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_AcceptsAnObjectWithAnEquivalentlyModifiedInterfaceField(t *testing.T) { anotherInterface := graphql.NewInterface(graphql.InterfaceConfig{ Name: "AnotherInterface", ResolveType: func(value interface{}, info graphql.ResolveInfo) *graphql.Object { return nil }, Fields: graphql.Fields{ "field": &graphql.Field{ Type: graphql.NewNonNull(graphql.NewList(graphql.String)), }, }, }) anotherObject := graphql.NewObject(graphql.ObjectConfig{ Name: "AnotherObject", Interfaces: []*graphql.Interface{anotherInterface}, Fields: graphql.Fields{ "field": &graphql.Field{ Type: graphql.NewNonNull(graphql.NewList(graphql.String)), }, }, }) _, err := schemaWithObjectFieldOfType(anotherObject) if err != nil { t.Fatalf(`unexpected error: %v for type "%v"`, err, anotherObject) } }
func TestTypeSystem_DefinitionExample_ProhibitsNestingNonNullInsideNonNull(t *testing.T) { ttype := graphql.NewNonNull(graphql.NewNonNull(graphql.Int)) expected := `Can only create NonNull of a Nullable Type but got: Int!.` if ttype.Error().Error() != expected { t.Fatalf(`expected %v , got: %v`, expected, ttype.Error()) } }
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_StringifiesSimpleTypes(t *testing.T) { type Test struct { ttype graphql.Type expected string } tests := []Test{ Test{graphql.Int, "Int"}, Test{blogArticle, "Article"}, Test{interfaceType, "Interface"}, Test{unionType, "Union"}, Test{enumType, "Enum"}, Test{inputObjectType, "InputObject"}, Test{graphql.NewNonNull(graphql.Int), "Int!"}, Test{graphql.NewList(graphql.Int), "[Int]"}, Test{graphql.NewNonNull(graphql.NewList(graphql.Int)), "[Int]!"}, Test{graphql.NewList(graphql.NewNonNull(graphql.Int)), "[Int!]"}, Test{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 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 TestTypeSystem_ObjectsMustAdhereToInterfaceTheyImplement_RejectsAnObjectWithADifferentlyModifiedInterfaceFieldType(t *testing.T) { anotherInterface := graphql.NewInterface(graphql.InterfaceConfig{ Name: "AnotherInterface", ResolveType: func(value interface{}, info graphql.ResolveInfo) *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.NewNonNull(graphql.String), }, }, }) _, err := schemaWithObjectFieldOfType(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) } }
func TestTypeSystem_NonNullMustAcceptGraphQLTypes_RejectsNilAsNonNullableType(t *testing.T) { result := graphql.NewNonNull(nil) expectedError := `Can only create NonNull of a Nullable Type but got: <nil>.` if result.Error() == nil || result.Error().Error() != expectedError { t.Fatalf("Expected error: %v, got %v", expectedError, result.Error()) } }
// 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_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 TestTypeSystem_DefinitionExample_IdentifiesOutputTypes(t *testing.T) { type Test struct { ttype graphql.Type expected bool } tests := []Test{ Test{graphql.Int, true}, Test{objectType, true}, Test{interfaceType, true}, Test{unionType, true}, Test{enumType, true}, Test{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.Error() != nil { t.Fatalf(`unexpected error: %v for type "%v"`, result.Error(), ttype) } } }
func TestLists_NullableListOfNonNullObjects_ReturnsNull(t *testing.T) { ttype := graphql.NewList(graphql.NewNonNull(graphql.Int)) expected := &graphql.Result{ Data: map[string]interface{}{ "nest": map[string]interface{}{ "test": nil, }, }, } checkList(t, ttype, nil, expected) }
// Describe [T!]! Func()Array<T> // equivalent to Promise<Array<T>> func TestLists_NonNullListOfNonNullFunc_ContainsValues(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 []interface{}{ 1, 2, } } expected := &graphql.Result{ Data: map[string]interface{}{ "nest": map[string]interface{}{ "test": []interface{}{ 1, 2, }, }, }, } checkList(t, ttype, data, expected) }
