42 lines
1.2 KiB
Go
42 lines
1.2 KiB
Go
/*
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Copyright 2021 The Dapr Authors
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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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http://www.apache.org/licenses/LICENSE-2.0
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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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*/
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package simulate
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import (
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"errors"
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"sync/atomic"
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"github.com/dapr/components-contrib/tests/certification/flow"
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)
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func PeriodicError(ctx flow.Context, frequency uint64) func() error {
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counter := uint64(0)
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errorCount := uint64(0)
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return func() error {
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next := atomic.AddUint64(&counter, 1)
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// This behavior is standard to repro a failure of one message in a batch.
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if atomic.LoadUint64(&errorCount) < 2 || next%frequency == 0 {
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// First message errors just to give time for more messages to pile up.
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// Second error is to force an error in a batch.
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ec := atomic.AddUint64(&errorCount, 1)
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ctx.Logf("Simulating error %d", ec)
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return errors.New("simulated error")
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}
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return nil
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}
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}
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