416 lines
15 KiB
PHP
416 lines
15 KiB
PHP
<?php
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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 SebastianBergmann\Diff\LCS\MemoryEfficientImplementation;
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use SebastianBergmann\Diff\LCS\TimeEfficientImplementation;
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use PHPUnit\Framework\TestCase;
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/**
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* @covers SebastianBergmann\Diff\Differ
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*
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* @uses SebastianBergmann\Diff\LCS\MemoryEfficientImplementation
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* @uses SebastianBergmann\Diff\LCS\TimeEfficientImplementation
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* @uses SebastianBergmann\Diff\Chunk
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* @uses SebastianBergmann\Diff\Diff
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* @uses SebastianBergmann\Diff\Line
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* @uses SebastianBergmann\Diff\Parser
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*/
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class DifferTest extends TestCase
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{
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const REMOVED = 2;
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const ADDED = 1;
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const OLD = 0;
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/**
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* @var Differ
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*/
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private $differ;
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protected function setUp()
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{
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$this->differ = new Differ;
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}
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/**
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* @param array $expected
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* @param string|array $from
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* @param string|array $to
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* @dataProvider arrayProvider
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*/
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public function testArrayRepresentationOfDiffCanBeRenderedUsingTimeEfficientLcsImplementation(array $expected, $from, $to)
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{
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$this->assertEquals($expected, $this->differ->diffToArray($from, $to, new TimeEfficientImplementation));
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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 $to
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* @dataProvider textProvider
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*/
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public function testTextRepresentationOfDiffCanBeRenderedUsingTimeEfficientLcsImplementation($expected, $from, $to)
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{
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$this->assertEquals($expected, $this->differ->diff($from, $to, new TimeEfficientImplementation));
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}
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/**
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* @param array $expected
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* @param string|array $from
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* @param string|array $to
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* @dataProvider arrayProvider
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*/
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public function testArrayRepresentationOfDiffCanBeRenderedUsingMemoryEfficientLcsImplementation(array $expected, $from, $to)
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{
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$this->assertEquals($expected, $this->differ->diffToArray($from, $to, new MemoryEfficientImplementation));
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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 $to
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* @dataProvider textProvider
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*/
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public function testTextRepresentationOfDiffCanBeRenderedUsingMemoryEfficientLcsImplementation($expected, $from, $to)
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{
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$this->assertEquals($expected, $this->differ->diff($from, $to, new MemoryEfficientImplementation));
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}
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public function testCustomHeaderCanBeUsed()
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{
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$differ = new Differ('CUSTOM HEADER');
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$this->assertEquals(
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"CUSTOM HEADER@@ @@\n-a\n+b\n",
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$differ->diff('a', 'b')
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);
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}
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public function testTypesOtherThanArrayAndStringCanBePassed()
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{
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$this->assertEquals(
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"--- Original\n+++ New\n@@ @@\n-1\n+2\n",
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$this->differ->diff(1, 2)
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);
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}
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/**
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* @param string $diff
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* @param Diff[] $expected
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* @dataProvider diffProvider
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*/
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public function testParser($diff, array $expected)
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{
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$parser = new Parser;
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$result = $parser->parse($diff);
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$this->assertEquals($expected, $result);
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}
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public function arrayProvider()
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{
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return array(
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array(
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array(
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array('a', self::REMOVED),
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array('b', self::ADDED)
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),
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'a',
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'b'
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),
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array(
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array(
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array('ba', self::REMOVED),
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array('bc', self::ADDED)
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),
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'ba',
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'bc'
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),
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array(
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array(
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array('ab', self::REMOVED),
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array('cb', self::ADDED)
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),
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'ab',
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'cb'
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),
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array(
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array(
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array('abc', self::REMOVED),
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array('adc', self::ADDED)
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),
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'abc',
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'adc'
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),
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array(
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array(
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array('ab', self::REMOVED),
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array('abc', self::ADDED)
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),
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'ab',
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'abc'
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),
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array(
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array(
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array('bc', self::REMOVED),
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array('abc', self::ADDED)
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),
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'bc',
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'abc'
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),
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array(
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array(
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array('abc', self::REMOVED),
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array('abbc', self::ADDED)
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),
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'abc',
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'abbc'
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),
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array(
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array(
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array('abcdde', self::REMOVED),
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array('abcde', self::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' => array(
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array(
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array(17, self::OLD),
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array('b', self::REMOVED),
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array('d', self::ADDED),
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),
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array(30 => 17, 'a' => 'b'),
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array(30 => 17, 'c' => 'd'),
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),
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'same end' => array(
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array(
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array(1, self::REMOVED),
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array(2, self::ADDED),
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array('b', self::OLD),
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),
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array(1 => 1, 'a' => 'b'),
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array(1 => 2, 'a' => 'b'),
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),
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'same start (2), same end (1)' => array(
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array(
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array(17, self::OLD),
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array(2, self::OLD),
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array(4, self::REMOVED),
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array('a', self::ADDED),
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array(5, self::ADDED),
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array('x', self::OLD),
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),
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array(30 => 17, 1 => 2, 2 => 4, 'z' => 'x'),
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array(30 => 17, 1 => 2, 3 => 'a', 2 => 5, 'z' => 'x'),
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),
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'same' => array(
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array(
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array('x', self::OLD),
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),
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array('z' => 'x'),
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array('z' => 'x'),
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),
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'diff' => array(
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array(
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array('y', self::REMOVED),
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array('x', self::ADDED),
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),
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array('x' => 'y'),
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array('z' => 'x'),
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),
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'diff 2' => array(
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array(
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array('y', self::REMOVED),
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array('b', self::REMOVED),
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array('x', self::ADDED),
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array('d', self::ADDED),
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),
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array('x' => 'y', 'a' => 'b'),
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array('z' => 'x', 'c' => 'd'),
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),
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'test line diff detection' => array(
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array(
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array(
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'#Warning: Strings contain different line endings!',
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self::OLD,
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),
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array(
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'<?php',
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self::OLD,
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),
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array(
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'',
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self::OLD,
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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()
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{
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return array(
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array(
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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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array(
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"--- Original\n+++ New\n@@ @@\n-ba\n+bc\n",
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'ba',
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'bc'
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),
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array(
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"--- Original\n+++ New\n@@ @@\n-ab\n+cb\n",
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'ab',
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'cb'
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),
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array(
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"--- Original\n+++ New\n@@ @@\n-abc\n+adc\n",
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'abc',
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'adc'
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),
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array(
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"--- Original\n+++ New\n@@ @@\n-ab\n+abc\n",
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'ab',
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'abc'
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),
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array(
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"--- Original\n+++ New\n@@ @@\n-bc\n+abc\n",
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'bc',
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'abc'
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),
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array(
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"--- Original\n+++ New\n@@ @@\n-abc\n+abbc\n",
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'abc',
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'abbc'
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),
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array(
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"--- Original\n+++ New\n@@ @@\n-abcdde\n+abcde\n",
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'abcdde',
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'abcde'
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),
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array(
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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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array(
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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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@@ @@
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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",
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"a\np\nc\nd\ne\nf\ng\nh\ni\nw\nk",
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),
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array(
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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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@@ @@
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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",
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"a\np\nc\nd\ne\nf\ng\nh\ni\nw\nk",
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),
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);
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}
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public function diffProvider()
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{
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$serialized_arr = <<<EOL
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a:1:{i:0;O:27:"SebastianBergmann\Diff\Diff":3:{s:33:" |