added unit test facility.

fixed occurence of !important without ending semicolon (if last rule)

closes issue #2

CSSParser.php

@@ -209,9 +209,9 @@ private function parseRule() {
 		if($this->comes('!')) {
 			$this->consume('!');
 			$this->consumeWhiteSpace();
-			$sImportantMarker = $this->consumeUntil(';');
+			$sImportantMarker = $this->consume(strlen('important'));
 			if(mb_convert_case($sImportantMarker, MB_CASE_LOWER) !== 'important') {
-				throw new Exception("! was not followed by “important”");
+				throw new Exception("! was followed by “".$sImportantMarker."”. Expected “important”");
 			}
 			$oRule->setIsImportant(true);
 		}

tests/CSSParserTests.php

@@ -0,0 +1,28 @@
+<?php
+
+require_once('CSSParser.php');
+
+class CSSParserTests extends PHPUnit_Framework_TestCase {
+	function testCssFiles() {
+
+		$sDirectory = dirname(__FILE__).DIRECTORY_SEPARATOR.'files';
+		if($rHandle = opendir($sDirectory)) {
+			/* This is the correct way to loop over the directory. */
+			while (false !== ($sFileName = readdir($rHandle))) {
+				if(strpos($sFileName, '.') === 0) {
+					continue;
+				}
+				if(strrpos($sFileName, '.css') !== strlen($sFileName)-strlen('.css')) {
+					continue;
+				}
+				$oParser = new CSSParser(file_get_contents($sDirectory.DIRECTORY_SEPARATOR.$sFileName));
+				try {
+					$oParser->parse();
+				} catch(Exception $e) {
+					$this->fail($e);
+				}
+			}
+			closedir($rHandle);
+		}
+	}
+}

tests/files/important.css

@@ -0,0 +1,8 @@
+div.rating-cancel,div.star-rating{float:left;width:17px;height:15px;text-indent:-999em;cursor:pointer;display:block;background:transparent;overflow:hidden}
+div.rating-cancel,div.rating-cancel a{background:url(images/delete.gif) no-repeat 0 -16px}
+div.star-rating,div.star-rating a{background:url(images/star.gif) no-repeat 0 0px}
+div.rating-cancel a,div.star-rating a{display:block;width:16px;height:100%;background-position:0 0px;border:0}
+div.star-rating-on a{background-position:0 -16px!important}
+div.star-rating-hover a{background-position:0 -32px}
+div.star-rating-readonly a{cursor:default !important}
+div.star-rating{background:transparent!important; overflow:hidden!important}