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Unified Diff: webrtc/voice_engine/transport_feedback_packet_loss_tracker_unittest.cc

Issue 2674733002: Modify TransportFeedbackPacketLossTrackerTest to use parameterization (Closed)
Patch Set: Rebased Created 3 years, 10 months ago
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Index: webrtc/voice_engine/transport_feedback_packet_loss_tracker_unittest.cc
diff --git a/webrtc/voice_engine/transport_feedback_packet_loss_tracker_unittest.cc b/webrtc/voice_engine/transport_feedback_packet_loss_tracker_unittest.cc
index 02719e39696b9e5c1d5ae80854516c4f02c8c117..5c9ae21c744292f90ff654c73d2a96d7f6467743 100644
--- a/webrtc/voice_engine/transport_feedback_packet_loss_tracker_unittest.cc
+++ b/webrtc/voice_engine/transport_feedback_packet_loss_tracker_unittest.cc
@@ -21,16 +21,23 @@
#include "webrtc/voice_engine/transport_feedback_packet_loss_tracker.h"
using webrtc::rtcp::TransportFeedback;
-using testing::Return;
-using testing::StrictMock;
namespace webrtc {
namespace {
-// All tests are run multiple times with various baseline sequence number,
-// to weed out potential bugs with wrap-around handling.
-constexpr uint16_t kBases[] = {0x0000, 0x3456, 0xc032, 0xfffe};
+class TransportFeedbackPacketLossTrackerTest
+ : public ::testing::TestWithParam<uint16_t> {
+ public:
+ TransportFeedbackPacketLossTrackerTest() = default;
+ virtual ~TransportFeedbackPacketLossTrackerTest() = default;
+
+ protected:
+ uint16_t base_{GetParam()};
+
+ private:
+ RTC_DISALLOW_COPY_AND_ASSIGN(TransportFeedbackPacketLossTrackerTest);
+};
void SendPackets(TransportFeedbackPacketLossTracker* tracker,
const std::vector<uint16_t>& seq_nums,
@@ -132,495 +139,455 @@ TEST(TransportFeedbackPacketLossTrackerTest, EmptyWindow) {
}
// A feedback received for an empty window has no effect.
-TEST(TransportFeedbackPacketLossTrackerTest, EmptyWindowFeedback) {
- for (uint16_t base : kBases) {
- TransportFeedbackPacketLossTracker tracker(3, 3, 2);
-
- // Feedback doesn't correspond to any packets - ignored.
- AddTransportFeedbackAndValidate(&tracker, base, {true, false, true});
- ValidatePacketLossStatistics(tracker,
- rtc::Optional<float>(),
- rtc::Optional<float>());
-
- // After the packets are transmitted, acking them would have an effect.
- SendPacketRange(&tracker, base, 3);
- AddTransportFeedbackAndValidate(&tracker, base, {true, false, true});
- ValidatePacketLossStatistics(tracker, 1.0f / 3.0f, 0.5f);
- }
+TEST_P(TransportFeedbackPacketLossTrackerTest, EmptyWindowFeedback) {
+ TransportFeedbackPacketLossTracker tracker(3, 3, 2);
+
+ // Feedback doesn't correspond to any packets - ignored.
+ AddTransportFeedbackAndValidate(&tracker, base_, {true, false, true});
+ ValidatePacketLossStatistics(tracker,
+ rtc::Optional<float>(),
+ rtc::Optional<float>());
+
+ // After the packets are transmitted, acking them would have an effect.
+ SendPacketRange(&tracker, base_, 3);
+ AddTransportFeedbackAndValidate(&tracker, base_, {true, false, true});
+ ValidatePacketLossStatistics(tracker, 1.0f / 3.0f, 0.5f);
}
// Sanity check on partially filled window.
-TEST(TransportFeedbackPacketLossTrackerTest, PartiallyFilledWindow) {
- for (uint16_t base : kBases) {
- TransportFeedbackPacketLossTracker tracker(10, 5, 4);
-
- // PLR unknown before minimum window size reached.
- // RPLR unknown before minimum pairs reached.
- // Expected window contents: [] -> [1001].
- SendPacketRange(&tracker, base, 3);
- AddTransportFeedbackAndValidate(&tracker, base, {true, false, false, true});
- ValidatePacketLossStatistics(tracker,
- rtc::Optional<float>(),
- rtc::Optional<float>());
- }
+TEST_P(TransportFeedbackPacketLossTrackerTest, PartiallyFilledWindow) {
+ TransportFeedbackPacketLossTracker tracker(10, 5, 4);
+
+ // PLR unknown before minimum window size reached.
+ // RPLR unknown before minimum pairs reached.
+ // Expected window contents: [] -> [1001].
+ SendPacketRange(&tracker, base_, 3);
+ AddTransportFeedbackAndValidate(&tracker, base_, {true, false, false, true});
+ ValidatePacketLossStatistics(tracker,
+ rtc::Optional<float>(),
+ rtc::Optional<float>());
}
// Sanity check on minimum filled window - PLR known, RPLR unknown.
-TEST(TransportFeedbackPacketLossTrackerTest, PlrMinimumFilledWindow) {
- for (uint16_t base : kBases) {
- TransportFeedbackPacketLossTracker tracker(10, 5, 5);
-
- // PLR correctly calculated after minimum window size reached.
- // RPLR not necessarily known at that time (not if min-pairs not reached).
- // Expected window contents: [] -> [10011].
- SendPacketRange(&tracker, base, 5);
- AddTransportFeedbackAndValidate(&tracker, base,
- {true, false, false, true, true});
- ValidatePacketLossStatistics(tracker,
- rtc::Optional<float>(2.0f / 5.0f),
- rtc::Optional<float>());
- }
+TEST_P(TransportFeedbackPacketLossTrackerTest, PlrMinimumFilledWindow) {
+ TransportFeedbackPacketLossTracker tracker(10, 5, 5);
+
+ // PLR correctly calculated after minimum window size reached.
+ // RPLR not necessarily known at that time (not if min-pairs not reached).
+ // Expected window contents: [] -> [10011].
+ SendPacketRange(&tracker, base_, 5);
+ AddTransportFeedbackAndValidate(&tracker, base_,
+ {true, false, false, true, true});
+ ValidatePacketLossStatistics(tracker,
+ rtc::Optional<float>(2.0f / 5.0f),
+ rtc::Optional<float>());
}
// Sanity check on minimum filled window - PLR unknown, RPLR known.
