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added one more test; highlighting an issue with detail::common_magnitude_type_impl when both types are the same

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This commit is contained in:
Yves Delley
2024-05-12 11:47:03 +02:00
parent 5412e27677
commit ae912c0efb
1 changed files with 12 additions and 0 deletions
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12
test/static/quantity_point_test.cpp
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@ -1706,9 +1706,21 @@ static_assert(value_cast_is_forbidden<quantity_point<m>, quantity_point<isq::wid
"value_cast shall not cast between different quantity types");
static_assert(value_cast_is_forbidden<quantity_point<isq::width[m]>, quantity_point<m>>(),
"value_cast shall not cast between different quantity types");
// value_cast which does not touch the point_origin
static_assert(value_cast<quantity_point<isq::height[m]>>(quantity_point{2 * isq::height[km]})
.quantity_from_origin_is_an_implementation_detail_.numerical_value_in(m) == 2000);
static_assert(value_cast<quantity_point<isq::height[km]>>(quantity_point{2000 * isq::height[m]})
.quantity_from_origin_is_an_implementation_detail_.numerical_value_in(km) == 2);
// a value_cast which includes a change to the point origin
static_assert(value_cast<quantity_point<isq::height[m], mean_sea_level>>(quantity_point{2000 * isq::height[m],
ground_level})
.quantity_from_origin_is_an_implementation_detail_.numerical_value_in(m) == 2042);
// a value_cast which includes a change to the point origin as-well as a change in units
static_assert(value_cast<quantity_point<isq::height[m], mean_sea_level>>(quantity_point{2 * isq::height[km],
ground_level})
.quantity_from_origin_is_an_implementation_detail_.numerical_value_in(m) == 2042);
// a value_cast which changes all three of unit, rep, point_origin simultaneously, and the range of either FromQP or
// ToQP does not include the other's point_origin
static_assert(value_cast<quantity_point<isq::height[cm], mean_sea_level, int>>(
quantity_point{std::int8_t{100} * isq::height[mm], ground_level})
.quantity_from_origin_is_an_implementation_detail_.numerical_value_in(cm) == 4210);