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"{ Package: 'stx:goodies/regression' }"
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"{ NameSpace: RegressionTests }"
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TestCase subclass:#QDoubleTests
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instanceVariableNames:''
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classVariableNames:''
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poolDictionaries:''
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category:'tests-regression'
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!
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!QDoubleTests class methodsFor:'documentation'!
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documentation
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"
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documentation to be added.
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[author:]
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cg
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[instance variables:]
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[class variables:]
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[see also:]
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"
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! !
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!QDoubleTests methodsFor:'tests'!
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test_01_instance_creation
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|d|
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d := QDouble fromFloat:1.0.
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"
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self run:#test_01_instance_creation
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self new test_01_instance_creation
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"
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"Created: / 12-06-2017 / 17:03:46 / cg"
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"Modified: / 12-06-2017 / 18:41:14 / cg"
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!
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test_02_addition
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|d1 d2 l1 l2 sum_l q1 q2 sum_d sum_q|
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d1 := 1.0.
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d2 := 1.0e-16.
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sum_d := d1 + d2.
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"/ precision is lost with doubles!!
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self assert:( sum_d - 1.0 = 0.0 ).
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l1 := 1.0 asLongFloat.
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l2 := 1.0e-16 asLongFloat.
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sum_l := l1 + l2.
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"/ no precision is lost with long doubles!!
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self assert:( (sum_l - (1.0 asLongFloat)) > 0.0 ).
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q1 := QDouble fromFloat:1.0.
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q2 := QDouble fromFloat:1.0e-16.
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sum_q := q1 + q2.
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"
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self run:#test_02_addition
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self new test_02_addition
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"
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"Created: / 12-06-2017 / 17:05:07 / cg"
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"Modified: / 12-06-2017 / 18:41:25 / cg"
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!
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test_03_subtract
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|d1 d2 l1 l2 diff_l q1 q2 diff_d diff_q|
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d1 := 1.0.
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d2 := 0.99999.
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diff_d := d1 - d2.
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"/ precision is lost with doubles!!
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l1 := 1.0 asLongFloat.
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l2 := 0.99999 asLongFloat.
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diff_l := l1 - l2.
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"/ no precision is lost with long doubles!!
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q1 := QDouble fromFloat:1.0.
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q2 := QDouble fromFloat:0.99999.
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diff_q := q1 - q2.
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"
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self run:#test_03_subtract
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self new test_03_subtract
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"
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"Created: / 12-06-2017 / 23:12:00 / cg"
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! !
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!QDoubleTests class methodsFor:'documentation'!
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version
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^ '$Header$'
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!
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version_CVS
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^ '$Header$'
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! !
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