CopyDir copies the content of the 'source' directory into the 'destination' directory.

FreePort returns a free IP (UDP/TCP) port.

FreePortListener returns a net.Listener on any free port on 127.0.0.1.

NewBaseTest creates a base test object that can be embedded in other tests.

PortListener returns a net.Listener on the given port on 127.0.0.1 If port is 0, a random free port will be used.

Removes the given directory and all of its content.

TestDir creates a new, unique test directory with the given prefix in default temp directory of the platform.

WaitUserTouch waits for user input by watching the file $TMPDIR/test-continue for a change of the last modified time.