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<?php
namespace MediaWiki\Extension\DiscussionTools\Tests;
use DateTimeImmutable;
use MediaWiki\Extension\DiscussionTools\CommentParser;
use MediaWiki\Extension\DiscussionTools\CommentUtils;
use MediaWiki\Extension\DiscussionTools\ImmutableRange;
use MediaWiki\Extension\DiscussionTools\ThreadItem\ContentCommentItem;
use MediaWiki\Extension\DiscussionTools\ThreadItem\ContentHeadingItem;
use MediaWiki\Extension\DiscussionTools\ThreadItem\ContentThreadItem;
use RuntimeException;
use stdClass;
use Wikimedia\Parsoid\DOM\Element;
use Wikimedia\Parsoid\DOM\Node;
use Wikimedia\Parsoid\DOM\Text;
use Wikimedia\TestingAccessWrapper;
/**
* @group DiscussionTools
* @covers \MediaWiki\Extension\DiscussionTools\CommentParser
* @covers \MediaWiki\Extension\DiscussionTools\CommentUtils
*/
class CommentParserTest extends IntegrationTestCase {
/**
* Get the offset path from ancestor to offset in descendant
*
* Convert Unicode codepoint offsets to UTF-16 code unit offsets.
*/
private static function getOffsetPath(
Element $ancestor, Node $node, int $nodeOffset
): string {
if ( $node instanceof Text ) {
$str = mb_substr( $node->nodeValue, 0, $nodeOffset );
// Count characters that require two code units to encode in UTF-16
$count = preg_match_all( '/[\x{010000}-\x{10FFFF}]/u', $str );
$nodeOffset += $count;
}
$path = [ $nodeOffset ];
while ( $node !== $ancestor ) {
if ( !$node->parentNode ) {
throw new RuntimeException( 'Not a descendant' );
}
array_unshift( $path, CommentUtils::childIndexOf( $node ) );
$node = $node->parentNode;
}
return implode( '/', $path );
}
private static function getPathsFromRange( ImmutableRange $range, Element $root ): array {
return [
static::getOffsetPath( $root, $range->startContainer, $range->startOffset ),
static::getOffsetPath( $root, $range->endContainer, $range->endOffset )
];
}
private static function serializeComments( ContentThreadItem $threadItem, Element $root ): stdClass {
$serialized = new stdClass();
if ( $threadItem instanceof ContentHeadingItem ) {
$serialized->placeholderHeading = $threadItem->isPlaceholderHeading();
}
$serialized->type = $threadItem->getType();
if ( $threadItem instanceof ContentCommentItem ) {
$serialized->timestamp = $threadItem->getTimestampString();
$serialized->author = $threadItem->getAuthor();
if ( $threadItem->getDisplayName() ) {
$serialized->displayName = $threadItem->getDisplayName();
}
}
// Can't serialize the DOM nodes involved in the range,
// instead use their offsets within their parent nodes
$range = $threadItem->getRange();
$serialized->range = static::getPathsFromRange( $range, $root );
if ( $threadItem instanceof ContentCommentItem ) {
$serialized->signatureRanges = array_map( function ( ImmutableRange $range ) use ( $root ) {
return static::getPathsFromRange( $range, $root );
}, $threadItem->getSignatureRanges() );
$serialized->timestampRanges = array_map( function ( ImmutableRange $range ) use ( $root ) {
return static::getPathsFromRange( $range, $root );
}, $threadItem->getTimestampRanges() );
}
if ( $threadItem instanceof ContentHeadingItem ) {
$serialized->headingLevel = $threadItem->getHeadingLevel();
}
$serialized->level = $threadItem->getLevel();
$serialized->name = $threadItem->getName();
$serialized->id = $threadItem->getId();
$serialized->warnings = $threadItem->getWarnings();
$serialized->replies = [];
foreach ( $threadItem->getReplies() as $reply ) {
$serialized->replies[] = static::serializeComments( $reply, $root );
}
return $serialized;
}
/**
* @dataProvider provideTimestampRegexps
*/
public function testGetTimestampRegexp(
string $format, string $expected, string $message
): void {
$config = static::getJson( "../data/enwiki-config.json" );
