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/*
* Copyright (c) 2021 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 "net/dcsctp/tx/retransmission_error_counter.h"
#include "net/dcsctp/public/dcsctp_options.h"
#include "rtc_base/gunit.h"
#include "test/gmock.h"
namespace dcsctp {
namespace {
TEST(RetransmissionErrorCounterTest, HasInitialValue) {
DcSctpOptions options;
RetransmissionErrorCounter counter("log: ", options);
EXPECT_EQ(counter.value(), 0);
}
TEST(RetransmissionErrorCounterTest, ReturnsFalseAtMaximumValue) {
DcSctpOptions options;
options.max_retransmissions = 5;
RetransmissionErrorCounter counter("log: ", options);
EXPECT_TRUE(counter.Increment("test")); // 1
EXPECT_TRUE(counter.Increment("test")); // 2
EXPECT_TRUE(counter.Increment("test")); // 3
EXPECT_TRUE(counter.Increment("test")); // 4
EXPECT_TRUE(counter.Increment("test")); // 5
EXPECT_FALSE(counter.Increment("test")); // Too many retransmissions
}
TEST(RetransmissionErrorCounterTest, CanHandleZeroRetransmission) {
DcSctpOptions options;
options.max_retransmissions = 0;
RetransmissionErrorCounter counter("log: ", options);
EXPECT_FALSE(counter.Increment("test")); // One is too many.
}
TEST(RetransmissionErrorCounterTest, IsExhaustedAtMaximum) {
DcSctpOptions options;
options.max_retransmissions = 3;
RetransmissionErrorCounter counter("log: ", options);
EXPECT_TRUE(counter.Increment("test")); // 1
EXPECT_FALSE(counter.IsExhausted());
EXPECT_TRUE(counter.Increment("test")); // 2
EXPECT_FALSE(counter.IsExhausted());
EXPECT_TRUE(counter.Increment("test")); // 3
EXPECT_FALSE(counter.IsExhausted());
EXPECT_FALSE(counter.Increment("test")); // Too many retransmissions
EXPECT_TRUE(counter.IsExhausted());
EXPECT_FALSE(counter.Increment("test")); // One after too many
EXPECT_TRUE(counter.IsExhausted());
}
TEST(RetransmissionErrorCounterTest, ClearingCounter) {
DcSctpOptions options;
options.max_retransmissions = 3;
RetransmissionErrorCounter counter("log: ", options);
EXPECT_TRUE(counter.Increment("test")); // 1
EXPECT_TRUE(counter.Increment("test")); // 2
counter.Clear();
EXPECT_TRUE(counter.Increment("test")); // 1
EXPECT_TRUE(counter.Increment("test")); // 2
EXPECT_TRUE(counter.Increment("test")); // 3
EXPECT_FALSE(counter.IsExhausted());
EXPECT_FALSE(counter.Increment("test")); // Too many retransmissions
EXPECT_TRUE(counter.IsExhausted());
}
TEST(RetransmissionErrorCounterTest, CanBeLimitless) {
DcSctpOptions options;
options.max_retransmissions = std::nullopt;
RetransmissionErrorCounter counter("log: ", options);
for (int i = 0; i < 100; ++i) {
EXPECT_TRUE(counter.Increment("test"));
EXPECT_FALSE(counter.IsExhausted());
}
}
} // namespace
} // namespace dcsctp