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<?php
/**
* @covers \EchoDiffParser
* @group Echo
*/
class EchoDiffParserTest extends MediaWikiUnitTestCase {
/**
* @dataProvider provider_getChangeSet
*/
public function testGetChangeSet( $message, array $expect, $leftText, $rightText ) {
$changeSet = EchoDiscussionParser::getMachineReadableDiff( $leftText, $rightText );
unset( $changeSet['_info'] );
$this->assertEquals( $expect, $changeSet, $message );
}
public static function provider_getChangeSet() {
return [
[
'Duplicate content must generate no changes',
// Expected change set
[],
// Left text
"a\nb\nc",
// Right text
"a\nb\nc",
],
[
'Removing blank lines must generate no changes',
// Expected change set
[],
// Left text
"a\n\nb\n\nc",
// Right text
"a\nb\nc\n",
],
[
'Must generate a single add change with only lines added',
// Expected change set
[ self::mockAction( 'add', "foo\nbar", 1 ) ],
// Left
"something",
// Right
"foo\nbar\nsomething",
],
[
'Must generate a single subtract change with only lines subtracted',
// Expected change set
[ self::mockAction( 'subtract', "Zomg\nHiHiHi", 2 ) ],
// Left
"dummy\nZomg\nHiHiHi",
// Right
"dummy",
],
[
'Adding content separated by no change must generate multiple changes',
// Expected change set
[
self::mockAction( 'add', 'b1', 3 ),
self::mockAction( 'add', "d1\nd2", 5, 6 ),
],
// Left text
"a\nb\nc\nd\ne\nf",
// Right text
"a\nb\nb1\nc\nd\nd1\nd2\ne\nf",
],
[
'Additon with empty line should be one action',
// Expected change set
[ self::mockAction( 'add', "User\n\nSignature", 1 ) ],
// Left text
"",
// Right text
"User\n\nSignature",
],
[
'Extra blank lines on the edges must be trimmed',
// Expected change set
[ self::mockAction( 'add', "Zomg\nHiHiHi", 1 ) ],
// Left text
"",
// Right text
"\nZomg\nHiHiHi\n",
],
[
'Extra blank lines inside the content must not be trimmed',
// Expected change set
[ self::mockAction( 'add', "\nZomg\nHiHiHi\n", 2 ) ],
// Left text
"foo\nbar",
// Right text
"foo\n\nZomg\nHiHiHi\n\nbar",
],
[
'A blank line replaced with content must be an add',
// Expected change set
[ self::mockAction( 'add', 'cowbell', 1 ) ],
// Left Text
"",
// Right Text
"cowbell",
],
[
'A blanked out line must be a subtraction',
// Expected change set
[ self::mockAction( 'subtract', 'cowbell', 1 ) ],
// Left text
"cowbell",
// Right text
"",
],
[
'A line with its content replaced must be a change',
// Expected change set
[ self::mockChange( 'Its all about the journey', 'dummy', 1 ) ],
// Left text
"Its all about the journey",
// Right text
"dummy",
],
[
'Changing lines and adding more must result in two changes',
// Expected change set
[
self::mockChange( 'Must be in a hurry to finish this thing', 'Must be in a hurry', 1 ),
self::mockAction( 'add', 'Finish this thing', 2 ),
],
// Left text
"Must be in a hurry to finish this thing",
// Right text
"Must be in a hurry\nFinish this thing",
],
[
'Changing multiple lines and adding more must result in two changes',
// Expected change set
[
self::mockChange( "Must not be\nin much of a hurry", "Must be\nin a hurry", 2 ),
self::mockAction( 'subtract', "to finish\nthis thing", 4 ),
],
// Left text
"abc\nMust not be\nin much of a hurry\nto finish\nthis thing",
// Right text
"abc\nMust be\nin a hurry",
],
[
'Must generate multiple add, change, and subtract actions',
// Expected change set
[
self::mockChange( "abc\nSome", "Other\nThings", 1 ),
self::mockAction( 'subtract', "Stuff", 3 ),
self::mockChange( "And\nThen", "There\nWas", 6, 5 ),
self::mockAction( 'add', 'Fencing', 8, 7 ),
],
// Left text
"abc\nSome\nStuff\ndef\nghi\nAnd\nThen\njkl\nmno",
// Right text
"\nOther\nThings\ndef\nghi\nThere\nWas\nFencing\njkl\nmno",
],
];
}
protected static function mockAction( $action, $content, $left, $right = null ) {
if ( $right === null ) {
$right = $left;
}
return [
'action' => $action,
'content' => $content,
'left-pos' => $left,
'right-pos' => $right,
];
}
public static function mockChange( $oldContent, $newContent, $left, $right = null ) {
if ( $right === null ) {
$right = $left;
}
return [
'action' => 'change',
'old_content' => $oldContent,
'new_content' => $newContent,
'left-pos' => $left,
'right-pos' => $right,
];
}
}
|
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