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retry_test.go
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retry_test.go
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// 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 io
import (
"fmt"
"strings"
"testing"
"time"
R "github.com/IBM/fp-go/retry"
"github.com/stretchr/testify/assert"
)
var expLogBackoff = R.ExponentialBackoff(10)
// our retry policy with a 1s cap
var testLogPolicy = R.CapDelay(
2*time.Second,
R.Monoid.Concat(expLogBackoff, R.LimitRetries(20)),
)
func TestRetry(t *testing.T) {
action := func(status R.RetryStatus) IO[string] {
return Of(fmt.Sprintf("Retrying %d", status.IterNumber))
}
check := func(value string) bool {
return !strings.Contains(value, "5")
}
r := Retrying(testLogPolicy, action, check)
assert.Equal(t, "Retrying 5", r())
}