35 lines
1008 B
Factor
35 lines
1008 B
Factor
USING: descriptive kernel math tools.test continuations prettyprint io.streams.string see
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math.ratios ;
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IN: descriptive.tests
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DESCRIPTIVE: divide ( num denom -- fraction ) / ;
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[ 3 ] [ 9 3 divide ] unit-test
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[
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T{ descriptive-error f
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{ { "num" 3 } { "denom" 0 } }
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T{ division-by-zero f 3 }
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divide
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}
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] [
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[ 3 0 divide ] [ ] recover
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] unit-test
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[ "USING: descriptive math ;\nIN: descriptive.tests\nDESCRIPTIVE: divide ( num denom -- fraction ) / ;\n" ]
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[ \ divide [ see ] with-string-writer ] unit-test
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DESCRIPTIVE:: divide* ( num denom -- fraction ) num denom / ;
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[ 3 ] [ 9 3 divide* ] unit-test
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[
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T{ descriptive-error f
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{ { "num" 3 } { "denom" 0 } }
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T{ division-by-zero f 3 }
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divide*
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}
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] [ [ 3 0 divide* ] [ ] recover ] unit-test
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[ "USING: descriptive math ;\nIN: descriptive.tests\nDESCRIPTIVE:: divide* ( num denom -- fraction ) num denom / ;\n" ] [ \ divide* [ see ] with-string-writer ] unit-test
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