1 files changed, 50 insertions, 0 deletions
diff --git a/third_party/libwebrtc/net/dcsctp/public/types_test.cc b/third_party/libwebrtc/net/dcsctp/public/types_test.cc
new file mode 100644
index 0000000000..d3d1240751
--- /dev/null
+++ b/third_party/libwebrtc/net/dcsctp/public/types_test.cc
@@ -0,0 +1,50 @@
+/*
+ *  Copyright (c) 2021 The WebRTC 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 in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+#include "net/dcsctp/public/types.h"
+
+#include "rtc_base/gunit.h"
+#include "test/gmock.h"
+
+namespace dcsctp {
+namespace {
+
+TEST(TypesTest, DurationOperators) {
+  DurationMs d1(10);
+  DurationMs d2(25);
+  EXPECT_EQ(d1 + d2, DurationMs(35));
+  EXPECT_EQ(d2 - d1, DurationMs(15));
+
+  d1 += d2;
+  EXPECT_EQ(d1, DurationMs(35));
+
+  d1 -= DurationMs(5);
+  EXPECT_EQ(d1, DurationMs(30));
+
+  d1 *= 1.5;
+  EXPECT_EQ(d1, DurationMs(45));
+
+  EXPECT_EQ(DurationMs(10) * 2, DurationMs(20));
+}
+
+TEST(TypesTest, TimeOperators) {
+  EXPECT_EQ(TimeMs(250) + DurationMs(100), TimeMs(350));
+  EXPECT_EQ(DurationMs(250) + TimeMs(100), TimeMs(350));
+  EXPECT_EQ(TimeMs(250) - DurationMs(100), TimeMs(150));
+  EXPECT_EQ(TimeMs(250) - TimeMs(100), DurationMs(150));
+
+  TimeMs t1(150);
+  t1 -= DurationMs(50);
+  EXPECT_EQ(t1, TimeMs(100));
+  t1 += DurationMs(200);
+  EXPECT_EQ(t1, TimeMs(300));
+}
+
+}  // namespace
+}  // namespace dcsctp