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75 lines
1.5 KiB
Go
75 lines
1.5 KiB
Go
// Copyright (c) 2023 IBM Corp.
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// All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package testing
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import (
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"testing"
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EQ "github.com/IBM/fp-go/eq"
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L "github.com/IBM/fp-go/internal/monad/testing"
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O "github.com/IBM/fp-go/option"
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)
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// AssertLaws asserts the apply monad laws for the `Either` monad
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func AssertLaws[A, B, C any](t *testing.T,
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eqa EQ.Eq[A],
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eqb EQ.Eq[B],
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eqc EQ.Eq[C],
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ab func(A) B,
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bc func(B) C,
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) func(a A) bool {
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return L.AssertLaws(t,
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O.Eq(eqa),
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O.Eq(eqb),
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O.Eq(eqc),
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O.Of[A],
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O.Of[B],
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O.Of[C],
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O.Of[func(A) A],
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O.Of[func(A) B],
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O.Of[func(B) C],
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O.Of[func(func(A) B) B],
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O.MonadMap[A, A],
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O.MonadMap[A, B],
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O.MonadMap[A, C],
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O.MonadMap[B, C],
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O.MonadMap[func(B) C, func(func(A) B) func(A) C],
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O.MonadChain[A, A],
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O.MonadChain[A, B],
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O.MonadChain[A, C],
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O.MonadChain[B, C],
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O.MonadAp[A, A],
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O.MonadAp[B, A],
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O.MonadAp[C, B],
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O.MonadAp[C, A],
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O.MonadAp[B, func(A) B],
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O.MonadAp[func(A) C, func(A) B],
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ab,
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bc,
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)
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}
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