factor/core/math/intervals/intervals-tests.factor

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Factor
Executable File

USING: math.intervals kernel sequences words math math.order
arrays prettyprint tools.test random vocabs combinators
accessors ;
IN: math.intervals.tests
[ empty-interval ] [ 2 2 (a,b) ] unit-test
[ empty-interval ] [ 2 2 [a,b) ] unit-test
[ empty-interval ] [ 2 2 (a,b] ] unit-test
[ empty-interval ] [ 3 2 [a,b] ] unit-test
[ T{ interval f { 1 t } { 2 t } } ] [ 1 2 [a,b] ] unit-test
[ T{ interval f { 1 t } { 2 f } } ] [ 1 2 [a,b) ] unit-test
[ T{ interval f { 1 f } { 2 f } } ] [ 1 2 (a,b) ] unit-test
[ T{ interval f { 1 f } { 2 t } } ] [ 1 2 (a,b] ] unit-test
[ T{ interval f { 1 t } { 1 t } } ] [ 1 [a,a] ] unit-test
[ t ] [ { 3 t } { 3 f } endpoint< ] unit-test
[ t ] [ { 2 f } { 3 f } endpoint< ] unit-test
[ f ] [ { 3 f } { 3 t } endpoint< ] unit-test
[ t ] [ { 4 f } { 3 t } endpoint> ] unit-test
[ f ] [ { 3 f } { 3 t } endpoint> ] unit-test
[ empty-interval ] [ 1 2 [a,b] empty-interval interval+ ] unit-test
[ empty-interval ] [ empty-interval 1 2 [a,b] interval+ ] unit-test
[ t ] [
1 2 [a,b] -3 3 [a,b] interval+ -2 5 [a,b] =
] unit-test
[ t ] [
1 2 [a,b] -3 3 (a,b) interval+ -2 5 (a,b) =
] unit-test
[ empty-interval ] [ 1 2 [a,b] empty-interval interval- ] unit-test
[ empty-interval ] [ empty-interval 1 2 [a,b] interval- ] unit-test
[ t ] [
1 2 [a,b] 0 1 [a,b] interval- 0 2 [a,b] =
] unit-test
[ empty-interval ] [ 1 2 [a,b] empty-interval interval* ] unit-test
[ empty-interval ] [ empty-interval 1 2 [a,b] interval* ] unit-test
[ t ] [
1 2 [a,b] 0 4 [a,b] interval* 0 8 [a,b] =
] unit-test
[ t ] [
1 2 [a,b] -4 4 [a,b] interval* -8 8 [a,b] =
] unit-test
[ t ] [
1 2 [a,b] -0.5 0.5 [a,b] interval* -1 1 [a,b] =
] unit-test
[ t ] [
1 2 [a,b] -0.5 0.5 (a,b] interval* -1 1 (a,b] =
] unit-test
[ t ] [
-1 1 [a,b] -1 1 (a,b] interval* -1 1 [a,b] =
] unit-test
[ t ] [ 1 2 [a,b] dup empty-interval interval-union = ] unit-test
[ t ] [ empty-interval 1 2 [a,b] tuck interval-union = ] unit-test
[ t ] [
0 1 (a,b) 0 1 [a,b] interval-union 0 1 [a,b] =
] unit-test
[ t ] [
0 1 (a,b) 1 2 [a,b] interval-union 0 2 (a,b] =
] unit-test
[ f ] [ 0 1 (a,b) f interval-union ] unit-test
[ t ] [
0 1 (a,b) 0 1 [a,b] interval-intersect 0 1 (a,b) =
] unit-test
[ empty-interval ] [ 0 5 [a,b] -1 [a,a] interval-intersect ] unit-test
[ empty-interval ] [ 0 5 (a,b] 0 [a,a] interval-intersect ] unit-test
[ empty-interval ] [ empty-interval -1 [a,a] interval-intersect ] unit-test
[ empty-interval ] [ 0 5 (a,b] empty-interval interval-intersect ] unit-test
[ t ] [
empty-interval empty-interval interval-subset?
