func TestTypeSystem_DefinitionExample_StringifiesSimpleTypes(t *testing.T) {
type Test struct {
ttype graphql.Type
expected string
}
tests := []Test{
{graphql.Int, "Int"},
{blogArticle, "Article"},
{interfaceType, "Interface"},
{unionType, "Union"},
{enumType, "Enum"},
{inputObjectType, "InputObject"},
{graphql.NewNonNull(graphql.Int), "Int!"},
{graphql.NewList(graphql.Int), "[Int]"},
{graphql.NewNonNull(graphql.NewList(graphql.Int)), "[Int]!"},
{graphql.NewList(graphql.NewNonNull(graphql.Int)), "[Int!]"},
{graphql.NewList(graphql.NewList(graphql.Int)), "[[Int]]"},
}
for _, test := range tests {
ttypeStr := fmt.Sprintf("%v", test.ttype)
if ttypeStr != test.expected {
t.Fatalf(`expected %v , got: %v`, test.expected, ttypeStr)
}
}
}
func PluralIdentifyingRootField(config PluralIdentifyingRootFieldConfig) *graphql.FieldConfig {
inputArgs := graphql.FieldConfigArgument{}
if config.ArgName != "" {
inputArgs[config.ArgName] = &graphql.ArgumentConfig{
Type: graphql.NewNonNull(graphql.NewList(graphql.NewNonNull(config.InputType))),
}
}
return &graphql.FieldConfig{
Description: config.Description,
Type: graphql.NewList(config.OutputType),
Args: inputArgs,
Resolve: func(p graphql.GQLFRParams) interface{} {
inputs, ok := p.Args[config.ArgName]
if !ok {
return nil
}
if config.ResolveSingleInput == nil {
return nil
}
switch inputs := inputs.(type) {
case []interface{}:
res := []interface{}{}
for _, input := range inputs {
r := config.ResolveSingleInput(input)
res = append(res, r)
}
return res
}
return nil
},
}
}
func TestTypeSystem_ObjectsMustAdhereToInterfaceTheyImplement_AcceptsAnObjectWithAnEquivalentlyModifiedInterfaceField(t *testing.T) {
anotherInterface := graphql.NewInterface(graphql.InterfaceConfig{
Name: "AnotherInterface",
ResolveType: func(value interface{}, info graphql.ResolveInfo) *graphql.Object {
return nil
},
Fields: graphql.FieldConfigMap{
"field": &graphql.FieldConfig{
Type: graphql.NewNonNull(graphql.NewList(graphql.String)),
},
},
})
anotherObject := graphql.NewObject(graphql.ObjectConfig{
Name: "AnotherObject",
Interfaces: []*graphql.Interface{anotherInterface},
Fields: graphql.FieldConfigMap{
"field": &graphql.FieldConfig{
Type: graphql.NewNonNull(graphql.NewList(graphql.String)),
},
},
})
_, err := schemaWithObjectFieldOfType(anotherObject)
if err != nil {
t.Fatalf(`unexpected error: %v for type "%v"`, err, anotherObject)
}
}
func PluralIdentifyingRootField(config PluralIdentifyingRootFieldConfig) *graphql.Field {
inputArgs := graphql.FieldConfigArgument{}
if config.ArgName != "" {
inputArgs[config.ArgName] = &graphql.ArgumentConfig{
Type: graphql.NewNonNull(graphql.NewList(graphql.NewNonNull(config.InputType))),
}
}
return &graphql.Field{
Description: config.Description,
Type: graphql.NewList(config.OutputType),
Args: inputArgs,
Resolve: func(p graphql.ResolveParams) (interface{}, error) {
inputs, ok := p.Args[config.ArgName]
if !ok {
return nil, fmt.Errorf("Missing arg %q", config.ArgName)
}
if config.ResolveSingleInput == nil {
return nil, nil
}
switch inputs := inputs.(type) {
case []interface{}:
res := []interface{}{}
for _, input := range inputs {
r := config.ResolveSingleInput(input)
res = append(res, r)
}
return res, nil
}
return nil, fmt.Errorf("Can't handle %T", inputs)
},
}
}
func withModifiers(ttypes []graphql.Type) []graphql.Type {
res := ttypes
for _, ttype := range ttypes {
res = append(res, graphql.NewList(ttype))
}
for _, ttype := range ttypes {
res = append(res, graphql.NewNonNull(ttype))
}
for _, ttype := range ttypes {
res = append(res, graphql.NewNonNull(graphql.NewList(ttype)))
}
return res
}
func TestLists_NullableListOfNonNullObjects_ContainsNull(t *testing.T) {
ttype := graphql.NewList(graphql.NewNonNull(graphql.Int))
data := []interface{}{
1, nil, 2,
}
expected := &graphql.Result{
Data: map[string]interface{}{
"nest": map[string]interface{}{
"test": nil,
},
},
Errors: []gqlerrors.FormattedError{
gqlerrors.FormattedError{
Message: "Cannot return null for non-nullable field DataType.test.",
Locations: []location.SourceLocation{
location.SourceLocation{
Line: 1,
Column: 10,
},
},
},
},
}
checkList(t, ttype, data, expected)
}
func TestLists_NonNullListOfNonNullFunc_ReturnsNull(t *testing.T) {
ttype := graphql.NewNonNull(graphql.NewList(graphql.NewNonNull(graphql.Int)))
// `data` is a function that return values
// Note that its uses the expected signature `func() interface{} {...}`
data := func() interface{} {
return nil
}
expected := &graphql.Result{
Data: map[string]interface{}{
"nest": nil,
},
Errors: []gqlerrors.FormattedError{
gqlerrors.FormattedError{
Message: "Cannot return null for non-nullable field DataType.test.",
Locations: []location.SourceLocation{
location.SourceLocation{
Line: 1,
Column: 10,
},
},
},
},
}
checkList(t, ttype, data, expected)
}
func TestTypeSystem_ObjectsMustAdhereToInterfaceTheyImplement_RejectsAnObjectWithAListInterfaceFieldNonListType(t *testing.T) {
