kubernetes/test/integration/framework/logger.go

// RedirectKlog modifies the global klog logger so that it writes via the given
// writer. This only works when different tests run sequentially.
//
// The returned cleanup function restores the previous state. Beware that it is
// not thread-safe, all goroutines which call klog must have been stopped.
func RedirectKlog(tb testing.TB, output io.Writer) func() { … }

// NewTBWriter creates an io.Writer which turns each write into a tb.Log call.
//
// Note that no attempts are made to determine the actual call site because
// our caller doesn't know about the TB instance and thus cannot mark itself
// as helper. Therefore the code here doesn't do it either and thus shows up
// as call site in the testing output. To avoid that, contextual logging
// and ktesting have to be used.
func NewTBWriter(tb testing.TB) io.Writer { … }

type testingWriter …

func (tw testingWriter) Write(data []byte) (int, error) { … }

var _ …