] unit-test
[ t ] [
empty-interval 0 1 [a,b] interval-subset?
] unit-test
[ t ] [
0 1 (a,b) 0 1 [a,b] interval-subset?
] unit-test
[ f ] [
0 0 1 (a,b) interval-contains?
] unit-test
[ t ] [
0.5 0 1 (a,b) interval-contains?
] unit-test
[ f ] [
1 0 1 (a,b) interval-contains?
] unit-test
[ empty-interval ] [ -1 1 (a,b) empty-interval interval/ ] unit-test
[ t ] [ -1 1 (a,b) -1 1 (a,b) interval/ [-inf,inf] = ] unit-test
[ t ] [ -1 1 (a,b) 0 1 (a,b) interval/ [-inf,inf] = ] unit-test
"math.ratios.private" vocab [
[ t ] [
-1 1 (a,b) 0.5 1 (a,b) interval/ -2 2 (a,b) =
] unit-test
] when
[ f ] [ empty-interval interval-singleton? ] unit-test
[ t ] [ 1 [a,a] interval-singleton? ] unit-test
[ f ] [ 1 1 [a,b) interval-singleton? ] unit-test
[ f ] [ 1 3 [a,b) interval-singleton? ] unit-test
[ f ] [ 1 1 (a,b) interval-singleton? ] unit-test
[ 2 ] [ 1 3 [a,b) interval-length ] unit-test
[ 0 ] [ empty-interval interval-length ] unit-test
[ t ] [ 0 5 [a,b] 5 [a,a] interval<= ] unit-test
[ incomparable ] [ empty-interval 5 [a,a] interval< ] unit-test
[ incomparable ] [ 5 [a,a] empty-interval interval< ] unit-test
[ incomparable ] [ 0 5 [a,b] 5 [a,a] interval< ] unit-test
[ t ] [ 0 5 [a,b) 5 [a,a] interval< ] unit-test
[ f ] [ 0 5 [a,b] -1 [a,a] interval< ] unit-test
[ incomparable ] [ 0 5 [a,b] 1 [a,a] interval< ] unit-test
[ t ] [ -1 1 (a,b) -1 [a,a] interval> ] unit-test
[ t ] [ -1 1 (a,b) -1 [a,a] interval>= ] unit-test
[ f ] [ -1 1 (a,b) -1 [a,a] interval< ] unit-test
[ f ] [ -1 1 (a,b) -1 [a,a] interval<= ] unit-test
[ t ] [ -1 1 (a,b] 1 [a,a] interval<= ] unit-test
[ t ] [ -1 1 (a,b] 1 2 [a,b] interval<= ] unit-test
[ incomparable ] [ -1 1 (a,b] empty-interval interval>= ] unit-test
[ incomparable ] [ empty-interval -1 1 (a,b] interval>= ] unit-test
[ incomparable ] [ -1 1 (a,b] 1 2 [a,b] interval>= ] unit-test
[ incomparable ] [ -1 1 (a,b] 1 2 [a,b] interval> ] unit-test
[ t ] [ -1 1 (a,b] 1 2 (a,b] interval<= ] unit-test
[ f ] [ 0 10 [a,b] 0 [a,a] interval< ] unit-test
[ f ] [ 0 10 [a,b] 10 [a,a] interval> ] unit-test
[ incomparable ] [ 0 [a,a] 0 10 [a,b] interval< ] unit-test
[ incomparable ] [ 10 [a,a] 0 10 [a,b] interval> ] unit-test
[ t ] [ 0 [a,a] 0 10 [a,b] interval<= ] unit-test
[ incomparable ] [ 0 [a,a] 0 10 [a,b] interval>= ] unit-test
[ t ] [ 0 10 [a,b] 0 [a,a] interval>= ] unit-test
[ t ] [
418
418 423 [a,b)
79 893 (a,b]
interval-max
interval-contains?
