mirror of
https://github.com/IBM/fp-go.git
synced 2025-11-25 22:21:49 +02:00
66 lines
1.3 KiB
Go
66 lines
1.3 KiB
Go
|
package testing
|
||
|
|
|
||
|
|
import (
|
||
|
|
"testing"
|
||
|
|
|
||
|
|
EQ "github.com/IBM/fp-go/eq"
|
||
|
|
L "github.com/IBM/fp-go/internal/monad/testing"
|
||
|
|
M "github.com/IBM/fp-go/monoid"
|
||
|
|
WRT "github.com/IBM/fp-go/writer"
|
||
|
|
)
|
||
|
|
|
||
|
|
// AssertLaws asserts the apply monad laws for the `Either` monad
|
||
|
|
func AssertLaws[W, A, B, C any](t *testing.T,
|
||
|
|
m M.Monoid[W],
|
||
|
|
|
||
|
|
eqw EQ.Eq[W],
|
||
|
|
eqa EQ.Eq[A],
|
||
|
|
eqb EQ.Eq[B],
|
||
|
|
eqc EQ.Eq[C],
|
||
|
|
|
||
|
|
ab func(A) B,
|
||
|
|
bc func(B) C,
|
||
|
|
) func(a A) bool {
|
||
|
|
|
||
|
|
s := M.ToSemigroup(m)
|
||
|
|
|
||
|
|
return L.AssertLaws(t,
|
||
|
|
WRT.Eq(eqw, eqa),
|
||
|
|
WRT.Eq(eqw, eqb),
|
||
|
|
WRT.Eq(eqw, eqc),
|
||
|
|
|
||
|
|
WRT.Of[A](m),
|
||
|
|
WRT.Of[B](m),
|
||
|
|
WRT.Of[C](m),
|
||
|
|
|
||
|
|
WRT.Of[func(A) A](m),
|
||
|
|
WRT.Of[func(A) B](m),
|
||
|
|
WRT.Of[func(B) C](m),
|
||
|
|
WRT.Of[func(func(A) B) B](m),
|
||
|
|
|
||
|
|
WRT.MonadMap[func(A) A, W, A, A],
|
||
|
|
WRT.MonadMap[func(A) B, W, A, B],
|
||
|
|
WRT.MonadMap[func(A) C, W, A, C],
|
||
|
|
WRT.MonadMap[func(B) C, W, B, C],
|
||
|
|
|
||
|
|
WRT.MonadMap[func(func(B) C) func(func(A) B) func(A) C, W, func(B) C, func(func(A) B) func(A) C],
|
||
|
|
|
||
|
|
WRT.MonadChain[func(A) WRT.Writer[W, A], W, A, A](m),
|
||
|
|
WRT.MonadChain[func(A) WRT.Writer[W, B], W, A, B](m),
|
||
|
|
WRT.MonadChain[func(A) WRT.Writer[W, C], W, A, C](m),
|
||
|
|
WRT.MonadChain[func(B) WRT.Writer[W, C], W, B, C](m),
|
||
|
|
|
||
|
|
WRT.MonadAp[A, A](s),
|
||
|
|
WRT.MonadAp[B, A](s),
|
||
|
|
WRT.MonadAp[C, B](s),
|
||
|
|
WRT.MonadAp[C, A](s),
|
||
|
|
|
||
|
|
WRT.MonadAp[B, func(A) B](s),
|
||
|
|
WRT.MonadAp[func(A) C, func(A) B](s),
|
||
|
|
|
||
|
|
ab,
|
||
|
|
bc,
|
||
|
|
)
|
||
|
|
|
||
|
|
}
|