anotherInterface := graphql.NewInterface(graphql.InterfaceConfig{
Name: "AnotherInterface",
ResolveType: func(p graphql.ResolveTypeParams) *graphql.Object {
return nil
},
Fields: graphql.Fields{
"field": &graphql.Field{
Type: graphql.String,
},
},
})
anotherObject := graphql.NewObject(graphql.ObjectConfig{
Name: "AnotherObject",
Interfaces: []*graphql.Interface{anotherInterface},
Fields: graphql.Fields{
"field": &graphql.Field{
Type: graphql.NewList(graphql.String),
},
},
})
_, err := schemaWithFieldType(anotherObject)
expectedError := `AnotherInterface.field expects type "String" but AnotherObject.field provides type "[String]".`
if err == nil || err.Error() != expectedError {
t.Fatalf("Expected error: %v, got %v", expectedError, err)
}
}
// addConnections adds connections fields to the object afterward to prevent from dead loops
func (t types) addConnections(o *graphql.Object, idx resource.Index, r *resource.Resource) {
// Add sub field references
for name, def := range r.Schema().Fields {
if ref, ok := def.Validator.(*schema.Reference); ok {
sr, found := idx.GetResource(ref.Path, nil)
if !found {
log.Panicf("resource reference not found: %s", ref.Path)
}
o.AddFieldConfig(name, &graphql.Field{
Description: def.Description,
Type: t.getObjectType(idx, sr),
Args: getFArgs(def.Params),
Resolve: getSubFieldResolver(name, sr, def),
})
}
}
// Add sub resources
for _, sr := range r.GetResources() {
name := sr.Name()
o.AddFieldConfig(name, &graphql.Field{
Description: fmt.Sprintf("Connection to %s", name),
Type: graphql.NewList(t.getObjectType(idx, sr)),
Args: listArgs,
Resolve: getSubResourceResolver(sr),
})
}
}
func TestTypeSystem_ListMustAcceptGraphQLTypes_RejectsANilTypeAsItemTypeOfList(t *testing.T) {
result := graphql.NewList(nil)
expectedError := `Can only create List of a Type but got: <nil>.`
if result.GetError() == nil || result.GetError().Error() != expectedError {
t.Fatalf("Expected error: %v, got %v", expectedError, result.GetError())
}
}
func TestLists_NonNullListOfNonNullArrayOfFunc_ContainsNulls(t *testing.T) {
ttype := graphql.NewNonNull(graphql.NewList(graphql.NewNonNull(graphql.Int)))
// `data` is a slice of functions that return values
// Note that its uses the expected signature `func() interface{} {...}`
data := []interface{}{
func() interface{} {
return 1
},
func() interface{} {
return nil
},
func() interface{} {
return 2
},
}
expected := &graphql.Result{
Data: map[string]interface{}{
"nest": map[string]interface{}{
"test": []interface{}{
1, nil, 2,
},
},
},
}
checkList(t, ttype, data, expected)
}
func TestTypeSystem_DefinitionExample_IdentifiesOutputTypes(t *testing.T) {
type Test struct {
ttype graphql.Type
expected bool
}
tests := []Test{
{graphql.Int, true},
{objectType, true},
{interfaceType, true},
{unionType, true},
{enumType, true},
{inputObjectType, false},
}
for _, test := range tests {
ttypeStr := fmt.Sprintf("%v", test.ttype)
if graphql.IsOutputType(test.ttype) != test.expected {
t.Fatalf(`expected %v , got: %v`, test.expected, ttypeStr)
}
if graphql.IsOutputType(graphql.NewList(test.ttype)) != test.expected {
t.Fatalf(`expected %v , got: %v`, test.expected, ttypeStr)
}
if graphql.IsOutputType(graphql.NewNonNull(test.ttype)) != test.expected {
t.Fatalf(`expected %v , got: %v`, test.expected, ttypeStr)
}
}
}
func TestTypeSystem_NonNullMustAcceptGraphQLTypes_AcceptsAnTypeAsNullableTypeOfNonNull(t *testing.T) {
nullableTypes := []graphql.Type{
graphql.String,
someScalarType,
someObjectType,
someUnionType,
someInterfaceType,
someEnumType,
someInputObject,
graphql.NewList(graphql.String),
graphql.NewList(graphql.NewNonNull(graphql.String)),
}
for _, ttype := range nullableTypes {
result := graphql.NewNonNull(ttype)
if result.GetError() != nil {
t.Fatalf(`unexpected error: %v for type "%v"`, result.GetError(), ttype)
}
}
}
func TestLists_ListOfNullableObjects_ReturnsNull(t *testing.T) {
ttype := graphql.NewList(graphql.Int)
expected := &graphql.Result{
Data: map[string]interface{}{
"nest": map[string]interface{}{
"test": nil,
},
},
}
checkList(t, ttype, nil, expected)
}
// Describe [T!]! Array<T>
func TestLists_NonNullListOfNonNullObjects_ContainsValues(t *testing.T) {
ttype := graphql.NewNonNull(graphql.NewList(graphql.NewNonNull(graphql.Int)))
data := []interface{}{
1, 2,
}
expected := &graphql.Result{
Data: map[string]interface{}{
"nest": map[string]interface{}{
"test": []interface{}{
1, 2,
},
},
},
}
checkList(t, ttype, data, expected)
}
func TestLists_ListOfNullableObjects_ContainsNull(t *testing.T) {
ttype := graphql.NewList(graphql.Int)
data := []interface{}{
1, nil, 2,
}
expected := &graphql.Result{
Data: map[string]interface{}{
"nest": map[string]interface{}{
"test": []interface{}{
1, nil, 2,
},
},
},
}
checkList(t, ttype, data, expected)
}
