terraform/helper/schema/resource_test.go

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package schema
import (
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"fmt"
"reflect"
"strconv"
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"testing"
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"github.com/hashicorp/terraform/terraform"
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)
func TestResourceApply_create(t *testing.T) {
r := &Resource{
SchemaVersion: 2,
Schema: map[string]*Schema{
"foo": &Schema{
Type: TypeInt,
Optional: true,
},
},
}
called := false
r.Create = func(d *ResourceData, m interface{}) error {
called = true
d.SetId("foo")
return nil
}
var s *terraform.InstanceState = nil
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d := &terraform.InstanceDiff{
Attributes: map[string]*terraform.ResourceAttrDiff{
"foo": &terraform.ResourceAttrDiff{
New: "42",
},
},
}
actual, err := r.Apply(s, d, nil)
if err != nil {
t.Fatalf("err: %s", err)
}
if !called {
t.Fatal("not called")
}
expected := &terraform.InstanceState{
ID: "foo",
Attributes: map[string]string{
"id": "foo",
"foo": "42",
},
Meta: map[string]string{
"schema_version": "2",
},
}
if !reflect.DeepEqual(actual, expected) {
t.Fatalf("bad: %#v", actual)
}
}
func TestResourceApply_destroy(t *testing.T) {
r := &Resource{
Schema: map[string]*Schema{
"foo": &Schema{
Type: TypeInt,
Optional: true,
},
},
}
called := false
r.Delete = func(d *ResourceData, m interface{}) error {
called = true
return nil
}
s := &terraform.InstanceState{
ID: "bar",
}
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d := &terraform.InstanceDiff{
Destroy: true,
}
actual, err := r.Apply(s, d, nil)
if err != nil {
t.Fatalf("err: %s", err)
}
if !called {
t.Fatal("delete not called")
}
if actual != nil {
t.Fatalf("bad: %#v", actual)
}
}
func TestResourceApply_destroyCreate(t *testing.T) {
r := &Resource{
Schema: map[string]*Schema{
"foo": &Schema{
Type: TypeInt,
Optional: true,
},
"tags": &Schema{
Type: TypeMap,
Optional: true,
Computed: true,
},
},
}
change := false
r.Create = func(d *ResourceData, m interface{}) error {
change = d.HasChange("tags")
d.SetId("foo")
return nil
}
r.Delete = func(d *ResourceData, m interface{}) error {
return nil
}
var s *terraform.InstanceState = &terraform.InstanceState{
ID: "bar",
Attributes: map[string]string{
"foo": "bar",
"tags.Name": "foo",
},
}
d := &terraform.InstanceDiff{
Attributes: map[string]*terraform.ResourceAttrDiff{
"foo": &terraform.ResourceAttrDiff{
New: "42",
RequiresNew: true,
},
"tags.Name": &terraform.ResourceAttrDiff{
Old: "foo",
New: "foo",
RequiresNew: true,
},
},
}
actual, err := r.Apply(s, d, nil)
if err != nil {
t.Fatalf("err: %s", err)
}
if !change {
t.Fatal("should have change")
}
expected := &terraform.InstanceState{
ID: "foo",
Attributes: map[string]string{
"id": "foo",
"foo": "42",
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"tags.#": "1",
"tags.Name": "foo",
},
}
if !reflect.DeepEqual(actual, expected) {
t.Fatalf("bad: %#v", actual)
}
}
func TestResourceApply_destroyPartial(t *testing.T) {
r := &Resource{
Schema: map[string]*Schema{
"foo": &Schema{
Type: TypeInt,
Optional: true,
},
},
SchemaVersion: 3,
}
r.Delete = func(d *ResourceData, m interface{}) error {
d.Set("foo", 42)
return fmt.Errorf("some error")
}
s := &terraform.InstanceState{
ID: "bar",
Attributes: map[string]string{
"foo": "12",
},
}
