Don't initiate perodic probing if we don't have a bandwidth estimate.
BUG=webrtc:7582
Review-Url: https://codereview.webrtc.org/2861673006
Cr-Commit-Position: refs/heads/master@{#18018}
diff --git a/webrtc/modules/congestion_controller/probe_controller_unittest.cc b/webrtc/modules/congestion_controller/probe_controller_unittest.cc
index 19a9039..4ed2dee 100644
--- a/webrtc/modules/congestion_controller/probe_controller_unittest.cc
+++ b/webrtc/modules/congestion_controller/probe_controller_unittest.cc
@@ -175,6 +175,34 @@
testing::Mock::VerifyAndClearExpectations(&pacer_);
}
+TEST_F(ProbeControllerTest, PeriodicProbingAfterReset) {
+ testing::StrictMock<MockPacedSender> local_pacer;
+ probe_controller_.reset(new ProbeController(&local_pacer, &clock_));
+ int64_t alr_start_time = clock_.TimeInMilliseconds();
+ EXPECT_CALL(local_pacer, GetApplicationLimitedRegionStartTime())
+ .WillRepeatedly(
+ Return(rtc::Optional<int64_t>(alr_start_time)));
+
+ EXPECT_CALL(local_pacer, CreateProbeCluster(_)).Times(2);
+ probe_controller_->EnablePeriodicAlrProbing(true);
+ probe_controller_->SetBitrates(kMinBitrateBps, kStartBitrateBps,
+ kMaxBitrateBps);
+ probe_controller_->Reset();
+
+ clock_.AdvanceTimeMilliseconds(10000);
+ probe_controller_->Process();
+
+ EXPECT_CALL(local_pacer, CreateProbeCluster(_)).Times(2);
+ probe_controller_->SetBitrates(kMinBitrateBps, kStartBitrateBps,
+ kMaxBitrateBps);
+
+ // Make sure we use |kStartBitrateBps| as the estimated bitrate
+ // until SetEstimatedBitrate is called with an updated estimate.
+ clock_.AdvanceTimeMilliseconds(10000);
+ EXPECT_CALL(local_pacer, CreateProbeCluster(kStartBitrateBps*2));
+ probe_controller_->Process();
+}
+
TEST_F(ProbeControllerTest, TestExponentialProbingOverflow) {
const int64_t kMbpsMultiplier = 1000000;
probe_controller_->SetBitrates(kMinBitrateBps, 10 * kMbpsMultiplier,