func TestTypeSystem_ListMustAcceptGraphQLTypes_AcceptsAnTypeAsItemTypeOfList(t *testing.T) {
testTypes := withModifiers([]graphql.Type{
graphql.String,
someScalarType,
someEnumType,
someObjectType,
someUnionType,
someInterfaceType,
})
for _, ttype := range testTypes {
result := graphql.NewList(ttype)
if result.GetError() != nil {
t.Fatalf(`unexpected error: %v for type "%v"`, result.GetError(), ttype)
}
}
}
func TestLists_NullableListOfNonNullFunc_ReturnsNull(t *testing.T) {
ttype := graphql.NewList(graphql.NewNonNull(graphql.Int))
// `data` is a function that return values
// Note that its uses the expected signature `func() interface{} {...}`
data := func() interface{} {
return nil
}
expected := &graphql.Result{
Data: map[string]interface{}{
"nest": map[string]interface{}{
"test": nil,
},
},
}
checkList(t, ttype, data, expected)
}
func ConnectionDefinitions(config ConnectionConfig) *GraphQLConnectionDefinitions {
edgeType := graphql.NewObject(graphql.ObjectConfig{
Name: config.Name + "Edge",
Description: "An edge in a connection",
Fields: graphql.Fields{
"node": &graphql.Field{
Type: config.NodeType,
Description: "The item at the end of the edge",
},
"cursor": &graphql.Field{
Type: graphql.NewNonNull(graphql.String),
Description: " cursor for use in pagination",
},
},
})
for fieldName, fieldConfig := range config.EdgeFields {
edgeType.AddFieldConfig(fieldName, fieldConfig)
}
connectionType := graphql.NewObject(graphql.ObjectConfig{
Name: config.Name + "Connection",
Description: "A connection to a list of items.",
Fields: graphql.Fields{
"pageInfo": &graphql.Field{
Type: graphql.NewNonNull(pageInfoType),
Description: "Information to aid in pagination.",
},
"edges": &graphql.Field{
Type: graphql.NewList(edgeType),
Description: "Information to aid in pagination.",
},
},
})
for fieldName, fieldConfig := range config.ConnectionFields {
connectionType.AddFieldConfig(fieldName, fieldConfig)
}
return &GraphQLConnectionDefinitions{
EdgeType: edgeType,
ConnectionType: connectionType,
}
}
// Describe [T] Func()Array<T> // equivalent to Promise<Array<T>>
func TestLists_ListOfNullableFunc_ContainsValues(t *testing.T) {
ttype := graphql.NewList(graphql.Int)
// `data` is a function that return values
// Note that its uses the expected signature `func() interface{} {...}`
data := func() interface{} {
return []interface{}{
1, 2,
}
}
expected := &graphql.Result{
Data: map[string]interface{}{
"nest": map[string]interface{}{
"test": []interface{}{
1, 2,
},
},
},
}
checkList(t, ttype, data, expected)
}
func (api *ViewAPI) Start() error {
api.Type = graphql.NewObject(graphql.ObjectConfig{
Name: "View",
Fields: graphql.Fields{
"id": relay.GlobalIDField("View", nil),
"createdAt": &graphql.Field{
Description: "When the view was first created.",
Type: graphql.String,
},
"name": &graphql.Field{
Description: "The name to display for the view.",
Type: graphql.String,
},
"searches": &graphql.Field{
Type: graphql.NewList(api.SearchAPI.Type),
Resolve: func(p graphql.ResolveParams) (interface{}, error) {
span := trace.FromContext(p.Context).NewChild("trythings.viewAPI.searches")
defer span.Finish()
v, ok := p.Source.(*View)
if !ok {
return nil, errors.New("expected view source")
}
ss, err := api.SearchService.ByView(p.Context, v)
if err != nil {
return nil, err
}
return ss, nil
},
},
},
Interfaces: []*graphql.Interface{
api.NodeInterface,
},
})
return nil
}
func (t types) getListQuery(idx resource.Index, r *resource.Resource, params url.Values) *graphql.Field {
return &graphql.Field{
Description: fmt.Sprintf("Get a list of %s", r.Name()),
Type: graphql.NewList(t.getObjectType(idx, r)),
Args: listArgs,
Resolve: func(p graphql.ResolveParams) (interface{}, error) {
lookup, page, perPage, err := listParamResolver(r, p, params)
if err != nil {
return nil, err
}
list, err := r.Find(p.Context, lookup, page, perPage)
if err != nil {
return nil, err
}
result := make([]map[string]interface{}, len(list.Items))
for i, item := range list.Items {
result[i] = item.Payload
}
return result, nil
},
}
}
func TestIsTypeOfUsedToResolveRuntimeTypeForInterface(t *testing.T) {
petType := graphql.NewInterface(graphql.InterfaceConfig{
Name: "Pet",
Fields: graphql.FieldConfigMap{
"name": &graphql.FieldConfig{
Type: graphql.String,
},
},
})
// ie declare that Dog belongs to Pet interface
_ = graphql.NewObject(graphql.ObjectConfig{
Name: "Dog",
Interfaces: []*graphql.Interface{
petType,
},
IsTypeOf: func(value interface{}, info graphql.ResolveInfo) bool {
_, ok := value.(*testDog)
return ok
},
Fields: graphql.FieldConfigMap{
"name": &graphql.FieldConfig{
Type: graphql.String,
Resolve: func(p graphql.GQLFRParams) interface{} {
if dog, ok := p.Source.(*testDog); ok {
return dog.Name
}
return nil
},
},
"woofs": &graphql.FieldConfig{
Type: graphql.Boolean,
Resolve: func(p graphql.GQLFRParams) interface{} {
if dog, ok := p.Source.(*testDog); ok {
