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StrictUnifiedDiffOutputBuilderTest.php
<?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\ConfigurationException; use SebastianBergmann\Diff\Differ; use SebastianBergmann\Diff\Utils\UnifiedDiffAssertTrait; /** * @covers SebastianBergmann\Diff\Output\StrictUnifiedDiffOutputBuilder * * @uses SebastianBergmann\Diff\Differ */ final class StrictUnifiedDiffOutputBuilderTest extends TestCase { use UnifiedDiffAssertTrait; /** * @param string $expected * @param string $from * @param string $to * @param array $options * * @dataProvider provideOutputBuildingCases */ public function testOutputBuilding(string $expected, string $from, string $to, array $options): void { $diff = $this->getDiffer($options)->diff($from, $to); $this->assertValidDiffFormat($diff); $this->assertSame($expected, $diff); } /** * @param string $expected * @param string $from * @param string $to * @param array $options * * @dataProvider provideSample */ public function testSample(string $expected, string $from, string $to, array $options): void { $diff = $this->getDiffer($options)->diff($from, $to); $this->assertValidDiffFormat($diff); $this->assertSame($expected, $diff); } /** * {@inheritdoc} */ public function assertValidDiffFormat(string $diff): void { $this->assertValidUnifiedDiffFormat($diff); } /** * {@inheritdoc} */ public function provideOutputBuildingCases(): array { return StrictUnifiedDiffOutputBuilderDataProvider::provideOutputBuildingCases(); } /** * {@inheritdoc} */ public function provideSample(): array { return StrictUnifiedDiffOutputBuilderDataProvider::provideSample(); } /** * @param string $expected * @param string $from * @param string $to * * @dataProvider provideBasicDiffGeneration */ public function testBasicDiffGeneration(string $expected, string $from, string $to): void { $diff = $this->getDiffer([ 'fromFile' => 'input.txt', 'toFile' => 'output.txt', ])->diff($from, $to); $this->assertValidDiffFormat($diff); $this->assertSame($expected, $diff); } public function provideBasicDiffGeneration(): array { return StrictUnifiedDiffOutputBuilderDataProvider::provideBasicDiffGeneration(); } /** * @param string $expected * @param string $from * @param string $to * @param array $config * * @dataProvider provideConfiguredDiffGeneration */ public function testConfiguredDiffGeneration(string $expected, string $from, string $to, array $config = []): void { $diff = $this->getDiffer(\array_merge([ 'fromFile' => 'input.txt', 'toFile' => 'output.txt', ], $config))->diff($from, $to); $this->assertValidDiffFormat($diff); $this->assertSame($expected, $diff); } public function provideConfiguredDiffGeneration(): array { return [ [ '--- input.txt +++ output.txt @@ -1 +1 @@ -a \ No newline at end of file +b \ No newline at end of file ', 'a', 'b', ], [ '', "1\n2", "1\n2", ], [ '', "1\n", "1\n", ], [ '--- input.txt +++ output.txt @@ -4 +4 @@ -X +4 ', "1\n2\n3\nX\n5\n6\n7\n8\n9\n0\n", "1\n2\n3\n4\n5\n6\n7\n8\n9\n0\n", [ 