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Files
fp-go/array/zip_test.go
Dr. Carsten Leue e4fd34a6b5 fix: add Zip and ZipWith to iterators
Signed-off-by: Dr. Carsten Leue <carsten.leue@de.ibm.com>
2023-08-03 13:27:41 +02:00

57 lines
1.4 KiB
Go

// Copyright (c) 2023 IBM Corp.
// All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package array
import (
"fmt"
"testing"
T "github.com/IBM/fp-go/tuple"
"github.com/stretchr/testify/assert"
)
func TestZipWith(t *testing.T) {
left := From(1, 2, 3)
right := From("a", "b", "c", "d")
res := ZipWith(left, right, func(l int, r string) string {
return fmt.Sprintf("%s%d", r, l)
})
assert.Equal(t, From("a1", "b2", "c3"), res)
}
func TestZip(t *testing.T) {
left := From(1, 2, 3)
right := From("a", "b", "c", "d")
res := Zip[string](left)(right)
assert.Equal(t, From(T.MakeTuple2("a", 1), T.MakeTuple2("b", 2), T.MakeTuple2("c", 3)), res)
}
func TestUnzip(t *testing.T) {
left := From(1, 2, 3)
right := From("a", "b", "c")
zipped := Zip[string](left)(right)
unzipped := Unzip(zipped)
assert.Equal(t, right, unzipped.F1)
assert.Equal(t, left, unzipped.F2)
}