func init() {
nodeTestUserType = graphql.NewObject(graphql.ObjectConfig{
Name: "User",
Fields: graphql.Fields{
"id": &graphql.Field{
Type: graphql.NewNonNull(graphql.ID),
},
"name": &graphql.Field{
Type: graphql.String,
},
},
Interfaces: []*graphql.Interface{nodeTestDef.NodeInterface},
})
nodeTestPhotoType = graphql.NewObject(graphql.ObjectConfig{
Name: "Photo",
Fields: graphql.Fields{
"id": &graphql.Field{
Type: graphql.NewNonNull(graphql.ID),
},
"width": &graphql.Field{
Type: graphql.Int,
},
},
Interfaces: []*graphql.Interface{nodeTestDef.NodeInterface},
})
nodeTestSchema, _ = graphql.NewSchema(graphql.SchemaConfig{
Query: nodeTestQueryType,
})
}
func schemaWithArgOfType(ttype graphql.Type) (graphql.Schema, error) {
badObject := graphql.NewObject(graphql.ObjectConfig{
Name: "BadObject",
Fields: graphql.Fields{
"badField": &graphql.Field{
Type: graphql.String,
Args: graphql.FieldConfigArgument{
"badArg": &graphql.ArgumentConfig{
Type: ttype,
},
},
},
},
})
return graphql.NewSchema(graphql.SchemaConfig{
Query: graphql.NewObject(graphql.ObjectConfig{
Name: "Query",
Fields: graphql.Fields{
"f": &graphql.Field{
Type: badObject,
},
},
}),
})
}
func init() {
globalIDTestUserType = graphql.NewObject(graphql.ObjectConfig{
Name: "User",
Fields: graphql.Fields{
"id": relay.GlobalIDField("User", nil),
"name": &graphql.Field{
Type: graphql.String,
},
},
Interfaces: []*graphql.Interface{globalIDTestDef.NodeInterface},
})
photoIDFetcher := func(obj interface{}, info graphql.ResolveInfo, ctx context.Context) (string, error) {
switch obj := obj.(type) {
case *photo2:
return fmt.Sprintf("%v", obj.PhotoId), nil
}
return "", errors.New("Not a photo")
}
globalIDTestPhotoType = graphql.NewObject(graphql.ObjectConfig{
Name: "Photo",
Fields: graphql.Fields{
"id": relay.GlobalIDField("Photo", photoIDFetcher),
"width": &graphql.Field{
Type: graphql.Int,
},
},
Interfaces: []*graphql.Interface{globalIDTestDef.NodeInterface},
})
globalIDTestSchema, _ = graphql.NewSchema(graphql.SchemaConfig{
Query: globalIDTestQueryType,
})
}
func TestMutation_ExecutionAddsErrorsFromFieldResolveFn(t *testing.T) {
mError := errors.New("mutationError")
q := graphql.NewObject(graphql.ObjectConfig{
Name: "Query",
Fields: graphql.Fields{
"a": &graphql.Field{
Type: graphql.String,
},
},
})
m := graphql.NewObject(graphql.ObjectConfig{
Name: "Mutation",
Fields: graphql.Fields{
"foo": &graphql.Field{
Type: graphql.String,
Args: graphql.FieldConfigArgument{
"f": &graphql.ArgumentConfig{
Type: graphql.String,
},
},
Resolve: func(p graphql.ResolveParams) (interface{}, error) {
return nil, mError
},
},
"bar": &graphql.Field{
Type: graphql.String,
Args: graphql.FieldConfigArgument{
"b": &graphql.ArgumentConfig{
Type: graphql.String,
},
},
Resolve: func(p graphql.ResolveParams) (interface{}, error) {
return "ok", nil
},
},
},
})
schema, err := graphql.NewSchema(graphql.SchemaConfig{
Query: q,
Mutation: m,
})
if err != nil {
t.Fatalf("unexpected error, got: %v", err)
}
query := "mutation _ { newFoo: foo(f:\"title\") }"
result := graphql.Do(graphql.Params{
Schema: schema,
RequestString: query,
})
if len(result.Errors) == 0 {
t.Fatal("wrong result, expected errors, got no errors")
}
if result.Errors[0].Error() != mError.Error() {
t.Fatalf("wrong result, unexpected error, got: %v, expected: %v", result.Errors[0], mError)
