
||
|
|
public function testConstructorInvalidArgInt(): void
|
||
|
|
{
|
||
|
|
$this->expectException(InvalidArgumentException::class);
|
||
|
|
$this->expectExceptionMessageRegExp('/^Expected builder to be an instance of DiffOutputBuilderInterface, <null> or a string, got integer "1"\.$/');
|
||
|
|
|
||
|
|
new Differ(1);
|
||
|
|
}
|
||
|
|
|
||
|
|
public function testConstructorInvalidArgObject(): void
|
||
|
|
{
|
||
|
|
$this->expectException(InvalidArgumentException::class);
|
||
|
|
$this->expectExceptionMessageRegExp('/^Expected builder to be an instance of DiffOutputBuilderInterface, <null> or a string, got instance of "SplFileInfo"\.$/');
|
||
|
|
|
||
|
|
new Differ(new \SplFileInfo(__FILE__));
|
||
|
|
}
|
||
|
|
}
|