64 lines
1.7 KiB
C++
64 lines
1.7 KiB
C++
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#include <gtest/gtest.h>
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#include <vanetza/common/manual_runtime.hpp>
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#include <vanetza/dcc/burst_budget.hpp>
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using Runtime = vanetza::ManualRuntime;
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using namespace vanetza::dcc;
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static const vanetza::Clock::duration immediately = std::chrono::milliseconds(0);
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TEST(BurstBudget, normal)
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{
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Runtime rt;
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BurstBudget budget(rt);
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// consume whole budget
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for (unsigned i = 0; i < 20; ++i) {
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rt.trigger(std::chrono::milliseconds(49));
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EXPECT_EQ(immediately, budget.delay());
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budget.notify();
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}
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// nothing left now
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rt.trigger(std::chrono::milliseconds(20));
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EXPECT_LT(std::chrono::seconds(9), budget.delay());
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EXPECT_GT(std::chrono::seconds(10), budget.delay());
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}
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TEST(BurstBudget, too_many_messages)
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{
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Runtime rt;
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BurstBudget budget(rt);
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// consume whole budget immediately
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for (unsigned i = 0; i < 20; ++i) {
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EXPECT_EQ(immediately, budget.delay());
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budget.notify();
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}
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// check if budget delay recovers gradually
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EXPECT_EQ(std::chrono::seconds(10), budget.delay());
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rt.trigger(std::chrono::seconds(5));
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EXPECT_EQ(std::chrono::seconds(5), budget.delay());
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rt.trigger(std::chrono::seconds(5));
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EXPECT_EQ(immediately, budget.delay());
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}
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TEST(BurstBudget, too_long)
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{
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Runtime rt;
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BurstBudget budget(rt);
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// start burst with one consumption
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EXPECT_EQ(immediately, budget.delay());
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budget.notify();
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// ensure we are still able to participate in burst
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rt.trigger(std::chrono::milliseconds(990));
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EXPECT_EQ(immediately, budget.delay());
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// burst is over, we will have to wait for next one
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rt.trigger(std::chrono::milliseconds(10));
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EXPECT_EQ(std::chrono::seconds(9), budget.delay());
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}
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