112 lines
2.7 KiB
Go
112 lines
2.7 KiB
Go
package log_test
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import (
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"fmt"
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"testing"
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"time"
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"github.com/go-kit/kit/log"
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)
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func TestValueBinding(t *testing.T) {
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t.Parallel()
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var output []interface{}
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logger := log.Logger(log.LoggerFunc(func(keyvals ...interface{}) error {
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output = keyvals
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return nil
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}))
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start := time.Date(2015, time.April, 25, 0, 0, 0, 0, time.UTC)
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now := start
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mocktime := func() time.Time {
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now = now.Add(time.Second)
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return now
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}
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lc := log.NewContext(logger).With("ts", log.Timestamp(mocktime), "caller", log.DefaultCaller)
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lc.Log("foo", "bar")
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timestamp, ok := output[1].(time.Time)
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if !ok {
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t.Fatalf("want time.Time, have %T", output[1])
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}
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if want, have := start.Add(time.Second), timestamp; want != have {
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t.Errorf("output[1]: want %v, have %v", want, have)
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}
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if want, have := "value_test.go:29", fmt.Sprint(output[3]); want != have {
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t.Errorf("output[3]: want %s, have %s", want, have)
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}
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// A second attempt to confirm the bindings are truly dynamic.
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lc.Log("foo", "bar")
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timestamp, ok = output[1].(time.Time)
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if !ok {
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t.Fatalf("want time.Time, have %T", output[1])
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}
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if want, have := start.Add(2*time.Second), timestamp; want != have {
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t.Errorf("output[1]: want %v, have %v", want, have)
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}
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if want, have := "value_test.go:42", fmt.Sprint(output[3]); want != have {
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t.Errorf("output[3]: want %s, have %s", want, have)
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}
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}
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func TestValueBinding_loggingZeroKeyvals(t *testing.T) {
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t.Parallel()
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var output []interface{}
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logger := log.Logger(log.LoggerFunc(func(keyvals ...interface{}) error {
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output = keyvals
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return nil
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}))
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start := time.Date(2015, time.April, 25, 0, 0, 0, 0, time.UTC)
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now := start
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mocktime := func() time.Time {
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now = now.Add(time.Second)
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return now
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}
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logger = log.NewContext(logger).With("ts", log.Timestamp(mocktime))
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logger.Log()
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timestamp, ok := output[1].(time.Time)
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if !ok {
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t.Fatalf("want time.Time, have %T", output[1])
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}
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if want, have := start.Add(time.Second), timestamp; want != have {
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t.Errorf("output[1]: want %v, have %v", want, have)
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}
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// A second attempt to confirm the bindings are truly dynamic.
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logger.Log()
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timestamp, ok = output[1].(time.Time)
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if !ok {
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t.Fatalf("want time.Time, have %T", output[1])
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}
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if want, have := start.Add(2*time.Second), timestamp; want != have {
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t.Errorf("output[1]: want %v, have %v", want, have)
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}
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}
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func BenchmarkValueBindingTimestamp(b *testing.B) {
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logger := log.NewNopLogger()
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lc := log.NewContext(logger).With("ts", log.DefaultTimestamp)
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b.ReportAllocs()
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b.ResetTimer()
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for i := 0; i < b.N; i++ {
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lc.Log("k", "v")
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}
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}
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func BenchmarkValueBindingCaller(b *testing.B) {
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logger := log.NewNopLogger()
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lc := log.NewContext(logger).With("caller", log.DefaultCaller)
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b.ReportAllocs()
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b.ResetTimer()
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for i := 0; i < b.N; i++ {
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lc.Log("k", "v")
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}
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}
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