}
}
func TestTypeSystem_DefinitionExample_IncludesNestedInputObjectsInTheMap(t *testing.T) {
nestedInputObject := graphql.NewInputObject(graphql.InputObjectConfig{
Name: "NestedInputObject",
Fields: graphql.InputObjectConfigFieldMap{
"value": &graphql.InputObjectFieldConfig{
Type: graphql.String,
},
},
})
someInputObject := graphql.NewInputObject(graphql.InputObjectConfig{
Name: "SomeInputObject",
Fields: graphql.InputObjectConfigFieldMap{
"nested": &graphql.InputObjectFieldConfig{
Type: nestedInputObject,
},
},
})
someMutation := graphql.NewObject(graphql.ObjectConfig{
Name: "SomeMutation",
Fields: graphql.Fields{
"mutateSomething": &graphql.Field{
Type: blogArticle,
Args: graphql.FieldConfigArgument{
"input": &graphql.ArgumentConfig{
Type: someInputObject,
},
},
},
},
})
someSubscription := graphql.NewObject(graphql.ObjectConfig{
Name: "SomeSubscription",
Fields: graphql.Fields{
"subscribeToSomething": &graphql.Field{
Type: blogArticle,
Args: graphql.FieldConfigArgument{
"input": &graphql.ArgumentConfig{
Type: someInputObject,
},
},
},
},
})
schema, err := graphql.NewSchema(graphql.SchemaConfig{
Query: blogQuery,
Mutation: someMutation,
Subscription: someSubscription,
})
if err != nil {
t.Fatalf("unexpected error, got: %v", err)
}
if schema.Type("NestedInputObject") != nestedInputObject {
t.Fatalf(`schema.GetType("NestedInputObject") expected to equal nestedInputObject, got: %v`, schema.Type("NestedInputObject"))
}
}
func TestUsesTheSubscriptionSchemaForSubscriptions(t *testing.T) {
doc := `query Q { a } subscription S { a }`
data := map[string]interface{}{
"a": "b",
"c": "d",
}
expected := &graphql.Result{
Data: map[string]interface{}{
"a": "b",
},
}
schema, err := graphql.NewSchema(graphql.SchemaConfig{
Query: graphql.NewObject(graphql.ObjectConfig{
Name: "Q",
Fields: graphql.Fields{
"a": &graphql.Field{
Type: graphql.String,
},
},
}),
Subscription: graphql.NewObject(graphql.ObjectConfig{
Name: "S",
Fields: graphql.Fields{
"a": &graphql.Field{
Type: graphql.String,
},
},
}),
})
if err != nil {
t.Fatalf("Error in schema %v", err.Error())
}
// parse query
ast := testutil.TestParse(t, doc)
// execute
ep := graphql.ExecuteParams{
Schema: schema,
AST: ast,
Root: data,
OperationName: "S",
}
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 TestTypeSystem_SchemaMustContainUniquelyNamedTypes_RejectsASchemaWhichHaveSameNamedObjectsImplementingAnInterface(t *testing.T) {
anotherInterface := graphql.NewInterface(graphql.InterfaceConfig{
Name: "AnotherInterface",
ResolveType: func(p graphql.ResolveTypeParams) *graphql.Object {
return nil
},
Fields: graphql.Fields{
"f": &graphql.Field{
Type: graphql.String,
},
},
})
FirstBadObject := graphql.NewObject(graphql.ObjectConfig{
Name: "BadObject",
Interfaces: []*graphql.Interface{
anotherInterface,
},
Fields: graphql.Fields{
"f": &graphql.Field{
Type: graphql.String,
},
},
})
SecondBadObject := graphql.NewObject(graphql.ObjectConfig{
Name: "BadObject",
Interfaces: []*graphql.Interface{
anotherInterface,
},
Fields: graphql.Fields{
"f": &graphql.Field{
Type: graphql.String,
},
},
})
queryType := graphql.NewObject(graphql.ObjectConfig{
Name: "Query",
Fields: graphql.Fields{
"iface": &graphql.Field{
Type: anotherInterface,
},
},
})
