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Diffstat (limited to 'test/functional/vimscript/operators_spec.lua')
| -rw-r--r-- | test/functional/vimscript/operators_spec.lua | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/test/functional/vimscript/operators_spec.lua b/test/functional/vimscript/operators_spec.lua new file mode 100644 index 0000000000..4d07bc1b05 --- /dev/null +++ b/test/functional/vimscript/operators_spec.lua @@ -0,0 +1,28 @@ +local helpers = require('test.functional.helpers')(after_each) +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) |