packer-cn/command/build_test.go

697 lines
16 KiB
Go

package command
import (
"bytes"
"fmt"
"io/ioutil"
"math"
"os"
"path/filepath"
"testing"
"github.com/google/go-cmp/cmp"
"github.com/hashicorp/packer/builder/file"
"github.com/hashicorp/packer/builder/null"
"github.com/hashicorp/packer/packer"
"github.com/hashicorp/packer/post-processor/manifest"
shell_local_pp "github.com/hashicorp/packer/post-processor/shell-local"
filep "github.com/hashicorp/packer/provisioner/file"
"github.com/hashicorp/packer/provisioner/shell"
shell_local "github.com/hashicorp/packer/provisioner/shell-local"
)
func TestBuild(t *testing.T) {
tc := []struct {
name string
args []string
expectedCode int
fileCheck
}{
{
name: "var-args: json - json varfile sets an apple env var",
args: []string{
"-var-file=" + filepath.Join(testFixture("var-arg"), "apple.json"),
filepath.Join(testFixture("var-arg"), "fruit_builder.json"),
},
fileCheck: fileCheck{expected: []string{"apple.txt"}},
},
{
name: "json - json varfile sets an apple env var, " +
"override with banana cli var",
args: []string{
"-var", "fruit=banana",
"-var-file=" + filepath.Join(testFixture("var-arg"), "apple.json"),
filepath.Join(testFixture("var-arg"), "fruit_builder.json"),
},
fileCheck: fileCheck{expected: []string{"banana.txt"}},
},
{
name: "var-args: json - arg sets a pear env var",
args: []string{
"-var=fruit=pear",
filepath.Join(testFixture("var-arg"), "fruit_builder.json"),
},
fileCheck: fileCheck{expected: []string{"pear.txt"}},
},
{
name: "var-args: json - inexistent var file errs",
args: []string{
"-var-file=" + filepath.Join(testFixture("var-arg"), "potato.json"),
filepath.Join(testFixture("var-arg"), "fruit_builder.json"),
},
expectedCode: 1,
fileCheck: fileCheck{notExpected: []string{"potato.txt"}},
},
{
name: "var-args: hcl - inexistent json var file errs",
args: []string{
"-var-file=" + filepath.Join(testFixture("var-arg"), "potato.json"),
testFixture("var-arg"),
},
expectedCode: 1,
fileCheck: fileCheck{notExpected: []string{"potato.txt"}},
},
{
name: "var-args: hcl - inexistent hcl var file errs",
args: []string{
"-var-file=" + filepath.Join(testFixture("var-arg"), "potato.hcl"),
testFixture("var-arg"),
},
expectedCode: 1,
fileCheck: fileCheck{notExpected: []string{"potato.hcl"}},
},
{
name: "var-args: hcl - auto varfile sets a chocolate env var",
args: []string{
testFixture("var-arg"),
},
fileCheck: fileCheck{expected: []string{"chocolate.txt"}},
},
{
name: "var-args: hcl - hcl varfile sets a apple env var",
args: []string{
"-var-file=" + filepath.Join(testFixture("var-arg"), "apple.hcl"),
testFixture("var-arg"),
},
fileCheck: fileCheck{expected: []string{"apple.txt"}},
},
{
name: "var-args: hcl - json varfile sets a apple env var",
args: []string{
"-var-file=" + filepath.Join(testFixture("var-arg"), "apple.json"),
testFixture("var-arg"),
},
fileCheck: fileCheck{expected: []string{"apple.txt"}},
},
{
name: "var-args: hcl - arg sets a tomato env var",
args: []string{
"-var=fruit=tomato",
testFixture("var-arg"),
},
fileCheck: fileCheck{expected: []string{"tomato.txt"}},
},
{
name: "build name: HCL",
args: []string{
"-parallel-builds=1", // to ensure order is kept
testFixture("build-name-and-type"),
},
fileCheck: fileCheck{
expectedContent: map[string]string{
"manifest.json": `{
