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diff --git a/Tools/TestWebKitAPI/Tests/WebCore/ParsedContentRange.cpp b/Tools/TestWebKitAPI/Tests/WebCore/ParsedContentRange.cpp
new file mode 100644
index 000000000..986388302
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+++ b/Tools/TestWebKitAPI/Tests/WebCore/ParsedContentRange.cpp
@@ -0,0 +1,98 @@
+/*
+ * 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 <WebCore/ParsedContentRange.h>
+#include <wtf/text/WTFString.h>
+
+using namespace WebCore;
+
+namespace TestWebKitAPI {
+
+TEST(WebCore, ParsedContentRangeFromString)
+{
+    // Basic parsing
+    ASSERT_TRUE(ParsedContentRange("bytes 0-1/2").isValid());
+    ASSERT_TRUE(ParsedContentRange("bytes 0-1/*").isValid());
+    ASSERT_EQ(0, ParsedContentRange("bytes 0-1/2").firstBytePosition());
+    ASSERT_EQ(1, ParsedContentRange("bytes 0-1/2").lastBytePosition());
+    ASSERT_EQ(2, ParsedContentRange("bytes 0-1/2").instanceLength());
+    ASSERT_EQ(ParsedContentRange::UnknownLength, ParsedContentRange("bytes 0-1/*").instanceLength());
+
+    // Whitespace errors
+    ASSERT_FALSE(ParsedContentRange("bytes  0-1/*").isValid());
+    ASSERT_FALSE(ParsedContentRange("bytes 0 -1/*").isValid());
+    ASSERT_FALSE(ParsedContentRange("bytes 0- 1/*").isValid());
+    ASSERT_FALSE(ParsedContentRange("bytes 0-1 /*").isValid());
+    ASSERT_FALSE(ParsedContentRange("bytes 0-1/ *").isValid());
+    ASSERT_FALSE(ParsedContentRange("bytes 0-1/* ").isValid());
+    ASSERT_FALSE(ParsedContentRange("bytes 0-1/ 2").isValid());
+    ASSERT_FALSE(ParsedContentRange("bytes 0-1/2 ").isValid());
+
+    // Non-digit errors
+    ASSERT_FALSE(ParsedContentRange("bytes abcd-1/2").isValid());
+    ASSERT_FALSE(ParsedContentRange("bytes 0-abcd/2").isValid());
+    ASSERT_FALSE(ParsedContentRange("bytes 0-1/abcd").isValid());
+
+    // Range requirement errors
+    ASSERT_FALSE(ParsedContentRange("bytes 1-0/2").isValid());
+    ASSERT_FALSE(ParsedContentRange("bytes 0-2/1").isValid());
+    ASSERT_FALSE(ParsedContentRange("bytes 2/0-1").isValid());
+    ASSERT_FALSE(ParsedContentRange("abcd 0/1-2").isValid());
+
+    // Negative value errors
+    ASSERT_FALSE(ParsedContentRange("bytes -0-1/*").isValid());
+    ASSERT_FALSE(ParsedContentRange("bytes -1/*").isValid());
+    ASSERT_FALSE(ParsedContentRange("bytes 0--0/2").isValid());
+    ASSERT_FALSE(ParsedContentRange("bytes 0-1/-2").isValid());
+
+    // Edge cases
+    ASSERT_TRUE(ParsedContentRange("bytes 9223372036854775805-9223372036854775806/9223372036854775807").isValid());
+    ASSERT_FALSE(ParsedContentRange("bytes 9223372036854775808-9223372036854775809/9223372036854775810").isValid());
+}
+
+TEST(WebCore, ParsedContentRangeFromValues)
+{
+    ASSERT_TRUE(ParsedContentRange(0, 1, 2).isValid());
+    ASSERT_TRUE(ParsedContentRange(0, 1, ParsedContentRange::UnknownLength).isValid());
+    ASSERT_FALSE(ParsedContentRange().isValid());
+    ASSERT_FALSE(ParsedContentRange(1, 0, 2).isValid());
+    ASSERT_FALSE(ParsedContentRange(0, 2, 1).isValid());
+    ASSERT_FALSE(ParsedContentRange(0, 0, 0).isValid());
+    ASSERT_FALSE(ParsedContentRange(-1, 1, 2).isValid());
+    ASSERT_FALSE(ParsedContentRange(0, -1, 2).isValid());
+    ASSERT_FALSE(ParsedContentRange(0, 1, -2).isValid());
+    ASSERT_FALSE(ParsedContentRange(-2, -1, 2).isValid());
+}
+
+TEST(WebCore, ParsedContentRangeToString)
+{
+    ASSERT_STREQ("bytes 0-1/2", ParsedContentRange(0, 1, 2).headerValue().utf8().data());
+    ASSERT_STREQ("bytes 0-1/*", ParsedContentRange(0, 1, ParsedContentRange::UnknownLength).headerValue().utf8().data());
+    ASSERT_STREQ("", ParsedContentRange().headerValue().utf8().data());
+}
+
+}