DifferentialParseRenderTestCase.php
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	<?php

	final class DifferentialParseRenderTestCase extends PhabricatorTestCase {

	private function getTestDataDirectory() {
	return dirname(__FILE__).'/data/';
	}

	public function testParseRender() {
	$dir = $this->getTestDataDirectory();
	foreach (Filesystem::listDirectory($dir, $show_hidden = false) as $file) {
	if (!preg_match('/\.diff$/', $file)) {
	continue;
	}
	$data = Filesystem::readFile($dir.$file);

	// Strip trailing "~" characters from inputs so they may contain
	// trailing whitespace.
	$data = preg_replace('/~$/m', '', $data);

	$opt_file = $dir.$file.'.options';
	if (Filesystem::pathExists($opt_file)) {
	$options = Filesystem::readFile($opt_file);
	try {
	$options = phutil_json_decode($options);
	} catch (PhutilJSONParserException $ex) {
	throw new PhutilProxyException(
	pht('Invalid options file: %s.', $opt_file),
	$ex);
	}
	} else {
	$options = array();
	}

	foreach (array('one', 'two') as $type) {
	$this->runParser($type, $data, $file, 'expect');
	$this->runParser($type, $data, $file, 'unshielded');
	}
	}
	}

	private function runParser($type, $data, $file, $extension) {
	$dir = $this->getTestDataDirectory();
	$test_file = $dir.$file.'.'.$type.'.'.$extension;
	if (!Filesystem::pathExists($test_file)) {
	return;
	}

	$unshielded = false;
	switch ($extension) {
	case 'unshielded':
	$unshielded = true;
	break;
	}

	$parsers = $this->buildChangesetParsers($type, $data, $file);
	$actual = $this->renderParsers($parsers, $unshielded);
	$expect = Filesystem::readFile($test_file);

	$this->assertEqual($expect, $actual, basename($test_file));
	}

	private function renderParsers(array $parsers, $unshield) {
	$result = array();
	foreach ($parsers as $parser) {
	if ($unshield) {
	$s_range = 0;
	$e_range = 0xFFFF;
	} else {
	$s_range = null;
	$e_range = null;
	}

	$result[] = $parser->render($s_range, $e_range, array());
	}
	return implode(str_repeat('~', 80)."\n", $result);
	}

	private function buildChangesetParsers($type, $data, $file) {
	$parser = new ArcanistDiffParser();
	$changes = $parser->parseDiff($data);

	$diff = DifferentialDiff::newFromRawChanges(
	PhabricatorUser::getOmnipotentUser(),
	$changes);

	$changesets = $diff->getChangesets();

	$engine = new PhabricatorMarkupEngine();
	$engine->setViewer(new PhabricatorUser());

	$viewstate = new PhabricatorChangesetViewState();

	$parsers = array();
	foreach ($changesets as $changeset) {
	$cparser = id(new DifferentialChangesetParser())
	->setViewer(new PhabricatorUser())
	->setDisableCache(true)
	->setChangeset($changeset)
	->setMarkupEngine($engine)
	->setViewState($viewstate);

	if ($type == 'one') {
	$cparser->setRenderer(new DifferentialChangesetOneUpTestRenderer());
	} else if ($type == 'two') {
	$cparser->setRenderer(new DifferentialChangesetTwoUpTestRenderer());
	} else {
	throw new Exception(pht('Unknown renderer type "%s"!', $type));
	}

	$parsers[] = $cparser;
	}

	return $parsers;
	}

	}

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