-TEST(TransportFeedbackPacketLossTrackerTest, RplrMinimumFilledWindow) {
- for (uint16_t base : kBases) {
- TransportFeedbackPacketLossTracker tracker(10, 6, 4);
-
- // RPLR correctly calculated after minimum pairs reached.
- // PLR not necessarily known at that time (not if min window not reached).
- // Expected window contents: [] -> [10011].
- SendPacketRange(&tracker, base, 5);
- AddTransportFeedbackAndValidate(&tracker, base,
- {true, false, false, true, true});
- ValidatePacketLossStatistics(tracker,
- rtc::Optional<float>(),
- rtc::Optional<float>(1.0f / 4.0f));
- }
+TEST_P(TransportFeedbackPacketLossTrackerTest, RplrMinimumFilledWindow) {
+ TransportFeedbackPacketLossTracker tracker(10, 6, 4);
+
+ // RPLR correctly calculated after minimum pairs reached.
+ // PLR not necessarily known at that time (not if min window not reached).
+ // Expected window contents: [] -> [10011].
+ SendPacketRange(&tracker, base_, 5);
+ AddTransportFeedbackAndValidate(&tracker, base_,
+ {true, false, false, true, true});
+ ValidatePacketLossStatistics(tracker,
+ rtc::Optional<float>(),
+ rtc::Optional<float>(1.0f / 4.0f));
}
// Additional reports update PLR and RPLR.
-TEST(TransportFeedbackPacketLossTrackerTest, ExtendWindow) {
- for (uint16_t base : kBases) {
- TransportFeedbackPacketLossTracker tracker(20, 5, 5);
-
- SendPacketRange(&tracker, base, 25);
-
- // Expected window contents: [] -> [10011].
- AddTransportFeedbackAndValidate(&tracker, base,
- {true, false, false, true, true});
- ValidatePacketLossStatistics(tracker,
- rtc::Optional<float>(2.0f / 5.0f),
- rtc::Optional<float>());
-
- // Expected window contents: [10011] -> [1001110101].
- AddTransportFeedbackAndValidate(&tracker, base + 5,
- {true, false, true, false, true});
- ValidatePacketLossStatistics(tracker, 4.0f / 10.0f, 3.0f / 9.0f);
-
- // Expected window contents: [1001110101] -> [1001110101-GAP-10001].
- AddTransportFeedbackAndValidate(&tracker, base + 20,
- {true, false, false, false, true});
- ValidatePacketLossStatistics(tracker, 7.0f / 15.0f, 4.0f / 13.0f);
- }
+TEST_P(TransportFeedbackPacketLossTrackerTest, ExtendWindow) {
+ TransportFeedbackPacketLossTracker tracker(20, 5, 5);
+
+ SendPacketRange(&tracker, base_, 25);
+
+ // Expected window contents: [] -> [10011].
+ AddTransportFeedbackAndValidate(&tracker, base_,
+ {true, false, false, true, true});
+ ValidatePacketLossStatistics(tracker,
+ rtc::Optional<float>(2.0f / 5.0f),
+ rtc::Optional<float>());
+
+ // Expected window contents: [10011] -> [1001110101].
+ AddTransportFeedbackAndValidate(&tracker, base_ + 5,
+ {true, false, true, false, true});
+ ValidatePacketLossStatistics(tracker, 4.0f / 10.0f, 3.0f / 9.0f);
+
+ // Expected window contents: [1001110101] -> [1001110101-GAP-10001].
+ AddTransportFeedbackAndValidate(&tracker, base_ + 20,
+ {true, false, false, false, true});
+ ValidatePacketLossStatistics(tracker, 7.0f / 15.0f, 4.0f / 13.0f);
}
// Sanity - all packets correctly received.
-TEST(TransportFeedbackPacketLossTrackerTest, AllReceived) {
- for (uint16_t base : kBases) {
- TransportFeedbackPacketLossTracker tracker(10, 5, 4);
-
- // Expected window contents: [] -> [11111].
- SendPacketRange(&tracker, base, 5);
- AddTransportFeedbackAndValidate(&tracker, base,
- {true, true, true, true, true});
- ValidatePacketLossStatistics(tracker, 0.0f, 0.0f);
- }
+TEST_P(TransportFeedbackPacketLossTrackerTest, AllReceived) {
+ TransportFeedbackPacketLossTracker tracker(10, 5, 4);
+
+ // Expected window contents: [] -> [11111].
+ SendPacketRange(&tracker, base_, 5);
+ AddTransportFeedbackAndValidate(&tracker, base_,
+ {true, true, true, true, true});
+ ValidatePacketLossStatistics(tracker, 0.0f, 0.0f);
}
// Sanity - all packets lost.
-TEST(TransportFeedbackPacketLossTrackerTest, AllLost) {
- for (uint16_t base : kBases) {
- TransportFeedbackPacketLossTracker tracker(10, 5, 4);
-
- // Expected window contents: [] -> [00000].
- SendPacketRange(&tracker, base, 5);
- // Note: Last acked packet (the received one) does not belong to the stream,
- // and is only there to make sure the feedback message is legal.
- AddTransportFeedbackAndValidate(&tracker, base,
- {false, false, false, false, false, true});
- ValidatePacketLossStatistics(tracker, 1.0f, 0.0f);
- }
+TEST_P(TransportFeedbackPacketLossTrackerTest, AllLost) {
+ TransportFeedbackPacketLossTracker tracker(10, 5, 4);
+
+ // Expected window contents: [] -> [00000].
+ SendPacketRange(&tracker, base_, 5);
+ // Note: Last acked packet (the received one) does not belong to the stream,
+ // and is only there to make sure the feedback message is legal.
+ AddTransportFeedbackAndValidate(&tracker, base_,
+ {false, false, false, false, false, true});
+ ValidatePacketLossStatistics(tracker, 1.0f, 0.0f);
}
// Repeated reports are ignored.
-TEST(TransportFeedbackPacketLossTrackerTest, ReportRepetition) {
- for (uint16_t base : kBases) {
- TransportFeedbackPacketLossTracker tracker(10, 5, 4);
-
- SendPacketRange(&tracker, base, 5);
-
- // Expected window contents: [] -> [10011].
