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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\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));
}
}