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d := &terraform.InstanceDiff{
Destroy: true,
}
actual, err := r.Apply(s, d, nil)
if err == nil {
t.Fatal("should error")
}
expected := &terraform.InstanceState{
ID: "bar",
Attributes: map[string]string{
"id": "bar",
"foo": "42",
},
Meta: map[string]string{
"schema_version": "3",
},
}
if !reflect.DeepEqual(actual, expected) {
t.Fatalf("expected:\n%#v\n\ngot:\n%#v", expected, actual)
}
}
func TestResourceApply_update(t *testing.T) {
r := &Resource{
Schema: map[string]*Schema{
"foo": &Schema{
Type: TypeInt,
Optional: true,
},
},
}
r.Update = func(d *ResourceData, m interface{}) error {
d.Set("foo", 42)
return nil
}
s := &terraform.InstanceState{
ID: "foo",
Attributes: map[string]string{
"foo": "12",
},
}
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d := &terraform.InstanceDiff{
Attributes: map[string]*terraform.ResourceAttrDiff{
"foo": &terraform.ResourceAttrDiff{
New: "13",
},
},
}
actual, err := r.Apply(s, d, nil)
if err != nil {
t.Fatalf("err: %s", err)
}
expected := &terraform.InstanceState{
ID: "foo",
Attributes: map[string]string{
"id": "foo",
"foo": "42",
},
}
if !reflect.DeepEqual(actual, expected) {
t.Fatalf("bad: %#v", actual)
}
}
func TestResourceApply_updateNoCallback(t *testing.T) {
r := &Resource{
Schema: map[string]*Schema{
"foo": &Schema{
Type: TypeInt,
Optional: true,
},
},
}
r.Update = nil
s := &terraform.InstanceState{
ID: "foo",
Attributes: map[string]string{
"foo": "12",
},
}
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d := &terraform.InstanceDiff{
Attributes: map[string]*terraform.ResourceAttrDiff{
"foo": &terraform.ResourceAttrDiff{
New: "13",
},
},
}
actual, err := r.Apply(s, d, nil)
if err == nil {
t.Fatal("should error")
}
expected := &terraform.InstanceState{
ID: "foo",
Attributes: map[string]string{
"foo": "12",
},
}
if !reflect.DeepEqual(actual, expected) {
t.Fatalf("bad: %#v", actual)
}
}
func TestResourceApply_isNewResource(t *testing.T) {
r := &Resource{
Schema: map[string]*Schema{
"foo": &Schema{
Type: TypeString,
Optional: true,
},
},
}
updateFunc := func(d *ResourceData, m interface{}) error {
d.Set("foo", "updated")
if d.IsNewResource() {
d.Set("foo", "new-resource")
}
return nil
}
r.Create = func(d *ResourceData, m interface{}) error {
d.SetId("foo")
d.Set("foo", "created")
return updateFunc(d, m)
}
r.Update = updateFunc
d := &terraform.InstanceDiff{
Attributes: map[string]*terraform.ResourceAttrDiff{
"foo": &terraform.ResourceAttrDiff{
New: "bla-blah",
},
},
}
// positive test
var s *terraform.InstanceState = nil
actual, err := r.Apply(s, d, nil)
if err != nil {
t.Fatalf("err: %s", err)
}
expected := &terraform.InstanceState{
ID: "foo",
Attributes: map[string]string{
"id": "foo",
"foo": "new-resource",
},
}
if !reflect.DeepEqual(actual, expected) {
t.Fatalf("actual: %#v\nexpected: %#v",
actual, expected)
}
// negative test
s = &terraform.InstanceState{
ID: "foo",
Attributes: map[string]string{
"id": "foo",
"foo": "new-resource",
},
}
actual, err = r.Apply(s, d, nil)
if err != nil {
t.Fatalf("err: %s", err)
}
expected = &terraform.InstanceState{
ID: "foo",
Attributes: map[string]string{
"id": "foo",
"foo": "updated",
},
}
if !reflect.DeepEqual(actual, expected) {
t.Fatalf("actual: %#v\nexpected: %#v",
actual, expected)
}
}
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func TestResourceInternalValidate(t *testing.T) {
cases := []struct {
In *Resource
Writable bool