_, err := graphql.NewSchema(graphql.SchemaConfig{
Query: queryType,
Types: []graphql.Type{FirstBadObject, SecondBadObject},
})
expectedError := `Schema must contain unique named types but contains multiple types named "BadObject".`
if err == nil || err.Error() != expectedError {
t.Fatalf("Expected error: %v, got %v", expectedError, err)
}
}
func TestDoesNotIncludeIllegalFieldsInOutput(t *testing.T) {
doc := `mutation M {
thisIsIllegalDontIncludeMe
}`
expected := &graphql.Result{
Data: map[string]interface{}{},
}
schema, err := graphql.NewSchema(graphql.SchemaConfig{
Query: graphql.NewObject(graphql.ObjectConfig{
Name: "Q",
Fields: graphql.Fields{
"a": &graphql.Field{
Type: graphql.String,
},
},
}),
Mutation: graphql.NewObject(graphql.ObjectConfig{
Name: "M",
Fields: graphql.Fields{
"c": &graphql.Field{
Type: graphql.String,
},
},
}),
})
if err != nil {
t.Fatalf("Error in schema %v", err.Error())
}
// parse query
ast := testutil.TestParse(t, doc)
// execute
ep := graphql.ExecuteParams{
Schema: schema,
AST: ast,
}
result := testutil.TestExecute(t, ep)
if len(result.Errors) != 0 {
t.Fatalf("wrong result, expected len(%v) errors, got len(%v)", len(expected.Errors), len(result.Errors))
}
if !reflect.DeepEqual(expected, result) {
t.Fatalf("Unexpected result, Diff: %v", testutil.Diff(expected, result))
}
}
func TestTypeSystem_ObjectsMustAdhereToInterfaceTheyImplement_AcceptsAnObjectWithSubsetNonNullInterfaceFieldType(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.NewNonNull(graphql.String),
},
},
})
_, err := schemaWithFieldType(anotherObject)
if err != nil {
t.Fatalf(`unexpected error: %v for type "%v"`, err, anotherObject)
}
}
func TestTypeSystem_ObjectsMustAdhereToInterfaceTheyImplement_RejectsAnObjectMissingAnInterfaceArgument(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,
Args: graphql.FieldConfigArgument{
"input": &graphql.ArgumentConfig{
Type: graphql.String,
},
},
},
},
})
anotherObject := graphql.NewObject(graphql.ObjectConfig{
Name: "AnotherObject",
Interfaces: []*graphql.Interface{anotherInterface},
Fields: graphql.Fields{
"field": &graphql.Field{
Type: graphql.String,
},
},
})
_, err := schemaWithObjectFieldOfType(anotherObject)
expectedError := `AnotherInterface.field expects argument "input" but AnotherObject.field does not provide it.`
if err == nil || err.Error() != expectedError {
t.Fatalf("Expected error: %v, got %v", expectedError, err)
}
}
func TestTypeSystem_SchemaMustContainUniquelyNamedTypes_RejectsASchemaWhichRedefinesABuiltInType(t *testing.T) {
fakeString := graphql.NewScalar(graphql.ScalarConfig{
Name: "String",
Serialize: func(value interface{}) interface{} {
return nil
},
})
queryType := graphql.NewObject(graphql.ObjectConfig{
Name: "Query",
Fields: graphql.Fields{
"normal": &graphql.Field{
Type: graphql.String,
},
"fake": &graphql.Field{
Type: fakeString,
},
},
})
_, err := graphql.NewSchema(graphql.SchemaConfig{
Query: queryType,
})
expectedError := `Schema must contain unique named types but contains multiple types named "String".`
if err == nil || err.Error() != expectedError {
t.Fatalf("Expected error: %v, got %v", expectedError, err)
}
}
func TestQuery_ExecutionDoesNotAddErrorsFromFieldResolveFn(t *testing.T) {
qError := errors.New("queryError")
q := graphql.NewObject(graphql.ObjectConfig{
