factor/extra/multi-methods/tests/syntax.factor

66 lines
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Factor

USING: multi-methods tools.test math sequences namespaces system
kernel strings definitions prettyprint debugger arrays
hashtables continuations classes assocs accessors see ;
RENAME: GENERIC: multi-methods => multi-methods:GENERIC:
IN: multi-methods.tests
multi-methods:GENERIC: first-test ( -- )
[ t ] [ \ first-test generic? ] unit-test
MIXIN: thing
SINGLETON: paper INSTANCE: paper thing
SINGLETON: scissors INSTANCE: scissors thing
SINGLETON: rock INSTANCE: rock thing
multi-methods:GENERIC: beats? ( obj1 obj2 -- ? )
METHOD: beats? { paper scissors } 2drop t ;
METHOD: beats? { scissors rock } 2drop t ;
METHOD: beats? { rock paper } 2drop t ;
METHOD: beats? { thing thing } 2drop f ;
: play ( obj1 obj2 -- ? ) beats? ;
[ { } 3 play ] must-fail
[ t ] [ error get no-method? ] unit-test
[ ] [ error get error. ] unit-test
[ { { } 3 } ] [ error get arguments>> ] unit-test
[ t ] [ paper scissors play ] unit-test
[ f ] [ scissors paper play ] unit-test
[ t ] [ { beats? paper scissors } method-spec? ] unit-test
[ ] [ { beats? paper scissors } see ] unit-test
SYMBOL: some-var
multi-methods:GENERIC: hook-test ( obj -- obj )
METHOD: hook-test { array { some-var array } } reverse ;
METHOD: hook-test { { some-var array } } class-of ;
METHOD: hook-test { hashtable { some-var number } } assoc-size ;
{ 1 2 3 } some-var set
[ { f t t } ] [ { t t f } hook-test ] unit-test
[ fixnum ] [ 3 hook-test ] unit-test
5.0 some-var set
[ 0 ] [ H{ } hook-test ] unit-test
"error" some-var set
[ H{ } hook-test ] must-fail
[ t ] [ error get no-method? ] unit-test
[ { H{ } "error" } ] [ error get arguments>> ] unit-test
MIXIN: busted
TUPLE: busted-1 ;
TUPLE: busted-2 ; INSTANCE: busted-2 busted
TUPLE: busted-3 ;
multi-methods:GENERIC: busted-sort ( obj1 obj2 -- obj1 obj2 )
METHOD: busted-sort { busted-1 busted-2 } ;
METHOD: busted-sort { busted-2 busted-3 } ;
METHOD: busted-sort { busted busted } ;