86 lines
2.4 KiB
Factor
86 lines
2.4 KiB
Factor
USING: inverse tools.test arrays math kernel sequences
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math.functions math.constants continuations ;
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IN: inverse-tests
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[ 2 ] [ { 3 2 } [ 3 swap 2array ] undo ] unit-test
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[ { 3 4 } [ dup 2array ] undo ] must-fail
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TUPLE: foo bar baz ;
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C: <foo> foo
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[ 1 2 ] [ 1 2 <foo> [ <foo> ] undo ] unit-test
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: 2same ( x -- {x,x} ) dup 2array ;
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[ t ] [ { 3 3 } [ 2same ] matches? ] unit-test
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[ f ] [ { 3 4 } [ 2same ] matches? ] unit-test
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[ [ 2same ] matches? ] must-fail
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: something ( array -- num )
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{
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{ [ dup 1+ 2array ] [ 3 * ] }
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{ [ 3array ] [ + + ] }
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} switch ;
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[ 5 ] [ { 1 2 2 } something ] unit-test
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[ 6 ] [ { 2 3 } something ] unit-test
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[ { 1 } something ] must-fail
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[ 1 2 [ eq? ] undo ] must-fail
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: f>c ( *fahrenheit -- *celsius )
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32 - 1.8 / ;
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[ { 212.0 32.0 } ] [ { 100 0 } [ [ f>c ] map ] undo ] unit-test
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[ { t t f } ] [ { t f 1 } [ [ >boolean ] matches? ] map ] unit-test
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[ { t f } ] [ { { 1 2 3 } 4 } [ [ >array ] matches? ] map ] unit-test
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[ 9 9 ] [ 3 [ 1/2 ^ ] undo 3 [ sqrt ] undo ] unit-test
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[ 5 ] [ 6 5 - [ 6 swap - ] undo ] unit-test
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[ 6 ] [ 6 5 - [ 5 - ] undo ] unit-test
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TUPLE: cons car cdr ;
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C: <cons> cons
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TUPLE: nil ;
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C: <nil> nil
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: list-sum ( list -- sum )
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{
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{ [ <cons> ] [ list-sum + ] }
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{ [ <nil> ] [ 0 ] }
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[ "Malformed list" throw ]
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} switch ;
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[ 10 ] [ 1 2 3 4 <nil> <cons> <cons> <cons> <cons> list-sum ] unit-test
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[ ] [ <nil> [ <nil> ] undo ] unit-test
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[ 1 2 ] [ 1 2 <cons> [ <cons> ] undo ] unit-test
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[ t ] [ 1 2 <cons> [ <cons> ] matches? ] unit-test
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[ f ] [ 1 2 <cons> [ <foo> ] matches? ] unit-test
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[ "Malformed list" ] [ [ f list-sum ] [ ] recover ] unit-test
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: empty-cons ( -- cons ) cons new ;
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: cons* ( cdr car -- cons ) cons boa ;
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[ ] [ T{ cons f f f } [ empty-cons ] undo ] unit-test
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[ 1 2 ] [ 1 2 <cons> [ cons* ] undo ] unit-test
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[ t ] [ pi [ pi ] matches? ] unit-test
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[ 0.0 ] [ 0.0 pi + [ pi + ] undo ] unit-test
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[ ] [ 3 [ _ ] undo ] unit-test
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[ 2.0 ] [ 2 3 ^ [ 3 ^ ] undo ] unit-test
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[ 3.0 ] [ 2 3 ^ [ 2 swap ^ ] undo ] unit-test
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[ { 1 } ] [ { 1 2 3 } [ { 2 3 } append ] undo ] unit-test
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[ { 3 } ] [ { 1 2 3 } [ { 1 2 } prepend ] undo ] unit-test
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[ { 1 2 3 } [ { 1 2 } append ] undo ] must-fail
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[ { 1 2 3 } [ { 2 3 } prepend ] undo ] must-fail
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[ [ sq ] ] [ [ sqrt ] [undo] ] unit-test
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[ [ sqrt ] ] [ [ sq ] [undo] ] unit-test
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[ [ not ] ] [ [ not ] [undo] ] unit-test
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[ { 3 2 1 } ] [ { 1 2 3 } [ reverse ] undo ] unit-test
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