1 files changed, 43 insertions, 0 deletions
diff --git a/ui/base/range/range_mac_unittest.mm b/ui/base/range/range_mac_unittest.mm
new file mode 100644
index 0000000..3142540
--- /dev/null
+++ b/ui/base/range/range_mac_unittest.mm
@@ -0,0 +1,43 @@
+// Copyright (c) 2011 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 "testing/gtest/include/gtest/gtest.h"
+#include "ui/base/range/range.h"
+
+TEST(RangeTest, FromNSRange) {
+  NSRange nsr = NSMakeRange(10, 3);
+  ui::Range r(nsr);
+  EXPECT_EQ(nsr.location, r.start());
+  EXPECT_EQ(13U, r.end());
+  EXPECT_EQ(nsr.length, r.length());
+  EXPECT_FALSE(r.is_reversed());
+  EXPECT_TRUE(r.IsValid());
+}
+
+TEST(RangeTest, ToNSRange) {
+  ui::Range r(10, 12);
+  NSRange nsr = r.ToNSRange();
+  EXPECT_EQ(10U, nsr.location);
+  EXPECT_EQ(2U, nsr.length);
+}
+
+TEST(RangeTest, ReversedToNSRange) {
+  ui::Range r(20, 10);
+  NSRange nsr = r.ToNSRange();
+  EXPECT_EQ(10U, nsr.location);
+  EXPECT_EQ(10U, nsr.length);
+}
+
+TEST(RangeTest, FromNSRangeInvalid) {
+  NSRange nsr = NSMakeRange(NSNotFound, 0);
+  ui::Range r(nsr);
+  EXPECT_FALSE(r.IsValid());
+}
+
+TEST(RangeTest, ToNSRangeInvalid) {
+  ui::Range r(ui::Range::InvalidRange());
+  NSRange nsr = r.ToNSRange();
+  EXPECT_EQ(NSNotFound, nsr.location);
+  EXPECT_EQ(0U, nsr.length);
+}