2016-04-23 16:53:11 -07:00
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local helpers = require('test.functional.helpers')(after_each)
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2015-12-25 15:18:14 -07:00
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local eq = helpers.eq
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local eval = helpers.eval
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local clear = helpers.clear
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describe('Division operator', function()
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before_each(clear)
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it('returns infinity on {positive}/0.0', function()
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eq('str2float(\'inf\')', eval('string(1.0/0.0)'))
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eq('str2float(\'inf\')', eval('string(1.0e-100/0.0)'))
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eq('str2float(\'inf\')', eval('string(1.0e+100/0.0)'))
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eq('str2float(\'inf\')', eval('string((1.0/0.0)/0.0)'))
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end)
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it('returns -infinity on {negative}/0.0', function()
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eq('-str2float(\'inf\')', eval('string((-1.0)/0.0)'))
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eq('-str2float(\'inf\')', eval('string((-1.0e-100)/0.0)'))
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eq('-str2float(\'inf\')', eval('string((-1.0e+100)/0.0)'))
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eq('-str2float(\'inf\')', eval('string((-1.0/0.0)/0.0)'))
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end)
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it('returns NaN on 0.0/0.0', function()
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eq('str2float(\'nan\')', eval('string(0.0/0.0)'))
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eq('str2float(\'nan\')', eval('string(-(0.0/0.0))'))
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eq('str2float(\'nan\')', eval('string((-0.0)/0.0)'))
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end)
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end)
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