5 "github.com/stretchr/testify/assert"
8 var logger = NewNullLogger()
10 func TestNullLoggerIsEfficient(t *testing.T) {
11 // Since statements like "IsWarn()", "IsError()", etc. are used to gate
12 // actually writing warning and error statements, the null logger will
13 // be faster and more efficient if it always returns false for these calls.
14 assert.False(t, logger.IsTrace())
15 assert.False(t, logger.IsDebug())
16 assert.False(t, logger.IsInfo())
17 assert.False(t, logger.IsWarn())
18 assert.False(t, logger.IsError())
21 func TestNullLoggerReturnsNullLoggers(t *testing.T) {
23 // Sometimes the logger is asked to return subloggers.
24 // These should also be a nullLogger.
26 subLogger := logger.With()
27 _, ok := subLogger.(*nullLogger)
30 subLogger = logger.Named("")
31 _, ok = subLogger.(*nullLogger)
34 subLogger = logger.ResetNamed("")
35 _, ok = subLogger.(*nullLogger)
39 func TestStandardLoggerIsntNil(t *testing.T) {
40 // Don't return a nil pointer for the standard logger,
41 // lest it cause a panic.
42 stdLogger := logger.StandardLogger(nil)
43 assert.NotEqual(t, nil, stdLogger)