"builds": [
{
"name": "test",
"builder_type": "null",
"files": null,
"artifact_id": "Null",
"packer_run_uuid": "",
"custom_data": null
},
{
"name": "potato",
"builder_type": "null",
"files": null,
"artifact_id": "Null",
"packer_run_uuid": "",
"custom_data": null
}
],
"last_run_uuid": ""
}`,
},
},
},
{
name: "build name: JSON except potato",
args: []string{
"-except=potato",
"-parallel-builds=1", // to ensure order is kept
filepath.Join(testFixture("build-name-and-type"), "all.json"),
},
fileCheck: fileCheck{
expected: []string{
"null.test.txt",
"null.potato.txt",
},
expectedContent: map[string]string{
"manifest.json": `{
"builds": [
{
"name": "test",
"builder_type": "null",
"files": null,
"artifact_id": "Null",
"packer_run_uuid": "",
"custom_data": null
}
],
"last_run_uuid": ""
}`,
},
},
},
{
name: "build name: JSON only potato",
args: []string{
"-only=potato",
"-parallel-builds=1", // to ensure order is kept
filepath.Join(testFixture("build-name-and-type"), "all.json"),
},
fileCheck: fileCheck{
expectedContent: map[string]string{
"manifest.json": `{
"builds": [
{
"name": "potato",
"builder_type": "null",
"files": null,
"artifact_id": "Null",
"packer_run_uuid": "",
"custom_data": null
}
],
"last_run_uuid": ""
}`,
},
},
},
}
for _, tt := range tc {
t.Run(tt.name, func(t *testing.T) {
defer tt.cleanup(t)
run(t, tt.args, tt.expectedCode)
tt.fileCheck.verify(t)
})
}
}
func TestBuildOnlyFileCommaFlags(t *testing.T) {
c := &BuildCommand{
Meta: testMetaFile(t),
}
args := []string{
"-parallel-builds=1",
"-only=chocolate,vanilla",
filepath.Join(testFixture("build-only"), "template.json"),
}
defer cleanup()
if code := c.Run(args); code != 0 {
fatalCommand(t, c.Meta)
}
for _, f := range []string{"chocolate.txt", "vanilla.txt",
"apple.txt", "peach.txt", "pear.txt", "unnamed.txt"} {
if !fileExists(f) {
t.Errorf("Expected to find %s", f)
}
}
if fileExists("cherry.txt") {
t.Error("Expected NOT to find cherry.txt")
}
if !fileExists("tomato.txt") {
t.Error("Expected to find tomato.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{"-parallel-builds=1", "-"}); code != 0 {
fatalCommand(t, c.Meta)
}
for _, f := range []string{"vanilla.txt", "cherry.txt", "chocolate.txt",
"unnamed.txt"} {
if !fileExists(f) {
t.Errorf("Expected to find %s", f)
}
}
}
func TestBuildOnlyFileMultipleFlags(t *testing.T) {
c := &BuildCommand{
Meta: testMetaFile(t),
}
args := []string{
"-parallel-builds=1",
"-only=chocolate",
"-only=cherry",
"-only=apple", // ignored
"-only=peach", // ignored
"-only=pear", // ignored
filepath.Join(testFixture("build-only"), "template.json"),
}
defer cleanup()
if code := c.Run(args); code != 0 {
fatalCommand(t, c.Meta)
}
for _, f := range []string{"vanilla.txt", "tomato.txt"} {
if fileExists(f) {
t.Errorf("Expected NOT to find %s", f)
}
}
for _, f := range []string{"chocolate.txt", "cherry.txt",
"apple.txt", "peach.txt", "pear.txt", "unnamed.txt"} {
if !fileExists(f) {
t.Errorf("Expected to find %s", f)
}
}
}
func TestBuildProvisionAndPosProcessWithBuildVariablesSharing(t *testing.T) {
c := &BuildCommand{
Meta: testMetaFile(t),
}
args := []string{
filepath.Join(testFixture("build-variable-sharing"), "template.json"),
}
files := []string{
"provisioner.Null.txt",
"post-processor.Null.txt",
}
defer cleanup(files...)