Name: "Query",
Fields: graphql.Fields{
"a": &graphql.Field{
Type: graphql.String,
Resolve: func(p graphql.ResolveParams) (interface{}, error) {
return nil, qError
},
},
"b": &graphql.Field{
Type: graphql.String,
Resolve: func(p graphql.ResolveParams) (interface{}, error) {
return "ok", nil
},
},
},
})
blogSchema, err := graphql.NewSchema(graphql.SchemaConfig{
Query: q,
})
if err != nil {
t.Fatalf("unexpected error, got: %v", err)
}
query := "{ b }"
result := graphql.Do(graphql.Params{
Schema: blogSchema,
RequestString: query,
})
if len(result.Errors) != 0 {
t.Fatalf("wrong result, unexpected errors: %+v", result.Errors)
}
}
func main() {
// Schema
fields := graphql.Fields{
"hello": &graphql.Field{
Type: graphql.String,
Resolve: func(p graphql.ResolveParams) (interface{}, error) {
return "world", nil
},
},
}
rootQuery := graphql.ObjectConfig{Name: "RootQuery", Fields: fields}
schemaConfig := graphql.SchemaConfig{Query: graphql.NewObject(rootQuery)}
schema, err := graphql.NewSchema(schemaConfig)
if err != nil {
log.Fatalf("failed to create new schema, error: %v", err)
}
// Query
query := `
{
hello
}
`
params := graphql.Params{Schema: schema, RequestString: query}
r := graphql.Do(params)
if len(r.Errors) > 0 {
log.Fatalf("failed to execute graphql operation, errors: %+v", r.Errors)
}
rJSON, _ := json.Marshal(r)
fmt.Printf("%s \n", rJSON) // {“data”:{“hello”:”world”}}
}
func TestTypeSystem_InterfaceTypesMustBeResolvable_AcceptsAnInterfaceTypeDefiningResolveTypeWithImplementingTypeDefiningIsTypeOf(t *testing.T) {
anotherInterfaceType := graphql.NewInterface(graphql.InterfaceConfig{
Name: "AnotherInterface",
ResolveType: func(p graphql.ResolveTypeParams) *graphql.Object {
return nil
},
Fields: graphql.Fields{
"f": &graphql.Field{
Type: graphql.String,
},
},
})
_, err := schemaWithFieldType(graphql.NewObject(graphql.ObjectConfig{
Name: "SomeObject",
Interfaces: []*graphql.Interface{anotherInterfaceType},
IsTypeOf: func(p graphql.IsTypeOfParams) bool {
return true
},
Fields: graphql.Fields{
"f": &graphql.Field{
Type: graphql.String,
},
},
}))
if err != nil {
t.Fatalf("unexpected error: %v", err)
}
}
func TestDirectives_DirectivesMustBeNamed(t *testing.T) {
invalidDirective := graphql.NewDirective(graphql.DirectiveConfig{
Locations: []string{
graphql.DirectiveLocationField,
},
})
_, err := graphql.NewSchema(graphql.SchemaConfig{
Query: graphql.NewObject(graphql.ObjectConfig{
Name: "TestType",
Fields: graphql.Fields{
"a": &graphql.Field{
Type: graphql.String,
},
},
}),
Directives: []*graphql.Directive{invalidDirective},
})
expectedErr := gqlerrors.FormattedError{
Message: "Directive must be named.",
Locations: []location.SourceLocation{},
}
if !reflect.DeepEqual(expectedErr, err) {
t.Fatalf("Expected error to be equal, got: %v", testutil.Diff(expectedErr, err))
}
}
func TestTypeSystem_ObjectsMustAdhereToInterfaceTheyImplement_RejectsAnObjectWithASupersetNullableInterfaceFieldType(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.NewNonNull(graphql.String),
},
},
})
anotherObject := graphql.NewObject(graphql.ObjectConfig{
Name: "AnotherObject",
Interfaces: []*graphql.Interface{anotherInterface},
Fields: graphql.Fields{
"field": &graphql.Field{
Type: 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)
}
}
