55 lines
3.1 KiB
C++
55 lines
3.1 KiB
C++
#include <cruft/util/range.hpp>
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#include <cruft/util/tap.hpp>
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#include <cstdlib>
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#include <limits>
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int
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main (int, char **)
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{
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cruft::TAP::logger tap;
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// Check some simple cases close to the edges of a unit range. Tests float rounding.
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tap.expect ( cruft::range<double>::unit ().contains ( 0.0), "floating unit contains 0");
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tap.expect ( cruft::range<double>::unit ().contains ( 1.0), "floating unit contains 1");
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tap.expect ( cruft::range<double>::unit ().contains (std::numeric_limits<double>::min ()), "floating unit contains min");
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tap.expect (!cruft::range<double>::unit ().contains (-0.00001), "doesn't contain fractionally low value");
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tap.expect (!cruft::range<double>::unit ().contains ( 1.00001), "doesn't contain fractionally high value");
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// Check edge cases of unit with integer values
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tap.expect ( cruft::range<uint16_t>::unit ().contains (0), "unsigned unit contains 0");
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tap.expect ( cruft::range<uint16_t>::unit ().contains (1), "unsigned unit contains 1");
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tap.expect (!cruft::range<uint16_t>::unit ().contains (2), "unsigned unit doesn't contain 2");
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tap.expect (!cruft::range<uint16_t>::unit ().contains (std::numeric_limits <uint16_t>::max ()), "unsigned unit doesn't contain max");
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// Check the inclusivity of unlimited with special floating values
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tap.expect ( cruft::range<double>::unlimited ().contains (0.0), "floating unlimited contains 0");
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tap.expect ( cruft::range<double>::unlimited ().contains (+std::numeric_limits<double>::infinity ()), "floating unlimited contains +INF");
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tap.expect ( cruft::range<double>::unlimited ().contains (-std::numeric_limits<double>::infinity ()), "floating unlimited contains -INF");
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tap.expect (!cruft::range<double>::unlimited ().contains ( std::numeric_limits<double>::quiet_NaN ()), "floating unlimited doesn't contain NAN");
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// Check the inclusivity of unlimited with some large numbers
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tap.expect ( cruft::range<uint16_t>::unlimited ().contains (std::numeric_limits<uint16_t>::min()), "floating unlimited contains min");
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tap.expect ( cruft::range<uint16_t>::unlimited ().contains (std::numeric_limits<uint16_t>::max()), "floating unlimited contains max");
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// Check inclusivity of max
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tap.expect (!cruft::range<double>::max ().contains ( std::numeric_limits<double>::infinity ()), "floating max contains +INF");
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tap.expect (!cruft::range<double>::max ().contains (-std::numeric_limits<double>::infinity ()), "floating max contains -INF");
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tap.expect ( cruft::range<uint16_t>::max ().contains (std::numeric_limits<uint16_t>::min()), "unsigned max contains min");
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tap.expect ( cruft::range<uint16_t>::max ().contains (std::numeric_limits<uint16_t>::max()), "unsigned max contains max");
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// Check that expansion via NaN is a noop
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{
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cruft::range<double> initial_nan (std::numeric_limits<double>::quiet_NaN (),
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std::numeric_limits<double>::quiet_NaN ());
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initial_nan.expand (1.0);
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tap.expect_eq (initial_nan.lo, 1.0, "NAN expansion noop for lo");
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tap.expect_eq (initial_nan.hi, 1.0, "NAN expansion noop for hi");
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}
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return tap.status ();
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}
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