$data = static::getJson( "../data/enwiki-data.json" );
/** @var CommentParser $parser */
$parser = TestingAccessWrapper::newFromObject(
$this->createParser( $config, $data )
);
// HACK: Fix differences between JS & PHP regexes
// TODO: We may just have to have two version in the test data
$expected = preg_replace( '/\\\\u([0-9A-F]+)/', '\\\\x{$1}', $expected );
$expected = str_replace( ':', '\:', $expected );
$expected = '/' . $expected . '/u';
$result = $parser->getTimestampRegexp( 'en', $format, '\\d', [ 'UTC' => 'UTC' ] );
static::assertSame( $expected, $result, $message );
}
public static function provideTimestampRegexps(): array {
return static::getJson( '../cases/timestamp-regex.json' );
}
/**
* @dataProvider provideTimestampParser
*/
public function testGetTimestampParser(
string $format, ?array $digits, array $matchData, string $expected, string $message
): void {
$config = static::getJson( "../data/enwiki-config.json" );
$data = static::getJson( "../data/enwiki-data.json" );
/** @var CommentParser $parser */
$parser = TestingAccessWrapper::newFromObject(
$this->createParser( $config, $data )
);
$expected = new DateTimeImmutable( $expected );
$tsParser = $parser->getTimestampParser( 'en', $format, $digits, 'UTC', [ 'UTC' => 'UTC' ] );
static::assertEquals( $expected, $tsParser( $matchData )['date'], $message );
}
public static function provideTimestampParser(): array {
return static::getJson( '../cases/timestamp-parser.json' );
}
/**
* @dataProvider provideTimestampParserDST
*/
public function testGetTimestampParserDST(
string $sample, string $expected, string $expectedUtc, string $format,
string $timezone, array $timezoneAbbrs, string $message
): void {
$config = static::getJson( "../data/enwiki-config.json" );
$data = static::getJson( "../data/enwiki-data.json" );
/** @var CommentParser $parser */
$parser = TestingAccessWrapper::newFromObject(
$this->createParser( $config, $data )
);
$regexp = $parser->getTimestampRegexp( 'en', $format, '\\d', $timezoneAbbrs );
$tsParser = $parser->getTimestampParser( 'en', $format, null, $timezone, $timezoneAbbrs );
$expected = new DateTimeImmutable( $expected );
$expectedUtc = new DateTimeImmutable( $expectedUtc );
preg_match( $regexp, $sample, $match, PREG_OFFSET_CAPTURE );
$date = $tsParser( $match )['date'];
static::assertEquals( $expected, $date, $message );
static::assertEquals( $expectedUtc, $date, $message );
}
public static function provideTimestampParserDST(): array {
return static::getJson( '../cases/timestamp-parser-dst.json' );
}
/**
* @dataProvider provideComments
*/
public function testGetThreads(
string $name, string $title, string $dom, string $expected, string $config, string $data
): void {
$dom = static::getHtml( $dom );
$expectedPath = $expected;
$expected = static::getJson( $expected );
$config = static::getJson( $config );
$data = static::getJson( $data );
$doc = static::createDocument( $dom );
$container = static::getThreadContainer( $doc );
$title = $this->createTitleParser( $config )->parseTitle( $title );
$threadItemSet = $this->createParser( $config, $data )->parse( $container, $title );
$threads = $threadItemSet->getThreads();
$processedThreads = [];
foreach ( $threads as $i => $thread ) {
$thread = static::serializeComments( $thread, $container );
$thread = json_decode( json_encode( $thread ), true );
$processedThreads[] = $thread;
}
// Optionally write updated content to the JSON files
if ( getenv( 'DISCUSSIONTOOLS_OVERWRITE_TESTS' ) ) {
static::overwriteJsonFile( $expectedPath, $processedThreads );
}
foreach ( $threads as $i => $thread ) {
static::assertEquals( $expected[$i], $processedThreads[$i], $name . ' section ' . $i );
}
}
public static function provideComments(): array {
return static::getJson( '../cases/comments.json' );
}
}