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xo-unit: ++ Quantity unit test

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This commit is contained in:
Roland Conybeare 2024-04-27 11:23:47 -04:00
commit 2b03bb9442
1 changed files with 15 additions and 1 deletions
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16
utest/Quantity.test.cpp
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@ -333,7 +333,7 @@ namespace xo {
}
auto q1_plus_q2 = q1 + q2;
/* k2 = q1/q2; so q1+q2 = q1(1 + q2/q1) = q1(1 + k2) */
/* k1 = q1/q2; k2 = q2/q1; so q1+q2 = q1(1 + q2/q1) = q1(1 + k2) */
REQUIRE(q1_plus_q2.unit() == q1.unit());
REQUIRE(q1_plus_q2.scale() == Approx(1.0 + k2).epsilon(1.0e-6));
@ -344,6 +344,20 @@ namespace xo {
auto q1_neg = -q1;
REQUIRE(q1_neg.unit() == q1.unit());
REQUIRE(q1_neg.scale() == -q1.scale());
auto q1_mult_k2 = q1 * k2;
auto k2_mult_q1 = k2 * q1;
REQUIRE(q1_mult_k2.unit() == q1.unit());
REQUIRE(k2_mult_q1.unit() == q1.unit());
REQUIRE(q1_mult_k2 == k2_mult_q1);
/* expect q1*k2 ~ q2, but may not be exact */
{
auto s = q1_mult_k2 / q2;
REQUIRE(s.is_dimensionless());
REQUIRE(s.scale() == Approx(1.0).epsilon(1.0e-6));
}
}
}
}