mirrors/neovim
1
0
Fork 0
mirror of https://github.com/neovim/neovim.git synced 2025-10-26 12:27:24 +00:00
Code Issues Packages Projects Releases Wiki Activity

eval: Return different values when dividing by zero

Browse Source 
Fixes #3263
This commit is contained in:
ZyX
2015-12-26 01:18:14 +03:00
parent 2873a17c55
commit b2ea083eeb
2 changed files with 43 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files

28
test/functional/eval/operators_spec.lua Normal file
View File

@@ -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)