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package command
import (
"bytes"
"os"
"path/filepath"
"testing"
"github.com/mitchellh/packer/builder/file"
"github.com/mitchellh/packer/packer"
)
func TestBuildOnlyFileCommaFlags(t *testing.T) {
c := &BuildCommand{
Meta: testMetaFile(t),
}
args := []string{
"-only=chocolate,vanilla",
filepath.Join(testFixture("build-only"), "template.json"),
}
defer cleanup()
if code := c.Run(args); code != 0 {
fatalCommand(t, c.Meta)
}
if !fileExists("chocolate.txt") {
t.Error("Expected to find chocolate.txt")
}
if !fileExists("vanilla.txt") {
t.Error("Expected to find vanilla.txt")
}
if fileExists("cherry.txt") {
t.Error("Expected NOT to find cherry.txt")
}
}
func TestBuildStdin(t *testing.T) {
c := &BuildCommand{
Meta: testMetaFile(t),
}
f, err := os.Open(filepath.Join(testFixture("build-only"), "template.json"))
if err != nil {
t.Fatal(err)
}
defer f.Close()
stdin := os.Stdin
os.Stdin = f
defer func() { os.Stdin = stdin }()
defer cleanup()
if code := c.Run([]string{"-"}); code != 0 {
fatalCommand(t, c.Meta)
}
if !fileExists("chocolate.txt") {
t.Error("Expected to find chocolate.txt")
}
if !fileExists("vanilla.txt") {
t.Error("Expected to find vanilla.txt")
}
if !fileExists("cherry.txt") {
t.Error("Expected to find cherry.txt")
}
}
func TestBuildOnlyFileMultipleFlags(t *testing.T) {
c := &BuildCommand{
Meta: testMetaFile(t),
}
args := []string{
"-only=chocolate",
"-only=cherry",
filepath.Join(testFixture("build-only"), "template.json"),
}
defer cleanup()
if code := c.Run(args); code != 0 {
fatalCommand(t, c.Meta)
}
if !fileExists("chocolate.txt") {
t.Error("Expected to find chocolate.txt")
}
if fileExists("vanilla.txt") {
t.Error("Expected NOT to find vanilla.txt")
}
if !fileExists("cherry.txt") {
t.Error("Expected to find cherry.txt")
}
}
func TestBuildExceptFileCommaFlags(t *testing.T) {
c := &BuildCommand{
Meta: testMetaFile(t),
}
args := []string{
"-except=chocolate",
filepath.Join(testFixture("build-only"), "template.json"),
}
defer cleanup()
if code := c.Run(args); code != 0 {
fatalCommand(t, c.Meta)
}
if fileExists("chocolate.txt") {
t.Error("Expected NOT to find chocolate.txt")
}
if !fileExists("vanilla.txt") {
t.Error("Expected to find vanilla.txt")
}
if !fileExists("cherry.txt") {
t.Error("Expected to find cherry.txt")
}
}
// fileExists returns true if the filename is found
func fileExists(filename string) bool {
if _, err := os.Stat(filename); err == nil {
return true
}
return false
}
// testCoreConfigBuilder creates a packer CoreConfig that has a file builder
// available. This allows us to test a builder that writes files to disk.
func testCoreConfigBuilder(t *testing.T) *packer.CoreConfig {
components := packer.ComponentFinder{
Builder: func(n string) (packer.Builder, error) {
return &file.Builder{}, nil
},
}
return &packer.CoreConfig{
Components: components,
}
}
// testMetaFile creates a Meta object that includes a file builder
func testMetaFile(t *testing.T) Meta {
var out, err bytes.Buffer
return Meta{
CoreConfig: testCoreConfigBuilder(t),
Ui: &packer.BasicUi{
Writer: &out,
ErrorWriter: &err,
},
}
}
func cleanup() {
os.RemoveAll("chocolate.txt")
os.RemoveAll("vanilla.txt")
os.RemoveAll("cherry.txt")
}
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