mirror of git://gcc.gnu.org/git/gcc.git
97 lines
1.9 KiB
Go
97 lines
1.9 KiB
Go
// Copyright 2010 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package os_test
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import (
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. "os"
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"reflect"
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"strings"
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"testing"
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)
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// testGetenv gives us a controlled set of variables for testing Expand.
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func testGetenv(s string) string {
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switch s {
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case "*":
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return "all the args"
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case "#":
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return "NARGS"
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case "$":
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return "PID"
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case "1":
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return "ARGUMENT1"
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case "HOME":
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return "/usr/gopher"
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case "H":
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return "(Value of H)"
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case "home_1":
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return "/usr/foo"
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case "_":
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return "underscore"
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}
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return ""
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}
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var expandTests = []struct {
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in, out string
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}{
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{"", ""},
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{"$*", "all the args"},
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{"$$", "PID"},
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{"${*}", "all the args"},
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{"$1", "ARGUMENT1"},
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{"${1}", "ARGUMENT1"},
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{"now is the time", "now is the time"},
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{"$HOME", "/usr/gopher"},
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{"$home_1", "/usr/foo"},
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{"${HOME}", "/usr/gopher"},
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{"${H}OME", "(Value of H)OME"},
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{"A$$$#$1$H$home_1*B", "APIDNARGSARGUMENT1(Value of H)/usr/foo*B"},
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}
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func TestExpand(t *testing.T) {
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for _, test := range expandTests {
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result := Expand(test.in, testGetenv)
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if result != test.out {
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t.Errorf("Expand(%q)=%q; expected %q", test.in, result, test.out)
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}
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}
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}
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func TestConsistentEnviron(t *testing.T) {
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e0 := Environ()
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for i := 0; i < 10; i++ {
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e1 := Environ()
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if !reflect.DeepEqual(e0, e1) {
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t.Fatalf("environment changed")
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}
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}
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}
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func TestUnsetenv(t *testing.T) {
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const testKey = "GO_TEST_UNSETENV"
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set := func() bool {
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prefix := testKey + "="
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for _, key := range Environ() {
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if strings.HasPrefix(key, prefix) {
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return true
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}
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}
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return false
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}
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if err := Setenv(testKey, "1"); err != nil {
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t.Fatalf("Setenv: %v", err)
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}
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if !set() {
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t.Error("Setenv didn't set TestUnsetenv")
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}
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if err := Unsetenv(testKey); err != nil {
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t.Fatalf("Unsetenv: %v", err)
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}
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if set() {
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t.Fatal("Unsetenv didn't clear TestUnsetenv")
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}
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}
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