mirror of https://github.com/prometheus/prometheus
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
58 lines
1.5 KiB
58 lines
1.5 KiB
// Copyright 2019 The Prometheus Authors |
|
// 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 logging |
|
|
|
import ( |
|
"bytes" |
|
"log/slog" |
|
"strings" |
|
"testing" |
|
"time" |
|
|
|
"github.com/prometheus/common/promslog" |
|
"github.com/stretchr/testify/require" |
|
) |
|
|
|
func TestDedupe(t *testing.T) { |
|
var buf bytes.Buffer |
|
d := Dedupe(promslog.New(&promslog.Config{Writer: &buf}), 100*time.Millisecond) |
|
dlog := slog.New(d) |
|
defer d.Stop() |
|
|
|
// Log 10 times quickly, ensure they are deduped. |
|
for i := 0; i < 10; i++ { |
|
dlog.Info("test", "hello", "world") |
|
} |
|
|
|
// Trim empty lines |
|
lines := []string{} |
|
for _, line := range strings.Split(buf.String(), "\n") { |
|
if line != "" { |
|
lines = append(lines, line) |
|
} |
|
} |
|
require.Len(t, lines, 1) |
|
|
|
// Wait, then log again, make sure it is logged. |
|
time.Sleep(200 * time.Millisecond) |
|
dlog.Info("test", "hello", "world") |
|
// Trim empty lines |
|
lines = []string{} |
|
for _, line := range strings.Split(buf.String(), "\n") { |
|
if line != "" { |
|
lines = append(lines, line) |
|
} |
|
} |
|
require.Len(t, lines, 2) |
|
}
|
|
|