Initialize checks the environment and alters the timeout scale accordingly.

NewMockClock builds a new mock clock that provides control of time.

Sleep scales the sleep duration by $TEST_TIMEOUT_SCALE.

Timeout scales the provided duration by $TEST_TIMEOUT_SCALE.

Buffer is an implementation of zapcore.WriteSyncer that sends all writes to a bytes.Buffer.

A Discarder sends all writes to io.Discard.

FailWriter is a WriteSyncer that always returns an error on writes.

MockClock provides control over the time.

ShortWriter is a WriteSyncer whose write method never fails, but nevertheless fails to the last byte of the input.

A Syncer is a spy for the Sync portion of zapcore.WriteSyncer.