terraform/command/refresh_test.go

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package command
import (
"io/ioutil"
"os"
"path/filepath"
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"reflect"
"testing"
"github.com/hashicorp/terraform/terraform"
"github.com/mitchellh/cli"
)
func TestRefresh(t *testing.T) {
state := &terraform.State{
Resources: map[string]*terraform.ResourceState{
"test_instance.foo": &terraform.ResourceState{
ID: "bar",
Type: "test_instance",
},
},
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}
statePath := testStateFile(t, state)
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p := testProvider()
ui := new(cli.MockUi)
c := &RefreshCommand{
Meta: Meta{
ContextOpts: testCtxConfig(p),
Ui: ui,
},
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}
p.RefreshFn = nil
p.RefreshReturn = &terraform.ResourceState{ID: "yes"}
args := []string{
"-state", statePath,
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testFixturePath("refresh"),
}
if code := c.Run(args); code != 0 {
t.Fatalf("bad: %d\n\n%s", code, ui.ErrorWriter.String())
}
if !p.RefreshCalled {
t.Fatal("refresh should be called")
}
f, err := os.Open(statePath)
if err != nil {
t.Fatalf("err: %s", err)
}
newState, err := terraform.ReadState(f)
f.Close()
if err != nil {
t.Fatalf("err: %s", err)
}
actual := newState.Resources["test_instance.foo"]
expected := p.RefreshReturn
if !reflect.DeepEqual(actual, expected) {
t.Fatalf("bad: %#v", actual)
}
}
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func TestRefresh_badState(t *testing.T) {
p := testProvider()
ui := new(cli.MockUi)
c := &RefreshCommand{
Meta: Meta{
ContextOpts: testCtxConfig(p),
Ui: ui,
},
}
args := []string{
"-state", "i-should-not-exist-ever",
testFixturePath("refresh"),
}
if code := c.Run(args); code != 1 {
t.Fatalf("bad: %d\n\n%s", code, ui.ErrorWriter.String())
}
}
func TestRefresh_cwd(t *testing.T) {
cwd, err := os.Getwd()
if err != nil {
t.Fatalf("err: %s", err)
}
if err := os.Chdir(testFixturePath("refresh")); err != nil {
t.Fatalf("err: %s", err)
}
defer os.Chdir(cwd)
state := &terraform.State{
Resources: map[string]*terraform.ResourceState{
"test_instance.foo": &terraform.ResourceState{
ID: "bar",
Type: "test_instance",
},
},
}
statePath := testStateFile(t, state)
p := testProvider()
ui := new(cli.MockUi)
c := &RefreshCommand{
Meta: Meta{
ContextOpts: testCtxConfig(p),
Ui: ui,
},
}
p.RefreshFn = nil
p.RefreshReturn = &terraform.ResourceState{ID: "yes"}
args := []string{
"-state", statePath,
}
if code := c.Run(args); code != 0 {
t.Fatalf("bad: %d\n\n%s", code, ui.ErrorWriter.String())
}
if !p.RefreshCalled {
t.Fatal("refresh should be called")
}
f, err := os.Open(statePath)
if err != nil {
t.Fatalf("err: %s", err)
}
newState, err := terraform.ReadState(f)
f.Close()
if err != nil {
t.Fatalf("err: %s", err)
}
actual := newState.Resources["test_instance.foo"]
expected := p.RefreshReturn
if !reflect.DeepEqual(actual, expected) {
t.Fatalf("bad: %#v", actual)
}
}
func TestRefresh_defaultState(t *testing.T) {
originalState := &terraform.State{
Resources: map[string]*terraform.ResourceState{
"test_instance.foo": &terraform.ResourceState{
ID: "bar",
Type: "test_instance",
},
},
}
// Write the state file in a temporary directory with the
// default filename.