- AddTransportFeedbackAndValidate(&tracker, base,
- {true, false, false, true, true});
- ValidatePacketLossStatistics(tracker, 2.0f / 5.0f, 1.0f / 4.0f);
-
- // Repeat entire previous feedback
- // Expected window contents: [10011] -> [10011].
- AddTransportFeedbackAndValidate(&tracker, base,
- {true, false, false, true, true});
- ValidatePacketLossStatistics(tracker, 2.0f / 5.0f, 1.0f / 4.0f);
- }
+TEST_P(TransportFeedbackPacketLossTrackerTest, ReportRepetition) {
+ TransportFeedbackPacketLossTracker tracker(10, 5, 4);
+
+ SendPacketRange(&tracker, base_, 5);
+
+ // Expected window contents: [] -> [10011].
+ AddTransportFeedbackAndValidate(&tracker, base_,
+ {true, false, false, true, true});
+ ValidatePacketLossStatistics(tracker, 2.0f / 5.0f, 1.0f / 4.0f);
+
+ // Repeat entire previous feedback
+ // Expected window contents: [10011] -> [10011].
+ AddTransportFeedbackAndValidate(&tracker, base_,
+ {true, false, false, true, true});
+ ValidatePacketLossStatistics(tracker, 2.0f / 5.0f, 1.0f / 4.0f);
}
// Report overlap.
-TEST(TransportFeedbackPacketLossTrackerTest, ReportOverlap) {
- for (uint16_t base : kBases) {
- TransportFeedbackPacketLossTracker tracker(10, 5, 1);
+TEST_P(TransportFeedbackPacketLossTrackerTest, ReportOverlap) {
+ TransportFeedbackPacketLossTracker tracker(10, 5, 1);
- SendPacketRange(&tracker, base, 15);
+ SendPacketRange(&tracker, base_, 15);
- // Expected window contents: [] -> [10011].
- AddTransportFeedbackAndValidate(&tracker, base,
- {true, false, false, true, true});
- ValidatePacketLossStatistics(tracker, 2.0f / 5.0f, 1.0f / 4.0f);
+ // Expected window contents: [] -> [10011].
+ AddTransportFeedbackAndValidate(&tracker, base_,
+ {true, false, false, true, true});
+ ValidatePacketLossStatistics(tracker, 2.0f / 5.0f, 1.0f / 4.0f);
- // Expected window contents: [10011] -> [1001101].
- AddTransportFeedbackAndValidate(&tracker, base + 3,
- {true, true, false, true});
- ValidatePacketLossStatistics(tracker, 3.0f / 7.0f, 2.0f / 6.0f);
- }
+ // Expected window contents: [10011] -> [1001101].
+ AddTransportFeedbackAndValidate(&tracker, base_ + 3,
+ {true, true, false, true});
+ ValidatePacketLossStatistics(tracker, 3.0f / 7.0f, 2.0f / 6.0f);
}
// Report conflict.
-TEST(TransportFeedbackPacketLossTrackerTest, ReportConflict) {
- for (uint16_t base : kBases) {
- TransportFeedbackPacketLossTracker tracker(10, 5, 4);
+TEST_P(TransportFeedbackPacketLossTrackerTest, ReportConflict) {
+ TransportFeedbackPacketLossTracker tracker(10, 5, 4);
- SendPacketRange(&tracker, base, 15);
+ SendPacketRange(&tracker, base_, 15);
- // Expected window contents: [] -> [01001].
- AddTransportFeedbackAndValidate(&tracker, base,
- {false, true, false, false, true});
- ValidatePacketLossStatistics(tracker, 3.0f / 5.0f, 2.0f / 4.0f);
+ // Expected window contents: [] -> [01001].
+ AddTransportFeedbackAndValidate(&tracker, base_,
+ {false, true, false, false, true});
+ ValidatePacketLossStatistics(tracker, 3.0f / 5.0f, 2.0f / 4.0f);
- // Expected window contents: [01001] -> [11101].
- // While false->true will be applied, true -> false will be ignored.
- AddTransportFeedbackAndValidate(&tracker, base, {true, false, true});
- ValidatePacketLossStatistics(tracker, 1.0f / 5.0f, 1.0f / 4.0f);
- }
+ // Expected window contents: [01001] -> [11101].
+ // While false->true will be applied, true -> false will be ignored.
+ AddTransportFeedbackAndValidate(&tracker, base_, {true, false, true});
+ ValidatePacketLossStatistics(tracker, 1.0f / 5.0f, 1.0f / 4.0f);
}
// Skipped packets treated as unknown (not lost).
-TEST(TransportFeedbackPacketLossTrackerTest, SkippedPackets) {
- for (uint16_t base : kBases) {
- TransportFeedbackPacketLossTracker tracker(10, 5, 1);
+TEST_P(TransportFeedbackPacketLossTrackerTest, SkippedPackets) {
+ TransportFeedbackPacketLossTracker tracker(10, 5, 1);
- SendPacketRange(&tracker, base, 200);
+ SendPacketRange(&tracker, base_, 200);
- // Expected window contents: [] -> [10011].
- AddTransportFeedbackAndValidate(&tracker, base,
- {true, false, false, true, true});
- ValidatePacketLossStatistics(tracker, 2.0f / 5.0f, 1.0f / 4.0f);
+ // Expected window contents: [] -> [10011].
+ AddTransportFeedbackAndValidate(&tracker, base_,
+ {true, false, false, true, true});
+ ValidatePacketLossStatistics(tracker, 2.0f / 5.0f, 1.0f / 4.0f);
- // Expected window contents: [10011] -> [10011-GAP-101].
- AddTransportFeedbackAndValidate(&tracker, base + 100, {true, false, true});
- ValidatePacketLossStatistics(tracker, 3.0f / 8.0f, 2.0f / 6.0f);
- }
+ // Expected window contents: [10011] -> [10011-GAP-101].
+ AddTransportFeedbackAndValidate(&tracker, base_ + 100, {true, false, true});
+ ValidatePacketLossStatistics(tracker, 3.0f / 8.0f, 2.0f / 6.0f);
}
// The window retains information up to the configured max-window-size, but
// starts discarding after that. (Sent packets are not counted.)
-TEST(TransportFeedbackPacketLossTrackerTest, MaxWindowSize) {
- for (uint16_t base : kBases) {
- TransportFeedbackPacketLossTracker tracker(10, 10, 1);
-
- SendPacketRange(&tracker, base, 200);
-
- // Up to max-window-size retained.
