go/src/internal/testlog/log.go

type Interface …

var logger …

// SetLogger sets the test logger implementation for the current process.
// It must be called only once, at process startup.
func SetLogger(impl Interface) { … }

// Logger returns the current test logger implementation.
// It returns nil if there is no logger.
func Logger() Interface { … }

// Getenv calls Logger().Getenv, if a logger has been set.
func Getenv(name string) { … }

// Open calls Logger().Open, if a logger has been set.
func Open(name string) { … }

// Stat calls Logger().Stat, if a logger has been set.
func Stat(name string) { … }