terraform/command/refresh_test.go

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2014-06-27 20:09:01 +02:00
package command
import (
"bytes"
"encoding/json"
"fmt"
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"io/ioutil"
"os"
"path/filepath"
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"strings"
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"testing"
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"github.com/mitchellh/cli"
"github.com/zclconf/go-cty/cty"
"github.com/hashicorp/terraform/helper/copy"
"github.com/hashicorp/terraform/providers"
"github.com/hashicorp/terraform/states"
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"github.com/hashicorp/terraform/terraform"
)
func TestRefresh(t *testing.T) {
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state := testState()
statePath := testStateFile(t, state)
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p := testProvider()
ui := new(cli.MockUi)
c := &RefreshCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
},
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}
p.ReadResourceFn = nil
p.ReadResourceResponse = providers.ReadResourceResponse{
NewState: cty.ObjectVal(map[string]cty.Value{
"id": cty.StringVal("yes"),
}),
}
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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.ReadResourceCalled {
t.Fatal("ReadResource should have been called")
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}
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)
}
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actual := strings.TrimSpace(newState.String())
expected := strings.TrimSpace(testRefreshStr)
if actual != expected {
t.Fatalf("bad:\n\n%s", actual)
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}
}
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func TestRefresh_empty(t *testing.T) {
// Create a temporary working directory that is empty
td := tempDir(t)
copy.CopyDir(testFixturePath("refresh-empty"), td)
defer os.RemoveAll(td)
defer testChdir(t, td)()
p := testProvider()
ui := new(cli.MockUi)
c := &RefreshCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
},
}
p.ReadResourceFn = nil
p.ReadResourceResponse = providers.ReadResourceResponse{
NewState: cty.ObjectVal(map[string]cty.Value{
"id": cty.StringVal("yes"),
}),
}
args := []string{
td,
}
if code := c.Run(args); code != 0 {
t.Fatalf("bad: %d\n\n%s", code, ui.ErrorWriter.String())
}
if p.ReadResourceCalled {
t.Fatal("ReadResource should not have been called")
}
}
func TestRefresh_lockedState(t *testing.T) {
state := testState()
statePath := testStateFile(t, state)
unlock, err := testLockState("./testdata", statePath)
if err != nil {
t.Fatal(err)
}
defer unlock()
p := testProvider()
ui := new(cli.MockUi)
c := &RefreshCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
},
}
p.ReadResourceFn = nil
p.ReadResourceResponse = providers.ReadResourceResponse{
NewState: cty.ObjectVal(map[string]cty.Value{
"id": cty.StringVal("yes"),
}),
}
args := []string{
"-state", statePath,
testFixturePath("refresh"),
}
if code := c.Run(args); code == 0 {
t.Fatal("expected error")
}
output := ui.ErrorWriter.String()
if !strings.Contains(output, "lock") {
t.Fatal("command output does not look like a lock error:", output)
}
}
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)
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state := testState()
statePath := testStateFile(t, state)
p := testProvider()
ui := new(cli.MockUi)
c := &RefreshCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
},
}
p.ReadResourceFn = nil
p.ReadResourceResponse = providers.ReadResourceResponse{
NewState: cty.ObjectVal(map[string]cty.Value{
"id": cty.StringVal("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.ReadResourceCalled {
t.Fatal("ReadResource should have been 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)
}
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actual := strings.TrimSpace(newState.String())
expected := strings.TrimSpace(testRefreshCwdStr)
if actual != expected {
t.Fatalf("bad:\n\n%s", actual)
}
}
func TestRefresh_defaultState(t *testing.T) {
t.Fatal("not yet updated for new provider types")
/*
originalState := testState()
// Write the state file in a temporary directory with the
// default filename.
statePath := testStateFile(t, originalState)
localState := &state.LocalState{Path: statePath}
if err := localState.RefreshState(); err != nil {
t.Fatal(err)
}
s := localState.State()
if s == nil {
t.Fatal("empty test state")
}
serial := s.Serial
// 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{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
},
}
p.RefreshFn = nil
p.RefreshReturn = newInstanceState("yes")
args := []string{
"-state", statePath,
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")
}
newState := testStateRead(t, statePath)
actual := newState.RootModule().Resources["test_instance.foo"].Instances[addrs.NoKey].Current
expected := p.RefreshReturn
if !reflect.DeepEqual(actual, expected) {
t.Logf("expected:\n%#v", expected)
t.Fatalf("bad:\n%#v", actual)
}
backupState := testStateRead(t, statePath+DefaultBackupExtension)
actual = backupState.RootModule().Resources["test_instance.foo"].Instances[addrs.NoKey].Current
expected = originalState.RootModule().Resources["test_instance.foo"].Instances[addrs.NoKey].Current
if !reflect.DeepEqual(actual, expected) {
t.Fatalf("bad: %#v", actual)
}
*/
}
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func TestRefresh_outPath(t *testing.T) {
t.Fatal("not yet updated for new provider types")
/*
state := testState()
statePath := testStateFile(t, state)
// Output path
outf, err := ioutil.TempFile(testingDir, "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{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
},
}
p.RefreshFn = nil
p.RefreshReturn = newInstanceState("yes")
args := []string{
"-state", statePath,
"-state-out", outPath,
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.RootModule().Resources["test_instance.foo"].Primary
expected := p.RefreshReturn
if !reflect.DeepEqual(actual, expected) {
t.Fatalf("bad: %#v", actual)
}
f, err = os.Open(outPath + DefaultBackupExtension)
if err != nil {
t.Fatalf("err: %s", err)
}
backupState, err := terraform.ReadState(f)
f.Close()
if err != nil {
t.Fatalf("err: %s", err)
}
actualStr := strings.TrimSpace(backupState.String())