- // Expected window contents: [] -> [1010100001].
- AddTransportFeedbackAndValidate(
- &tracker, base,
- {true, false, true, false, true, false, false, false, false, true});
- ValidatePacketLossStatistics(tracker, 6.0f / 10.0f, 3.0f / 9.0f);
-
- // After max-window-size, older entries discarded to accommodate newer ones.
- // Expected window contents: [1010100001] -> [0000110111].
- AddTransportFeedbackAndValidate(&tracker, base + 10,
- {true, false, true, true, true});
- ValidatePacketLossStatistics(tracker, 5.0f / 10.0f, 2.0f / 9.0f);
- }
+TEST_P(TransportFeedbackPacketLossTrackerTest, MaxWindowSize) {
+ TransportFeedbackPacketLossTracker tracker(10, 10, 1);
+
+ SendPacketRange(&tracker, base_, 200);
+
+ // Up to max-window-size retained.
+ // Expected window contents: [] -> [1010100001].
+ AddTransportFeedbackAndValidate(
+ &tracker, base_,
+ {true, false, true, false, true, false, false, false, false, true});
+ ValidatePacketLossStatistics(tracker, 6.0f / 10.0f, 3.0f / 9.0f);
+
+ // After max-window-size, older entries discarded to accommodate newer ones.
+ // Expected window contents: [1010100001] -> [0000110111].
+ AddTransportFeedbackAndValidate(&tracker, base_ + 10,
+ {true, false, true, true, true});
+ ValidatePacketLossStatistics(tracker, 5.0f / 10.0f, 2.0f / 9.0f);
}
// Inserting a feedback into the middle of a full window works correctly.
-TEST(TransportFeedbackPacketLossTrackerTest, InsertIntoMiddle) {
- for (uint16_t base : kBases) {
- TransportFeedbackPacketLossTracker tracker(10, 5, 1);
-
- SendPacketRange(&tracker, base, 300);
-
- // Expected window contents: [] -> [10101].
- AddTransportFeedbackAndValidate(&tracker, base,
- {true, false, true, false, true});
- ValidatePacketLossStatistics(tracker, 2.0f / 5.0f, 2.0f / 4.0f);
-
- // Expected window contents: [10101] -> [10101-GAP-10001].
- AddTransportFeedbackAndValidate(&tracker, base + 100,
- {true, false, false, false, true});
- ValidatePacketLossStatistics(tracker, 5.0f / 10.0f, 3.0f / 8.0f);
-
- // Insert into the middle of this full window - it discards the older data.
- // Expected window contents: [10101-GAP-10001] -> [11111-GAP-10001].
- AddTransportFeedbackAndValidate(&tracker, base + 50,
- {true, true, true, true, true});
- ValidatePacketLossStatistics(tracker, 3.0f / 10.0f, 1.0f / 8.0f);
- }
+TEST_P(TransportFeedbackPacketLossTrackerTest, InsertIntoMiddle) {
+ TransportFeedbackPacketLossTracker tracker(10, 5, 1);
+
+ SendPacketRange(&tracker, base_, 300);
+
+ // Expected window contents: [] -> [10101].
+ AddTransportFeedbackAndValidate(&tracker, base_,
+ {true, false, true, false, true});
+ ValidatePacketLossStatistics(tracker, 2.0f / 5.0f, 2.0f / 4.0f);
+
+ // Expected window contents: [10101] -> [10101-GAP-10001].
+ AddTransportFeedbackAndValidate(&tracker, base_ + 100,
+ {true, false, false, false, true});
+ ValidatePacketLossStatistics(tracker, 5.0f / 10.0f, 3.0f / 8.0f);
+
+ // Insert into the middle of this full window - it discards the older data.
+ // Expected window contents: [10101-GAP-10001] -> [11111-GAP-10001].
+ AddTransportFeedbackAndValidate(&tracker, base_ + 50,
+ {true, true, true, true, true});
+ ValidatePacketLossStatistics(tracker, 3.0f / 10.0f, 1.0f / 8.0f);
}
// Inserting feedback into the middle of a full window works correctly - can
// complete two pairs.
-TEST(TransportFeedbackPacketLossTrackerTest, InsertionCompletesTwoPairs) {
- for (uint16_t base : kBases) {
- TransportFeedbackPacketLossTracker tracker(15, 5, 1);
-
- SendPacketRange(&tracker, base, 300);
-
- // Expected window contents: [] -> [10111].
- AddTransportFeedbackAndValidate(&tracker, base,
- {true, false, true, true, true});
- ValidatePacketLossStatistics(tracker, 1.0f / 5.0f, 1.0f / 4.0f);
-
- // Expected window contents: [10111] -> [10111-GAP-10101].
- AddTransportFeedbackAndValidate(&tracker, base + 7,
- {true, false, true, false, true});
- ValidatePacketLossStatistics(tracker, 3.0f / 10.0f, 3.0f / 8.0f);
-
- // Insert in between, closing the gap completely.
- // Expected window contents: [10111-GAP-10101] -> [101111010101].
- AddTransportFeedbackAndValidate(&tracker, base + 5, {false, true});
- ValidatePacketLossStatistics(tracker, 4.0f / 12.0f, 4.0f / 11.0f);
- }
+TEST_P(TransportFeedbackPacketLossTrackerTest, InsertionCompletesTwoPairs) {
+ TransportFeedbackPacketLossTracker tracker(15, 5, 1);
+
+ SendPacketRange(&tracker, base_, 300);
+
+ // Expected window contents: [] -> [10111].
+ AddTransportFeedbackAndValidate(&tracker, base_,
+ {true, false, true, true, true});
+ ValidatePacketLossStatistics(tracker, 1.0f / 5.0f, 1.0f / 4.0f);
+
+ // Expected window contents: [10111] -> [10111-GAP-10101].
+ AddTransportFeedbackAndValidate(&tracker, base_ + 7,
+ {true, false, true, false, true});
+ ValidatePacketLossStatistics(tracker, 3.0f / 10.0f, 3.0f / 8.0f);
+
+ // Insert in between, closing the gap completely.
+ // Expected window contents: [10111-GAP-10101] -> [101111010101].