td, err := ioutil.TempDir("", "tf")
if err != nil {
t.Fatalf("err: %s", err)
}
statePath := filepath.Join(td, DefaultStateFilename)
f, err := os.Create(statePath)
if err != nil {
t.Fatalf("err: %s", err)
}
err = terraform.WriteState(originalState, f)
f.Close()
if err != nil {
t.Fatalf("err: %s", err)
}
// Change to that directory
cwd, err := os.Getwd()
if err != nil {
t.Fatalf("err: %s", err)
}
if err := os.Chdir(filepath.Dir(statePath)); err != nil {
t.Fatalf("err: %s", err)
}
defer os.Chdir(cwd)
p := testProvider()
ui := new(cli.MockUi)
c := &RefreshCommand{
Meta: Meta{
ContextOpts: testCtxConfig(p),
Ui: ui,
},
}
p.RefreshFn = nil
p.RefreshReturn = &terraform.ResourceState{ID: "yes"}
args := []string{
testFixturePath("refresh"),
}
if code := c.Run(args); code != 0 {
t.Fatalf("bad: %d\n\n%s", code, ui.ErrorWriter.String())
}
if !p.RefreshCalled {
t.Fatal("refresh should be called")
}
f, err = os.Open(statePath)
if err != nil {
t.Fatalf("err: %s", err)
}
newState, err := terraform.ReadState(f)
f.Close()
if err != nil {
t.Fatalf("err: %s", err)
}
actual := newState.Resources["test_instance.foo"]
expected := p.RefreshReturn
if !reflect.DeepEqual(actual, expected) {
t.Fatalf("bad: %#v", actual)
}
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f, err = os.Open(statePath + DefaultBackupExtention)
if err != nil {
t.Fatalf("err: %s", err)
}
backupState, err := terraform.ReadState(f)
f.Close()
if err != nil {
t.Fatalf("err: %s", err)
}
actual = backupState.Resources["test_instance.foo"]
expected = originalState.Resources["test_instance.foo"]
if !reflect.DeepEqual(actual, expected) {
t.Fatalf("bad: %#v", actual)
}
}
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func TestRefresh_outPath(t *testing.T) {
state := &terraform.State{
Resources: map[string]*terraform.ResourceState{
"test_instance.foo": &terraform.ResourceState{
ID: "bar",
Type: "test_instance",
},
},
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}
statePath := testStateFile(t, state)
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// Output path
outf, err := ioutil.TempFile("", "tf")
if err != nil {
t.Fatalf("err: %s", err)
}
outPath := outf.Name()
outf.Close()
os.Remove(outPath)
p := testProvider()
ui := new(cli.MockUi)
c := &RefreshCommand{
Meta: Meta{
ContextOpts: testCtxConfig(p),
Ui: ui,
},
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}
p.RefreshFn = nil
p.RefreshReturn = &terraform.ResourceState{ID: "yes"}
args := []string{
"-state", statePath,
"-state-out", outPath,
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testFixturePath("refresh"),
}
if code := c.Run(args); code != 0 {
t.Fatalf("bad: %d\n\n%s", code, ui.ErrorWriter.String())
}
f, err := os.Open(statePath)
if err != nil {
t.Fatalf("err: %s", err)
}
newState, err := terraform.ReadState(f)
f.Close()
if err != nil {
t.Fatalf("err: %s", err)
}
if !reflect.DeepEqual(newState, state) {
t.Fatalf("bad: %#v", newState)
}
f, err = os.Open(outPath)
if err != nil {
t.Fatalf("err: %s", err)
}
newState, err = terraform.ReadState(f)
f.Close()
if err != nil {
t.Fatalf("err: %s", err)
}
actual := newState.Resources["test_instance.foo"]
expected := p.RefreshReturn
if !reflect.DeepEqual(actual, expected) {
t.Fatalf("bad: %#v", actual)
}
