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Time overflow tests

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Pavel Kirienko
2014-03-11 15:00:14 +04:00
parent d5e30f643c
commit ca9bebce13
1 changed files with 20 additions and 0 deletions
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libuavcan/test/time.cpp
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@@ -85,3 +85,23 @@ TEST(Time, Utc)
ASSERT_EQ("0.018000", u1.toString());
ASSERT_EQ("12345.678900", UtcTime(ts).toString());
}
TEST(Time, Overflow)
{
using uavcan::MonotonicDuration;
using uavcan::MonotonicTime;
MonotonicTime max_4 = MonotonicTime::fromUSec(MonotonicTime::getMax().toUSec() / 4);
MonotonicDuration max_4_duration = max_4 - MonotonicTime();
std::cout << max_4 << std::endl;
ASSERT_EQ(max_4_duration.toUSec(), max_4.toUSec());
MonotonicTime max = (((max_4 + max_4_duration) + max_4_duration) + max_4_duration) + max_4_duration;
ASSERT_EQ(max, MonotonicTime::getMax()); // Must not overflow
MonotonicTime min;
min -= max_4_duration;
ASSERT_EQ(min, MonotonicTime()); // Must not underflow
}