| // 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 os_test |
| |
| import ( |
| . "os" |
| "testing" |
| ) |
| |
| // testGetenv gives us a controlled set of variables for testing Expand. |
| func testGetenv(s string) string { |
| switch s { |
| case "*": |
| return "all the args" |
| case "#": |
| return "NARGS" |
| case "$": |
| return "PID" |
| case "1": |
| return "ARGUMENT1" |
| case "HOME": |
| return "/usr/gopher" |
| case "H": |
| return "(Value of H)" |
| case "home_1": |
| return "/usr/foo" |
| case "_": |
| return "underscore" |
| } |
| return "" |
| } |
| |
| var expandTests = []struct { |
| in, out string |
| }{ |
| {"", ""}, |
| {"$*", "all the args"}, |
| {"$$", "PID"}, |
| {"${*}", "all the args"}, |
| {"$1", "ARGUMENT1"}, |
| {"${1}", "ARGUMENT1"}, |
| {"now is the time", "now is the time"}, |
| {"$HOME", "/usr/gopher"}, |
| {"$home_1", "/usr/foo"}, |
| {"${HOME}", "/usr/gopher"}, |
| {"${H}OME", "(Value of H)OME"}, |
| {"A$$$#$1$H$home_1*B", "APIDNARGSARGUMENT1(Value of H)/usr/foo*B"}, |
| } |
| |
| func TestExpand(t *testing.T) { |
| for _, test := range expandTests { |
| result := Expand(test.in, testGetenv) |
| if result != test.out { |
| t.Errorf("Expand(%q)=%q; expected %q", test.in, result, test.out) |
| } |
| } |
| } |