1 files changed, 146 insertions, 0 deletions
diff --git a/Tools/TestWebKitAPI/Tests/WTF/TextBreakIterator.cpp b/Tools/TestWebKitAPI/Tests/WTF/TextBreakIterator.cpp
new file mode 100644
index 000000000..c2f84e3d7
--- /dev/null
+++ b/Tools/TestWebKitAPI/Tests/WTF/TextBreakIterator.cpp
@@ -0,0 +1,146 @@
+/*
+ * Copyright (C) 2016 Apple 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:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+ * THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "config.h"
+
+#include <wtf/text/TextBreakIterator.h>
+
+namespace TestWebKitAPI {
+
+static String makeUTF16(std::vector<UChar> input)
+{
+    return { input.data(), static_cast<unsigned>(input.size()) };
+}
+
+TEST(WTF, TextBreakIteratorNumGraphemeClusters)
+{
+    EXPECT_EQ(0U, numGraphemeClusters(StringView { }));
+    EXPECT_EQ(0U, numGraphemeClusters(StringView { "" }));
+    EXPECT_EQ(0U, numGraphemeClusters(makeUTF16({ })));
+
+    EXPECT_EQ(1U, numGraphemeClusters(StringView { "a" }));
+    EXPECT_EQ(1U, numGraphemeClusters(makeUTF16({ 'a' })));
+    EXPECT_EQ(1U, numGraphemeClusters(StringView { "\r\n" }));
+    EXPECT_EQ(1U, numGraphemeClusters(StringView { "\n" }));
+    EXPECT_EQ(1U, numGraphemeClusters(StringView { "\r" }));
+    EXPECT_EQ(1U, numGraphemeClusters(makeUTF16({ '\r', '\n' })));
+    EXPECT_EQ(1U, numGraphemeClusters(makeUTF16({ '\n' })));
+    EXPECT_EQ(1U, numGraphemeClusters(makeUTF16({ '\r' })));
+
+    EXPECT_EQ(2U, numGraphemeClusters(StringView { "\n\r" }));
+    EXPECT_EQ(2U, numGraphemeClusters(makeUTF16({ '\n', '\r' })));
+
+    EXPECT_EQ(2U, numGraphemeClusters(StringView { "\r\n\r" }));
+    EXPECT_EQ(2U, numGraphemeClusters(makeUTF16({ '\r', '\n', '\r' })));
+
+    EXPECT_EQ(1U, numGraphemeClusters(makeUTF16({ 'g', 0x308 })));
+    EXPECT_EQ(1U, numGraphemeClusters(makeUTF16({ 0x1100, 0x1161, 0x11A8 })));
+    EXPECT_EQ(1U, numGraphemeClusters(makeUTF16({ 0x0BA8, 0x0BBF })));
+
+    EXPECT_EQ(2U, numGraphemeClusters(makeUTF16({ 0x308, 'g' })));
+
+    EXPECT_EQ(3U, numGraphemeClusters(StringView { "\r\nbc" }));
+    EXPECT_EQ(3U, numGraphemeClusters(makeUTF16({ 'g', 0x308, 'b', 'c' })));
+}
+
+TEST(WTF, TextBreakIteratorNumCharactersInGraphemeClusters)
+{
+    EXPECT_EQ(0U, numCharactersInGraphemeClusters(StringView { }, 0));
+    EXPECT_EQ(0U, numCharactersInGraphemeClusters(StringView { }, 1));
+
+    EXPECT_EQ(0U, numCharactersInGraphemeClusters(StringView { "" }, 0));
+    EXPECT_EQ(0U, numCharactersInGraphemeClusters(StringView { "" }, 1));
+
+    EXPECT_EQ(0U, numCharactersInGraphemeClusters(makeUTF16({ }), 0));
+    EXPECT_EQ(0U, numCharactersInGraphemeClusters(makeUTF16({ }), 1));
+
+    EXPECT_EQ(1U, numCharactersInGraphemeClusters(StringView { "a" }, 1));
+    EXPECT_EQ(1U, numCharactersInGraphemeClusters(makeUTF16({ 'a' }), 1));
+    EXPECT_EQ(1U, numCharactersInGraphemeClusters(StringView { "\n" }, 1));
+    EXPECT_EQ(1U, numCharactersInGraphemeClusters(StringView { "\r" }, 1));
+    EXPECT_EQ(1U, numCharactersInGraphemeClusters(makeUTF16({ '\n' }), 1));
+    EXPECT_EQ(1U, numCharactersInGraphemeClusters(makeUTF16({ '\r' }), 1));
+
+    EXPECT_EQ(0U, numCharactersInGraphemeClusters(StringView { "abc" }, 0));
+    EXPECT_EQ(1U, numCharactersInGraphemeClusters(StringView { "abc" }, 1));
+    EXPECT_EQ(2U, numCharactersInGraphemeClusters(StringView { "abc" }, 2));
+    EXPECT_EQ(3U, numCharactersInGraphemeClusters(StringView { "abc" }, 3));
+    EXPECT_EQ(3U, numCharactersInGraphemeClusters(StringView { "abc" }, 4));
+
