factor/library/test/combinators.factor

IN: temporary
USING: alien errors strings ;
USE: kernel
USE: math
USE: test
USE: io
USE: prettyprint
USE: namespaces

[ slip ] unit-test-fails
[ 1 slip ] unit-test-fails
[ 1 2 slip ] unit-test-fails
[ 1 2 3 slip ] unit-test-fails

[ 5 ] [ [ 2 2 + ] 1 slip + ] unit-test

[ [ ] keep ] unit-test-fails

[ 6 ] [ 2 [ sq ] keep + ] unit-test

[ [ ] 2keep ] unit-test-fails
[ 1 [ ] 2keep ] unit-test-fails
[ 3 1 2 ] [ 1 2 [ 2drop 3 ] 2keep ] unit-test

[ 0 ] [ f [ sq ] [ 0 ] if* ] unit-test
[ 4 ] [ 2 [ sq ] [ 0 ] if* ] unit-test

[ 0 ] [ f [ 0 ] unless* ] unit-test
[ t ] [ t [ "Hello" ] unless* ] unit-test

[ "2\n" ] [ [ 1 2 [ . ] [ sq . ] ?if ] string-out ] unit-test
[ "9\n" ] [ [ 3 f [ . ] [ sq . ] ?if ] string-out ] unit-test

[ "even" ] [
    2 {
        { [ dup 2 mod 0 = ] [ drop "even" ] }
        { [ dup 2 mod 1 = ] [ drop "odd" ] }
    } cond
] unit-test

[ "odd" ] [
    3 {
        { [ dup 2 mod 0 = ] [ drop "even" ] }
        { [ dup 2 mod 1 = ] [ drop "odd" ] }
    } cond
] unit-test

[ "neither" ] [
    3 {
        { [ dup string? ] [ drop "string" ] }
        { [ dup float? ] [ drop "float" ] }
        { [ dup alien? ] [ drop "alien" ] }
        { [ t ] [ drop "neither" ] }
    } cond
] unit-test

[ ] [
    [
        [ drop ] catch drop
        [ drop ] catch drop
    ] keep-datastack
] unit-test