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47 lines
1.2 KiB
47 lines
1.2 KiB
// Copyright 2019 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 logging |
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import ( |
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"testing" |
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"time" |
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"github.com/stretchr/testify/require" |
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) |
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type counter int |
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func (c *counter) Log(...interface{}) error { |
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(*c)++ |
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return nil |
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} |
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func TestDedupe(t *testing.T) { |
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var c counter |
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d := Dedupe(&c, 100*time.Millisecond) |
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defer d.Stop() |
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// Log 10 times quickly, ensure they are deduped. |
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for i := 0; i < 10; i++ { |
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err := d.Log("msg", "hello") |
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require.NoError(t, err) |
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} |
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require.Equal(t, 1, int(c)) |
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// Wait, then log again, make sure it is logged. |
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time.Sleep(200 * time.Millisecond) |
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err := d.Log("msg", "hello") |
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require.NoError(t, err) |
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require.Equal(t, 2, int(c)) |
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}
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