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<?php declare(strict_types=1);
/*
* This file is part of sebastian/diff.
*
* (c) Sebastian Bergmann <sebastian@phpunit.de>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace SebastianBergmann\Diff\Output;
use PHPUnit\Framework\TestCase;
use SebastianBergmann\Diff\Differ;
/**
* @covers SebastianBergmann\Diff\Output\AbstractChunkOutputBuilder
*
* @uses SebastianBergmann\Diff\Differ
* @uses SebastianBergmann\Diff\Output\UnifiedDiffOutputBuilder
* @uses SebastianBergmann\Diff\TimeEfficientLongestCommonSubsequenceCalculator
*/
final class AbstractChunkOutputBuilderTest extends TestCase
{
/**
* @param array $expected
* @param string $from
* @param string $to
* @param int $lineThreshold
*
* @dataProvider provideGetCommonChunks
*/
public function testGetCommonChunks(array $expected, string $from, string $to, int $lineThreshold = 5): void
{
$output = new class extends AbstractChunkOutputBuilder {
public function getDiff(array $diff): string
{
return '';
}
public function getChunks(array $diff, $lineThreshold)
{
return $this->getCommonChunks($diff, $lineThreshold);
}
};
$this->assertSame(
$expected,
$output->getChunks((new Differ)->diffToArray($from, $to), $lineThreshold)
);
}
public function provideGetCommonChunks(): array
{
return[
'same (with default threshold)' => [
[],
'A',
'A',
],
'same (threshold 0)' => [
[0 => 0],
'A',
'A',
0,
],
'empty' => [
[],
'',
'',
],
'single line diff' => [
[],
'A',
'B',
],
'below threshold I' => [
[],
"A\nX\nC",
"A\nB\nC",
],
'below threshold II' => [
[],
"A\n\n\n\nX\nC",
"A\n\n\n\nB\nC",
],
'below threshold III' => [
[0 => 5],
"A\n\n\n\n\n\nB",
"A\n\n\n\n\n\nA",
],
'same start' => [
[0 => 5],
"A\n\n\n\n\n\nX\nC",
"A\n\n\n\n\n\nB\nC",
],
'same start long' => [
[0 => 13],
"\n\n\n\n\n\n\n\n\n\n\n\n\n\nA",
"\n\n\n\n\n\n\n\n\n\n\n\n\n\nB",
],
'same part in between' => [
[2 => 8],
"A\n\n\n\n\n\n\nX\nY\nZ\n\n",
"B\n\n\n\n\n\n\nX\nA\nZ\n\n",
],
'same trailing' => [
[2 => 14],
"A\n\n\n\n\n\n\n\n\n\n\n\n\n\n",
"B\n\n\n\n\n\n\n\n\n\n\n\n\n\n",
],
'same part in between, same trailing' => [
[2 => 7, 10 => 15],
"A\n\n\n\n\n\n\nA\n\n\n\n\n\n\n",
"B\n\n\n\n\n\n\nB\n\n\n\n\n\n\n",
],
'below custom threshold I' => [
[],
"A\n\nB",
"A\n\nD",
2,
],
'custom threshold I' => [
[0 => 1],
"A\n\nB",
"A\n\nD",
1,
],
'custom threshold II' => [
[],
"A\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n",
"A\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n",
19,
],
[
[3 => 9],
"a\nb\nc\nd\ne\nf\ng\nh\ni\nj\nk",
"a\np\nc\nd\ne\nf\ng\nh\ni\nw\nk",
],
[
[0 => 5, 8 => 13],
"A\nA\nA\nA\nA\nA\nX\nC\nC\nC\nC\nC\nC",
"A\nA\nA\nA\nA\nA\nB\nC\nC\nC\nC\nC\nC",
],
[
[0 => 5, 8 => 13],
"A\nA\nA\nA\nA\nA\nX\nC\nC\nC\nC\nC\nC\nX",
"A\nA\nA\nA\nA\nA\nB\nC\nC\nC\nC\nC\nC\nY",
],
];
}
}