'contextLines' => 0, ], ], [ '--- input.txt +++ output.txt @@ -3,3 +3,3 @@ 3 -X +4 5 ', "1\n2\n3\nX\n5\n6\n7\n8\n9\n0\n", "1\n2\n3\n4\n5\n6\n7\n8\n9\n0\n", [ 'contextLines' => 1, ], ], [ '--- input.txt +++ output.txt @@ -1,10 +1,10 @@ 1 2 3 -X +4 5 6 7 8 9 0 ', "1\n2\n3\nX\n5\n6\n7\n8\n9\n0\n", "1\n2\n3\n4\n5\n6\n7\n8\n9\n0\n", [ 'contextLines' => 999, ], ], [ '--- input.txt +++ output.txt @@ -1,0 +1,2 @@ + +A ', '', "\nA\n", ], [ '--- input.txt +++ output.txt @@ -1,2 +1,0 @@ - -A ', "\nA\n", '', ], [ '--- input.txt +++ output.txt @@ -1,5 +1,5 @@ 1 -X +2 3 -Y +4 5 @@ -8,3 +8,3 @@ 8 -X +9 0 ', "1\nX\n3\nY\n5\n6\n7\n8\nX\n0\n", "1\n2\n3\n4\n5\n6\n7\n8\n9\n0\n", [ 'commonLineThreshold' => 2, 'contextLines' => 1, ], ], [ '--- input.txt +++ output.txt @@ -2 +2 @@ -X +2 @@ -4 +4 @@ -Y +4 @@ -9 +9 @@ -X +9 ', "1\nX\n3\nY\n5\n6\n7\n8\nX\n0\n", "1\n2\n3\n4\n5\n6\n7\n8\n9\n0\n", [ 'commonLineThreshold' => 1, 'contextLines' => 0, ], ], ]; } public function testReUseBuilder(): void { $differ = $this->getDiffer([ 'fromFile' => 'input.txt', 'toFile' => 'output.txt', ]); $diff = $differ->diff("A\nB\n", "A\nX\n"); $this->assertSame( '--- input.txt +++ output.txt @@ -1,2 +1,2 @@ A -B +X ', $diff ); $diff = $differ->diff("A\n", "A\n"); $this->assertSame( '', $diff ); } public function testEmptyDiff(): void { $builder = new StrictUnifiedDiffOutputBuilder([ 'fromFile' => 'input.txt', 'toFile' => 'output.txt', ]); $this->assertSame( '', $builder->getDiff([]) ); } /** * @param array $options * @param string $message * * @dataProvider provideInvalidConfiguration */ public function testInvalidConfiguration(array $options, string $message): void { $this->expectException(ConfigurationException::class); $this->expectExceptionMessageRegExp(\sprintf('#^%s$#', \preg_quote($message, '#'))); new StrictUnifiedDiffOutputBuilder($options); } public function provideInvalidConfiguration(): array { $time = \time(); return [ [ ['collapseRanges' => 1], 'Option "collapseRanges" must be a bool, got "integer#1".', ], [ ['contextLines' => 'a'], 'Option "contextLines" must be an int >= 0, got "string#a".', ], [ ['commonLineThreshold' => -2], 'Option "commonLineThreshold" must be an int > 0, got "integer#-2".', ], [ ['commonLineThreshold' => 0], 'Option "commonLineThreshold" must be an int > 0, got "integer#0".', ], [ ['fromFile' => new \SplFileInfo(__FILE__)], 'Option "fromFile" must be a string, got "SplFileInfo".', ], [ ['fromFile' => null], 'Option "fromFile" must be a string, got "<null>".', ], [ [ 'fromFile' => __FILE__, 'toFile' => 1, ], 'Option "toFile" must be a string, got "integer#1".', ], [ [ 'fromFile' => __FILE__, 'toFile' => __FILE__, 'toFileDate' => $time, ], 'Option "toFileDate" must be a string or <null>, got "integer#' . $time . '".', ], [ [], 'Option "fromFile" must be a string, got "<null>".', ], ]; } /** * @param string $expected * @param string $from * @param string $to * @param int $threshold * * @dataProvider provideCommonLineThresholdCases */ public function testCommonLineThreshold(string $expected, string $from, string $to, int $threshold): void { $diff = $this->getDiffer([ 'fromFile' => 'input.txt', 'toFile' => 'output.txt', 'commonLineThreshold' => $threshold, 'contextLines' => 0, ])->diff($from, $to); $this->assertValidDiffFormat($diff); $this->assertSame($expected, $diff); } public function provideCommonLineThresholdCases(): array { return [ [ '--- input.txt +++ output.txt @@ -2,3 +2,3 @@ -X +B C12 -Y +D @@ -7 +7 @@ -X +Z ', "A\nX\nC12\nY\nA\nA\nX\n", "A\nB\nC12\nD\nA\nA\nZ\n", 2, ], [ '--- input.txt +++ output.txt @@ -2 +2 @@ -X +B @@ -4 +4 @@ -Y +D ', "A\nX\nV\nY\n", "A\nB\nV\nD\n", 1, ], ]; } /** * @param string $expected * @param string $from * @param string $to * @param int $contextLines * @param int $commonLineThreshold * * @dataProvider provideContextLineConfigurationCases */ public function testContextLineConfiguration(string $expected, string $from, string $to, int $contextLines, int $commonLineThreshold = 6): void { $diff = $this->getDiffer([ 'fromFile' => 'input.txt', 'toFile' => 'output.txt', 'contextLines' => $contextLines, 'commonLineThreshold' => $commonLineThreshold, ])->diff($from, $to); $this->assertValidDiffFormat($diff); $this->assertSame($expected, $diff); } public function provideContextLineConfigurationCases(): array { $from = "A\nB\nC\nD\nE\nF\nX\nG\nH\nI\nJ\nK\nL\nM\n"; $to = "A\nB\nC\nD\nE\nF\nY\nG\nH\nI\nJ\nK\nL\nM\n"; return [ 'EOF 0' => [ "--- input.txt\n+++ output.txt\n@@ -3 +3 @@ -X \\ No newline at end of file +Y \\ No newline at end of file ", "A\nB\nX", "A\nB\nY", 0, ], 'EOF 1' => [ "--- input.txt\n+++ output.txt\n@@ -2,2 +2,2 @@ B -X \\ No newline at end of file +Y \\ No newline at end of file ", "A\nB\nX", "A\nB\nY", 1, ], 'EOF 2' => [ "--- input.txt\n+++ output.txt\n@@ -1,3 +1,3 @@ A B -X \\ No newline at end of file +Y \\ No newline at end of file ", "A\nB\nX", "A\nB\nY", 2, ], 'EOF 200' => [ "--- input.txt\n+++ output.txt\n@@ -1,3 +1,3 @@ A B -X \\ No newline at end of file +Y \\ No newline at end of file ", "A\nB\nX", "A\nB\nY", 200, ], 'n/a 0' => [ "--- input.txt\n+++ output.txt\n@@ -7 +7 @@\n-X\n+Y\n", $from, $to, 0, ], 'G' => [ "--- input.txt\n+++ output.txt\n@@ -6,3 +6,3 @@\n F\n-X\n+Y\n G\n", $from, $to, 1, ], 'H' => [ "--- input.txt\n+++ output.txt\n@@ -5,5 +5,5 @@\n E\n F\n-X\n+Y\n G\n H\n", $from, $to, 2, ], 'I' => [ "--- input.txt\n+++ output.txt\n@@ -4,7 +4,7 @@\n D\n E\n F\n-X\n+Y\n G\n H\n I\n", $from, $to, 3, ], 'J' => [ "--- input.txt\n+++ output.txt\n@@ -3,9 +3,9 @@\n C\n D\n E\n F\n-X\n+Y\n G\n H\n I\n J\n", $from, $to, 4, ], 'K' => [ "--- input.txt\n+++ output.txt\n@@ -2,11 +2,11 @@\n B\n C\n D\n E\n F\n-X\n+Y\n G\n H\n I\n J\n K\n", $from, $to, 5, ], 'L' => [ "--- input.txt\n+++ output.txt\n@@ -1,13 +1,13 @@\n A\n B\n C\n D\n E\n F\n-X\n+Y\n G\n H\n I\n J\n K\n L\n", $from, $to, 6, ], 'M' => [ "--- input.txt\n+++ output.txt\n@@ -1,14 +1,14 @@\n A\n B\n C\n D\n E\n F\n-X\n+Y\n G\n H\n I\n J\n