return dog.Woofs
}
return nil
},
},
},
})
// ie declare that Cat belongs to Pet interface
_ = graphql.NewObject(graphql.ObjectConfig{
Name: "Cat",
Interfaces: []*graphql.Interface{
petType,
},
IsTypeOf: func(value interface{}, info graphql.ResolveInfo) bool {
_, ok := value.(*testCat)
return ok
},
Fields: graphql.FieldConfigMap{
"name": &graphql.FieldConfig{
Type: graphql.String,
Resolve: func(p graphql.GQLFRParams) interface{} {
if cat, ok := p.Source.(*testCat); ok {
return cat.Name
}
return nil
},
},
"meows": &graphql.FieldConfig{
Type: graphql.Boolean,
Resolve: func(p graphql.GQLFRParams) interface{} {
if cat, ok := p.Source.(*testCat); ok {
return cat.Meows
}
return nil
},
},
},
})
schema, err := graphql.NewSchema(graphql.SchemaConfig{
Query: graphql.NewObject(graphql.ObjectConfig{
Name: "Query",
Fields: graphql.FieldConfigMap{
"pets": &graphql.FieldConfig{
Type: graphql.NewList(petType),
Resolve: func(p graphql.GQLFRParams) interface{} {
return []interface{}{
&testDog{"Odie", true},
&testCat{"Garfield", false},
}
},
},
},
}),
})
if err != nil {
t.Fatalf("Error in schema %v", err.Error())
}
query := `{
pets {
name
... on Dog {
woofs
}
... on Cat {
meows
}
}
}`
expected := &graphql.Result{
Data: map[string]interface{}{
"pets": []interface{}{
map[string]interface{}{
"name": "Odie",
"woofs": bool(true),
},
map[string]interface{}{
"name": "Garfield",
"meows": bool(false),
},
},
},
Errors: nil,
}
result := graphql.Graphql(graphql.Params{
Schema: schema,
RequestString: query,
})
if len(result.Errors) != 0 {
t.Fatalf("wrong result, unexpected errors: %v", result.Errors)
}
if !reflect.DeepEqual(expected, result) {
t.Fatalf("Unexpected result, Diff: %v", testutil.Diff(expected, result))
}
}
func (api *UserAPI) Start() error {
api.Type = graphql.NewObject(graphql.ObjectConfig{
Name: "User",
Description: "User represents a person who can interact with the app.",
Fields: graphql.Fields{
"id": relay.GlobalIDField("User", nil),
"isAdmin": &graphql.Field{
Description: "Whether or not the user is an Ellie's Pad admin.",
Type: graphql.Boolean,
},
"email": &graphql.Field{
Description: "The user's email primary address.",
Type: graphql.String,
},
"name": &graphql.Field{
Description: "The user's full name.",
Type: graphql.String,
},
"givenName": &graphql.Field{
Description: "The user's given name.",
Type: graphql.String,
},
"familyName": &graphql.Field{
Description: "The user's family name.",
Type: graphql.String,
},
"imageUrl": &graphql.Field{
Description: "The user's profile picture URL.",
Type: graphql.String,
},
"space": &graphql.Field{
Args: graphql.FieldConfigArgument{
"id": &graphql.ArgumentConfig{
Type: graphql.String,
DefaultValue: "",
Description: "id can be omitted, which will have space resolve to the user's default space.",
},
},
Description: "space is a disjoint universe of views, searches and tasks.",
Type: api.SpaceAPI.Type,
Resolve: func(p graphql.ResolveParams) (interface{}, error) {
span := trace.FromContext(p.Context).NewChild("trythings.userAPI.space")
defer span.Finish()
id, ok := p.Args["id"].(string)
if ok {
resolvedID := relay.FromGlobalID(id)
if resolvedID == nil {
return nil, fmt.Errorf("invalid id %q", id)
}
sp, err := api.SpaceService.ByID(p.Context, resolvedID.ID)
if err != nil {
return nil, err
}
return sp, nil
}
u, ok := p.Source.(*User)
if !ok {
return nil, errors.New("expected user source")
}
sps, err := api.SpaceService.ByUser(p.Context, u)
if err != nil {
return nil, err
}
if len(sps) == 0 {
return nil, errors.New("could not find default space for user")
}
return sps[0], nil
},
},
"spaces": &graphql.Field{
Type: graphql.NewList(api.SpaceAPI.Type),
Resolve: func(p graphql.ResolveParams) (interface{}, error) {
span := trace.FromContext(p.Context).NewChild("trythings.userAPI.spaces")
defer span.Finish()
u, ok := p.Source.(*User)
if !ok {
return nil, errors.New("expected user source")
}
sps, err := api.SpaceService.ByUser(p.Context, u)
if err != nil {
return nil, err
}
return sps, nil
},
},
},
Interfaces: []*graphql.Interface{
api.NodeInterface,
},
})
return nil
}
func init() {
Luke = StarWarsChar{
ID: "1000",
Name: "Luke Skywalker",
AppearsIn: []int{4, 5, 6},
HomePlanet: "Tatooine",
}
Vader = StarWarsChar{
ID: "1001",
Name: "Darth Vader",
AppearsIn: []int{4, 5, 6},
HomePlanet: "Tatooine",
}
Han = StarWarsChar{
ID: "1002",
Name: "Han Solo",
AppearsIn: []int{4, 5, 6},
}
Leia = StarWarsChar{
ID: "1003",
Name: "Leia Organa",
AppearsIn: []int{4, 5, 6},
HomePlanet: "Alderaa",
}
Tarkin = StarWarsChar{
ID: "1004",
Name: "Wilhuff Tarkin",
AppearsIn: []int{4},
}
Threepio = StarWarsChar{
ID: "2000",
Name: "C-3PO",
AppearsIn: []int{4, 5, 6},
PrimaryFunction: "Protocol",
}
Artoo = StarWarsChar{
ID: "2001",
Name: "R2-D2",
AppearsIn: []int{4, 5, 6},
PrimaryFunction: "Astromech",
}
Luke.Friends = append(Luke.Friends, []StarWarsChar{Han, Leia, Threepio, Artoo}...)