Err bool
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}{
{
nil,
true,
true,
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},
// No optional and no required
{
&Resource{
Schema: map[string]*Schema{
"foo": &Schema{
Type: TypeInt,
Optional: true,
Required: true,
},
},
},
true,
true,
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},
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// Update undefined for non-ForceNew field
{
&Resource{
Create: func(d *ResourceData, meta interface{}) error { return nil },
Schema: map[string]*Schema{
"boo": &Schema{
Type: TypeInt,
Optional: true,
},
},
},
true,
true,
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},
// Update defined for ForceNew field
{
&Resource{
Create: func(d *ResourceData, meta interface{}) error { return nil },
Update: func(d *ResourceData, meta interface{}) error { return nil },
Schema: map[string]*Schema{
"goo": &Schema{
Type: TypeInt,
Optional: true,
ForceNew: true,
},
},
},
true,
true,
},
// non-writable doesn't need Update, Create or Delete
{
&Resource{
Schema: map[string]*Schema{
"goo": &Schema{
Type: TypeInt,
Optional: true,
},
},
},
false,
false,
},
// non-writable *must not* have Create
{
&Resource{
Create: func(d *ResourceData, meta interface{}) error { return nil },
Schema: map[string]*Schema{
"goo": &Schema{
Type: TypeInt,
Optional: true,
},
},
},
false,
true,
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},
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}
for i, tc := range cases {
err := tc.In.InternalValidate(schemaMap{}, tc.Writable)
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if err != nil != tc.Err {
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t.Fatalf("%d: bad: %s", i, err)
}
}
}
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func TestResourceRefresh(t *testing.T) {
r := &Resource{
SchemaVersion: 2,
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Schema: map[string]*Schema{
"foo": &Schema{
Type: TypeInt,
Optional: true,
},
},
}
r.Read = func(d *ResourceData, m interface{}) error {
if m != 42 {
return fmt.Errorf("meta not passed")
}
return d.Set("foo", d.Get("foo").(int)+1)
}
s := &terraform.InstanceState{
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ID: "bar",
Attributes: map[string]string{
"foo": "12",
},
}
expected := &terraform.InstanceState{
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ID: "bar",
Attributes: map[string]string{
"id": "bar",
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"foo": "13",
},
Meta: map[string]string{
"schema_version": "2",
},
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}
actual, err := r.Refresh(s, 42)
if err != nil {
t.Fatalf("err: %s", err)
}
if !reflect.DeepEqual(actual, expected) {
t.Fatalf("bad: %#v", actual)
}
}
func TestResourceRefresh_blankId(t *testing.T) {
r := &Resource{
Schema: map[string]*Schema{
"foo": &Schema{
Type: TypeInt,
Optional: true,
},
},
}
r.Read = func(d *ResourceData, m interface{}) error {
d.SetId("foo")
return nil
}
s := &terraform.InstanceState{
ID: "",
Attributes: map[string]string{},
}
actual, err := r.Refresh(s, 42)
if err != nil {
t.Fatalf("err: %s", err)
}
if actual != nil {
t.Fatalf("bad: %#v", actual)
}
}
func TestResourceRefresh_delete(t *testing.T) {
r := &Resource{
Schema: map[string]*Schema{
"foo": &Schema{
Type: TypeInt,
Optional: true,
},
},
}
r.Read = func(d *ResourceData, m interface{}) error {
d.SetId("")
