mirror of https://github.com/prometheus/prometheus
41 lines
1.1 KiB
Go
41 lines
1.1 KiB
Go
// Copyright 2024 The Prometheus 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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//
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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 prometheusremotewrite
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import (
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"context"
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"testing"
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"github.com/stretchr/testify/require"
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)
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func TestEveryNTimes(t *testing.T) {
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const n = 128
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ctx, cancel := context.WithCancel(context.Background())
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e := &everyNTimes{
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n: n,
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}
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for i := 0; i < n; i++ {
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require.NoError(t, e.checkContext(ctx))
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}
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cancel()
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for i := 0; i < n-1; i++ {
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require.NoError(t, e.checkContext(ctx))
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}
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require.EqualError(t, e.checkContext(ctx), context.Canceled.Error())
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// e should remember the error.
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require.EqualError(t, e.checkContext(ctx), context.Canceled.Error())
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}
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