+ AddTransportFeedbackAndValidate(&tracker, base_ + 5, {false, true});
+ ValidatePacketLossStatistics(tracker, 4.0f / 12.0f, 4.0f / 11.0f);
}
// The window can meaningfully hold up to 0x8000 SENT packets (of which only
// up to max-window acked messages will be kept and regarded).
-TEST(TransportFeedbackPacketLossTrackerTest, SecondQuadrant) {
- for (uint16_t base : kBases) {
- TransportFeedbackPacketLossTracker tracker(20, 5, 1);
-
- SendPacketRange(&tracker, base, 0x8000, false);
-
- // Expected window contents: [] -> [10011].
- AddTransportFeedbackAndValidate(&tracker, base,
- {true, false, false, true, true});
- ValidatePacketLossStatistics(tracker, 2.0f / 5.0f, 1.0f / 4.0f);
-
- // Window *does* get updated with inputs from quadrant #2.
- // Expected window contents: [10011] -> [100111].
- AddTransportFeedbackAndValidate(&tracker, base + 0x4321, {true});
- ValidatePacketLossStatistics(tracker, 2.0f / 6.0f, 1.0f / 4.0f);
-
- // Correct recognition of quadrant #2: up to, but not including, base +
- // 0x8000
- // Expected window contents: [100111] -> [1001111].
- AddTransportFeedbackAndValidate(&tracker, base + 0x7fff, {true});
- ValidatePacketLossStatistics(tracker, 2.0f / 7.0f, 1.0f / 4.0f);
- }
+TEST_P(TransportFeedbackPacketLossTrackerTest, SecondQuadrant) {
+ TransportFeedbackPacketLossTracker tracker(20, 5, 1);
+
+ SendPacketRange(&tracker, base_, 0x8000, false);
+
+ // Expected window contents: [] -> [10011].
+ AddTransportFeedbackAndValidate(&tracker, base_,
+ {true, false, false, true, true});
+ ValidatePacketLossStatistics(tracker, 2.0f / 5.0f, 1.0f / 4.0f);
+
+ // Window *does* get updated with inputs from quadrant #2.
+ // Expected window contents: [10011] -> [100111].
+ AddTransportFeedbackAndValidate(&tracker, base_ + 0x4321, {true});
+ ValidatePacketLossStatistics(tracker, 2.0f / 6.0f, 1.0f / 4.0f);
+
+ // Correct recognition of quadrant #2: up to, but not including, base_ +
+ // 0x8000
+ // Expected window contents: [100111] -> [1001111].
+ AddTransportFeedbackAndValidate(&tracker, base_ + 0x7fff, {true});
+ ValidatePacketLossStatistics(tracker, 2.0f / 7.0f, 1.0f / 4.0f);
}
// After the base has moved due to insertion into the third quadrant, it is
// still possible to get feedbacks in the middle of the window and obtain the
// correct PLR and RPLR. Insertion into the middle before the max window size
// has been achieved does not cause older packets to be dropped.
-TEST(TransportFeedbackPacketLossTrackerTest, InsertIntoMiddleAfterBaseMoved) {
- for (uint16_t base : kBases) {
- TransportFeedbackPacketLossTracker tracker(20, 5, 1);
-
- SendPacketRange(&tracker, base, 20);
- SendPacketRange(&tracker, base + 0x5000, 20);
-
- // Expected window contents: [] -> [1001101].
- AddTransportFeedbackAndValidate(
- &tracker, base, {true, false, false, true, true, false, true});
- ValidatePacketLossStatistics(tracker, 3.0f / 7.0f, 2.0f / 6.0f);
-
- // Expected window contents: [1001101] -> [101-GAP-1001].
- SendPacketRange(&tracker, base + 0x8000, 4);
- AddTransportFeedbackAndValidate(&tracker, base + 0x8000,
- {true, false, false, true});
- ValidatePacketLossStatistics(tracker, 3.0f / 7.0f, 2.0f / 5.0f);
-
- // Inserting into the middle still works after the base has shifted.
- // Expected window contents:
- // [101-GAP-1001] -> [101-GAP-100101-GAP-1001]
- AddTransportFeedbackAndValidate(&tracker, base + 0x5000,
- {true, false, false, true, false, true});
- ValidatePacketLossStatistics(tracker, 6.0f / 13.0f, 4.0f / 10.0f);
-
- // The base can keep moving after inserting into the middle.
- // Expected window contents:
- // [101-GAP-100101-GAP-1001] -> [1-GAP-100101-GAP-100111].
- SendPacketRange(&tracker, base + 0x8000 + 4, 2);
- AddTransportFeedbackAndValidate(&tracker, base + 0x8000 + 4, {true, true});
- ValidatePacketLossStatistics(tracker, 5.0f / 13.0f, 3.0f / 10.0f);
- }
+TEST_P(TransportFeedbackPacketLossTrackerTest, InsertIntoMiddleAfterBaseMoved) {
+ TransportFeedbackPacketLossTracker tracker(20, 5, 1);
+
+ SendPacketRange(&tracker, base_, 20);
+ SendPacketRange(&tracker, base_ + 0x5000, 20);
+
+ // Expected window contents: [] -> [1001101].
+ AddTransportFeedbackAndValidate(
+ &tracker, base_, {true, false, false, true, true, false, true});
+ ValidatePacketLossStatistics(tracker, 3.0f / 7.0f, 2.0f / 6.0f);
+
+ // Expected window contents: [1001101] -> [101-GAP-1001].
+ SendPacketRange(&tracker, base_ + 0x8000, 4);
+ AddTransportFeedbackAndValidate(&tracker, base_ + 0x8000,
+ {true, false, false, true});
+ ValidatePacketLossStatistics(tracker, 3.0f / 7.0f, 2.0f / 5.0f);
+
+ // Inserting into the middle still works after the base has shifted.
+ // Expected window contents:
+ // [101-GAP-1001] -> [101-GAP-100101-GAP-1001]
+ AddTransportFeedbackAndValidate(&tracker, base_ + 0x5000,
+ {true, false, false, true, false, true});
+ ValidatePacketLossStatistics(tracker, 6.0f / 13.0f, 4.0f / 10.0f);
+
+ // The base can keep moving after inserting into the middle.
+ // Expected window contents:
+ // [101-GAP-100101-GAP-1001] -> [1-GAP-100101-GAP-100111].
