func setup(t *testing.T) (packer.Ui, packer.Artifact, error) {
// Create fake UI and Cache
ui := packer.TestUi(t)
cache := &packer.FileCache{CacheDir: os.TempDir()}
// Create config for file builder
const fileConfig = `{"builders":[{"type":"file","target":"package.txt","content":"Hello world!"}]}`
tpl, err := template.Parse(strings.NewReader(fileConfig))
if err != nil {
return nil, nil, fmt.Errorf("Unable to parse setup configuration: %s", err)
}
// Prepare the file builder
builder := file.Builder{}
warnings, err := builder.Prepare(tpl.Builders["file"].Config)
if len(warnings) > 0 {
for _, warn := range warnings {
return nil, nil, fmt.Errorf("Configuration warning: %s", warn)
}
}
if err != nil {
return nil, nil, fmt.Errorf("Invalid configuration: %s", err)
}
// Run the file builder
artifact, err := builder.Run(ui, nil, cache)
if err != nil {
return nil, nil, fmt.Errorf("Failed to build artifact: %s", err)
}
return ui, artifact, err
}
// TestUploadDownload verifies that basic upload / download functionality works
func TestUploadDownload(t *testing.T) {
ui := packer.TestUi(t)
cache := &packer.FileCache{CacheDir: os.TempDir()}
tpl, err := template.Parse(strings.NewReader(dockerBuilderConfig))
if err != nil {
t.Fatalf("Unable to parse config: %s", err)
}
if os.Getenv("PACKER_ACC") == "" {
t.Skip("This test is only run with PACKER_ACC=1")
}
cmd := exec.Command("docker", "-v")
cmd.Run()
if !cmd.ProcessState.Success() {
t.Error("docker command not found; please make sure docker is installed")
}
// Setup the builder
builder := &Builder{}
warnings, err := builder.Prepare(tpl.Builders["docker"].Config)
if err != nil {
t.Fatalf("Error preparing configuration %s", err)
}
if len(warnings) > 0 {
t.Fatal("Encountered configuration warnings; aborting")
}
// Setup the provisioners
upload := &file.Provisioner{}
err = upload.Prepare(tpl.Provisioners[0].Config)
if err != nil {
t.Fatalf("Error preparing upload: %s", err)
}
download := &file.Provisioner{}
err = download.Prepare(tpl.Provisioners[1].Config)
if err != nil {
t.Fatalf("Error preparing download: %s", err)
}
// Preemptive cleanup. Honestly I don't know why you would want to get rid
// of my strawberry cake. It's so tasty! Do you not like cake? Are you a
// cake-hater? Or are you keeping all the cake all for yourself? So selfish!
defer os.Remove("my-strawberry-cake")
// Add hooks so the provisioners run during the build
hooks := map[string][]packer.Hook{}
hooks[packer.HookProvision] = []packer.Hook{
&packer.ProvisionHook{
Provisioners: []packer.Provisioner{
upload,
download,
},
},
}
hook := &packer.DispatchHook{Mapping: hooks}
// Run things
artifact, err := builder.Run(ui, hook, cache)
if err != nil {
t.Fatalf("Error running build %s", err)
}
// Preemptive cleanup
defer artifact.Destroy()
// Verify that the thing we downloaded is the same thing we sent up.
// Complain loudly if it isn't.
inputFile, err := ioutil.ReadFile("test-fixtures/onecakes/strawberry")
if err != nil {
t.Fatalf("Unable to read input file: %s", err)
}
outputFile, err := ioutil.ReadFile("my-strawberry-cake")
if err != nil {
t.Fatalf("Unable to read output file: %s", err)
}
if sha256.Sum256(inputFile) != sha256.Sum256(outputFile) {
t.Fatalf("Input and output files do not match\n"+
"Input:\n%s\nOutput:\n%s\n", inputFile, outputFile)
}
}
// TestLargeDownload verifies that files are the apporpriate size after being
// downloaded. This is to identify and fix the race condition in #2793. You may
// need to use github.com/cbednarski/rerun to verify since this problem occurs
// only intermittently.
func TestLargeDownload(t *testing.T) {
ui := packer.TestUi(t)
cache := &packer.FileCache{CacheDir: os.TempDir()}
tpl, err := template.Parse(strings.NewReader(dockerLargeBuilderConfig))
if err != nil {
t.Fatalf("Unable to parse config: %s", err)
}
if os.Getenv("PACKER_ACC") == "" {
t.Skip("This test is only run with PACKER_ACC=1")
}
cmd := exec.Command("docker", "-v")
cmd.Run()
if !cmd.ProcessState.Success() {
t.Error("docker command not found; please make sure docker is installed")
}
// Setup the builder
builder := &Builder{}
warnings, err := builder.Prepare(tpl.Builders["docker"].Config)
if err != nil {
t.Fatalf("Error preparing configuration %s", err)
}
if len(warnings) > 0 {
t.Fatal("Encountered configuration warnings; aborting")
}
// Setup the provisioners
shell := &shell.Provisioner{}
err = shell.Prepare(tpl.Provisioners[0].Config)
if err != nil {
t.Fatalf("Error preparing shell provisioner: %s", err)
}
downloadCupcake := &file.Provisioner{}
err = downloadCupcake.Prepare(tpl.Provisioners[1].Config)
if err != nil {
t.Fatalf("Error preparing downloadCupcake: %s", err)
}
downloadBigcake := &file.Provisioner{}
err = downloadBigcake.Prepare(tpl.Provisioners[2].Config)
if err != nil {
t.Fatalf("Error preparing downloadBigcake: %s", err)
}
// Preemptive cleanup.
defer os.Remove("cupcake")
defer os.Remove("bigcake")
// Add hooks so the provisioners run during the build
hooks := map[string][]packer.Hook{}
hooks[packer.HookProvision] = []packer.Hook{
&packer.ProvisionHook{
Provisioners: []packer.Provisioner{
shell,
downloadCupcake,
downloadBigcake,
},
},
}
hook := &packer.DispatchHook{Mapping: hooks}
// Run things
artifact, err := builder.Run(ui, hook, cache)
if err != nil {
t.Fatalf("Error running build %s", err)
}
// Preemptive cleanup
defer artifact.Destroy()
// Verify that the things we downloaded are the right size. Complain loudly
// if they are not.
//
// cupcake should be 2097152 bytes
// bigcake should be 104857600 bytes
cupcake, err := os.Stat("cupcake")
if err != nil {
t.Fatalf("Unable to stat cupcake file: %s", err)
}
cupcakeExpected := int64(2097152)
if cupcake.Size() != cupcakeExpected {
t.Errorf("Expected cupcake to be %d bytes; found %d", cupcakeExpected, cupcake.Size())
}
bigcake, err := os.Stat("bigcake")
if err != nil {
t.Fatalf("Unable to stat bigcake file: %s", err)
}
bigcakeExpected := int64(104857600)
if bigcake.Size() != bigcakeExpected {
t.Errorf("Expected bigcake to be %d bytes; found %d", bigcakeExpected, bigcake.Size())
}
// TODO if we can, calculate a sha inside the container and compare to the
// one we get after we pull it down. We will probably have to parse the log
// or ui output to do this because we use /dev/urandom to create the file.
// if sha256.Sum256(inputFile) != sha256.Sum256(outputFile) {
// t.Fatalf("Input and output files do not match\n"+
// "Input:\n%s\nOutput:\n%s\n", inputFile, outputFile)
// }
}