func TestDirectives_DirectiveNameMustBeValid(t *testing.T) {
invalidDirective := graphql.NewDirective(graphql.DirectiveConfig{
Name: "123invalid name",
Locations: []string{
graphql.DirectiveLocationField,
},
})
_, err := graphql.NewSchema(graphql.SchemaConfig{
Query: graphql.NewObject(graphql.ObjectConfig{
Name: "TestType",
Fields: graphql.Fields{
"a": &graphql.Field{
Type: graphql.String,
},
},
}),
Directives: []*graphql.Directive{invalidDirective},
})
expectedErr := gqlerrors.FormattedError{
Message: `Names must match /^[_a-zA-Z][_a-zA-Z0-9]*$/ but "123invalid name" does not.`,
Locations: []location.SourceLocation{},
}
if !reflect.DeepEqual(expectedErr, err) {
t.Fatalf("Expected error to be equal, got: %v", testutil.Diff(expectedErr, err))
}
}
func TestTypeSystem_ObjectsMustAdhereToInterfaceTheyImplement_AcceptsAnObjectWithASubtypedInterfaceField_Interface(t *testing.T) {
var anotherInterface *graphql.Interface
anotherInterface = graphql.NewInterface(graphql.InterfaceConfig{
Name: "AnotherInterface",
ResolveType: func(p graphql.ResolveTypeParams) *graphql.Object {
return nil
},
Fields: (graphql.FieldsThunk)(func() graphql.Fields {
return graphql.Fields{
"field": &graphql.Field{
Type: anotherInterface,
},
}
}),
})
var anotherObject *graphql.Object
anotherObject = graphql.NewObject(graphql.ObjectConfig{
Name: "AnotherObject",
Interfaces: []*graphql.Interface{anotherInterface},
Fields: (graphql.FieldsThunk)(func() graphql.Fields {
return graphql.Fields{
"field": &graphql.Field{
Type: anotherObject,
},
}
}),
})
_, err := schemaWithFieldType(anotherObject)
if err != nil {
t.Fatalf(`unexpected error: %v for type "%v"`, err, anotherObject)
}
}
func TestTypeSystem_ObjectInterfacesMustBeArray_AcceptsAnObjectTypeWithInterfacesAsFunctionReturningAnArray(t *testing.T) {
anotherInterfaceType := graphql.NewInterface(graphql.InterfaceConfig{
Name: "AnotherInterface",
ResolveType: func(p graphql.ResolveTypeParams) *graphql.Object {
return nil
},
Fields: graphql.Fields{
"f": &graphql.Field{
Type: graphql.String,
},
},
})
_, err := schemaWithFieldType(graphql.NewObject(graphql.ObjectConfig{
Name: "SomeObject",
Interfaces: []*graphql.Interface{anotherInterfaceType},
Fields: graphql.Fields{
"f": &graphql.Field{
Type: graphql.String,
},
},
}))
if err != nil {
t.Fatalf("unexpected error: %v", err)
}
}
func TestIntrospection_IdentifiesDeprecatedFields(t *testing.T) {
testType := graphql.NewObject(graphql.ObjectConfig{
Name: "TestType",
Fields: graphql.Fields{
"nonDeprecated": &graphql.Field{
Type: graphql.String,
},
"deprecated": &graphql.Field{
Type: graphql.String,
DeprecationReason: "Removed in 1.0",
},
},
})
schema, err := graphql.NewSchema(graphql.SchemaConfig{
Query: testType,
})
if err != nil {
t.Fatalf("Error creating Schema: %v", err.Error())
}
query := `
{
__type(name: "TestType") {
name
fields(includeDeprecated: true) {
name
isDeprecated,
deprecationReason
}
}
}
`
expected := &graphql.Result{
Data: map[string]interface{}{
"__type": map[string]interface{}{
"name": "TestType",
"fields": []interface{}{
map[string]interface{}{
"name": "nonDeprecated",
"isDeprecated": false,
"deprecationReason": nil,
},
map[string]interface{}{
"name": "deprecated",
"isDeprecated": true,
"deprecationReason": "Removed in 1.0",
},
},
},
},
}
