Enable Media condition parsing on the MQ parser

Source/core/css/parser/MediaConditionTest.cpp

+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "config.h"
+
+#include "core/css/MediaList.h"
+#include "core/css/MediaQuery.h"
+#include "core/css/parser/MediaQueryParser.h"
+#include "core/css/parser/MediaQueryTokenizer.h"
+#include "wtf/PassOwnPtr.h"
+#include "wtf/text/StringBuilder.h"
+
+#include <gtest/gtest.h>
+
+namespace WebCore {
+
+typedef struct {
+    const char* input;
+    const char* output;
+} TestCase;
+
+TEST(MediaConditionParserTest, Basic)
+{
+    // The first string represents the input string.
+    // The second string represents the output string, if present.
+    // Otherwise, the output string is identical to the first string.
+    TestCase testCases[] = {
+        {"screen", "not all"},
+        {"screen and (color)", "not all"},
+        {"all and (min-width:500px)", "not all"},
+        {"(min-width:500px)", "(min-width: 500px)"},
+        {"screen and (color), projection and (color)", "not all"},
+        {"(min-width: -100px)", "not all"},
+        {"(min-width: 100px) and print", "not all"},
+        {"(min-width: 100px) and (max-width: 900px)", "(max-width: 900px) and (min-width: 100px)"},
+        {"(min-width: [100px) and (max-width: 900px)", "not all"},
+        {0, 0} // Do not remove the terminator line.
+    };
+
+    for (unsigned i = 0; testCases[i].input; ++i) {
+        Vector<MediaQueryToken> tokens;
+        MediaQueryTokenizer::tokenize(testCases[i].input, tokens);
+        MediaQueryParser::TokenIterator endToken;
+        // Stop the input once we hit a comma token
+        for (endToken = tokens.begin(); endToken != tokens.end() && endToken->type() != CommaToken; ++endToken) { }
+        RefPtrWillBeRawPtr<MediaQuerySet> mediaConditionQuerySet = MediaQueryParser::parseMediaCondition(tokens.begin(), endToken);
+        ASSERT_EQ(mediaConditionQuerySet->queryVector().size(), (unsigned)1);
+        String queryText = mediaConditionQuerySet->queryVector()[0]->cssText();
+        ASSERT_STREQ(testCases[i].output, queryText.ascii().data());
+    }
+}
+
+} // namespace