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/*
* Copyright (c) 2014 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 <limits>
#include "testing/gtest/include/gtest/gtest.h"
#include "webrtc/modules/pacing/bitrate_prober.h"
namespace webrtc {
TEST(BitrateProberTest, VerifyStatesAndTimeBetweenProbes) {
BitrateProber prober;
EXPECT_FALSE(prober.IsProbing());
int64_t now_ms = 0;
EXPECT_EQ(std::numeric_limits<int>::max(), prober.TimeUntilNextProbe(now_ms));
prober.SetEnabled(true);
EXPECT_FALSE(prober.IsProbing());
prober.MaybeInitializeProbe(300000);
EXPECT_TRUE(prober.IsProbing());
EXPECT_EQ(0, prober.TimeUntilNextProbe(now_ms));
prober.PacketSent(now_ms, 1000);
for (int i = 0; i < 5; ++i) {
EXPECT_EQ(8, prober.TimeUntilNextProbe(now_ms));
now_ms += 4;
EXPECT_EQ(4, prober.TimeUntilNextProbe(now_ms));
now_ms += 4;
EXPECT_EQ(0, prober.TimeUntilNextProbe(now_ms));
prober.PacketSent(now_ms, 1000);
}
for (int i = 0; i < 5; ++i) {
EXPECT_EQ(4, prober.TimeUntilNextProbe(now_ms));
now_ms += 4;
EXPECT_EQ(0, prober.TimeUntilNextProbe(now_ms));
prober.PacketSent(now_ms, 1000);
}
EXPECT_EQ(std::numeric_limits<int>::max(), prober.TimeUntilNextProbe(now_ms));
EXPECT_FALSE(prober.IsProbing());
}
} // namespace webrtc
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