+ SendPacketRange(&tracker, base_ + 0x8000 + 4, 2);
+ AddTransportFeedbackAndValidate(&tracker, base_ + 0x8000 + 4, {true, true});
+ ValidatePacketLossStatistics(tracker, 5.0f / 13.0f, 3.0f / 10.0f);
}
// After moving the base of the window, the max window size is still observed.
-TEST(TransportFeedbackPacketLossTrackerTest, MaxWindowObservedAfterBaseMoved) {
- for (uint16_t base : kBases) {
- TransportFeedbackPacketLossTracker tracker(15, 10, 1);
-
- // Expected window contents: [] -> [1001110101].
- SendPacketRange(&tracker, base, 10);
- AddTransportFeedbackAndValidate(
- &tracker, base,
- {true, false, false, true, true, true, false, true, false, true});
- ValidatePacketLossStatistics(tracker, 4.0f / 10.0f, 3.0f / 9.0f);
-
- // Create gap (on both sides).
- SendPacketRange(&tracker, base + 0x4000, 20);
-
- // Expected window contents: [1001110101] -> [1110101-GAP-101].
- SendPacketRange(&tracker, base + 0x8000, 3);
- AddTransportFeedbackAndValidate(&tracker, base + 0x8000,
- {true, false, true});
- ValidatePacketLossStatistics(tracker, 3.0f / 10.0f, 3.0f / 8.0f);
-
- // Push into middle until max window is reached. The gap is NOT completed.
- // Expected window contents:
- // [1110101-GAP-101] -> [1110101-GAP-10001-GAP-101]
- AddTransportFeedbackAndValidate(&tracker, base + 0x4000 + 2,
- {true, false, false, false, true});
- ValidatePacketLossStatistics(tracker, 6.0f / 15.0f, 4.0f / 12.0f);
-
- // Pushing new packets into the middle would discard older packets.
- // Expected window contents:
- // [1110101-GAP-10001-GAP-101] -> [0101-GAP-10001101-GAP-101]
- AddTransportFeedbackAndValidate(&tracker, base + 0x4000 + 2 + 5,
- {true, false, true});
- ValidatePacketLossStatistics(tracker, 7.0f / 15.0f, 5.0f / 12.0f);
- }
+TEST_P(TransportFeedbackPacketLossTrackerTest,
+ MaxWindowObservedAfterBaseMoved) {
+ TransportFeedbackPacketLossTracker tracker(15, 10, 1);
+
+ // Expected window contents: [] -> [1001110101].
+ SendPacketRange(&tracker, base_, 10);
+ AddTransportFeedbackAndValidate(
+ &tracker, base_,
+ {true, false, false, true, true, true, false, true, false, true});
+ ValidatePacketLossStatistics(tracker, 4.0f / 10.0f, 3.0f / 9.0f);
+
+ // Create gap (on both sides).
+ SendPacketRange(&tracker, base_ + 0x4000, 20);
+
+ // Expected window contents: [1001110101] -> [1110101-GAP-101].
+ SendPacketRange(&tracker, base_ + 0x8000, 3);
+ AddTransportFeedbackAndValidate(&tracker, base_ + 0x8000,
+ {true, false, true});
+ ValidatePacketLossStatistics(tracker, 3.0f / 10.0f, 3.0f / 8.0f);
+
+ // Push into middle until max window is reached. The gap is NOT completed.
+ // Expected window contents:
+ // [1110101-GAP-101] -> [1110101-GAP-10001-GAP-101]
+ AddTransportFeedbackAndValidate(&tracker, base_ + 0x4000 + 2,
+ {true, false, false, false, true});
+ ValidatePacketLossStatistics(tracker, 6.0f / 15.0f, 4.0f / 12.0f);
+
+ // Pushing new packets into the middle would discard older packets.
+ // Expected window contents:
+ // [1110101-GAP-10001-GAP-101] -> [0101-GAP-10001101-GAP-101]
+ AddTransportFeedbackAndValidate(&tracker, base_ + 0x4000 + 2 + 5,
+ {true, false, true});
+ ValidatePacketLossStatistics(tracker, 7.0f / 15.0f, 5.0f / 12.0f);
}
// A packet with a new enough sequence number might shift enough old feedbacks
// out window, that we'd go back to an unknown PLR and RPLR.
-TEST(TransportFeedbackPacketLossTrackerTest, NewPacketMovesWindowBase) {
- for (uint16_t base : kBases) {
- TransportFeedbackPacketLossTracker tracker(20, 5, 3);
-
- SendPacketRange(&tracker, base, 50);
- SendPacketRange(&tracker, base + 0x4000 - 1, 6); // Gap
-
- // Expected window contents: [] -> [1001110101].
- AddTransportFeedbackAndValidate(
- &tracker, base,
- {true, false, false, true, true, true, false, true, false, true});
- ValidatePacketLossStatistics(tracker, 4.0f / 10.0f, 3.0f / 9.0f);
-
- // A new sent packet with a new enough sequence number could shift enough
- // acked packets out of window, that we'd go back to an unknown PLR
- // and RPLR. This *doesn't* // necessarily mean all of the old ones
- // were discarded, though.
- // Expected window contents: [1001110101] -> [01].
- SendPacketRange(&tracker, base + 0x8006, 2);
- ValidatePacketLossStatistics(tracker,
- rtc::Optional<float>(), // Still invalid.
- rtc::Optional<float>());
-
- // Even if those messages are acked, we'd still might be in unknown PLR
- // and RPLR, because we might have shifted more packets out of the window
- // than we have inserted.
- // Expected window contents: [01] -> [01-GAP-11].
- AddTransportFeedbackAndValidate(&tracker, base + 0x8006, {true, true});
- ValidatePacketLossStatistics(tracker,
- rtc::Optional<float>(), // Still invalid.
- rtc::Optional<float>());
-
- // Inserting in the middle shows that though some of the elements were
- // ejected, some were retained.
- // Expected window contents: [01-GAP-11] -> [01-GAP-1001-GAP-11].
- AddTransportFeedbackAndValidate(&tracker, base + 0x4000,
- {true, false, false, true});
- ValidatePacketLossStatistics(tracker, 3.0f / 8.0f, 2.0f / 5.0f);
- }
+TEST_P(TransportFeedbackPacketLossTrackerTest, NewPacketMovesWindowBase) {
+ TransportFeedbackPacketLossTracker tracker(20, 5, 3);
+
+ SendPacketRange(&tracker, base_, 50);
+ SendPacketRange(&tracker, base_ + 0x4000 - 1, 6); // Gap
+
+ // Expected window contents: [] -> [1001110101].
