fsfw/unittests/globalfunctions/testTimevalOperations.cpp

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#include <fsfw/globalfunctions/timevalOperations.h>
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#include <catch2/catch_approx.hpp>
#include <catch2/catch_test_macros.hpp>
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#include "CatchDefinitions.h"
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TEST_CASE("TimevalTest", "[timevalOperations]") {
SECTION("Comparison") {
timeval t1;
t1.tv_sec = 1648227422;
t1.tv_usec = 123456;
timeval t2;
t2.tv_sec = 1648227422;
t2.tv_usec = 123456;
REQUIRE(t1 == t2);
REQUIRE(t2 == t1);
REQUIRE_FALSE(t1 != t2);
REQUIRE_FALSE(t2 != t1);
REQUIRE(t1 <= t2);
REQUIRE(t2 <= t1);
REQUIRE(t1 >= t2);
REQUIRE(t2 >= t1);
REQUIRE_FALSE(t1 < t2);
REQUIRE_FALSE(t2 < t1);
REQUIRE_FALSE(t1 > t2);
REQUIRE_FALSE(t2 > t1);
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timeval t3;
t3.tv_sec = 1648227422;
t3.tv_usec = 123457;
REQUIRE_FALSE(t1 == t3);
REQUIRE(t1 != t3);
REQUIRE(t1 <= t3);
REQUIRE_FALSE(t3 <= t1);
REQUIRE_FALSE(t1 >= t3);
REQUIRE(t3 >= t1);
REQUIRE(t1 < t3);
REQUIRE_FALSE(t3 < t1);
REQUIRE_FALSE(t1 > t3);
REQUIRE(t3 > t1);
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timeval t4;
t4.tv_sec = 1648227423;
t4.tv_usec = 123456;
REQUIRE_FALSE(t1 == t4);
REQUIRE(t1 != t4);
REQUIRE(t1 <= t4);
REQUIRE_FALSE(t4 <= t1);
REQUIRE_FALSE(t1 >= t4);
REQUIRE(t4 >= t1);
REQUIRE(t1 < t4);
REQUIRE_FALSE(t4 < t1);
REQUIRE_FALSE(t1 > t4);
REQUIRE(t4 > t1);
}
SECTION("Operators") {
timeval t1;
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if (sizeof(t1.tv_sec) == 8) {
t1.tv_sec = 1648227422;
t1.tv_usec = 123456;
timeval t2;
t2.tv_sec = 1648227422;
t2.tv_usec = 123456;
timeval t3 = t1 - t2;
REQUIRE(t3.tv_sec == 0);
REQUIRE(t3.tv_usec == 0);
timeval t4 = t1 - t3;
REQUIRE(t4.tv_sec == 1648227422);
REQUIRE(t4.tv_usec == 123456);
timeval t5 = t3 - t1;
REQUIRE(t5.tv_sec == -1648227422);
REQUIRE(t5.tv_usec == -123456);
timeval t6;
t6.tv_sec = 1648227400;
t6.tv_usec = 999999;
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timeval t7 = t6 + t1;
// Overflow test
REQUIRE(t7.tv_sec == (1648227422ull + 1648227400ull + 1ull));
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REQUIRE(t7.tv_usec == 123455);
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timeval t8 = t1 - t6;
REQUIRE(t8.tv_sec == 1648227422 - 1648227400 - 1);
REQUIRE(t8.tv_usec == 123457);
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double scalar = 2;
timeval t9 = t1 * scalar;
REQUIRE(t9.tv_sec == 3296454844);
REQUIRE(t9.tv_usec == 246912);
timeval t10 = scalar * t1;
REQUIRE(t10.tv_sec == 3296454844);
REQUIRE(t10.tv_usec == 246912);
timeval t11 = t6 * scalar;
REQUIRE(t11.tv_sec == (3296454800 + 1));
REQUIRE(t11.tv_usec == 999998);
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timeval t12 = t1 / scalar;
REQUIRE(t12.tv_sec == 824113711);
REQUIRE(t12.tv_usec == 61728);
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timeval t13 = t6 / scalar;
REQUIRE(t13.tv_sec == 824113700);
// Rounding issue
REQUIRE(t13.tv_usec == 499999);
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double scalar2 = t9 / t1;
REQUIRE(scalar2 == Catch::Approx(2.0));
double scalar3 = t1 / t6;
REQUIRE(scalar3 == Catch::Approx(1.000000013));
double scalar4 = t3 / t1;
REQUIRE(scalar4 == Catch::Approx(0));
double scalar5 = t12 / t1;
REQUIRE(scalar5 == Catch::Approx(0.5));
}
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}
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SECTION("timevalOperations::toTimeval") {
double seconds = 1648227422.123456;
timeval t1 = timevalOperations::toTimeval(seconds);
REQUIRE(t1.tv_sec == 1648227422);
// Allow 1 usec rounding tolerance
REQUIRE(t1.tv_usec >= 123455);
REQUIRE(t1.tv_usec <= 123457);
}
}