K\n L\n M\n", $from, $to, 7, ], 'M no linebreak EOF .1' => [ "--- input.txt\n+++ output.txt\n@@ -1,14 +1,14 @@\n A\n B\n C\n D\n E\n F\n-X\n+Y\n G\n H\n I\n J\n K\n L\n-M\n+M\n\\ No newline at end of file\n", $from, \substr($to, 0, -1), 7, ], 'M no linebreak EOF .2' => [ "--- input.txt\n+++ output.txt\n@@ -1,14 +1,14 @@\n A\n B\n C\n D\n E\n F\n-X\n+Y\n G\n H\n I\n J\n K\n L\n-M\n\\ No newline at end of file\n+M\n", \substr($from, 0, -1), $to, 7, ], 'M no linebreak EOF .3' => [ "--- input.txt\n+++ output.txt\n@@ -1,14 +1,14 @@\n A\n B\n C\n D\n E\n F\n-X\n+Y\n G\n H\n I\n J\n K\n L\n M\n", \substr($from, 0, -1), \substr($to, 0, -1), 7, ], 'M no linebreak EOF .4' => [ "--- input.txt\n+++ output.txt\n@@ -1,14 +1,14 @@\n A\n B\n C\n D\n E\n F\n-X\n+Y\n G\n H\n I\n J\n K\n L\n M\n\\ No newline at end of file\n", \substr($from, 0, -1), \substr($to, 0, -1), 10000, 10000, ], 'M+1' => [ "--- input.txt\n+++ output.txt\n@@ -1,14 +1,14 @@\n A\n B\n C\n D\n E\n F\n-X\n+Y\n G\n H\n I\n J\n K\n L\n M\n", $from, $to, 8, ], 'M+100' => [ "--- input.txt\n+++ output.txt\n@@ -1,14 +1,14 @@\n A\n B\n C\n D\n E\n F\n-X\n+Y\n G\n H\n I\n J\n K\n L\n M\n", $from, $to, 107, ], '0 II' => [ "--- input.txt\n+++ output.txt\n@@ -12 +12 @@\n-X\n+Y\n", "A\nB\nC\nD\nE\nF\nG\nH\nI\nJ\nK\nX\nM\n", "A\nB\nC\nD\nE\nF\nG\nH\nI\nJ\nK\nY\nM\n", 0, 999, ], '0\' II' => [ "--- input.txt\n+++ output.txt\n@@ -12 +12 @@\n-X\n+Y\n", "A\nB\nC\nD\nE\nF\nG\nH\nI\nJ\nK\nX\nM\nA\nA\nA\nA\nA\n", "A\nB\nC\nD\nE\nF\nG\nH\nI\nJ\nK\nY\nM\nA\nA\nA\nA\nA\n", 0, 999, ], '0\'\' II' => [ "--- input.txt\n+++ output.txt\n@@ -12,2 +12,2 @@\n-X\n-M\n\\ No newline at end of file\n+Y\n+M\n", "A\nB\nC\nD\nE\nF\nG\nH\nI\nJ\nK\nX\nM", "A\nB\nC\nD\nE\nF\nG\nH\nI\nJ\nK\nY\nM\n", 0, ], '0\'\'\' II' => [ "--- input.txt\n+++ output.txt\n@@ -12,2 +12,2 @@\n-X\n-X1\n+Y\n+Y2\n", "A\nB\nC\nD\nE\nF\nG\nH\nI\nJ\nK\nX\nX1\nM\nA\nA\nA\nA\nA\n", "A\nB\nC\nD\nE\nF\nG\nH\nI\nJ\nK\nY\nY2\nM\nA\nA\nA\nA\nA\n", 0, 999, ], '1 II' => [ "--- input.txt\n+++ output.txt\n@@ -11,3 +11,3 @@\n K\n-X\n+Y\n M\n", "A\nB\nC\nD\nE\nF\nG\nH\nI\nJ\nK\nX\nM\n", "A\nB\nC\nD\nE\nF\nG\nH\nI\nJ\nK\nY\nM\n", 1, ], '5 II' => [ "--- input.txt\n+++ output.txt\n@@ -7,7 +7,7 @@\n G\n H\n I\n J\n K\n-X\n+Y\n M\n", "A\nB\nC\nD\nE\nF\nG\nH\nI\nJ\nK\nX\nM\n", "A\nB\nC\nD\nE\nF\nG\nH\nI\nJ\nK\nY\nM\n", 5, ], [ '--- input.txt +++ output.txt @@ -1,28 +1,28 @@ A -X +B V -Y +D 1 A 2 A 3 A 4 A 8 A 9 A 5 A A A A A A A A A A A ', "A\nX\nV\nY\n1\nA\n2\nA\n3\nA\n4\nA\n8\nA\n9\nA\n5\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\n", "A\nB\nV\nD\n1\nA\n2\nA\n3\nA\n4\nA\n8\nA\n9\nA\n5\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\nA\n", 9999, 99999, ], ]; } /** * Returns a new instance of a Differ with a new instance of the class (DiffOutputBuilderInterface) under test. * * @param array $options * * @return Differ */ private function getDiffer(array $options = []): Differ { return new Differ(new StrictUnifiedDiffOutputBuilder($options)); } }