if code := c.Run(args); code != 0 {
fatalCommand(t, c.Meta)
}
for _, f := range files {
if !fileExists(f) {
t.Errorf("Expected to find %s", f)
}
}
}
func TestBuildEverything(t *testing.T) {
c := &BuildCommand{
Meta: testMetaFile(t),
}
args := []string{
"-parallel-builds=1",
`-except=`,
filepath.Join(testFixture("build-only"), "template.json"),
}
defer cleanup()
if code := c.Run(args); code != 0 {
fatalCommand(t, c.Meta)
}
for _, f := range []string{"chocolate.txt", "vanilla.txt", "tomato.txt",
"apple.txt", "cherry.txt", "pear.txt", "peach.txt", "unnamed.txt"} {
if !fileExists(f) {
t.Errorf("Expected to find %s", f)
}
}
}
func TestBuildExceptFileCommaFlags(t *testing.T) {
c := &BuildCommand{
Meta: testMetaFile(t),
}
args := []string{
"-parallel-builds=1",
"-except=chocolate,vanilla",
filepath.Join(testFixture("build-only"), "template.json"),
}
defer cleanup()
if code := c.Run(args); code != 0 {
fatalCommand(t, c.Meta)
}
for _, f := range []string{"chocolate.txt", "vanilla.txt", "tomato.txt",
"unnamed.txt"} {
if fileExists(f) {
t.Errorf("Expected NOT to find %s", f)
}
}
for _, f := range []string{"apple.txt", "cherry.txt", "pear.txt", "peach.txt"} {
if !fileExists(f) {
t.Errorf("Expected to find %s", f)
}
}
}
func testHCLOnlyExceptFlags(t *testing.T, args, present, notPresent []string) {
c := &BuildCommand{
Meta: testMetaFile(t),
}
defer cleanup()
finalArgs := []string{"-parallel-builds=1"}
finalArgs = append(finalArgs, args...)
finalArgs = append(finalArgs, testFixture("hcl-only-except"))
if code := c.Run(finalArgs); code != 0 {
fatalCommand(t, c.Meta)
}
for _, f := range notPresent {
if fileExists(f) {
t.Errorf("Expected NOT to find %s", f)
}
}
for _, f := range present {
if !fileExists(f) {
t.Errorf("Expected to find %s", f)
}
}
}
func TestBuildCommand_HCLOnlyExceptOptions(t *testing.T) {
tests := []struct {
args []string
present []string
notPresent []string
}{
{
[]string{"-only=chocolate"},
[]string{},
[]string{"chocolate.txt", "vanilla.txt", "cherry.txt"},
},
{
[]string{"-only=*chocolate*"},
[]string{"chocolate.txt"},
[]string{"vanilla.txt", "cherry.txt"},
},
{
[]string{"-except=*chocolate*"},
[]string{"vanilla.txt", "cherry.txt"},
[]string{"chocolate.txt"},
},
{
[]string{"-except=*ch*"},
[]string{"vanilla.txt"},
[]string{"chocolate.txt", "cherry.txt"},
},
{
[]string{"-only=*chocolate*", "-only=*vanilla*"},
[]string{"chocolate.txt", "vanilla.txt"},
[]string{"cherry.txt"},
},
{
[]string{"-except=*chocolate*", "-except=*vanilla*"},
[]string{"cherry.txt"},
[]string{"chocolate.txt", "vanilla.txt"},
},
{
[]string{"-only=file.chocolate"},
[]string{"chocolate.txt"},
[]string{"vanilla.txt", "cherry.txt"},
},
{
[]string{"-except=file.chocolate"},
[]string{"vanilla.txt", "cherry.txt"},
[]string{"chocolate.txt"},
},
}
for _, tt := range tests {
t.Run(fmt.Sprintf("%s", tt.args), func(t *testing.T) {
testHCLOnlyExceptFlags(t, tt.args, tt.present, tt.notPresent)
})
}
}
func TestBuildWithNonExistingBuilder(t *testing.T) {
c := &BuildCommand{
Meta: testMetaFile(t),
}
args := []string{
"-parallel-builds=1",
`-except=`,
filepath.Join(testFixture("build-only"), "not-found.json"),
}
defer cleanup()
if code := c.Run(args); code != 1 {
t.Errorf("Expected to find exit code 1, found %d", code)
}
if !fileExists("chocolate.txt") {
t.Errorf("Expected to find chocolate.txt")
}
if fileExists("vanilla.txt") {
t.Errorf("NOT expected to find vanilla.tx")
}
}
func run(t *testing.T, args []string, expectedCode int) {
t.Helper()
c := &BuildCommand{
Meta: testMetaFile(t),
}
if code := c.Run(args); code != expectedCode {
fatalCommand(t, c.Meta)
}
}
type fileCheck struct {
expected, notExpected []string
expectedContent map[string]string
}