result := g(t, graphql.Params{
Schema: schema,
RequestString: query,
})
if !testutil.ContainSubset(result.Data.(map[string]interface{}), expected.Data.(map[string]interface{})) {
t.Fatalf("Unexpected result, Diff: %v", testutil.Diff(expected, result))
}
}
func TestCorrectlyThreadsArguments(t *testing.T) {
query := `
query Example {
b(numArg: 123, stringArg: "foo")
}
`
var resolvedArgs map[string]interface{}
schema, err := graphql.NewSchema(graphql.SchemaConfig{
Query: graphql.NewObject(graphql.ObjectConfig{
Name: "Type",
Fields: graphql.Fields{
"b": &graphql.Field{
Args: graphql.FieldConfigArgument{
"numArg": &graphql.ArgumentConfig{
Type: graphql.Int,
},
"stringArg": &graphql.ArgumentConfig{
Type: graphql.String,
},
},
Type: graphql.String,
Resolve: func(p graphql.ResolveParams) (interface{}, error) {
resolvedArgs = p.Args
return resolvedArgs, 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,
}
result := testutil.TestExecute(t, ep)
if len(result.Errors) > 0 {
t.Fatalf("wrong result, unexpected errors: %v", result.Errors)
}
expectedNum := 123
expectedString := "foo"
if resolvedArgs["numArg"] != expectedNum {
t.Fatalf("Expected args.numArg to equal `%v`, got `%v`", expectedNum, resolvedArgs["numArg"])
}
if resolvedArgs["stringArg"] != expectedString {
t.Fatalf("Expected args.stringArg to equal `%v`, got `%v`", expectedNum, resolvedArgs["stringArg"])
}
}
func TestTypeSystem_ObjectsMustAdhereToInterfaceTheyImplement_RejectsAnObjectWithADifferentlyTypeInterfaceField(t *testing.T) {
typeA := graphql.NewObject(graphql.ObjectConfig{
Name: "A",
Fields: graphql.Fields{
"foo": &graphql.Field{
Type: graphql.String,
},
},
})
typeB := graphql.NewObject(graphql.ObjectConfig{
Name: "B",
Fields: graphql.Fields{
"foo": &graphql.Field{
Type: graphql.String,
},
},
})
anotherInterface := graphql.NewInterface(graphql.InterfaceConfig{
Name: "AnotherInterface",
ResolveType: func(p graphql.ResolveTypeParams) *graphql.Object {
return nil
},
Fields: graphql.Fields{
"field": &graphql.Field{
Type: typeA,
},
},
})
anotherObject := graphql.NewObject(graphql.ObjectConfig{
Name: "AnotherObject",
Interfaces: []*graphql.Interface{anotherInterface},
Fields: graphql.Fields{
"field": &graphql.Field{
Type: typeB,
},
},
})
_, err := schemaWithObjectFieldOfType(anotherObject)
expectedError := `AnotherInterface.field expects type "A" but AnotherObject.field provides type "B".`
if err == nil || err.Error() != expectedError {
t.Fatalf("Expected error: %v, got %v", expectedError, err)
}
}
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,
}
}
func TestTypeSystem_ObjectsMustHaveFields_RejectsAnObjectTypeWithMissingFields(t *testing.T) {
badObject := graphql.NewObject(graphql.ObjectConfig{
Name: "SomeObject",
})
_, err := schemaWithFieldType(badObject)
expectedError := `SomeObject fields must be an object with field names as keys or a function which return such an object.`
if err == nil || err.Error() != expectedError {
t.Fatalf("Expected error: %v, got %v", expectedError, err)
}
}
func TestTypeSystem_DefinitionExample_IncludesInterfacesThunkSubtypesInTheTypeMap(t *testing.T) {
someInterface := graphql.NewInterface(graphql.InterfaceConfig{
Name: "SomeInterface",
Fields: graphql.Fields{
"f": &graphql.Field{
Type: graphql.Int,
},
},
})
someSubType := graphql.NewObject(graphql.ObjectConfig{