expectedStr := strings.TrimSpace(state.String())
if actualStr != expectedStr {
t.Fatalf("bad:\n\n%s\n\n%s", actualStr, expectedStr)
}
*/
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}
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func TestRefresh_var(t *testing.T) {
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state := testState()
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statePath := testStateFile(t, state)
p := testProvider()
ui := new(cli.MockUi)
c := &RefreshCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
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},
}
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 got, want := p.ConfigureRequest.Config.GetAttr("value"), cty.StringVal("bar"); !want.RawEquals(got) {
t.Fatalf("wrong provider configuration\ngot: %#v\nwant: %#v", got, want)
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}
}
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func TestRefresh_varFile(t *testing.T) {
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state := testState()
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statePath := testStateFile(t, state)
p := testProvider()
ui := new(cli.MockUi)
c := &RefreshCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
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},
}
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 got, want := p.ConfigureRequest.Config.GetAttr("value"), cty.StringVal("bar"); !want.RawEquals(got) {
t.Fatalf("wrong provider configuration\ngot: %#v\nwant: %#v", got, want)
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}
}
func TestRefresh_varFileDefault(t *testing.T) {
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state := testState()
statePath := testStateFile(t, state)
p := testProvider()
ui := new(cli.MockUi)
c := &RefreshCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(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 got, want := p.ConfigureRequest.Config.GetAttr("value"), cty.StringVal("bar"); !want.RawEquals(got) {
t.Fatalf("wrong provider configuration\ngot: %#v\nwant: %#v", got, want)
}
}
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func TestRefresh_varsUnset(t *testing.T) {
// Disable test mode so input would be asked
test = false
defer func() { test = true }()
defaultInputReader = bytes.NewBufferString("bar\n")
state := testState()
statePath := testStateFile(t, state)
p := testProvider()
ui := new(cli.MockUi)
c := &RefreshCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
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},
}
args := []string{
"-state", statePath,
testFixturePath("refresh-unset-var"),
}
if code := c.Run(args); code != 0 {
t.Fatalf("bad: %d\n\n%s", code, ui.ErrorWriter.String())
}
}
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func TestRefresh_backup(t *testing.T) {
t.Fatal("not yet updated for new provider types")
/*
state := testState()
statePath := testStateFile(t, state)
// Output path
outf, err := ioutil.TempFile(testingDir, "tf")
if err != nil {
t.Fatalf("err: %s", err)
}
outPath := outf.Name()
outf.Close()
os.Remove(outPath)
// Backup path
backupf, err := ioutil.TempFile(testingDir, "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{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
},
}
p.RefreshFn = nil
p.RefreshReturn = newInstanceState("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.RootModule().Resources["test_instance.foo"].Primary
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)
}
actualStr := strings.TrimSpace(backupState.String())
expectedStr := strings.TrimSpace(state.String())
if actualStr != expectedStr {
t.Fatalf("bad:\n\n%s\n\n%s", actualStr, expectedStr)
}
*/
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}
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func TestRefresh_disableBackup(t *testing.T) {
t.Fatal("not yet updated for new provider types")
/*
state := testState()
statePath := testStateFile(t, state)
// Output path
outf, err := ioutil.TempFile(testingDir, "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{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
},
}
p.RefreshFn = nil
p.RefreshReturn = newInstanceState("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.RootModule().Resources["test_instance.foo"].Primary
expected := p.RefreshReturn
if !reflect.DeepEqual(actual, expected) {
t.Fatalf("bad: %#v", actual)
}
// Ensure there is no backup
_, err = os.Stat(outPath + DefaultBackupExtension)
if err == nil || !os.IsNotExist(err) {
t.Fatalf("backup should not exist")
}
_, err = os.Stat("-")
if err == nil || !os.IsNotExist(err) {
t.Fatalf("backup should not exist")
}
*/
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}
func TestRefresh_displaysOutputs(t *testing.T) {
state := testState()
statePath := testStateFile(t, state)
p := testProvider()
ui := new(cli.MockUi)
c := &RefreshCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
},
}
args := []string{
"-state", statePath,
testFixturePath("refresh-output"),
}
if code := c.Run(args); code != 0 {
t.Fatalf("bad: %d\n\n%s", code, ui.ErrorWriter.String())
}
// Test that outputs were displayed
outputValue := "foo.example.com"
actual := ui.OutputWriter.String()
if !strings.Contains(actual, outputValue) {
t.Fatalf("Expected:\n%s\n\nTo include: %q", actual, outputValue)
}
}
// newInstanceState creates a new states.ResourceInstanceObjectSrc with the
// given value for its single id attribute. It is named newInstanceState for
// historical reasons, because it was originally written for the poorly-named
// terraform.InstanceState type.
func newInstanceState(id string) *states.ResourceInstanceObjectSrc {
attrs := map[string]interface{}{
"id": id,
}
attrsJSON, err := json.Marshal(attrs)
if err != nil {
panic(fmt.Sprintf("failed to marshal attributes: %s", err)) // should never happen
}
return &states.ResourceInstanceObjectSrc{
AttrsJSON: attrsJSON,
Status: states.ObjectReady,
}
}
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const refreshVarFile = `
foo = "bar"
`
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const testRefreshStr = `
test_instance.foo:
ID = yes
provider = provider.test
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`
const testRefreshCwdStr = `
test_instance.foo:
ID = yes
provider = provider.test
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`