forked from mirrors/statsd_exporter
110 lines
2.6 KiB
Go
110 lines
2.6 KiB
Go
// Copyright 2021 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 level
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import (
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"bytes"
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"strings"
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"testing"
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"github.com/go-kit/log"
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)
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func TestSetLogLevel(t *testing.T) {
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tests := []struct {
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name string
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level string
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logLevel Level
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wantErr bool
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}{
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{"wrong level", "foo", LevelInfo, true},
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{"level debug", "debug", LevelDebug, false},
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{"level info", "info", LevelInfo, false},
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{"level warn", "warn", LevelWarn, false},
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{"level error", "error", LevelError, false},
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}
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for _, tt := range tests {
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t.Run(tt.name, func(t *testing.T) {
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if err := SetLogLevel(tt.level); (err != nil) != tt.wantErr {
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t.Fatalf("Expected log level to be set successfully, but got %v", err)
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}
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if tt.logLevel != logLevel {
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t.Fatalf("Expected log level %v, but got %v", tt.logLevel, logLevel)
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}
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})
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}
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}
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func TestVariousLevels(t *testing.T) {
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tests := []struct {
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name string
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level string
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want string
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}{
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{
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"level debug",
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"debug",
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strings.Join([]string{
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"level=debug log=debug",
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"level=info log=info",
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"level=warn log=warn",
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"level=error log=error",
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}, "\n"),
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},
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{
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"level info",
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"info",
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strings.Join([]string{
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"level=info log=info",
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"level=warn log=warn",
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"level=error log=error",
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}, "\n"),
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},
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{
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"level warn",
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"warn",
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strings.Join([]string{
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"level=warn log=warn",
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"level=error log=error",
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}, "\n"),
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},
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{
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"level error",
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"error",
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strings.Join([]string{
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"level=error log=error",
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}, "\n"),
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},
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}
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for _, tt := range tests {
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t.Run(tt.name, func(t *testing.T) {
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var buf bytes.Buffer
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logger := log.NewLogfmtLogger(&buf)
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if err := SetLogLevel(tt.level); err != nil {
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t.Fatalf("Expected log level to be set successfully, but got %v", err)
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}
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Debug(logger).Log("log", "debug")
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Info(logger).Log("log", "info")
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Warn(logger).Log("log", "warn")
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Error(logger).Log("log", "error")
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got := strings.TrimSpace(buf.String())
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if tt.want != got {
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t.Fatalf("Expected log output %v, but got %v", tt.want, got)
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}
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})
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}
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}
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