func (fc fileCheck) cleanup(t *testing.T) {
for _, file := range fc.expectedFiles() {
t.Logf("removing %v", file)
if err := os.Remove(file); err != nil {
t.Errorf("failed to remove file %s: %v", file, err)
}
}
}
func (fc fileCheck) expectedFiles() []string {
expected := fc.expected
for file := range fc.expectedContent {
expected = append(expected, file)
}
return expected
}
func (fc fileCheck) verify(t *testing.T) {
for _, f := range fc.expectedFiles() {
if !fileExists(f) {
t.Errorf("Expected to find %s", f)
}
}
for _, f := range fc.notExpected {
if fileExists(f) {
t.Errorf("Expected to not find %s", f)
}
}
for file, expectedContent := range fc.expectedContent {
content, err := ioutil.ReadFile(file)
if err != nil {
t.Fatalf("ioutil.ReadFile: %v", err)
}
if diff := cmp.Diff(expectedContent, string(content)); diff != "" {
t.Errorf("content of %s differs: %s", file, diff)
}
}
}
// 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{
BuilderStore: packer.MapOfBuilder{
"file": func() (packer.Builder, error) { return &file.Builder{}, nil },
"null": func() (packer.Builder, error) { return &null.Builder{}, nil },
},
ProvisionerStore: packer.MapOfProvisioner{
"shell-local": func() (packer.Provisioner, error) { return &shell_local.Provisioner{}, nil },
"shell": func() (packer.Provisioner, error) { return &shell.Provisioner{}, nil },
"file": func() (packer.Provisioner, error) { return &filep.Provisioner{}, nil },
},
PostProcessorStore: packer.MapOfPostProcessor{
"shell-local": func() (packer.PostProcessor, error) { return &shell_local_pp.PostProcessor{}, nil },
"manifest": func() (packer.PostProcessor, error) { return &manifest.PostProcessor{}, 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(moreFiles ...string) {
os.RemoveAll("chocolate.txt")
os.RemoveAll("vanilla.txt")
os.RemoveAll("cherry.txt")
os.RemoveAll("apple.txt")
os.RemoveAll("peach.txt")
os.RemoveAll("pear.txt")
os.RemoveAll("tomato.txt")
os.RemoveAll("unnamed.txt")
os.RemoveAll("roses.txt")
os.RemoveAll("fuchsias.txt")
os.RemoveAll("lilas.txt")
os.RemoveAll("campanules.txt")
os.RemoveAll("ducky.txt")
os.RemoveAll("banana.txt")
for _, file := range moreFiles {
os.RemoveAll(file)
}
}
func TestBuildCommand_ParseArgs(t *testing.T) {
defaultMeta := testMetaFile(t)
type fields struct {
Meta Meta
}
type args struct {
args []string
}
tests := []struct {
fields fields
args args
wantCfg *BuildArgs
wantExitCode int
}{
{fields{defaultMeta},
args{[]string{"file.json"}},
&BuildArgs{
MetaArgs: MetaArgs{Path: "file.json"},
ParallelBuilds: math.MaxInt64,
Color: true,
},
0,
},
{fields{defaultMeta},
args{[]string{"-parallel-builds=10", "file.json"}},
&BuildArgs{
MetaArgs: MetaArgs{Path: "file.json"},
ParallelBuilds: 10,
Color: true,
},
0,
},
{fields{defaultMeta},
args{[]string{"-parallel-builds=1", "file.json"}},
&BuildArgs{
MetaArgs: MetaArgs{Path: "file.json"},
ParallelBuilds: 1,
Color: true,
},
0,
},
{fields{defaultMeta},
args{[]string{"-parallel-builds=5", "file.json"}},
&BuildArgs{
MetaArgs: MetaArgs{Path: "file.json"},
ParallelBuilds: 5,
Color: true,
},
0,
},
{fields{defaultMeta},
args{[]string{"-parallel-builds=1", "-parallel-builds=5", "otherfile.json"}},
&BuildArgs{
MetaArgs: MetaArgs{Path: "otherfile.json"},
ParallelBuilds: 5,
Color: true,
},
0,
},
}
for _, tt := range tests {
t.Run(fmt.Sprintf("%s", tt.args.args), func(t *testing.T) {
c := &BuildCommand{
Meta: tt.fields.Meta,
}
gotCfg, gotExitCode := c.ParseArgs(tt.args.args)
if diff := cmp.Diff(gotCfg, tt.wantCfg); diff != "" {
t.Fatalf("BuildCommand.ParseArgs() unexpected cfg %s", diff)
}
if gotExitCode != tt.wantExitCode {
t.Fatalf("BuildCommand.ParseArgs() gotExitCode = %v, want %v", gotExitCode, tt.wantExitCode)
}
})
}
}