// Copyright 2010 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. package flag import ( "io" "os" ) // Additional routines compiled into the package only during testing. var DefaultUsage = Usage // ResetForTesting clears all flag state and sets the usage function as directed. // After calling ResetForTesting, parse errors in flag handling will not // exit the program. func ResetForTesting(usage func()) { CommandLine = NewFlagSet(os.Args[0], ContinueOnError) CommandLine.SetOutput(io.Discard) CommandLine.Usage = commandLineUsage Usage = usage }