return nil
}
s := &terraform.InstanceState{
ID: "bar",
Attributes: map[string]string{
"foo": "12",
},
}
actual, err := r.Refresh(s, 42)
if err != nil {
t.Fatalf("err: %s", err)
}
if actual != nil {
t.Fatalf("bad: %#v", actual)
}
}
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func TestResourceRefresh_existsError(t *testing.T) {
r := &Resource{
Schema: map[string]*Schema{
"foo": &Schema{
Type: TypeInt,
Optional: true,
},
},
}
r.Exists = func(*ResourceData, interface{}) (bool, error) {
return false, fmt.Errorf("error")
}
r.Read = func(d *ResourceData, m interface{}) error {
panic("shouldn't be called")
}
s := &terraform.InstanceState{
ID: "bar",
Attributes: map[string]string{
"foo": "12",
},
}
actual, err := r.Refresh(s, 42)
if err == nil {
t.Fatalf("should error")
}
if !reflect.DeepEqual(actual, s) {
t.Fatalf("bad: %#v", actual)
}
}
func TestResourceRefresh_noExists(t *testing.T) {
r := &Resource{
Schema: map[string]*Schema{
"foo": &Schema{
Type: TypeInt,
Optional: true,
},
},
}
r.Exists = func(*ResourceData, interface{}) (bool, error) {
return false, nil
}
r.Read = func(d *ResourceData, m interface{}) error {
panic("shouldn't be called")
}
s := &terraform.InstanceState{
ID: "bar",
Attributes: map[string]string{
"foo": "12",
},
}
actual, err := r.Refresh(s, 42)
if err != nil {
t.Fatalf("err: %s", err)
}
if actual != nil {
t.Fatalf("should have no state")
}
}
func TestResourceRefresh_needsMigration(t *testing.T) {
// Schema v2 it deals only in newfoo, which tracks foo as an int
r := &Resource{
SchemaVersion: 2,
Schema: map[string]*Schema{
"newfoo": &Schema{
Type: TypeInt,
Optional: true,
},
},
}
r.Read = func(d *ResourceData, m interface{}) error {
return d.Set("newfoo", d.Get("newfoo").(int)+1)
}
r.MigrateState = func(
v int,
s *terraform.InstanceState,
meta interface{}) (*terraform.InstanceState, error) {
// Real state migration functions will probably switch on this value,
// but we'll just assert on it for now.
if v != 1 {
t.Fatalf("Expected StateSchemaVersion to be 1, got %d", v)
}
if meta != 42 {
t.Fatal("Expected meta to be passed through to the migration function")
}
oldfoo, err := strconv.ParseFloat(s.Attributes["oldfoo"], 64)
if err != nil {
t.Fatalf("err: %#v", err)
}
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s.Attributes["newfoo"] = strconv.Itoa(int(oldfoo * 10))
delete(s.Attributes, "oldfoo")
return s, nil
}
// State is v1 and deals in oldfoo, which tracked foo as a float at 1/10th
// the scale of newfoo
s := &terraform.InstanceState{
ID: "bar",
Attributes: map[string]string{
"oldfoo": "1.2",
},
Meta: map[string]string{
"schema_version": "1",
},
}
actual, err := r.Refresh(s, 42)
if err != nil {
t.Fatalf("err: %s", err)
}
expected := &terraform.InstanceState{
ID: "bar",
Attributes: map[string]string{
"id": "bar",
"newfoo": "13",
},
Meta: map[string]string{
"schema_version": "2",
},
}
if !reflect.DeepEqual(actual, expected) {
t.Fatalf("bad:\n\nexpected: %#v\ngot: %#v", expected, actual)
}
}
func TestResourceRefresh_noMigrationNeeded(t *testing.T) {
r := &Resource{
SchemaVersion: 2,
Schema: map[string]*Schema{
"newfoo": &Schema{
Type: TypeInt,
Optional: true,
},
},
}
r.Read = func(d *ResourceData, m interface{}) error {
return d.Set("newfoo", d.Get("newfoo").(int)+1)
}
r.MigrateState = func(
v int,
s *terraform.InstanceState,
meta interface{}) (*terraform.InstanceState, error) {
t.Fatal("Migrate function shouldn't be called!")
