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40 lines
1.3 KiB
Go
40 lines
1.3 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 readerioeither
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import (
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"context"
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"testing"
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A "github.com/IBM/fp-go/array"
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ET "github.com/IBM/fp-go/either"
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F "github.com/IBM/fp-go/function"
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"github.com/stretchr/testify/assert"
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)
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func TestTraverseArray(t *testing.T) {
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f := TraverseArray(func(a string) ReaderIOEither[context.Context, string, string] {
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if len(a) > 0 {
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return Right[context.Context, string](a + a)
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}
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return Left[context.Context, string, string]("e")
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})
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ctx := context.Background()
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assert.Equal(t, ET.Right[string](A.Empty[string]()), F.Pipe1(A.Empty[string](), f)(ctx)())
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assert.Equal(t, ET.Right[string]([]string{"aa", "bb"}), F.Pipe1([]string{"a", "b"}, f)(ctx)())
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assert.Equal(t, ET.Left[[]string]("e"), F.Pipe1([]string{"a", ""}, f)(ctx)())
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}
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