PhabricatorDiffScopeEngineTestCase.php
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	<?php

	final class PhabricatorDiffScopeEngineTestCase
	extends PhabricatorTestCase {

	private $engines = array();

	public function testScopeEngine() {
	$this->assertScopeStart('zebra.c', 4, 2);
	}

	private function assertScopeStart($file, $line, $expect) {
	$engine = $this->getScopeTestEngine($file);

	$actual = $engine->getScopeStart($line);
	$this->assertEqual(
	$expect,
	$actual,
	pht(
	'Expect scope for line %s to start on line %s (actual: %s) in "%s".',
	$line,
	$expect,
	$actual,
	$file));
	}

	private function getScopeTestEngine($file) {
	if (!isset($this->engines[$file])) {
	$this->engines[$file] = $this->newScopeTestEngine($file);
	}

	return $this->engines[$file];
	}

	private function newScopeTestEngine($file) {
	$path = dirname(__FILE__).'/data/'.$file;
	$data = Filesystem::readFile($path);

	$lines = phutil_split_lines($data);
	$map = array();
	foreach ($lines as $key => $line) {
	$map[$key + 1] = $line;
	}

	$engine = id(new PhabricatorDiffScopeEngine())
	->setLineTextMap($map);

	return $engine;
	}

	}