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Add a Relative Comparison matcher for floating point numbers

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It checks Knuth's _close enough with tolerance_ relationship, that
is `|lhs - rhs| <= epsilon * max(|lhs|, |rhs|)`, rather then the
_very close with tolerance_ relationship that can be written down as
`|lhs - rhs| <= epsilon * min(|lhs|, |rhs|)`.

This is because it is the more common model around the internet, and
as such is likely to be less surprising to the users. In the future
we might want to provide the other model as well.

Closes #1746
This commit is contained in:
Martin Hořeňovský
2019-10-13 11:56:50 +02:00
parent c8db4e77c4
commit d2d418a9cb
8 changed files with 410 additions and 10 deletions
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18
projects/SelfTest/Baselines/compact.sw.approved.txt
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@@ -407,6 +407,11 @@ Misc.tests.cpp:<line number>: passed: Factorial(1) == 1 for: 1 == 1
Misc.tests.cpp:<line number>: passed: Factorial(2) == 2 for: 2 == 2
Misc.tests.cpp:<line number>: passed: Factorial(3) == 6 for: 6 == 6
Misc.tests.cpp:<line number>: passed: Factorial(10) == 3628800 for: 3628800 (0x<hex digits>) == 3628800 (0x<hex digits>)
Matchers.tests.cpp:<line number>: passed: 10., WithinRel(11.1, 0.1) for: 10.0 and 11.1 are within 10% of each other
Matchers.tests.cpp:<line number>: passed: 10., !WithinRel(11.2, 0.1) for: 10.0 not and 11.2 are within 10% of each other
Matchers.tests.cpp:<line number>: passed: 1., !WithinRel(0., 0.99) for: 1.0 not and 0 are within 99% of each other
Matchers.tests.cpp:<line number>: passed: -0., WithinRel(0.) for: -0.0 and 0 are within 2.22045e-12% of each other
Matchers.tests.cpp:<line number>: passed: v1, WithinRel(v2) for: 0.0 and 2.22507e-308 are within 2.22045e-12% of each other
Matchers.tests.cpp:<line number>: passed: 1., WithinAbs(1., 0) for: 1.0 is within 0.0 of 1.0
Matchers.tests.cpp:<line number>: passed: 0., WithinAbs(1., 1) for: 0.0 is within 1.0 of 1.0
Matchers.tests.cpp:<line number>: passed: 0., !WithinAbs(1., 0.99) for: 0.0 not is within 0.99 of 1.0
@@ -423,9 +428,18 @@ Matchers.tests.cpp:<line number>: passed: 1., WithinULP(1., 0) for: 1.0 is withi
Matchers.tests.cpp:<line number>: passed: -0., WithinULP(0., 0) for: -0.0 is within 0 ULPs of 0.0 ([0.00000000000000000, 0.00000000000000000])
Matchers.tests.cpp:<line number>: passed: 1., WithinAbs(1., 0.5) || WithinULP(2., 1) for: 1.0 ( is within 0.5 of 1.0 or is within 1 ULPs of 2.0 ([1.99999999999999978, 2.00000000000000044]) )
Matchers.tests.cpp:<line number>: passed: 1., WithinAbs(2., 0.5) || WithinULP(1., 0) for: 1.0 ( is within 0.5 of 2.0 or is within 0 ULPs of 1.0 ([1.00000000000000000, 1.00000000000000000]) )
Matchers.tests.cpp:<line number>: passed: 0.0001, WithinAbs(0., 0.001) || WithinRel(0., 0.1) for: 0.0001 ( is within 0.001 of 0.0 or and 0 are within 10% of each other )
Matchers.tests.cpp:<line number>: passed: WithinAbs(1., 0.)
Matchers.tests.cpp:<line number>: passed: WithinAbs(1., -1.), std::domain_error
Matchers.tests.cpp:<line number>: passed: WithinULP(1., 0)
Matchers.tests.cpp:<line number>: passed: WithinRel(1., 0.)
Matchers.tests.cpp:<line number>: passed: WithinRel(1., -0.2), std::domain_error
Matchers.tests.cpp:<line number>: passed: WithinRel(1., 1.), std::domain_error
Matchers.tests.cpp:<line number>: passed: 10.f, WithinRel(11.1f, 0.1f) for: 10.0f and 11.1 are within 10% of each other
Matchers.tests.cpp:<line number>: passed: 10.f, !WithinRel(11.2f, 0.1f) for: 10.0f not and 11.2 are within 10% of each other
Matchers.tests.cpp:<line number>: passed: 1.f, !WithinRel(0.f, 0.99f) for: 1.0f not and 0 are within 99% of each other
Matchers.tests.cpp:<line number>: passed: -0.f, WithinRel(0.f) for: -0.0f and 0 are within 0.00119209% of each other
Matchers.tests.cpp:<line number>: passed: v1, WithinRel(v2) for: 0.0f and 1.17549e-38 are within 0.00119209% of each other
Matchers.tests.cpp:<line number>: passed: 1.f, WithinAbs(1.f, 0) for: 1.0f is within 0.0 of 1.0
Matchers.tests.cpp:<line number>: passed: 0.f, WithinAbs(1.f, 1) for: 0.0f is within 1.0 of 1.0
Matchers.tests.cpp:<line number>: passed: 0.f, !WithinAbs(1.f, 0.99f) for: 0.0f not is within 0.9900000095 of 1.0
@@ -443,10 +457,14 @@ Matchers.tests.cpp:<line number>: passed: 1.f, WithinULP(1.f, 0) for: 1.0f is wi
Matchers.tests.cpp:<line number>: passed: -0.f, WithinULP(0.f, 0) for: -0.0f is within 0 ULPs of 0.0f ([0.00000000000000000, 0.00000000000000000])
Matchers.tests.cpp:<line number>: passed: 1.f, WithinAbs(1.f, 0.5) || WithinULP(1.f, 1) for: 1.0f ( is within 0.5 of 1.0 or is within 1 ULPs of 1.0f ([0.99999994039535522, 1.00000011920928955]) )
Matchers.tests.cpp:<line number>: passed: 1.f, WithinAbs(2.f, 0.5) || WithinULP(1.f, 0) for: 1.0f ( is within 0.5 of 2.0 or is within 0 ULPs of 1.0f ([1.00000000000000000, 1.00000000000000000]) )
Matchers.tests.cpp:<line number>: passed: 0.0001f, WithinAbs(0.f, 0.001f) || WithinRel(0.f, 0.1f) for: 0.0001f ( is within 0.001 of 0.0 or and 0 are within 10% of each other )
Matchers.tests.cpp:<line number>: passed: WithinAbs(1.f, 0.f)
Matchers.tests.cpp:<line number>: passed: WithinAbs(1.f, -1.f), std::domain_error
Matchers.tests.cpp:<line number>: passed: WithinULP(1.f, 0)
Matchers.tests.cpp:<line number>: passed: WithinULP(1.f, static_cast<uint64_t>(-1)), std::domain_error
Matchers.tests.cpp:<line number>: passed: WithinRel(1.f, 0.f)
Matchers.tests.cpp:<line number>: passed: WithinRel(1.f, -0.2f), std::domain_error
Matchers.tests.cpp:<line number>: passed: WithinRel(1.f, 1.f), std::domain_error
Generators.tests.cpp:<line number>: passed: i % 2 == 0 for: 0 == 0
Generators.tests.cpp:<line number>: passed: i % 2 == 0 for: 0 == 0
Generators.tests.cpp:<line number>: passed: i % 2 == 0 for: 0 == 0