+    EXPECT_EQ(0U, numCharactersInGraphemeClusters(makeUTF16({ 'a', 'b', 'c' }), 0));
+    EXPECT_EQ(1U, numCharactersInGraphemeClusters(makeUTF16({ 'a', 'b', 'c' }), 1));
+    EXPECT_EQ(2U, numCharactersInGraphemeClusters(makeUTF16({ 'a', 'b', 'c' }), 2));
+    EXPECT_EQ(3U, numCharactersInGraphemeClusters(makeUTF16({ 'a', 'b', 'c' }), 3));
+    EXPECT_EQ(3U, numCharactersInGraphemeClusters(makeUTF16({ 'a', 'b', 'c' }), 4));
+
+    EXPECT_EQ(0U, numCharactersInGraphemeClusters(StringView { "\r\n" }, 0));
+    EXPECT_EQ(2U, numCharactersInGraphemeClusters(StringView { "\r\n" }, 1));
+    EXPECT_EQ(2U, numCharactersInGraphemeClusters(StringView { "\r\n" }, 2));
+    EXPECT_EQ(2U, numCharactersInGraphemeClusters(StringView { "\r\n" }, 3));
+
+    EXPECT_EQ(0U, numCharactersInGraphemeClusters(makeUTF16({ '\r', '\n' }), 0));
+    EXPECT_EQ(2U, numCharactersInGraphemeClusters(makeUTF16({ '\r', '\n' }), 1));
+    EXPECT_EQ(2U, numCharactersInGraphemeClusters(makeUTF16({ '\r', '\n' }), 2));
+    EXPECT_EQ(2U, numCharactersInGraphemeClusters(makeUTF16({ '\r', '\n' }), 3));
+
+    EXPECT_EQ(0U, numCharactersInGraphemeClusters(StringView { "\n\r" }, 0));
+    EXPECT_EQ(1U, numCharactersInGraphemeClusters(StringView { "\n\r" }, 1));
+    EXPECT_EQ(2U, numCharactersInGraphemeClusters(StringView { "\n\r" }, 2));
+
+    EXPECT_EQ(1U, numCharactersInGraphemeClusters(makeUTF16({ '\n', '\r' }), 1));
+    EXPECT_EQ(2U, numCharactersInGraphemeClusters(makeUTF16({ '\n', '\r' }), 2));
+
+    EXPECT_EQ(0U, numCharactersInGraphemeClusters(StringView { "\r\n\r" }, 0));
+    EXPECT_EQ(2U, numCharactersInGraphemeClusters(StringView { "\r\n\r" }, 1));
+    EXPECT_EQ(3U, numCharactersInGraphemeClusters(StringView { "\r\n\r" }, 2));
+    EXPECT_EQ(3U, numCharactersInGraphemeClusters(StringView { "\r\n\r" }, 3));
+
+    EXPECT_EQ(0U, numCharactersInGraphemeClusters(makeUTF16({ '\r', '\n', '\r' }), 0));
+    EXPECT_EQ(2U, numCharactersInGraphemeClusters(makeUTF16({ '\r', '\n', '\r' }), 1));
+    EXPECT_EQ(3U, numCharactersInGraphemeClusters(makeUTF16({ '\r', '\n', '\r' }), 2));
+    EXPECT_EQ(3U, numCharactersInGraphemeClusters(makeUTF16({ '\r', '\n', '\r' }), 3));
+
+    EXPECT_EQ(2U, numCharactersInGraphemeClusters(makeUTF16({ 'g', 0x308 }), 1));
+    EXPECT_EQ(3U, numCharactersInGraphemeClusters(makeUTF16({ 0x1100, 0x1161, 0x11A8 }), 1));
+    EXPECT_EQ(2U, numCharactersInGraphemeClusters(makeUTF16({ 0x0BA8, 0x0BBF }), 1));
+
+    EXPECT_EQ(1U, numCharactersInGraphemeClusters(makeUTF16({ 0x308, 'g' }), 1));
+
+    EXPECT_EQ(0U, numCharactersInGraphemeClusters(StringView { "\r\nbc" }, 0));
+    EXPECT_EQ(2U, numCharactersInGraphemeClusters(StringView { "\r\nbc" }, 1));
+    EXPECT_EQ(3U, numCharactersInGraphemeClusters(StringView { "\r\nbc" }, 2));
+    EXPECT_EQ(4U, numCharactersInGraphemeClusters(StringView { "\r\nbc" }, 3));
+    EXPECT_EQ(4U, numCharactersInGraphemeClusters(StringView { "\r\nbc" }, 4));
+    EXPECT_EQ(4U, numCharactersInGraphemeClusters(StringView { "\r\nbc" }, 5));
+
+    EXPECT_EQ(0U, numCharactersInGraphemeClusters(makeUTF16({ 'g', 0x308, 'b', 'c' }), 0));
+    EXPECT_EQ(2U, numCharactersInGraphemeClusters(makeUTF16({ 'g', 0x308, 'b', 'c' }), 1));
+    EXPECT_EQ(3U, numCharactersInGraphemeClusters(makeUTF16({ 'g', 0x308, 'b', 'c' }), 2));
+    EXPECT_EQ(4U, numCharactersInGraphemeClusters(makeUTF16({ 'g', 0x308, 'b', 'c' }), 3));
+    EXPECT_EQ(4U, numCharactersInGraphemeClusters(makeUTF16({ 'g', 0x308, 'b', 'c' }), 4));
+    EXPECT_EQ(4U, numCharactersInGraphemeClusters(makeUTF16({ 'g', 0x308, 'b', 'c' }), 5));
+}
+
+} // namespace TestWebKitAPI