Add unit tests for FontPlatformData::hasSpaceInLigaturesOrKerning

Source/platform/fonts/TestFontSelector.h

+/*
+ * Copyright (C) 2015 Google Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
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+ * in the documentation and/or other materials provided with the
+ * distribution.
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+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef TestFontSelector_h
+#define TestFontSelector_h
+
+#include "platform/fonts/FontCustomPlatformData.h"
+#include "platform/fonts/FontSelector.h"
+#include "public/platform/Platform.h"
+#include "public/platform/WebUnitTestSupport.h"
+#include "wtf/PassRefPtr.h"
+#include "wtf/RefPtr.h"
+#include "wtf/text/AtomicString.h"
+
+namespace blink {
+
+class TestFontSelector : public FontSelector {
+public:
+    static PassRefPtr<TestFontSelector> create(const String& path)
+    {
+        WebUnitTestSupport* unitTestSupport = Platform::current()->
+            unitTestSupport();
+        RefPtr<SharedBuffer> fontBuffer = static_cast<PassRefPtr<SharedBuffer>>(
+            unitTestSupport->readFromFile(path));
+        String otsParseMessage;
+        return adoptRef(new TestFontSelector(FontCustomPlatformData::create(
+            fontBuffer.get(), otsParseMessage)));
+    }
+
+    ~TestFontSelector() override { }
+
+    PassRefPtr<FontData> getFontData(const FontDescription& fontDescription,
+        const AtomicString& familyName) override
+    {
+        FontPlatformData platformData = m_customPlatformData->fontPlatformData(
+            fontDescription.effectiveFontSize(),
+            fontDescription.isSyntheticBold(),
+            fontDescription.isSyntheticItalic(),
+            fontDescription.orientation());
+        return SimpleFontData::create(platformData, CustomFontData::create());
+    }
+
+    void willUseFontData(const FontDescription&, const AtomicString& familyName,
+        UChar32) override { }
+    unsigned version() const override { return 0; }
+    void fontCacheInvalidated() override { }
+
+private:
+    TestFontSelector(PassOwnPtr<FontCustomPlatformData> customPlatformData)
+    : m_customPlatformData(customPlatformData)
+    {
+    }
+
+    OwnPtr<FontCustomPlatformData> m_customPlatformData;
+};
+
+Font createTestFont(const AtomicString& familyName,
+    const String& fontPath, float size = 16.0f)
+{
+    FontFamily family;
+    family.setFamily(familyName);
+
+    FontDescription fontDescription;
+    fontDescription.setFamily(family);
+    fontDescription.setSpecifiedSize(size);
+    fontDescription.setComputedSize(size);
+
+    Font font(fontDescription);
+    font.update(TestFontSelector::create(fontPath));
+    return font;
+}
+
+} // namespace blink
+
+#endif // TestFontSelector_h