terraform/helper/schema/field_reader_test.go

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package schema
import (
"reflect"
"testing"
)
func TestAddrToSchema(t *testing.T) {
cases := map[string]struct {
Addr []string
Schema map[string]*Schema
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Result []ValueType
}{
"full object": {
[]string{},
map[string]*Schema{
"list": &Schema{
Type: TypeList,
Elem: &Schema{Type: TypeInt},
},
},
[]ValueType{typeObject},
},
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"list": {
[]string{"list"},
map[string]*Schema{
"list": &Schema{
Type: TypeList,
Elem: &Schema{Type: TypeInt},
},
},
[]ValueType{TypeList},
},
"list.#": {
[]string{"list", "#"},
map[string]*Schema{
"list": &Schema{
Type: TypeList,
Elem: &Schema{Type: TypeInt},
},
},
[]ValueType{TypeList, TypeInt},
},
"list.0": {
[]string{"list", "0"},
map[string]*Schema{
"list": &Schema{
Type: TypeList,
Elem: &Schema{Type: TypeInt},
},
},
[]ValueType{TypeList, TypeInt},
},
"list.0 with resource": {
[]string{"list", "0"},
map[string]*Schema{
"list": &Schema{
Type: TypeList,
Elem: &Resource{
Schema: map[string]*Schema{
"field": &Schema{Type: TypeString},
},
},
},
},
[]ValueType{TypeList, typeObject},
},
"list.0.field": {
[]string{"list", "0", "field"},
map[string]*Schema{
"list": &Schema{
Type: TypeList,
Elem: &Resource{
Schema: map[string]*Schema{
"field": &Schema{Type: TypeString},
},
},
},
},
[]ValueType{TypeList, typeObject, TypeString},
},
"set": {
[]string{"set"},
map[string]*Schema{
"set": &Schema{
Type: TypeSet,
Elem: &Schema{Type: TypeInt},
Set: func(a interface{}) int {
return a.(int)
},
},
},
[]ValueType{TypeSet},
},
"set.#": {
[]string{"set", "#"},
map[string]*Schema{
"set": &Schema{
Type: TypeSet,
Elem: &Schema{Type: TypeInt},
Set: func(a interface{}) int {
return a.(int)
},
},
},
[]ValueType{TypeSet, TypeInt},
},
"set.0": {
[]string{"set", "0"},
map[string]*Schema{
"set": &Schema{
Type: TypeSet,
Elem: &Schema{Type: TypeInt},
Set: func(a interface{}) int {
return a.(int)
},
},
},
[]ValueType{TypeSet, TypeInt},
},
"set.0 with resource": {
[]string{"set", "0"},
map[string]*Schema{
"set": &Schema{
Type: TypeSet,
Elem: &Resource{
Schema: map[string]*Schema{
"field": &Schema{Type: TypeString},
},
},
},
},
[]ValueType{TypeSet, typeObject},
},
"mapElem": {
[]string{"map", "foo"},
map[string]*Schema{
"map": &Schema{Type: TypeMap},
},
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[]ValueType{TypeMap, TypeString},
},
"setDeep": {
[]string{"set", "50", "index"},
map[string]*Schema{
"set": &Schema{
Type: TypeSet,
Elem: &Resource{
Schema: map[string]*Schema{
"index": &Schema{Type: TypeInt},
"value": &Schema{Type: TypeString},
},
},
Set: func(a interface{}) int {
return a.(map[string]interface{})["index"].(int)
},
},
},
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[]ValueType{TypeSet, typeObject, TypeInt},
},
}
for name, tc := range cases {
result := addrToSchema(tc.Addr, tc.Schema)
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types := make([]ValueType, len(result))
for i, v := range result {
types[i] = v.Type
}
if !reflect.DeepEqual(types, tc.Result) {
t.Fatalf("%s: %#v", name, types)
}
}
}
// testFieldReader is a helper that should be used to verify that
// a FieldReader behaves properly in all the common cases.