+ AddTransportFeedbackAndValidate(
+ &tracker, base_,
+ {true, false, false, true, true, true, false, true, false, true});
+ ValidatePacketLossStatistics(tracker, 4.0f / 10.0f, 3.0f / 9.0f);
+
+ // A new sent packet with a new enough sequence number could shift enough
+ // acked packets out of window, that we'd go back to an unknown PLR
+ // and RPLR. This *doesn't* // necessarily mean all of the old ones
+ // were discarded, though.
+ // Expected window contents: [1001110101] -> [01].
+ SendPacketRange(&tracker, base_ + 0x8006, 2);
+ ValidatePacketLossStatistics(tracker,
+ rtc::Optional<float>(), // Still invalid.
+ rtc::Optional<float>());
+
+ // Even if those messages are acked, we'd still might be in unknown PLR
+ // and RPLR, because we might have shifted more packets out of the window
+ // than we have inserted.
+ // Expected window contents: [01] -> [01-GAP-11].
+ AddTransportFeedbackAndValidate(&tracker, base_ + 0x8006, {true, true});
+ ValidatePacketLossStatistics(tracker,
+ rtc::Optional<float>(), // Still invalid.
+ rtc::Optional<float>());
+
+ // Inserting in the middle shows that though some of the elements were
+ // ejected, some were retained.
+ // Expected window contents: [01-GAP-11] -> [01-GAP-1001-GAP-11].
+ AddTransportFeedbackAndValidate(&tracker, base_ + 0x4000,
+ {true, false, false, true});
+ ValidatePacketLossStatistics(tracker, 3.0f / 8.0f, 2.0f / 5.0f);
}
// Sequence number gaps are not gaps in reception. However, gaps in reception
// are still possible, if a packet which WAS sent on the stream is not acked.
-TEST(TransportFeedbackPacketLossTrackerTest, SanityGapsInSequenceNumbers) {
- for (uint16_t base : kBases) {
- TransportFeedbackPacketLossTracker tracker(20, 5, 1);
-
- SendPackets(&tracker, {static_cast<uint16_t>(base),
- static_cast<uint16_t>(base + 2),
- static_cast<uint16_t>(base + 4),
- static_cast<uint16_t>(base + 6),
- static_cast<uint16_t>(base + 8)});
-
- // Gaps in sequence numbers not considered as gaps in window, because only
- // those sequence numbers which were associated with the stream count.
- // Expected window contents: [] -> [11011].
- AddTransportFeedbackAndValidate(
- // Note: Left packets belong to this stream, odd ones ignored.
- &tracker, base, {true, false,
- true, false,
- false, false,
- true, false,
- true, true});
- ValidatePacketLossStatistics(tracker, 1.0f / 5.0f, 1.0f / 4.0f);
-
- // Create gap by sending [base + 10] but not acking it.
- // Note: Acks for [base + 11] and [base + 13] ignored (other stream).
- // Expected window contents: [11011] -> [11011-GAP-01].
- SendPackets(&tracker, {static_cast<uint16_t>(base + 10),
- static_cast<uint16_t>(base + 12),
- static_cast<uint16_t>(base + 14)});
- AddTransportFeedbackAndValidate(&tracker, base + 11,
- {false, false, false, true, true});
- ValidatePacketLossStatistics(tracker, 2.0f / 7.0f, 2.0f / 5.0f);
- }
+TEST_P(TransportFeedbackPacketLossTrackerTest, SanityGapsInSequenceNumbers) {
+ TransportFeedbackPacketLossTracker tracker(20, 5, 1);
+
+ SendPackets(&tracker, {static_cast<uint16_t>(base_),
+ static_cast<uint16_t>(base_ + 2),
+ static_cast<uint16_t>(base_ + 4),
+ static_cast<uint16_t>(base_ + 6),
+ static_cast<uint16_t>(base_ + 8)});
+
+ // Gaps in sequence numbers not considered as gaps in window, because only
+ // those sequence numbers which were associated with the stream count.
+ // Expected window contents: [] -> [11011].
+ AddTransportFeedbackAndValidate(
+ // Note: Left packets belong to this stream, odd ones ignored.
+ &tracker, base_, {true, false,
+ true, false,
+ false, false,
+ true, false,
+ true, true});
+ ValidatePacketLossStatistics(tracker, 1.0f / 5.0f, 1.0f / 4.0f);
+
+ // Create gap by sending [base + 10] but not acking it.
+ // Note: Acks for [base + 11] and [base + 13] ignored (other stream).
+ // Expected window contents: [11011] -> [11011-GAP-01].
+ SendPackets(&tracker, {static_cast<uint16_t>(base_ + 10),
+ static_cast<uint16_t>(base_ + 12),
+ static_cast<uint16_t>(base_ + 14)});
+ AddTransportFeedbackAndValidate(&tracker, base_ + 11,
+ {false, false, false, true, true});
+ ValidatePacketLossStatistics(tracker, 2.0f / 7.0f, 2.0f / 5.0f);
}
// Sending a packet which is less than 0x8000 away from the baseline does
// not move the window.
-TEST(TransportFeedbackPacketLossTrackerTest, UnackedInWindowDoesNotMoveWindow) {
- for (uint16_t base : kBases) {
- TransportFeedbackPacketLossTracker tracker(5, 3, 1);
-
- // Baseline - window has acked messages.
- // Expected window contents: [] -> [10101].
- SendPacketRange(&tracker, base, 5);
- AddTransportFeedbackAndValidate(&tracker, base,
- {true, false, true, false, true});
- ValidatePacketLossStatistics(tracker, 2.0f / 5.0f, 2.0f / 4.0f);
-
- // Test - window not moved.
- // Expected window contents: [10101] -> [10101].
- SendPackets(&tracker, {static_cast<uint16_t>(base + 0x7fff)});
- ValidatePacketLossStatistics(tracker, 2.0f / 5.0f, 2.0f / 4.0f);
- }
+TEST_P(TransportFeedbackPacketLossTrackerTest,
+ UnackedInWindowDoesNotMoveWindow) {
+ TransportFeedbackPacketLossTracker tracker(5, 3, 1);
+
+ // Baseline - window has acked messages.
