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63 lines
1.9 KiB
63 lines
1.9 KiB
// Copyright 2019 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "discovery/mdns/mdns_random.h"
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#include "gmock/gmock.h"
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#include "gtest/gtest.h"
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namespace openscreen {
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namespace discovery {
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namespace {
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constexpr int kIterationCount = 100;
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}
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TEST(MdnsRandomTest, InitialQueryDelay) {
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constexpr std::chrono::milliseconds lower_bound{20};
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constexpr std::chrono::milliseconds upper_bound{120};
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MdnsRandom mdns_random;
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for (int i = 0; i < kIterationCount; ++i) {
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const Clock::duration delay = mdns_random.GetInitialQueryDelay();
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EXPECT_GE(delay, lower_bound);
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EXPECT_LE(delay, upper_bound);
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}
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}
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TEST(MdnsRandomTest, RecordTtlVariation) {
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constexpr double lower_bound = 0.0;
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constexpr double upper_bound = 0.02;
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MdnsRandom mdns_random;
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for (int i = 0; i < kIterationCount; ++i) {
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const double variation = mdns_random.GetRecordTtlVariation();
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EXPECT_GE(variation, lower_bound);
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EXPECT_LE(variation, upper_bound);
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}
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}
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TEST(MdnsRandomTest, SharedRecordResponseDelay) {
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constexpr std::chrono::milliseconds lower_bound{20};
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constexpr std::chrono::milliseconds upper_bound{120};
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MdnsRandom mdns_random;
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for (int i = 0; i < kIterationCount; ++i) {
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const Clock::duration delay = mdns_random.GetSharedRecordResponseDelay();
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EXPECT_GE(delay, lower_bound);
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EXPECT_LE(delay, upper_bound);
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}
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}
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TEST(MdnsRandomTest, TruncatedQueryResponseDelay) {
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constexpr std::chrono::milliseconds lower_bound{400};
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constexpr std::chrono::milliseconds upper_bound{500};
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MdnsRandom mdns_random;
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for (int i = 0; i < kIterationCount; ++i) {
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const Clock::duration delay = mdns_random.GetTruncatedQueryResponseDelay();
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EXPECT_GE(delay, lower_bound);
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EXPECT_LE(delay, upper_bound);
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}
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}
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} // namespace discovery
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} // namespace openscreen
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