Avoid rounding down viewport dimensions in Media Queries

third_party/WebKit/Source/core/css/MediaQueryEvaluatorTest.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/MediaQueryEvaluator.h"
 
 #include "core/MediaTypeNames.h"
 #include "core/css/MediaList.h"
 #include "core/css/MediaValuesCached.h"
@@ skipping 74 matching lines @@
     {"(height: 500.001px)", 0},
     {"(height: 499.999px)", 0},
     {"(height: 501px)", 0},
     {"(height)", 1},
     {"(width)", 1},
     {"(width: whatisthis)", 0},
     {"screen and (min-width: 400px) and (max-width: 700px)", 1},
     {0, 0} // Do not remove the terminator line.
 };
 
+TestCase floatViewportTestCases[] = {
+    {"all and (min-width: 600.5px)", 1},
+    {"(min-width: 600px)", 1},
+    {"(min-width: 600.5px)", 1},
+    {"(min-width: 601px)", 0},
+    {"(max-width: 600px)", 0},
+    {"(max-width: 600.5px)", 1},
+    {"(max-width: 601px)", 1},
+    {"(width: 600.5px)", 1},
+    {"(width: 601px)", 0},
+    {"(min-height: 700px)", 1},
+    {"(min-height: 700.125px)", 1},
+    {"(min-height: 701px)", 0},
+    {"(min-height: 700.126px)", 0},
+    {"(max-height: 701px)", 1},
+    {"(max-height: 700.125px)", 1},
+    {"(max-height: 700px)", 0},
+    {"(height: 700.125px)", 1},
+    {"(height: 700.126px)", 0},
+    {"(height: 700.124px)", 0},
+    {"(height: 701px)", 0},
+    {0, 0} // Do not remove the terminator line.
+};
+
 TestCase printTestCases[] = {
     {"print and (min-resolution: 1dppx)", 1},
     {"print and (min-resolution: 118dpcm)", 1},
     {"print and (min-resolution: 119dpcm)", 0},
     {0, 0} // Do not remove the terminator line.
 };
 
 void testMQEvaluator(TestCase* testCases, const MediaQueryEvaluator& mediaQueryEvaluator)
 {
     RefPtrWillBePersistent<MediaQuerySet> querySet = nullptr;
@@ skipping 47 matching lines @@
 {
     OwnPtr<DummyPageHolder> pageHolder = DummyPageHolder::create(IntSize(500, 500));
     RefPtrWillBeRawPtr<LocalFrame> frame = &pageHolder->frame();
     pageHolder.clear();
     ASSERT_EQ(nullptr, frame->view());
     MediaQueryEvaluator mediaQueryEvaluator(frame.get());
     RefPtrWillBeRawPtr<MediaQuerySet> querySet = MediaQuerySet::create("foobar");
     EXPECT_FALSE(mediaQueryEvaluator.eval(querySet.get()));
 }
 
+TEST(MediaQueryEvaluatorTest, CachedFloatViewport)
+{
+    MediaValuesCached::MediaValuesCachedData data;
+    data.viewportWidth = 600.5;
+    data.viewportHeight = 700.125;
+    RefPtrWillBeRawPtr<MediaValues> mediaValues = MediaValuesCached::create(data);
+
+    MediaQueryEvaluator mediaQueryEvaluator(*mediaValues);
+    testMQEvaluator(floatViewportTestCases, mediaQueryEvaluator);
+}
+
 } // namespace