1 files changed, 47 insertions, 0 deletions
diff --git a/gfx/angle/src/common/Optional_unittest.cpp b/gfx/angle/src/common/Optional_unittest.cpp
new file mode 100755
index 000000000..810046184
--- /dev/null
+++ b/gfx/angle/src/common/Optional_unittest.cpp
@@ -0,0 +1,47 @@
+//
+// Copyright (c) 2015 The ANGLE Project Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+//
+// Unit tests for ANGLE's Optional helper class.
+//
+
+#include "gmock/gmock.h"
+#include "gtest/gtest.h"
+
+#include "common/Optional.h"
+
+namespace
+{
+
+TEST(OptionalTest, BasicInvalid)
+{
+    Optional<int> testInvalid;
+    ASSERT_FALSE(testInvalid.valid());
+    ASSERT_EQ(Optional<int>::Invalid(), testInvalid);
+}
+
+TEST(OptionalTest, BasicValid)
+{
+    Optional<int> testValid(3);
+    ASSERT_TRUE(testValid.valid());
+    ASSERT_EQ(3, testValid.value());
+    ASSERT_NE(Optional<int>::Invalid(), testValid);
+}
+
+TEST(OptionalTest, Copies)
+{
+    Optional<int> testValid(3);
+    Optional<int> testInvalid;
+
+    Optional<int> testCopy = testInvalid;
+    ASSERT_FALSE(testCopy.valid());
+    ASSERT_EQ(testInvalid, testCopy);
+
+    testCopy = testValid;
+    ASSERT_TRUE(testCopy.valid());
+    ASSERT_EQ(3, testCopy.value());
+    ASSERT_EQ(testValid, testCopy);
+}
+
+} // namespace