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Unified Diff: webrtc/modules/audio_coding/neteq/tick_timer_unittest.cc

Issue 1903043003: WIP: Adding a centralized NetEq Clock (Closed) Base URL: https://chromium.googlesource.com/external/webrtc.git@neteq-remove-type-param
Patch Set: Created 4 years, 8 months ago
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Index: webrtc/modules/audio_coding/neteq/tick_timer_unittest.cc
diff --git a/webrtc/modules/audio_coding/neteq/tick_timer_unittest.cc b/webrtc/modules/audio_coding/neteq/tick_timer_unittest.cc
new file mode 100644
index 0000000000000000000000000000000000000000..9489b061e9a8485b9de19f91794b7d039913d9e0
--- /dev/null
+++ b/webrtc/modules/audio_coding/neteq/tick_timer_unittest.cc
@@ -0,0 +1,111 @@
+/*
+ * Copyright (c) 2016 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 "webrtc/modules/audio_coding/neteq/tick_timer.h"
+
+#include "testing/gmock/include/gmock/gmock.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace webrtc {
+
+TEST(TickTimer, Increment) {
+ TickTimer tt;
+ EXPECT_EQ(0u, tt.ticks());
+ tt.Increment();
+ EXPECT_EQ(1u, tt.ticks());
+
+ for (int i = 0; i < 17; ++i) {
+ tt.Increment();
+ }
+ EXPECT_EQ(18u, tt.ticks());
+
+ tt.Increment(17);
+ EXPECT_EQ(35u, tt.ticks());
+}
+
+TEST(TickTimer, WrapAround) {
+ TickTimer tt;
+ tt.Increment(UINT64_MAX);
+ EXPECT_EQ(UINT64_MAX, tt.ticks());
+ tt.Increment();
+ EXPECT_EQ(0u, tt.ticks());
+}
+
+TEST(TickTimer, Stopwatch) {
+ TickTimer tt;
+ // Increment it a "random" number of steps.
+ tt.Increment(17);
+
+ std::unique_ptr<TickTimer::Stopwatch> sw = tt.GetNewStopwatch();
+ ASSERT_TRUE(sw);
+
+ EXPECT_EQ(0u, sw->ElapsedTicks()); // Starts at zero.
+ EXPECT_EQ(0u, sw->ElapsedMs());
+ tt.Increment();
+ EXPECT_EQ(1u, sw->ElapsedTicks()); // Increases with the TickTimer.
+ EXPECT_EQ(10u, sw->ElapsedMs());
+}
+
+TEST(TickTimer, StopwatchWrapAround) {
+ TickTimer tt;
+ tt.Increment(UINT64_MAX);
+
+ std::unique_ptr<TickTimer::Stopwatch> sw = tt.GetNewStopwatch();
+ ASSERT_TRUE(sw);
+
+ tt.Increment();
+ EXPECT_EQ(0u, tt.ticks());
+ EXPECT_EQ(1u, sw->ElapsedTicks());
+ EXPECT_EQ(10u, sw->ElapsedMs());
+
+ tt.Increment();
+ EXPECT_EQ(1u, tt.ticks());
+ EXPECT_EQ(2u, sw->ElapsedTicks());
+ EXPECT_EQ(20u, sw->ElapsedMs());
+}
+
+TEST(TickTimer, StopwatchMsOverflow) {
+ TickTimer tt;
+ std::unique_ptr<TickTimer::Stopwatch> sw = tt.GetNewStopwatch();
+ ASSERT_TRUE(sw);
+
+ tt.Increment(UINT64_MAX / 10);
+ EXPECT_EQ(UINT64_MAX, sw->ElapsedMs());
+
+ tt.Increment();
+ EXPECT_EQ(UINT64_MAX, sw->ElapsedMs());
+
+ tt.Increment(UINT64_MAX - tt.ticks());
+ EXPECT_EQ(UINT64_MAX, tt.ticks());
+ EXPECT_EQ(UINT64_MAX, sw->ElapsedMs());
+}
+
+TEST(TickTimer, Countdown) {
+ TickTimer tt;
+ // Increment it a "random" number of steps.
+ tt.Increment(4711);
+
+ std::unique_ptr<TickTimer::Countdown> cd = tt.GetNewCountdown(17);
+ ASSERT_TRUE(cd);
+
+ EXPECT_FALSE(cd->Finished());
+ tt.Increment();
+ EXPECT_FALSE(cd->Finished());
+
+ tt.Increment(16); // Total increment is now 17.
+ EXPECT_TRUE(cd->Finished());
+
+ // Further increments does not change the state.
+ tt.Increment();
+ EXPECT_TRUE(cd->Finished());
+ tt.Increment(1234);
+ EXPECT_TRUE(cd->Finished());
+}
+} // namespace webrtc
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