// Copyright 2020 Envoyproxy 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 log import ( "log" "testing" "github.com/stretchr/testify/assert" ) func ExampleLoggerFuncs() { logger := log.Logger{} xdsLogger := LoggerFuncs{ DebugFunc: logger.Printf, InfoFunc: logger.Printf, WarnFunc: logger.Printf, ErrorFunc: logger.Printf, } xdsLogger.Debugf("debug") xdsLogger.Infof("info") xdsLogger.Warnf("warn") xdsLogger.Errorf("error") } func TestLoggerFuncs(t *testing.T) { debug := 0 info := 0 warn := 0 error := 0 xdsLogger := LoggerFuncs{ DebugFunc: func(string, ...interface{}) { debug++ }, InfoFunc: func(string, ...interface{}) { info++ }, WarnFunc: func(string, ...interface{}) { warn++ }, ErrorFunc: func(string, ...interface{}) { error++ }, } xdsLogger.Debugf("debug") xdsLogger.Infof("info") xdsLogger.Warnf("warn") xdsLogger.Errorf("error") assert.Equal(t, debug, 1) assert.Equal(t, info, 1) assert.Equal(t, warn, 1) assert.Equal(t, error, 1) } func TestNilLoggerFuncs(t *testing.T) { xdsLogger := LoggerFuncs{} // Just verifying that nothing panics. xdsLogger.Debugf("debug") xdsLogger.Infof("info") xdsLogger.Warnf("warn") xdsLogger.Errorf("error") } func TestDefaultLogger(t *testing.T) { logger := NewDefaultLogger() assert.NotNil(t, logger) }