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package utils
import (
"bytes"
"log"
"os"
"testing"
"time"
"github.com/stretchr/testify/require"
)
func TestLogLevelNothing(t *testing.T) {
b := &bytes.Buffer{}
log.SetOutput(b)
defer log.SetOutput(os.Stdout)
defer DefaultLogger.SetLogLevel(LogLevelNothing)
DefaultLogger.SetLogLevel(LogLevelNothing)
DefaultLogger.Debugf("debug")
DefaultLogger.Infof("info")
DefaultLogger.Errorf("err")
require.Empty(t, b.String())
}
func TestLogLevelError(t *testing.T) {
b := &bytes.Buffer{}
log.SetOutput(b)
defer log.SetOutput(os.Stdout)
defer DefaultLogger.SetLogLevel(LogLevelNothing)
DefaultLogger.SetLogLevel(LogLevelError)
DefaultLogger.Debugf("debug")
DefaultLogger.Infof("info")
DefaultLogger.Errorf("err")
require.Contains(t, b.String(), "err\n")
require.NotContains(t, b.String(), "info")
require.NotContains(t, b.String(), "debug")
}
func TestLogLevelInfo(t *testing.T) {
b := &bytes.Buffer{}
log.SetOutput(b)
defer log.SetOutput(os.Stdout)
defer DefaultLogger.SetLogLevel(LogLevelNothing)
DefaultLogger.SetLogLevel(LogLevelInfo)
DefaultLogger.Debugf("debug")
DefaultLogger.Infof("info")
DefaultLogger.Errorf("err")
require.Contains(t, b.String(), "err\n")
require.Contains(t, b.String(), "info\n")
require.NotContains(t, b.String(), "debug")
}
func TestLogLevelDebug(t *testing.T) {
b := &bytes.Buffer{}
log.SetOutput(b)
defer log.SetOutput(os.Stdout)
defer DefaultLogger.SetLogLevel(LogLevelNothing)
require.False(t, DefaultLogger.Debug())
DefaultLogger.SetLogLevel(LogLevelDebug)
require.True(t, DefaultLogger.Debug())
DefaultLogger.Debugf("debug")
DefaultLogger.Infof("info")
DefaultLogger.Errorf("err")
require.Contains(t, b.String(), "err\n")
require.Contains(t, b.String(), "info\n")
require.Contains(t, b.String(), "debug\n")
}
func TestNoTimestampWithEmptyFormat(t *testing.T) {
b := &bytes.Buffer{}
log.SetOutput(b)
defer log.SetOutput(os.Stdout)
defer DefaultLogger.SetLogLevel(LogLevelNothing)
DefaultLogger.SetLogLevel(LogLevelDebug)
DefaultLogger.SetLogTimeFormat("")
DefaultLogger.Debugf("debug")
require.Equal(t, "debug\n", b.String())
}
func TestAddTimestamp(t *testing.T) {
b := &bytes.Buffer{}
log.SetOutput(b)
defer log.SetOutput(os.Stdout)
defer DefaultLogger.SetLogLevel(LogLevelNothing)
format := "Jan 2, 2006"
DefaultLogger.SetLogTimeFormat(format)
DefaultLogger.SetLogLevel(LogLevelInfo)
DefaultLogger.Infof("info")
timestamp := b.String()[:b.Len()-6]
parsedTime, err := time.Parse(format, timestamp)
require.NoError(t, err)
require.WithinDuration(t, time.Now(), parsedTime, 25*time.Hour)
}
func TestLogAddPrefixes(t *testing.T) {
b := &bytes.Buffer{}
log.SetOutput(b)
defer log.SetOutput(os.Stdout)
defer DefaultLogger.SetLogLevel(LogLevelNothing)
DefaultLogger.SetLogLevel(LogLevelDebug)
// single prefix
prefixLogger := DefaultLogger.WithPrefix("prefix")
prefixLogger.Debugf("debug1")
require.Contains(t, b.String(), "prefix")
require.Contains(t, b.String(), "debug1")
// multiple prefixes
b.Reset()
prefixLogger1 := DefaultLogger.WithPrefix("prefix1")
prefixLogger2 := prefixLogger1.WithPrefix("prefix2")
prefixLogger2.Debugf("debug2")
require.Contains(t, b.String(), "prefix1")
require.Contains(t, b.String(), "prefix2")
require.Contains(t, b.String(), "debug2")
}
func TestLogLevelFromEnv(t *testing.T) {
testCases := []struct {
envValue string
expected LogLevel
}{
{"DEBUG", LogLevelDebug},
{"debug", LogLevelDebug},
{"INFO", LogLevelInfo},
{"ERROR", LogLevelError},
}
for _, tc := range testCases {
t.Setenv(logEnv, tc.envValue)
require.Equal(t, tc.expected, readLoggingEnv())
}
// invalid values
t.Setenv(logEnv, "")
require.Equal(t, LogLevelNothing, readLoggingEnv())
t.Setenv(logEnv, "asdf")
require.Equal(t, LogLevelNothing, readLoggingEnv())
}
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