Vader.Friends = append(Luke.Friends, []StarWarsChar{Tarkin}...)
Han.Friends = append(Han.Friends, []StarWarsChar{Luke, Leia, Artoo}...)
Leia.Friends = append(Leia.Friends, []StarWarsChar{Luke, Han, Threepio, Artoo}...)
Tarkin.Friends = append(Tarkin.Friends, []StarWarsChar{Vader}...)
Threepio.Friends = append(Threepio.Friends, []StarWarsChar{Luke, Han, Leia, Artoo}...)
Artoo.Friends = append(Artoo.Friends, []StarWarsChar{Luke, Han, Leia}...)
HumanData = map[int]StarWarsChar{
1000: Luke,
1001: Vader,
1002: Han,
1003: Leia,
1004: Tarkin,
}
DroidData = map[int]StarWarsChar{
2000: Threepio,
2001: Artoo,
}
episodeEnum := graphql.NewEnum(graphql.EnumConfig{
Name: "Episode",
Description: "One of the films in the Star Wars Trilogy",
Values: graphql.EnumValueConfigMap{
"NEWHOPE": &graphql.EnumValueConfig{
Value: 4,
Description: "Released in 1977.",
},
"EMPIRE": &graphql.EnumValueConfig{
Value: 5,
Description: "Released in 1980.",
},
"JEDI": &graphql.EnumValueConfig{
Value: 6,
Description: "Released in 1983.",
},
},
})
characterInterface := graphql.NewInterface(graphql.InterfaceConfig{
Name: "Character",
Description: "A character in the Star Wars Trilogy",
Fields: graphql.Fields{
"id": &graphql.Field{
Type: graphql.NewNonNull(graphql.String),
Description: "The id of the character.",
},
"name": &graphql.Field{
Type: graphql.String,
Description: "The name of the character.",
},
"appearsIn": &graphql.Field{
Type: graphql.NewList(episodeEnum),
Description: "Which movies they appear in.",
},
},
ResolveType: func(p graphql.ResolveTypeParams) *graphql.Object {
if character, ok := p.Value.(StarWarsChar); ok {
id, _ := strconv.Atoi(character.ID)
human := GetHuman(id)
if human.ID != "" {
return humanType
}
}
return droidType
},
})
characterInterface.AddFieldConfig("friends", &graphql.Field{
Type: graphql.NewList(characterInterface),
Description: "The friends of the character, or an empty list if they have none.",
})
humanType = graphql.NewObject(graphql.ObjectConfig{
Name: "Human",
Description: "A humanoid creature in the Star Wars universe.",
Fields: graphql.Fields{
"id": &graphql.Field{
Type: graphql.NewNonNull(graphql.String),
Description: "The id of the human.",
Resolve: func(p graphql.ResolveParams) (interface{}, error) {
if human, ok := p.Source.(StarWarsChar); ok {
return human.ID, nil
}
return nil, nil
},
},
"name": &graphql.Field{
Type: graphql.String,
Description: "The name of the human.",
Resolve: func(p graphql.ResolveParams) (interface{}, error) {
if human, ok := p.Source.(StarWarsChar); ok {
return human.Name, nil
}
return nil, nil
},
},
"friends": &graphql.Field{
Type: graphql.NewList(characterInterface),
Description: "The friends of the human, or an empty list if they have none.",
Resolve: func(p graphql.ResolveParams) (interface{}, error) {
if human, ok := p.Source.(StarWarsChar); ok {
return human.Friends, nil
}
return []interface{}{}, nil
},
},
"appearsIn": &graphql.Field{
Type: graphql.NewList(episodeEnum),
Description: "Which movies they appear in.",
Resolve: func(p graphql.ResolveParams) (interface{}, error) {
if human, ok := p.Source.(StarWarsChar); ok {
return human.AppearsIn, nil
}
return nil, nil
},
},
"homePlanet": &graphql.Field{
Type: graphql.String,
Description: "The home planet of the human, or null if unknown.",
Resolve: func(p graphql.ResolveParams) (interface{}, error) {
if human, ok := p.Source.(StarWarsChar); ok {
return human.HomePlanet, nil
}
return nil, nil
},
},
},
Interfaces: []*graphql.Interface{
characterInterface,
},
})
droidType = graphql.NewObject(graphql.ObjectConfig{
Name: "Droid",
Description: "A mechanical creature in the Star Wars universe.",
Fields: graphql.Fields{
"id": &graphql.Field{
Type: graphql.NewNonNull(graphql.String),
Description: "The id of the droid.",
Resolve: func(p graphql.ResolveParams) (interface{}, error) {
if droid, ok := p.Source.(StarWarsChar); ok {
return droid.ID, nil
}
return nil, nil
},
},
"name": &graphql.Field{
Type: graphql.String,
Description: "The name of the droid.",
Resolve: func(p graphql.ResolveParams) (interface{}, error) {
if droid, ok := p.Source.(StarWarsChar); ok {
return droid.Name, nil
}
return nil, nil
},
},
"friends": &graphql.Field{
Type: graphql.NewList(characterInterface),
Description: "The friends of the droid, or an empty list if they have none.",
Resolve: func(p graphql.ResolveParams) (interface{}, error) {
