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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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projects/SelfTest/Baselines/console.std.approved.txt
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@@ -1381,5 +1381,5 @@ due to unexpected exception with message:
===============================================================================
test cases: 303 | 229 passed | 70 failed | 4 failed as expected
assertions: 1597 | 1445 passed | 131 failed | 21 failed as expected
assertions: 1615 | 1463 passed | 131 failed | 21 failed as expected