59 lines
1.4 KiB
Factor
59 lines
1.4 KiB
Factor
USING: accessors generic kernel math math.order slots tools.test ;
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IN: classes.intersection.tests
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TUPLE: a ;
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TUPLE: a1 < a ; TUPLE: a2 < a ; TUPLE: a3 < a2 ;
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MIXIN: b
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INSTANCE: a3 b
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INSTANCE: a1 b
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INTERSECTION: c a2 b ;
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GENERIC: x ( a -- b )
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M: c x drop c ;
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M: a x drop a ;
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{ a } [ T{ a } x ] unit-test
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{ a } [ T{ a1 } x ] unit-test
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{ a } [ T{ a2 } x ] unit-test
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{ t } [ T{ a3 } c? ] unit-test
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{ t } [ T{ a3 } \ x effective-method M\ c x eq? nip ] unit-test
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{ c } [ T{ a3 } x ] unit-test
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! More complex case
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TUPLE: t1 ;
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TUPLE: t2 < t1 ; TUPLE: t3 < t1 ;
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TUPLE: t4 < t2 ; TUPLE: t5 < t2 ;
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UNION: m t4 t5 t3 ;
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INTERSECTION: i t2 m ;
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GENERIC: g ( a -- b )
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M: i g drop i ;
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M: t4 g drop t4 ;
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{ t4 } [ T{ t4 } g ] unit-test
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{ i } [ T{ t5 } g ] unit-test
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PREDICATE: odd-integer < integer odd? ;
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! [ TUPLE: omg { a intersection{ fixnum odd-integer } initial: 2 } ;" eval( -- ) ]
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! [ bad-initial-value? ] must-fail-with
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TUPLE: omg { a intersection{ fixnum odd-integer } initial: 1 } ;
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{ 1 } [ omg new a>> ] unit-test
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{ 3 } [ omg new 3 >>a a>> ] unit-test
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[ omg new 1.2 >>a a>> ] [ bad-slot-value? ] must-fail-with
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PREDICATE: odd/float-between-10-20 < union{ odd-integer float }
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10 20 between? ;
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{ t } [ 17 odd/float-between-10-20? ] unit-test
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{ t } [ 17.4 odd/float-between-10-20? ] unit-test
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{ f } [ 18 odd/float-between-10-20? ] unit-test
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{ f } [ 5 odd/float-between-10-20? ] unit-test
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{ f } [ 5.75 odd/float-between-10-20? ] unit-test
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