return nil, nil
}
s := &terraform.InstanceState{
ID: "bar",
Attributes: map[string]string{
"newfoo": "12",
},
Meta: map[string]string{
"schema_version": "2",
},
}
actual, err := r.Refresh(s, nil)
if err != nil {
t.Fatalf("err: %s", err)
}
expected := &terraform.InstanceState{
ID: "bar",
Attributes: map[string]string{
"id": "bar",
"newfoo": "13",
},
Meta: map[string]string{
"schema_version": "2",
},
}
if !reflect.DeepEqual(actual, expected) {
t.Fatalf("bad:\n\nexpected: %#v\ngot: %#v", expected, actual)
}
}
func TestResourceRefresh_stateSchemaVersionUnset(t *testing.T) {
r := &Resource{
// Version 1 > Version 0
SchemaVersion: 1,
Schema: map[string]*Schema{
"newfoo": &Schema{
Type: TypeInt,
Optional: true,
},
},
}
r.Read = func(d *ResourceData, m interface{}) error {
return d.Set("newfoo", d.Get("newfoo").(int)+1)
}
r.MigrateState = func(
v int,
s *terraform.InstanceState,
meta interface{}) (*terraform.InstanceState, error) {
s.Attributes["newfoo"] = s.Attributes["oldfoo"]
return s, nil
}
s := &terraform.InstanceState{
ID: "bar",
Attributes: map[string]string{
"oldfoo": "12",
},
}
actual, err := r.Refresh(s, nil)
if err != nil {
t.Fatalf("err: %s", err)
}
expected := &terraform.InstanceState{
ID: "bar",
Attributes: map[string]string{
"id": "bar",
"newfoo": "13",
},
Meta: map[string]string{
"schema_version": "1",
},
}
if !reflect.DeepEqual(actual, expected) {
t.Fatalf("bad:\n\nexpected: %#v\ngot: %#v", expected, actual)
}
}
func TestResourceRefresh_migrateStateErr(t *testing.T) {
r := &Resource{
SchemaVersion: 2,
Schema: map[string]*Schema{
"newfoo": &Schema{
Type: TypeInt,
Optional: true,
},
},
}
r.Read = func(d *ResourceData, m interface{}) error {
t.Fatal("Read should never be called!")
return nil
}
r.MigrateState = func(
v int,
s *terraform.InstanceState,
meta interface{}) (*terraform.InstanceState, error) {
return s, fmt.Errorf("triggering an error")
}
s := &terraform.InstanceState{
ID: "bar",
Attributes: map[string]string{
"oldfoo": "12",
},
}
_, err := r.Refresh(s, nil)
if err == nil {
t.Fatal("expected error, but got none!")
}
}
func TestResourceData(t *testing.T) {
r := &Resource{
SchemaVersion: 2,
Schema: map[string]*Schema{
"foo": &Schema{
Type: TypeInt,
Optional: true,
},
},
}
state := &terraform.InstanceState{
ID: "foo",
Attributes: map[string]string{
"id": "foo",
"foo": "42",
},
}
data := r.Data(state)
if data.Id() != "foo" {
t.Fatalf("err: %s", data.Id())
}
if v := data.Get("foo"); v != 42 {
t.Fatalf("bad: %#v", v)
}
// Set expectations
state.Meta = map[string]string{
"schema_version": "2",
}
result := data.State()
if !reflect.DeepEqual(result, state) {
t.Fatalf("bad: %#v", result)
}
}
func TestResourceData_blank(t *testing.T) {
r := &Resource{
SchemaVersion: 2,
Schema: map[string]*Schema{
"foo": &Schema{
Type: TypeInt,
Optional: true,
},
},
}
data := r.Data(nil)
if data.Id() != "" {
t.Fatalf("err: %s", data.Id())
}
if v := data.Get("foo"); v != 0 {
t.Fatalf("bad: %#v", v)
}
}