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f, err = os.Open(outPath + DefaultBackupExtention)
if err != nil {
t.Fatalf("err: %s", err)
}
backupState, err := terraform.ReadState(f)
f.Close()
if err != nil {
t.Fatalf("err: %s", err)
}
if !reflect.DeepEqual(backupState, state) {
t.Fatalf("bad: %#v", backupState)
}
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}
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func TestRefresh_var(t *testing.T) {
state := &terraform.State{
Resources: map[string]*terraform.ResourceState{
"test_instance.foo": &terraform.ResourceState{
ID: "bar",
Type: "test_instance",
},
},
}
statePath := testStateFile(t, state)
p := testProvider()
ui := new(cli.MockUi)
c := &RefreshCommand{
Meta: Meta{
ContextOpts: testCtxConfig(p),
Ui: ui,
},
}
args := []string{
"-var", "foo=bar",
"-state", statePath,
testFixturePath("refresh-var"),
}
if code := c.Run(args); code != 0 {
t.Fatalf("bad: %d\n\n%s", code, ui.ErrorWriter.String())
}
if !p.ConfigureCalled {
t.Fatal("configure should be called")
}
if p.ConfigureConfig.Config["value"].(string) != "bar" {
t.Fatalf("bad: %#v", p.ConfigureConfig.Config)
}
}
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func TestRefresh_varFile(t *testing.T) {
state := &terraform.State{
Resources: map[string]*terraform.ResourceState{
"test_instance.foo": &terraform.ResourceState{
ID: "bar",
Type: "test_instance",
},
},
}
statePath := testStateFile(t, state)
p := testProvider()
ui := new(cli.MockUi)
c := &RefreshCommand{
Meta: Meta{
ContextOpts: testCtxConfig(p),
Ui: ui,
},
}
varFilePath := testTempFile(t)
if err := ioutil.WriteFile(varFilePath, []byte(refreshVarFile), 0644); err != nil {
t.Fatalf("err: %s", err)
}
args := []string{
"-var-file", varFilePath,
"-state", statePath,
testFixturePath("refresh-var"),
}
if code := c.Run(args); code != 0 {
t.Fatalf("bad: %d\n\n%s", code, ui.ErrorWriter.String())
}
if !p.ConfigureCalled {
t.Fatal("configure should be called")
}
if p.ConfigureConfig.Config["value"].(string) != "bar" {
t.Fatalf("bad: %#v", p.ConfigureConfig.Config)
}
}
func TestRefresh_varFileDefault(t *testing.T) {
state := &terraform.State{
Resources: map[string]*terraform.ResourceState{
"test_instance.foo": &terraform.ResourceState{
ID: "bar",
Type: "test_instance",
},
},
}
statePath := testStateFile(t, state)
p := testProvider()
ui := new(cli.MockUi)
c := &RefreshCommand{
Meta: Meta{
ContextOpts: testCtxConfig(p),
Ui: ui,
},
}
varFileDir := testTempDir(t)
varFilePath := filepath.Join(varFileDir, "terraform.tfvars")
if err := ioutil.WriteFile(varFilePath, []byte(refreshVarFile), 0644); err != nil {
t.Fatalf("err: %s", err)
}
cwd, err := os.Getwd()
if err != nil {
t.Fatalf("err: %s", err)
}
if err := os.Chdir(varFileDir); err != nil {
t.Fatalf("err: %s", err)
}
defer os.Chdir(cwd)
args := []string{
"-state", statePath,
testFixturePath("refresh-var"),
}
if code := c.Run(args); code != 0 {
t.Fatalf("bad: %d\n\n%s", code, ui.ErrorWriter.String())
}
if !p.ConfigureCalled {
t.Fatal("configure should be called")
}
if p.ConfigureConfig.Config["value"].(string) != "bar" {
t.Fatalf("bad: %#v", p.ConfigureConfig.Config)
}
}
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func TestRefresh_backup(t *testing.T) {
state := &terraform.State{
Resources: map[string]*terraform.ResourceState{