func testFieldReader(t *testing.T, f func(map[string]*Schema) FieldReader) {
schema := map[string]*Schema{
// Primitives
"bool": &Schema{Type: TypeBool},
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"float": &Schema{Type: TypeFloat},
"int": &Schema{Type: TypeInt},
"string": &Schema{Type: TypeString},
// Lists
"list": &Schema{
Type: TypeList,
Elem: &Schema{Type: TypeString},
},
"listInt": &Schema{
Type: TypeList,
Elem: &Schema{Type: TypeInt},
},
"listMap": &Schema{
Type: TypeList,
Elem: &Schema{
Type: TypeMap,
},
},
// Maps
"map": &Schema{Type: TypeMap},
// Sets
"set": &Schema{
Type: TypeSet,
Elem: &Schema{Type: TypeInt},
Set: func(a interface{}) int {
return a.(int)
},
},
"setDeep": &Schema{
Type: TypeSet,
Elem: &Resource{
Schema: map[string]*Schema{
"index": &Schema{Type: TypeInt},
"value": &Schema{Type: TypeString},
},
},
Set: func(a interface{}) int {
return a.(map[string]interface{})["index"].(int)
},
},
"setEmpty": &Schema{
Type: TypeSet,
Elem: &Schema{Type: TypeInt},
Set: func(a interface{}) int {
return a.(int)
},
},
}
cases := map[string]struct {
Addr []string
Result FieldReadResult
Err bool
}{
"noexist": {
[]string{"boolNOPE"},
FieldReadResult{
Value: nil,
Exists: false,
Computed: false,
},
false,
},
"bool": {
[]string{"bool"},
FieldReadResult{
Value: true,
Exists: true,
Computed: false,
},
false,
},
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"float": {
[]string{"float"},
FieldReadResult{
Value: 3.1415,
Exists: true,
Computed: false,
},
false,
},
"int": {
[]string{"int"},
FieldReadResult{
Value: 42,
Exists: true,
Computed: false,
},
false,
},
"string": {
[]string{"string"},
FieldReadResult{
Value: "string",
Exists: true,
Computed: false,
},
false,
},
"list": {
[]string{"list"},
FieldReadResult{
Value: []interface{}{
"foo",
"bar",
},
Exists: true,
Computed: false,
},
false,
},
"listInt": {
[]string{"listInt"},
FieldReadResult{
Value: []interface{}{
21,
42,
},
Exists: true,
Computed: false,
},
false,
},
"map": {
[]string{"map"},
FieldReadResult{
Value: map[string]interface{}{
"foo": "bar",
"bar": "baz",
},
Exists: true,
Computed: false,
},
false,
},
"mapelem": {
[]string{"map", "foo"},
FieldReadResult{
Value: "bar",
Exists: true,
Computed: false,
},
false,
},
"set": {
[]string{"set"},
FieldReadResult{
Value: []interface{}{10, 50},
Exists: true,
Computed: false,
},
false,
},
"setDeep": {
[]string{"setDeep"},
FieldReadResult{
Value: []interface{}{
map[string]interface{}{
"index": 10,
"value": "foo",
},
map[string]interface{}{
"index": 50,
"value": "bar",
},
},
Exists: true,
Computed: false,
},
false,
},
"setEmpty": {
[]string{"setEmpty"},
FieldReadResult{
Value: []interface{}{},
Exists: false,
},
false,
},
}
for name, tc := range cases {
r := f(schema)
out, err := r.ReadField(tc.Addr)
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if err != nil != tc.Err {
t.Fatalf("%s: err: %s", name, err)
}
if s, ok := out.Value.(*Set); ok {
// If it is a set, convert to a list so its more easily checked.
out.Value = s.List()
}
if !reflect.DeepEqual(tc.Result, out) {
t.Fatalf("%s: bad: %#v", name, out)
}
}
}