if droid, ok := p.Source.(StarWarsChar); ok {
friends := []map[string]interface{}{}
for _, friend := range droid.Friends {
friends = append(friends, map[string]interface{}{
"name": friend.Name,
"id": friend.ID,
})
}
return droid.Friends, nil
}
return []interface{}{}, nil
},
},
"appearsIn": &graphql.Field{
Type: graphql.NewList(episodeEnum),
Description: "Which movies they appear in.",
Resolve: func(p graphql.ResolveParams) (interface{}, error) {
if droid, ok := p.Source.(StarWarsChar); ok {
return droid.AppearsIn, nil
}
return nil, nil
},
},
"primaryFunction": &graphql.Field{
Type: graphql.String,
Description: "The primary function of the droid.",
Resolve: func(p graphql.ResolveParams) (interface{}, error) {
if droid, ok := p.Source.(StarWarsChar); ok {
return droid.PrimaryFunction, nil
}
return nil, nil
},
},
},
Interfaces: []*graphql.Interface{
characterInterface,
},
})
queryType := graphql.NewObject(graphql.ObjectConfig{
Name: "Query",
Fields: graphql.Fields{
"hero": &graphql.Field{
Type: characterInterface,
Args: graphql.FieldConfigArgument{
"episode": &graphql.ArgumentConfig{
Description: "If omitted, returns the hero of the whole saga. If " +
"provided, returns the hero of that particular episode.",
Type: episodeEnum,
},
},
Resolve: func(p graphql.ResolveParams) (interface{}, error) {
return GetHero(p.Args["episode"]), nil
},
},
"human": &graphql.Field{
Type: humanType,
Args: graphql.FieldConfigArgument{
"id": &graphql.ArgumentConfig{
Description: "id of the human",
Type: graphql.NewNonNull(graphql.String),
},
},
Resolve: func(p graphql.ResolveParams) (interface{}, error) {
return GetHuman(p.Args["id"].(int)), nil
},
},
"droid": &graphql.Field{
Type: droidType,
Args: graphql.FieldConfigArgument{
"id": &graphql.ArgumentConfig{
Description: "id of the droid",
Type: graphql.NewNonNull(graphql.String),
},
},
Resolve: func(p graphql.ResolveParams) (interface{}, error) {
return GetDroid(p.Args["id"].(int)), nil
},
},
},
})
StarWarsSchema, _ = graphql.NewSchema(graphql.SchemaConfig{
Query: queryType,
})
}
astValue := valueAST.GetValue()
if astValue, ok := astValue.(string); ok && astValue == "SerializedValue" {
return "DeserializedValue"
}
return nil
},
})
var testInputObject *graphql.InputObject = graphql.NewInputObject(graphql.InputObjectConfig{
Name: "TestInputObject",
Fields: graphql.InputObjectConfigFieldMap{
"a": &graphql.InputObjectFieldConfig{
Type: graphql.String,
},
"b": &graphql.InputObjectFieldConfig{
Type: graphql.NewList(graphql.String),
},
"c": &graphql.InputObjectFieldConfig{
Type: graphql.NewNonNull(graphql.String),
},
"d": &graphql.InputObjectFieldConfig{
Type: testComplexScalar,
},
},
})
func inputResolved(p graphql.ResolveParams) interface{} {
input, ok := p.Args["input"]
if !ok {
return nil
}
func TestFailsWhenAnIsTypeOfCheckIsNotMet(t *testing.T) {
query := `{ specials { value } }`
data := map[string]interface{}{
"specials": []interface{}{
testSpecialType{"foo"},
testNotSpecialType{"bar"},
},
}
expected := &graphql.Result{
Data: map[string]interface{}{
"specials": []interface{}{
map[string]interface{}{
"value": "foo",
},
nil,
},
},
Errors: []gqlerrors.FormattedError{
{
Message: `Expected value of type "SpecialType" but got: graphql_test.testNotSpecialType.`,
Locations: []location.SourceLocation{},
},
},
}
specialType := graphql.NewObject(graphql.ObjectConfig{
Name: "SpecialType",
IsTypeOf: func(p graphql.IsTypeOfParams) bool {
if _, ok := p.Value.(testSpecialType); ok {
return true
}
return false
},
Fields: graphql.Fields{
"value": &graphql.Field{
Type: graphql.String,
Resolve: func(p graphql.ResolveParams) (interface{}, error) {
return p.Source.(testSpecialType).Value, nil
},
},
},
})
schema, err := graphql.NewSchema(graphql.SchemaConfig{
Query: graphql.NewObject(graphql.ObjectConfig{
Name: "Query",
Fields: graphql.Fields{
"specials": &graphql.Field{
Type: graphql.NewList(specialType),
Resolve: func(p graphql.ResolveParams) (interface{}, error) {
return p.Source.(map[string]interface{})["specials"], nil
},
},
},
}),
})
if err != nil {
t.Fatalf("Error in schema %v", err.Error())
}
// parse query
ast := testutil.TestParse(t, query)
// execute
ep := graphql.ExecuteParams{
Schema: schema,
AST: ast,
Root: data,
}
result := testutil.TestExecute(t, ep)
if len(result.Errors) == 0 {
t.Fatalf("wrong result, unexpected errors: %v", result.Errors)
}
if !reflect.DeepEqual(expected, result) {