+ // Expected window contents: [] -> [10101].
+ SendPacketRange(&tracker, base_, 5);
+ AddTransportFeedbackAndValidate(&tracker, base_,
+ {true, false, true, false, true});
+ ValidatePacketLossStatistics(tracker, 2.0f / 5.0f, 2.0f / 4.0f);
+
+ // Test - window not moved.
+ // Expected window contents: [10101] -> [10101].
+ SendPackets(&tracker, {static_cast<uint16_t>(base_ + 0x7fff)});
+ ValidatePacketLossStatistics(tracker, 2.0f / 5.0f, 2.0f / 4.0f);
}
// Sending a packet which is at least 0x8000 away from the baseline, but not
// 0x8000 or more away from the newest packet in the window, moves the window,
// but does not reset it.
-TEST(TransportFeedbackPacketLossTrackerTest, UnackedOutOfWindowMovesWindow) {
- for (uint16_t base : kBases) {
- TransportFeedbackPacketLossTracker tracker(5, 3, 1);
-
- // Baseline - window has acked messages.
- // Expected window contents: [] -> [10101].
- SendPacketRange(&tracker, base, 5);
- AddTransportFeedbackAndValidate(&tracker, base,
- {true, false, true, false, true});
- ValidatePacketLossStatistics(tracker, 2.0f / 5.0f, 2.0f / 4.0f);
-
- // 0x8000 from baseline, but only 0x7ffc from newest - window moved.
- // Expected window contents: [10101] -> [0101].
- SendPackets(&tracker, {static_cast<uint16_t>(base + 0x8000)});
- ValidatePacketLossStatistics(tracker, 2.0f / 4.0f, 2.0f / 3.0f);
- }
+TEST_P(TransportFeedbackPacketLossTrackerTest, UnackedOutOfWindowMovesWindow) {
+ TransportFeedbackPacketLossTracker tracker(5, 3, 1);
+
+ // Baseline - window has acked messages.
+ // Expected window contents: [] -> [10101].
+ SendPacketRange(&tracker, base_, 5);
+ AddTransportFeedbackAndValidate(&tracker, base_,
+ {true, false, true, false, true});
+ ValidatePacketLossStatistics(tracker, 2.0f / 5.0f, 2.0f / 4.0f);
+
+ // 0x8000 from baseline, but only 0x7ffc from newest - window moved.
+ // Expected window contents: [10101] -> [0101].
+ SendPackets(&tracker, {static_cast<uint16_t>(base_ + 0x8000)});
+ ValidatePacketLossStatistics(tracker, 2.0f / 4.0f, 2.0f / 3.0f);
}
// TODO(elad.alon): More tests possible here, but a CL is in the pipeline which
@@ -630,35 +597,41 @@ TEST(TransportFeedbackPacketLossTrackerTest, UnackedOutOfWindowMovesWindow) {
// The window is reset by the sending of a packet which is 0x8000 or more
// away from the newest packet.
-TEST(TransportFeedbackPacketLossTrackerTest, WindowResetAfterLongNoSend) {
- for (uint16_t base : kBases) {
- TransportFeedbackPacketLossTracker tracker(10, 2, 1);
-
- // Baseline - window has acked messages.
- // Expected window contents: [] -> [1-GAP-10101].
- SendPacketRange(&tracker, base, 1);
- SendPacketRange(&tracker, base + 0x7fff - 4, 5);
- AddTransportFeedbackAndValidate(&tracker, base, {true});
- AddTransportFeedbackAndValidate(&tracker, base + 0x7fff - 4,
- {true, false, true, false, true});
- ValidatePacketLossStatistics(tracker, 2.0f / 6.0f, 2.0f / 5.0f);
-
- // Sent packet too new - the entire window is reset.
- // Expected window contents: [1-GAP-10101] -> [].
- SendPacketRange(&tracker, base + 0x7fff + 0x8000, 1);
- ValidatePacketLossStatistics(tracker,
- rtc::Optional<float>(),
- rtc::Optional<float>());
-
- // To show it was really reset, prove show that acking the sent packet
- // still leaves us at unknown, because no acked (or unacked) packets were
- // left in the window.
- // Expected window contents: [] -> [1].
- AddTransportFeedbackAndValidate(&tracker, base + 0x7fff + 0x8000, {true});
- ValidatePacketLossStatistics(tracker,
- rtc::Optional<float>(),
- rtc::Optional<float>());
- }
+TEST_P(TransportFeedbackPacketLossTrackerTest, WindowResetAfterLongNoSend) {
+ TransportFeedbackPacketLossTracker tracker(10, 2, 1);
+
+ // Baseline - window has acked messages.
+ // Expected window contents: [] -> [1-GAP-10101].
+ SendPacketRange(&tracker, base_, 1);
+ SendPacketRange(&tracker, base_ + 0x7fff - 4, 5);
+ AddTransportFeedbackAndValidate(&tracker, base_, {true});
+ AddTransportFeedbackAndValidate(&tracker, base_ + 0x7fff - 4,
+ {true, false, true, false, true});
+ ValidatePacketLossStatistics(tracker, 2.0f / 6.0f, 2.0f / 5.0f);
+
+ // Sent packet too new - the entire window is reset.
+ // Expected window contents: [1-GAP-10101] -> [].
+ SendPacketRange(&tracker, base_ + 0x7fff + 0x8000, 1);
+ ValidatePacketLossStatistics(tracker,
+ rtc::Optional<float>(),
+ rtc::Optional<float>());
+
+ // To show it was really reset, prove show that acking the sent packet
+ // still leaves us at unknown, because no acked (or unacked) packets were
+ // left in the window.
+ // Expected window contents: [] -> [1].
+ AddTransportFeedbackAndValidate(&tracker, base_ + 0x7fff + 0x8000, {true});
+ ValidatePacketLossStatistics(tracker,
+ rtc::Optional<float>(),
+ rtc::Optional<float>());
}
+// All tests are run multiple times with various baseline sequence number,
+// to weed out potential bugs with wrap-around handling.
+constexpr uint16_t kBases[] = {0x0000, 0x3456, 0xc032, 0xfffe};
+
+INSTANTIATE_TEST_CASE_P(_,
+ TransportFeedbackPacketLossTrackerTest,
+ testing::ValuesIn(kBases));
+
} // namespace webrtc
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