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| author | ZyX <kp-pav@yandex.ru> | 2015-12-26 01:18:14 +0300 |
|---|---|---|
| committer | ZyX <kp-pav@yandex.ru> | 2016-02-02 00:54:00 +0300 |
| commit | b2ea083eeba5a99b90e554ad0023f0d54a21b7fe (patch) | |
| tree | b7680ff51bfee924219ef14521302e8f194bb32d /test/functional/eval/operators_spec.lua | |
| parent | 2873a17c55b3a056e80da54bd22af625f5891417 (diff) | |
| download | rneovim-b2ea083eeba5a99b90e554ad0023f0d54a21b7fe.tar.gz rneovim-b2ea083eeba5a99b90e554ad0023f0d54a21b7fe.tar.bz2 rneovim-b2ea083eeba5a99b90e554ad0023f0d54a21b7fe.zip | |
eval: Return different values when dividing by zero
Fixes #3263
Diffstat (limited to 'test/functional/eval/operators_spec.lua')
| -rw-r--r-- | test/functional/eval/operators_spec.lua | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/test/functional/eval/operators_spec.lua b/test/functional/eval/operators_spec.lua new file mode 100644 index 0000000000..bc9a17935c --- /dev/null +++ b/test/functional/eval/operators_spec.lua @@ -0,0 +1,28 @@ +local helpers = require('test.functional.helpers') +local eq = helpers.eq +local eval = helpers.eval +local clear = helpers.clear + +describe('Division operator', function() + before_each(clear) + + it('returns infinity on {positive}/0.0', function() + eq('str2float(\'inf\')', eval('string(1.0/0.0)')) + eq('str2float(\'inf\')', eval('string(1.0e-100/0.0)')) + eq('str2float(\'inf\')', eval('string(1.0e+100/0.0)')) + eq('str2float(\'inf\')', eval('string((1.0/0.0)/0.0)')) + end) + + it('returns -infinity on {negative}/0.0', function() + eq('-str2float(\'inf\')', eval('string((-1.0)/0.0)')) + eq('-str2float(\'inf\')', eval('string((-1.0e-100)/0.0)')) + eq('-str2float(\'inf\')', eval('string((-1.0e+100)/0.0)')) + eq('-str2float(\'inf\')', eval('string((-1.0/0.0)/0.0)')) + end) + + it('returns NaN on 0.0/0.0', function() + eq('str2float(\'nan\')', eval('string(0.0/0.0)')) + eq('str2float(\'nan\')', eval('string(-(0.0/0.0))')) + eq('str2float(\'nan\')', eval('string((-0.0)/0.0)')) + end) +end) |