"test_instance.foo": &terraform.ResourceState{
ID: "bar",
Type: "test_instance",
},
},
}
statePath := testStateFile(t, state)
// Output path
outf, err := ioutil.TempFile("", "tf")
if err != nil {
t.Fatalf("err: %s", err)
}
outPath := outf.Name()
outf.Close()
os.Remove(outPath)
// Backup path
backupf, err := ioutil.TempFile("", "tf")
if err != nil {
t.Fatalf("err: %s", err)
}
backupPath := backupf.Name()
backupf.Close()
os.Remove(backupPath)
p := testProvider()
ui := new(cli.MockUi)
c := &RefreshCommand{
Meta: Meta{
ContextOpts: testCtxConfig(p),
Ui: ui,
},
}
p.RefreshFn = nil
p.RefreshReturn = &terraform.ResourceState{ID: "yes"}
args := []string{
"-state", statePath,
"-state-out", outPath,
"-backup", backupPath,
testFixturePath("refresh"),
}
if code := c.Run(args); code != 0 {
t.Fatalf("bad: %d\n\n%s", code, ui.ErrorWriter.String())
}
f, err := os.Open(statePath)
if err != nil {
t.Fatalf("err: %s", err)
}
newState, err := terraform.ReadState(f)
f.Close()
if err != nil {
t.Fatalf("err: %s", err)
}
if !reflect.DeepEqual(newState, state) {
t.Fatalf("bad: %#v", newState)
}
f, err = os.Open(outPath)
if err != nil {
t.Fatalf("err: %s", err)
}
newState, err = terraform.ReadState(f)
f.Close()
if err != nil {
t.Fatalf("err: %s", err)
}
actual := newState.Resources["test_instance.foo"]
expected := p.RefreshReturn
if !reflect.DeepEqual(actual, expected) {
t.Fatalf("bad: %#v", actual)
}
f, err = os.Open(backupPath)
if err != nil {
t.Fatalf("err: %s", err)
}
backupState, err := terraform.ReadState(f)
f.Close()
if err != nil {
t.Fatalf("err: %s", err)
}
if !reflect.DeepEqual(backupState, state) {
t.Fatalf("bad: %#v", backupState)
}
}
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func TestRefresh_disableBackup(t *testing.T) {
state := &terraform.State{
Resources: map[string]*terraform.ResourceState{
"test_instance.foo": &terraform.ResourceState{
ID: "bar",
Type: "test_instance",
},
},
}
statePath := testStateFile(t, state)
// Output path
outf, err := ioutil.TempFile("", "tf")
if err != nil {
t.Fatalf("err: %s", err)
}
outPath := outf.Name()
outf.Close()
os.Remove(outPath)
p := testProvider()
ui := new(cli.MockUi)
c := &RefreshCommand{
Meta: Meta{
ContextOpts: testCtxConfig(p),
Ui: ui,
},
}
p.RefreshFn = nil
p.RefreshReturn = &terraform.ResourceState{ID: "yes"}
args := []string{
"-state", statePath,
"-state-out", outPath,
"-backup", "-",
testFixturePath("refresh"),
}
if code := c.Run(args); code != 0 {
t.Fatalf("bad: %d\n\n%s", code, ui.ErrorWriter.String())
}
f, err := os.Open(statePath)
if err != nil {
t.Fatalf("err: %s", err)
}
newState, err := terraform.ReadState(f)
f.Close()
if err != nil {
t.Fatalf("err: %s", err)
}
if !reflect.DeepEqual(newState, state) {
t.Fatalf("bad: %#v", newState)
}
f, err = os.Open(outPath)
if err != nil {
t.Fatalf("err: %s", err)
}
newState, err = terraform.ReadState(f)
f.Close()
if err != nil {
t.Fatalf("err: %s", err)
}
actual := newState.Resources["test_instance.foo"]
expected := p.RefreshReturn
if !reflect.DeepEqual(actual, expected) {
t.Fatalf("bad: %#v", actual)
}
// Ensure there is no backup
_, err = os.Stat(outPath + DefaultBackupExtention)
if err == nil || !os.IsNotExist(err) {
t.Fatalf("backup should not exist")
}
}
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const refreshVarFile = `
foo = "bar"
`