func init() { throwingData["nest"] = func() interface{} { return throwingData } throwingData["nonNullNest"] = func() interface{} { return throwingData } throwingData["promiseNest"] = func() interface{} { return throwingData } throwingData["nonNullPromiseNest"] = func() interface{} { return throwingData } nullingData["nest"] = func() interface{} { return nullingData } nullingData["nonNullNest"] = func() interface{} { return nullingData } nullingData["promiseNest"] = func() interface{} { return nullingData } nullingData["nonNullPromiseNest"] = func() interface{} { return nullingData } dataType.AddFieldConfig("nest", &graphql.Field{ Type: dataType, }) dataType.AddFieldConfig("nonNullNest", &graphql.Field{ Type: graphql.NewNonNull(dataType), }) dataType.AddFieldConfig("promiseNest", &graphql.Field{ Type: dataType, }) dataType.AddFieldConfig("nonNullPromiseNest", &graphql.Field{ Type: graphql.NewNonNull(dataType), }) }
func TestExecutesUsingAComplexSchema(t *testing.T) { johnSmith = &testAuthor{ Id: 123, Name: "John Smith", Pic: func(width string, height string) *testPic { return getPic(123, width, height) }, RecentArticle: article("1"), } blogImage := graphql.NewObject(graphql.ObjectConfig{ Name: "Image", Fields: graphql.Fields{ "url": &graphql.Field{ Type: graphql.String, }, "width": &graphql.Field{ Type: graphql.Int, }, "height": &graphql.Field{ Type: graphql.Int, }, }, }) blogAuthor := graphql.NewObject(graphql.ObjectConfig{ Name: "Author", Fields: graphql.Fields{ "id": &graphql.Field{ Type: graphql.String, }, "name": &graphql.Field{ Type: graphql.String, }, "pic": &graphql.Field{ Type: blogImage, Args: graphql.FieldConfigArgument{ "width": &graphql.ArgumentConfig{ Type: graphql.Int, }, "height": &graphql.ArgumentConfig{ Type: graphql.Int, }, }, Resolve: func(p graphql.ResolveParams) interface{} { if author, ok := p.Source.(*testAuthor); ok { width := fmt.Sprintf("%v", p.Args["width"]) height := fmt.Sprintf("%v", p.Args["height"]) return author.Pic(width, height) } return nil }, }, "recentArticle": &graphql.Field{}, }, }) blogArticle := graphql.NewObject(graphql.ObjectConfig{ Name: "Article", Fields: graphql.Fields{ "id": &graphql.Field{ Type: graphql.NewNonNull(graphql.String), }, "isPublished": &graphql.Field{ Type: graphql.Boolean, }, "author": &graphql.Field{ Type: blogAuthor, }, "title": &graphql.Field{ Type: graphql.String, }, "body": &graphql.Field{ Type: graphql.String, }, "keywords": &graphql.Field{ Type: graphql.NewList(graphql.String), }, }, }) blogAuthor.AddFieldConfig("recentArticle", &graphql.Field{ Type: blogArticle, }) blogQuery := graphql.NewObject(graphql.ObjectConfig{ Name: "Query", Fields: graphql.Fields{ "article": &graphql.Field{ Type: blogArticle, Args: graphql.FieldConfigArgument{ "id": &graphql.ArgumentConfig{ Type: graphql.ID, }, }, Resolve: func(p graphql.ResolveParams) interface{} { id := p.Args["id"] return article(id) }, }, "feed": &graphql.Field{ Type: graphql.NewList(blogArticle), Resolve: func(p graphql.ResolveParams) interface{} { return []*testArticle{ article(1), article(2), article(3), article(4), article(5), article(6), article(7), article(8), article(9), article(10), } }, }, }, }) blogSchema, err := graphql.NewSchema(graphql.SchemaConfig{ Query: blogQuery, }) if err != nil { t.Fatalf("Error in schema %v", err.Error()) } request := ` { feed { id, title }, article(id: "1") { ...articleFields, author { id, name, pic(width: 640, height: 480) { url, width, height }, recentArticle { ...articleFields, keywords } } } } fragment articleFields on Article { id, isPublished, title, body, hidden, notdefined } ` expected := &graphql.Result{ Data: map[string]interface{}{ "article": map[string]interface{}{ "title": "My Article 1", "body": "This is a post", "author": map[string]interface{}{ "id": "123", "name": "John Smith", "pic": map[string]interface{}{ "url": "cdn://123", "width": 640, "height": 480, }, "recentArticle": map[string]interface{}{ "id": "1", "isPublished": bool(true), "title": "My Article 1", "body": "This is a post", "keywords": []interface{}{ "foo", "bar", "1", "true", nil, }, }, }, "id": "1", "isPublished": bool(true), }, "feed": []interface{}{ map[string]interface{}{ "id": "1", "title": "My