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/*
Copyright 2019 The Kubernetes Authors.
Copyright 2020 Intel Corporation.
SPDX-License-Identifier: Apache-2.0
*/
package ktesting_test
import (
"context"
"testing"
"k8s.io/klog/v2"
"k8s.io/klog/v2/ktesting"
)
func TestContextual(t *testing.T) {
var buffer ktesting.BufferTL
logger, ctx := ktesting.NewTestContext(&buffer)
doSomething(ctx)
// When contextual logging is disabled, the output goes to klog
// instead of the testing logger.
state := klog.CaptureState()
defer state.Restore()
klog.EnableContextualLogging(false)
doSomething(ctx)
testingLogger, ok := logger.GetSink().(ktesting.Underlier)
if !ok {
t.Fatal("Should have had a ktesting LogSink!?")
}
actual := testingLogger.GetBuffer().String()
if actual != "" {
t.Errorf("testinglogger should not have buffered, got:\n%s", actual)
}
actual = buffer.String()
actual = headerRe.ReplaceAllString(actual, "${1}xxx] ")
expected := `Ixxx] hello world
Ixxx] foo: hello also from me
`
if actual != expected {
t.Errorf("mismatch in captured output, expected:\n%s\ngot:\n%s\n", expected, actual)
}
}
func doSomething(ctx context.Context) {
logger := klog.FromContext(ctx)
logger.Info("hello world")
logger = logger.WithName("foo")
ctx = klog.NewContext(ctx, logger)
doSomeMore(ctx)
}
func doSomeMore(ctx context.Context) {
logger := klog.FromContext(ctx)
logger.Info("hello also from me")
}
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