Added tests for packer.ExpandUser in packer/config_file_test.go.

This commit is contained in:
Ali Rizvi-Santiago 2018-12-03 21:11:40 -06:00
parent 194f31aba1
commit ecf45d4740
1 changed files with 161 additions and 0 deletions

161
packer/config_file_test.go Normal file
View File

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package packer
import (
"fmt"
"os/user"
"path/filepath"
"runtime"
"testing"
)
// Depending on the platform, find a valid username to use
func platform_user() string {
// XXX: We make an assumption here that there's an Administrator user
// on the windows platform, whereas the correct way is to use
// the api or to scrape `net user`.
if runtime.GOOS == "windows" {
return "Administrator"
}
return "root"
}
func homedir_current() (string, error) {
u, err := user.Current()
if err != nil {
return "", err
}
return u.HomeDir, nil
}
func homedir_user(username string) (string, error) {
u, err := user.Lookup(username)
if err != nil {
return "", err
}
return u.HomeDir, nil
}
// Begin the actual tests and stuff
func TestExpandUser_Empty(t *testing.T) {
var path, expected string
// Try an invalid user
path, err := ExpandUser("~invalid-user-that-should-not-exist")
if err == nil {
t.Fatalf("expected failure")
}
// Try an empty string
expected = ""
if path, err = ExpandUser(""); err != nil {
t.Fatalf("err: %s", err)
}
if path != expected {
t.Fatalf("err: %v != %v", path, expected)
}
// Try an absolute path
expected = "/etc/shadow"
if path, err = ExpandUser("/etc/shadow"); err != nil {
t.Fatalf("err: %s", err)
}
if path != expected {
t.Fatalf("err: %v != %v", path, expected)
}
// Try a relative path
expected = "tmp/foo"
if path, err = ExpandUser("tmp/foo"); err != nil {
t.Fatalf("err: %s", err)
}
if path != expected {
t.Fatalf("err: %v != %v", path, expected)
}
}
func TestExpandUser_Current(t *testing.T) {
var path, expected string
// Grab the current user's home directory to verify ExpandUser works
homedir, err := homedir_current()
if err != nil {
t.Fatalf("err: %s", err)
}
// Try just a tilde
expected = homedir
if path, err = ExpandUser("~"); err != nil {
t.Fatalf("err: %s", err)
}
if path != expected {
t.Fatalf("err: %v != %v", path, expected)
}
// Try as a directory
expected = filepath.Join(homedir, "")
if path, err = ExpandUser("~/"); err != nil {
t.Fatalf("err: %s", err)
}
if path != expected {
t.Fatalf("err: %v != %v", path, expected)
}
// Try as a file
expected = filepath.Join(homedir, "foo")
if path, err = ExpandUser("~/foo"); err != nil {
t.Fatalf("err: %s", err)
}
if path != expected {
t.Fatalf("err: %v != %v", path, expected)
}
}
func TestExpandUser_User(t *testing.T) {
var path, expected string
username := platform_user()
// Grab the current user's home directory to verify ExpandUser works
homedir, err := homedir_user(username)
if err != nil {
t.Fatalf("err: %s", err)
}
// Try just a tilde
expected = homedir
if path, err = ExpandUser(fmt.Sprintf("~%s", username)); err != nil {
t.Fatalf("err: %s", err)
}
if path != expected {
t.Fatalf("err: %v != %v", path, expected)
}
// Try as a directory
expected = filepath.Join(homedir, "")
if path, err = ExpandUser(fmt.Sprintf("~%s/", username)); err != nil {
t.Fatalf("err: %s", err)
}
if path != expected {
t.Fatalf("err: %v != %v", path, expected)
}
// Try as a file
expected = filepath.Join(homedir, "foo")
if path, err = ExpandUser(fmt.Sprintf("~%s/foo", username)); err != nil {
t.Fatalf("err: %s", err)
}
if path != expected {
t.Fatalf("err: %v != %v", path, expected)
}
}