Add Hyphenation class

third_party/WebKit/Source/platform/text/HyphenationTest.cpp

+// Copyright 2016 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 "platform/text/Hyphenation.h"
+
+#include "platform/Logging.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace blink {
+
+class NoHyphenation : public Hyphenation {
+public:
+    size_t lastHyphenLocation(const StringView&, size_t beforeIndex, const AtomicString& locale) const override
+    {
+        return 0;
+    }
+};
+
+TEST(HyphenationTest, GetHyphenation)
+{
+    RefPtr<Hyphenation> hyphenation = adoptRef(new NoHyphenation);
+    Hyphenation::setForTesting("en-US", hyphenation);
+    EXPECT_EQ(hyphenation.get(), Hyphenation::get("en-US"));
+
+    Hyphenation::setForTesting("en-UK", nullptr);
+    EXPECT_EQ(nullptr, Hyphenation::get("en-UK"));
+
+    Hyphenation::clearForTesting();
+}
+
+TEST(HyphenationTest, GetHyphenationCaseFolding)
+{
+    RefPtr<Hyphenation> hyphenation = adoptRef(new NoHyphenation);
+    Hyphenation::setForTesting("en-US", hyphenation);
+    EXPECT_EQ(hyphenation, Hyphenation::get("en-US"));
+    EXPECT_EQ(hyphenation, Hyphenation::get("en-us"));
+
+    Hyphenation::clearForTesting();
+}
+
+} // namespace blink