t.Fatalf("Unexpected result, Diff: %v", testutil.Diff(expected, result))
}
}
func TestExecutesArbitraryCode(t *testing.T) {
deepData := map[string]interface{}{}
data := map[string]interface{}{
"a": func() interface{} { return "Apple" },
"b": func() interface{} { return "Banana" },
"c": func() interface{} { return "Cookie" },
"d": func() interface{} { return "Donut" },
"e": func() interface{} { return "Egg" },
"f": "Fish",
"pic": func(size int) string {
return fmt.Sprintf("Pic of size: %v", size)
},
"deep": func() interface{} { return deepData },
}
data["promise"] = func() interface{} {
return data
}
deepData = map[string]interface{}{
"a": func() interface{} { return "Already Been Done" },
"b": func() interface{} { return "Boring" },
"c": func() interface{} { return []string{"Contrived", "", "Confusing"} },
"deeper": func() interface{} { return []interface{}{data, nil, data} },
}
query := `
query Example($size: Int) {
a,
b,
x: c
...c
f
...on DataType {
pic(size: $size)
promise {
a
}
}
deep {
a
b
c
deeper {
a
b
}
}
}
fragment c on DataType {
d
e
}
`
expected := &graphql.Result{
Data: map[string]interface{}{
"b": "Banana",
"x": "Cookie",
"d": "Donut",
"e": "Egg",
"promise": map[string]interface{}{
"a": "Apple",
},
"a": "Apple",
"deep": map[string]interface{}{
"a": "Already Been Done",
"b": "Boring",
"c": []interface{}{
"Contrived",
nil,
"Confusing",
},
"deeper": []interface{}{
map[string]interface{}{
"a": "Apple",
"b": "Banana",
},
nil,
map[string]interface{}{
"a": "Apple",
"b": "Banana",
},
},
},
"f": "Fish",
"pic": "Pic of size: 100",
},
}
// Schema Definitions
picResolverFn := func(p graphql.ResolveParams) (interface{}, error) {
// get and type assert ResolveFn for this field
picResolver, ok := p.Source.(map[string]interface{})["pic"].(func(size int) string)
if !ok {
return nil, nil
}
// get and type assert argument
sizeArg, ok := p.Args["size"].(int)
if !ok {
return nil, nil
}
return picResolver(sizeArg), nil
}
dataType := graphql.NewObject(graphql.ObjectConfig{
Name: "DataType",
Fields: graphql.Fields{
"a": &graphql.Field{
Type: graphql.String,
},
"b": &graphql.Field{
Type: graphql.String,
},
"c": &graphql.Field{
Type: graphql.String,
},
"d": &graphql.Field{
Type: graphql.String,
},
"e": &graphql.Field{
Type: graphql.String,
},
"f": &graphql.Field{
Type: graphql.String,
},
"pic": &graphql.Field{
Args: graphql.FieldConfigArgument{
"size": &graphql.ArgumentConfig{
Type: graphql.Int,
},
},
Type: graphql.String,
Resolve: picResolverFn,
},
},
})
deepDataType := graphql.NewObject(graphql.ObjectConfig{
Name: "DeepDataType",
Fields: graphql.Fields{
"a": &graphql.Field{
Type: graphql.String,
},
"b": &graphql.Field{
Type: graphql.String,
},
"c": &graphql.Field{
Type: graphql.NewList(graphql.String),
},
"deeper": &graphql.Field{
Type: graphql.NewList(dataType),
},
},
})
// Exploring a way to have a Object within itself
// in this case DataType has DeepDataType has DataType
dataType.AddFieldConfig("deep", &graphql.Field{
Type: deepDataType,
})
// in this case DataType has DataType
dataType.AddFieldConfig("promise", &graphql.Field{
Type: dataType,
})
schema, err := graphql.NewSchema(graphql.SchemaConfig{
Query: dataType,
})
if err != nil {
t.Fatalf("Error in schema %v", err.Error())
}
// parse query
astDoc := testutil.TestParse(t, query)
// execute
args := map[string]interface{}{
"size": 100,
}
operationName := "Example"
ep := graphql.ExecuteParams{
Schema: schema,
Root: data,
AST: astDoc,
OperationName: operationName,
Args: args,
}
result := testutil.TestExecute(t, ep)
if len(result.Errors) > 0 {
t.Fatalf("wrong result, unexpected errors: %v", result.Errors)
}
if !reflect.DeepEqual(expected, result) {
t.Fatalf("Unexpected result, Diff: %v", testutil.Diff(expected, result))
}
}
func TestIntrospection_ExecutesAnInputObject(t *testing.T) {
testInputObject := graphql.NewInputObject(graphql.InputObjectConfig{
Name: "TestInputObject",
Fields: graphql.InputObjectConfigFieldMap{
"a": &graphql.InputObjectFieldConfig{
Type: graphql.String,
DefaultValue: "foo",
},
"b": &graphql.InputObjectFieldConfig{
Type: graphql.NewList(graphql.String),
},
},
})
testType := graphql.NewObject(graphql.ObjectConfig{
Name: "TestType",
Fields: graphql.Fields{
"field": &graphql.Field{
Type: graphql.String,
Args: graphql.FieldConfigArgument{
"complex": &graphql.ArgumentConfig{
Type: testInputObject,
},
},
