webrtc/api/neteq/tick_timer_unittest.cc
Dor Hen aefed55c25 [iwyu][1\n] Applying to api/[a-s]*
First batch of applying iwyu to the repo.
Done with:
> ./tools_webrtc/iwyu/apply-iwyu api
> git add api/[a-s]*
> python3 gn_autodeps.py ~/local/webrtc/src out/Default

Last step is a custom script I wrote to automatically apply new required
dependencies for target in gn, which saved tons of time manually going
over the files and fixing.
If this is something that interest others, I can submit it as well.

Bug: webrtc:42226242
Change-Id: Id109e77f50835827495bc4512880c4ec9ae175f6
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/343680
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Commit-Queue: Dor Hen <dorhen@meta.com>
Cr-Commit-Position: refs/heads/main@{#42512}
2024-06-19 06:19:20 +00:00

135 lines
3.2 KiB
C++

/*
* 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 "api/neteq/tick_timer.h"
#include <cstdint>
#include <memory>
#include "test/gtest.h"
namespace webrtc {
// Verify that the default value for ms_per_tick is 10.
TEST(TickTimer, DefaultMsPerTick) {
TickTimer tt;
EXPECT_EQ(10, tt.ms_per_tick());
}
TEST(TickTimer, CustomMsPerTick) {
TickTimer tt(17);
EXPECT_EQ(17, tt.ms_per_tick());
}
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, StopwatchWithCustomTicktime) {
const int kMsPerTick = 17;
TickTimer tt(kMsPerTick);
std::unique_ptr<TickTimer::Stopwatch> sw = tt.GetNewStopwatch();
ASSERT_TRUE(sw);
EXPECT_EQ(0u, sw->ElapsedMs());
tt.Increment();
EXPECT_EQ(static_cast<uint64_t>(kMsPerTick), 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 do not change the state.
tt.Increment();
EXPECT_TRUE(cd->Finished());
tt.Increment(1234);
EXPECT_TRUE(cd->Finished());
}
} // namespace webrtc