] unit-test
[ t ] [ 1 100 [a,b] -1 1 [a,b] interval/i [-inf,inf] = ] unit-test
! Interval random tester
: random-element ( interval -- n )
dup to>> first over from>> first tuck - random +
2dup swap interval-contains? [
nip
] [
drop random-element
] if ;
: random-interval ( -- interval )
2000 random 1000 - dup 2 1000 random + +
1 random zero? [ [ neg ] bi@ swap ] when
4 random {
{ 0 [ [a,b] ] }
{ 1 [ [a,b) ] }
{ 2 [ (a,b) ] }
{ 3 [ (a,b] ] }
} case ;
: random-unary-op ( -- pair )
{
{ bitnot interval-bitnot }
{ abs interval-abs }
{ 2/ interval-2/ }
{ 1+ interval-1+ }
{ 1- interval-1- }
{ neg interval-neg }
}
"math.ratios.private" vocab [
{ recip interval-recip } suffix
] when
random ;
: unary-test ( -- ? )
random-interval random-unary-op ! 2dup . .
0 pick interval-contains? over first \ recip eq? and [
2drop t
] [
[ >r random-element ! dup .
r> first execute ] 2keep
second execute interval-contains?
] if ;
[ t ] [ 80000 [ drop unary-test ] all? ] unit-test
: random-binary-op ( -- pair )
{
{ + interval+ }
{ - interval- }
{ * interval* }
{ /i interval/i }
{ mod interval-mod }
{ rem interval-rem }
{ bitand interval-bitand }
{ bitor interval-bitor }
{ bitxor interval-bitxor }
{ shift interval-shift }
{ min interval-min }
{ max interval-max }
}
"math.ratios.private" vocab [
{ / interval/ } suffix
] when
random ;
: binary-test ( -- ? )
random-interval random-interval random-binary-op ! 3dup . . .
0 pick interval-contains? over first { / /i mod rem } member? and [
3drop t
] [
[ >r [ random-element ] bi@ ! 2dup . .
r> first execute ] 3keep
second execute interval-contains?
] if ;
[ t ] [ 80000 [ drop binary-test ] all? ] unit-test
: random-comparison ( -- pair )
{
{ < interval< }
{ <= interval<= }
{ > interval> }
{ >= interval>= }
} random ;
: comparison-test ( -- ? )
random-interval random-interval random-comparison
[ >r [ random-element ] bi@ r> first execute ] 3keep
second execute dup incomparable eq? [ 2drop t ] [ = ] if ;
[ t ] [ 40000 [ drop comparison-test ] all? ] unit-test
[ t ] [ -10 10 [a,b] 0 100 [a,b] assume> 0 10 (a,b] = ] unit-test
[ t ] [ -10 10 [a,b] 0 100 [a,b] assume>= 0 10 [a,b] = ] unit-test
[ t ] [ -10 10 [a,b] 0 100 [a,b] assume< -10 10 [a,b] = ] unit-test
[ t ] [ -10 10 [a,b] -100 0 [a,b] assume< -10 0 [a,b) = ] unit-test
[ t ] [ -10 10 [a,b] -100 0 [a,b] assume<= -10 0 [a,b] = ] unit-test
[ t ] [ -10 10 [a,b] 0 100 [a,b] assume<= -10 10 [a,b] = ] unit-test
[ t ] [ -10 10 [a,b] interval-abs 0 10 [a,b] = ] unit-test
! Test that commutative interval ops really are
: random-interval-or-empty ( -- )
10 random 0 = [ empty-interval ] [ random-interval ] if ;
: random-commutative-op ( -- op )
{
interval+ interval*
interval-bitor interval-bitand interval-bitxor
interval-max interval-min
} random ;
[ t ] [
80000 [
drop
random-interval-or-empty random-interval-or-empty
random-commutative-op
[ execute ] [ swapd execute ] 3bi =
] all?
] unit-test