A sizes attribute parser

Source/core/css/parser/SizesAttributeParserTest.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/parser/SizesAttributeParser.h"
+
+#include "core/css/MediaValuesCached.h"
+
+#include <gtest/gtest.h>
+
+namespace WebCore {
+
+typedef struct {
+    const char* input;
+    const int output;
+} TestCase;
+
+TEST(SizesAttributeParserTest, 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", 500},
+        {"(min-width:500px)", 500},
+        {"(min-width:500px) 200px", 200},
+        {"(min-width:500px) 50vw", 250},
+        {"(min-width:500px) 200px, 400px", 200},
+        {"400px, (min-width:500px) 200px", 400},
+        {"(min-width:5000px) 200px, 400px", 400},
+        {"(blalbadfsdf) 200px, 400px", 400},
+        {"0", 500},
+        {"-0", 500},
+        {"1", 500},
+        {"300px, 400px", 300},
+        {"(min-width:5000px) 200px, (min-width:500px) 400px", 400},
+        {"", 500},
+        {" /**/ ", 500},
+        {" /**/ 300px", 300},
+        {"300px /**/ ", 300},
+        {" /**/ (min-width:500px) /**/ 300px", 300},
+        {"-100px, 200px", 200},
+        {"-50vw, 20vw", 100},
+        {"50asdf, 200px", 200},
+        {"asdf, 200px", 200},
+        {"(max-width: 3000px) 200w, 400w", 500},
+        {",, , /**/ ,200px", 200},
+        // FIXME - test all other units and calc().
+        {0, 0} // Do not remove the terminator line.
+    };
+
+    MediaValues::MediaValuesInitializer initializer;
+    initializer.viewportWidth = 500;
+    initializer.viewportHeight = 500;
+    initializer.deviceWidth = 500;
+    initializer.deviceHeight = 500;
+    initializer.devicePixelRatio = 2.0;
+    initializer.colorBitsPerComponent = 24;
+    initializer.monochromeBitsPerComponent = 0;
+    initializer.pointer = MediaValues::MousePointer;
+    initializer.defaultFontSize = 16;
+    initializer.computedFontSize = 16;
+    initializer.hasXHeight = true;
+    initializer.xHeight = 16;
+    initializer.zeroWidth = 16;
+    initializer.threeDEnabled = true;
+    initializer.scanMediaType = false;
+    initializer.screenMediaType = true;
+    initializer.printMediaType = false;
+    initializer.strictMode = true;
+    RefPtr<MediaValues> mediaValues = MediaValuesCached::create(initializer);
+
+    for (unsigned i = 0; testCases[i].input; ++i) {
+        int effectiveSize = SizesAttributeParser::findEffectiveSize(testCases[i].input, mediaValues);
+        ASSERT_EQ(testCases[i].output, effectiveSize);
+    }
+}
+
+} // namespace