Article 1", }, map[string]interface{}{ "id": "2", "title": "My Article 2", }, map[string]interface{}{ "id": "3", "title": "My Article 3", }, map[string]interface{}{ "id": "4", "title": "My Article 4", }, map[string]interface{}{ "id": "5", "title": "My Article 5", }, map[string]interface{}{ "id": "6", "title": "My Article 6", }, map[string]interface{}{ "id": "7", "title": "My Article 7", }, map[string]interface{}{ "id": "8", "title": "My Article 8", }, map[string]interface{}{ "id": "9", "title": "My Article 9", }, map[string]interface{}{ "id": "10", "title": "My Article 10", }, }, }, } // parse query ast := testutil.TestParse(t, request) // execute ep := graphql.ExecuteParams{ Schema: blogSchema, AST: ast, } 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)) } }
"promise": func() interface{} { return nil }, "nonNullPromise": func() interface{} { return nil }, } var dataType = graphql.NewObject(graphql.ObjectConfig{ Name: "DataType", Fields: graphql.Fields{ "sync": &graphql.Field{ Type: graphql.String, }, "nonNullSync": &graphql.Field{ Type: graphql.NewNonNull(graphql.String), }, "promise": &graphql.Field{ Type: graphql.String, }, "nonNullPromise": &graphql.Field{ Type: graphql.NewNonNull(graphql.String), }, }, }) var nonNullTestSchema, _ = graphql.NewSchema(graphql.SchemaConfig{ Query: dataType, }) func init() {
} 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 } b, err := json.Marshal(input) if err != nil { 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(value interface{}, info graphql.ResolveInfo) *graphql.Object { if character, ok := 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{} { if human, ok := p.Source.(StarWarsChar); ok { return human.Id } return nil }, }, "name": &graphql.Field{ Type: graphql.String, Description: "The name of the human.", Resolve: func(p graphql.ResolveParams) interface{} { if human, ok := p.Source.(StarWarsChar); ok { return human.Name } return 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{} { if human, ok := p.Source.(StarWarsChar); ok { return human.Friends } return []interface{}{} }, }, "appearsIn": &graphql.Field{ Type: graphql.NewList(episodeEnum), Description: "Which movies they appear in.", Resolve: func(p graphql.ResolveParams) interface{} { if human, ok := p.Source.(StarWarsChar); ok { return human.AppearsIn } return nil }, }, "homePlanet": &graphql.Field{ Type: graphql.String, Description: "The home planet of the human, or null if unknown.", Resolve: func(p graphql.ResolveParams) interface{} { if human, ok := p.Source.(StarWarsChar); ok { return human.HomePlanet } return 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{} { if droid, ok := p.Source.(StarWarsChar); ok { return droid.Id } return nil }, }, "name": &graphql.Field{ Type: graphql.String, Description: "The name of the droid.", Resolve: func(p graphql.ResolveParams) interface{} { if droid, ok := p.Source.(StarWarsChar); ok { return droid.Name } return 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{} { 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 } return []interface{}{} }, }, "appearsIn": &graphql.Field{ Type: graphql.NewList(episodeEnum), Description: "Which movies they appear in.", Resolve: func(p graphql.ResolveParams) interface{} { if droid, ok := p.Source.(StarWarsChar); ok { return droid.AppearsIn } return nil }, }, "primaryFunction": &graphql.Field{ Type: graphql.String, Description: "The primary function of the droid.", Resolve: func(p graphql.ResolveParams) interface{} { if droid, ok := p.Source.(StarWarsChar); ok { return droid.PrimaryFunction } return 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) (r interface{}) { return GetHero(p.Args["episode"]) }, }, "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) (r interface{}) { return GetHuman(p.Args["id"].(int)) }, }, "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) (r interface{}) { return GetDroid(p.Args["id"].(int)) }, }, }, }) StarWarsSchema, _ = graphql.NewSchema(graphql.SchemaConfig{ Query: queryType, }) }