1 files changed, 89 insertions, 0 deletions
diff --git a/gfx/tests/gtest/TestCoord.cpp b/gfx/tests/gtest/TestCoord.cpp
new file mode 100644
index 0000000000..bf44e1bd92
--- /dev/null
+++ b/gfx/tests/gtest/TestCoord.cpp
@@ -0,0 +1,89 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "gtest/gtest.h"
+
+#include "nsCoord.h"
+
+namespace mozilla {
+
+template <typename CoordTyped>
+void TestConstructors() {
+  CoordTyped coord1;
+  EXPECT_EQ(coord1.value, 0);
+
+  CoordTyped coord2 = 6000;
+  EXPECT_EQ(coord2.value, 6000);
+
+  EXPECT_EQ(CoordTyped::FromRound(5.3).value, 5);
+  EXPECT_EQ(CoordTyped::FromRound(5.5).value, 6);
+  EXPECT_EQ(CoordTyped::FromRound(-2.5).value, -2);
+
+  EXPECT_EQ(CoordTyped::FromTruncate(5.9).value, 5);
+  EXPECT_EQ(CoordTyped::FromTruncate(-2.7).value, -2);
+
+  EXPECT_EQ(CoordTyped::FromCeil(5.3).value, 6);
+  EXPECT_EQ(CoordTyped::FromCeil(-2.7).value, -2);
+
+  EXPECT_EQ(CoordTyped::FromFloor(5.9).value, 5);
+  EXPECT_EQ(CoordTyped::FromFloor(-2.7).value, -3);
+}
+
+template <typename CoordTyped>
+void TestComparisonOperators() {
+  CoordTyped coord1 = 6000;
+  CoordTyped coord2 = 10000;
+
+  EXPECT_LT(coord1, CoordTyped::kMax);
+  EXPECT_GT(coord1, CoordTyped::kMin);
+  EXPECT_NE(coord1, coord2);
+}
+
+template <typename CoordTyped>
+void TestArithmeticOperators() {
+  CoordTyped coord1 = 6000;
+  CoordTyped coord2 = 10000;
+
+  EXPECT_EQ(coord1 + coord2, CoordTyped(16000));
+  EXPECT_EQ(coord2 - coord1, CoordTyped(4000));
+
+  decltype(CoordTyped::value) scaleInt = 2;
+  EXPECT_EQ(coord1 * scaleInt, CoordTyped(12000));
+  EXPECT_EQ(coord1 / scaleInt, CoordTyped(3000));
+
+  EXPECT_EQ(coord1 * 2.0, 12000.0);
+  EXPECT_EQ(coord1 / 2.0, 3000.0);
+}
+
+template <typename CoordTyped>
+void TestClamp() {
+  CoordTyped coord1 = CoordTyped::kMax + 1000;
+  EXPECT_EQ(coord1.ToMinMaxClamped(), CoordTyped::kMax);
+
+  CoordTyped coord2 = CoordTyped::kMin - 1000;
+  EXPECT_EQ(coord2.ToMinMaxClamped(), CoordTyped::kMin);
+
+  CoordTyped coord3 = 12000;
+  EXPECT_EQ(coord3.ToMinMaxClamped(), CoordTyped(12000));
+}
+
+TEST(Gfx, TestAuCoord)
+{
+  TestConstructors<AuCoord>();
+  TestComparisonOperators<AuCoord>();
+  TestArithmeticOperators<AuCoord>();
+  TestClamp<AuCoord>();
+}
+
+TEST(Gfx, TestAuCoord64)
+{
+  TestConstructors<AuCoord64>();
+  TestComparisonOperators<AuCoord64>();
+  TestArithmeticOperators<AuCoord64>();
+  TestClamp<AuCoord64>();
+}
+
+}  // namespace mozilla