Resolve: func(p graphql.ResolveParams) (interface{}, error) {
return p.Args["complex"], nil
},
},
},
})
schema, err := graphql.NewSchema(graphql.SchemaConfig{
Query: testType,
})
if err != nil {
t.Fatalf("Error creating Schema: %v", err.Error())
}
query := `
{
__schema {
types {
kind
name
inputFields {
name
type { ...TypeRef }
defaultValue
}
}
}
}
fragment TypeRef on __Type {
kind
name
ofType {
kind
name
ofType {
kind
name
ofType {
kind
name
}
}
}
}
`
expectedDataSubSet := map[string]interface{}{
"__schema": map[string]interface{}{
"types": []interface{}{
map[string]interface{}{
"kind": "INPUT_OBJECT",
"name": "TestInputObject",
"inputFields": []interface{}{
map[string]interface{}{
"name": "a",
"type": map[string]interface{}{
"kind": "SCALAR",
"name": "String",
"ofType": nil,
},
"defaultValue": `"foo"`,
},
map[string]interface{}{
"name": "b",
"type": map[string]interface{}{
"kind": "LIST",
"name": nil,
"ofType": map[string]interface{}{
"kind": "SCALAR",
"name": "String",
"ofType": nil,
},
},
"defaultValue": nil,
},
},
},
},
},
}
result := g(t, graphql.Params{
Schema: schema,
RequestString: query,
})
if !testutil.ContainSubset(result.Data.(map[string]interface{}), expectedDataSubSet) {
t.Fatalf("unexpected, result does not contain subset of expected data")
}
}
func TestResolveTypeOnUnionYieldsUsefulError(t *testing.T) {
humanType := graphql.NewObject(graphql.ObjectConfig{
Name: "Human",
Fields: graphql.FieldConfigMap{
"name": &graphql.FieldConfig{
Type: graphql.String,
Resolve: func(p graphql.GQLFRParams) interface{} {
if human, ok := p.Source.(*testHuman); ok {
return human.Name
}
return nil
},
},
},
})
dogType := graphql.NewObject(graphql.ObjectConfig{
Name: "Dog",
IsTypeOf: func(value interface{}, info graphql.ResolveInfo) bool {
_, ok := value.(*testDog)
return ok
},
Fields: graphql.FieldConfigMap{
"name": &graphql.FieldConfig{
Type: graphql.String,
Resolve: func(p graphql.GQLFRParams) interface{} {
if dog, ok := p.Source.(*testDog); ok {
return dog.Name
}
return nil
},
},
"woofs": &graphql.FieldConfig{
Type: graphql.Boolean,
Resolve: func(p graphql.GQLFRParams) interface{} {
if dog, ok := p.Source.(*testDog); ok {
return dog.Woofs
}
return nil
},
},
},
})
catType := graphql.NewObject(graphql.ObjectConfig{
Name: "Cat",
IsTypeOf: func(value interface{}, info graphql.ResolveInfo) bool {
_, ok := value.(*testCat)
return ok
},
Fields: graphql.FieldConfigMap{
"name": &graphql.FieldConfig{
Type: graphql.String,
Resolve: func(p graphql.GQLFRParams) interface{} {
if cat, ok := p.Source.(*testCat); ok {
return cat.Name
}
return nil
},
},
"meows": &graphql.FieldConfig{
Type: graphql.Boolean,
Resolve: func(p graphql.GQLFRParams) interface{} {
if cat, ok := p.Source.(*testCat); ok {
return cat.Meows
}
return nil
},
},
},
})
petType := graphql.NewUnion(graphql.UnionConfig{
Name: "Pet",
Types: []*graphql.Object{
dogType, catType,
},
ResolveType: func(value interface{}, info graphql.ResolveInfo) *graphql.Object {
if _, ok := value.(*testCat); ok {
return catType
}
if _, ok := value.(*testDog); ok {
return dogType
}
if _, ok := value.(*testHuman); ok {
return humanType
}
return nil
},
})
schema, err := graphql.NewSchema(graphql.SchemaConfig{
Query: graphql.NewObject(graphql.ObjectConfig{
Name: "Query",
Fields: graphql.FieldConfigMap{
"pets": &graphql.FieldConfig{
Type: graphql.NewList(petType),
Resolve: func(p graphql.GQLFRParams) interface{} {
return []interface{}{
&testDog{"Odie", true},
&testCat{"Garfield", false},
&testHuman{"Jon"},
}
},
},
},
}),
})
if err != nil {
t.Fatalf("Error in schema %v", err.Error())
}
query := `{
pets {
name
... on Dog {
woofs
}
... on Cat {
meows
}
}
}`
expected := &graphql.Result{
Data: map[string]interface{}{
"pets": []interface{}{
map[string]interface{}{
"name": "Odie",
"woofs": bool(true),
},
map[string]interface{}{
"name": "Garfield",
"meows": bool(false),
},
nil,
},
},
Errors: []gqlerrors.FormattedError{
gqlerrors.FormattedError{
Message: `Runtime Object type "Human" is not a possible type for "Pet".`,
Locations: []location.SourceLocation{},
},
},
}
result := graphql.Graphql(graphql.Params{
Schema: schema,
RequestString: query,
})
if len(result.Errors) == 0 {
t.Fatalf("wrong result, expected errors: %v, got: %v", len(expected.Errors), len(result.Errors))
}
if !reflect.DeepEqual(expected, result) {
t.Fatalf("Unexpected result, Diff: %v", testutil.Diff(expected, result))
}
}