Name: "SomeSubtype",
Fields: graphql.Fields{
"f": &graphql.Field{
Type: graphql.Int,
},
},
Interfaces: (graphql.InterfacesThunk)(func() []*graphql.Interface {
return []*graphql.Interface{someInterface}
}),
IsTypeOf: func(p graphql.IsTypeOfParams) bool {
return true
},
})
schema, err := graphql.NewSchema(graphql.SchemaConfig{
Query: graphql.NewObject(graphql.ObjectConfig{
Name: "Query",
Fields: graphql.Fields{
"iface": &graphql.Field{
Type: someInterface,
},
},
}),
Types: []graphql.Type{someSubType},
})
if err != nil {
t.Fatalf("unexpected error, got: %v", err)
}
if schema.Type("SomeSubtype") != someSubType {
t.Fatalf(`schema.GetType("SomeSubtype") expected to equal someSubType, got: %v`, schema.Type("SomeSubtype"))
}
}
func MutationWithClientMutationID(config MutationConfig) *graphql.Field {
augmentedInputFields := config.InputFields
if augmentedInputFields == nil {
augmentedInputFields = graphql.InputObjectConfigFieldMap{}
}
augmentedInputFields["clientMutationId"] = &graphql.InputObjectFieldConfig{
Type: graphql.NewNonNull(graphql.String),
}
augmentedOutputFields := config.OutputFields
if augmentedOutputFields == nil {
augmentedOutputFields = graphql.Fields{}
}
augmentedOutputFields["clientMutationId"] = &graphql.Field{
Type: graphql.NewNonNull(graphql.String),
}
inputType := graphql.NewInputObject(graphql.InputObjectConfig{
Name: config.Name + "Input",
Fields: augmentedInputFields,
})
outputType := graphql.NewObject(graphql.ObjectConfig{
Name: config.Name + "Payload",
Fields: augmentedOutputFields,
})
return &graphql.Field{
Name: config.Name,
Type: outputType,
Args: graphql.FieldConfigArgument{
"input": &graphql.ArgumentConfig{
Type: graphql.NewNonNull(inputType),
},
},
Resolve: func(p graphql.ResolveParams) (interface{}, error) {
if config.MutateAndGetPayload == nil {
return nil, nil
}
input := map[string]interface{}{}
if inputVal, ok := p.Args["input"]; ok {
if inputVal, ok := inputVal.(map[string]interface{}); ok {
input = inputVal
}
}
payload, err := config.MutateAndGetPayload(input, p.Info, p.Context)
if err != nil {
return nil, err
}
if clientMutationID, ok := input["clientMutationId"]; ok {
payload["clientMutationId"] = clientMutationID
}
return payload, nil
},
}
}
func schemaWithObjectFieldOfType(fieldType graphql.Input) (graphql.Schema, error) {
badObjectType := graphql.NewObject(graphql.ObjectConfig{
Name: "BadObject",
Fields: graphql.Fields{
"badField": &graphql.Field{
Type: fieldType,
},
},
})
return graphql.NewSchema(graphql.SchemaConfig{
Query: graphql.NewObject(graphql.ObjectConfig{
Name: "Query",
Fields: graphql.Fields{
"f": &graphql.Field{
Type: badObjectType,
},
},
}),
})
}
func schemaWithFieldType(ttype graphql.Output) (graphql.Schema, error) {
return graphql.NewSchema(graphql.SchemaConfig{
Query: graphql.NewObject(graphql.ObjectConfig{
Name: "Query",
Fields: graphql.Fields{
"f": &graphql.Field{
Type: ttype,
},
},
}),
Types: []graphql.Type{ttype},
})
}
func TestTypeSystem_ObjectsMustHaveFields_AcceptsAnObjectTypeWithFieldsObject(t *testing.T) {
_, err := schemaWithFieldType(graphql.NewObject(graphql.ObjectConfig{
Name: "SomeObject",
Fields: graphql.Fields{
"f": &graphql.Field{
Type: graphql.String,
},
},
}))
if err != nil {
t.Fatalf("unexpected error: %v", err)
}
}
func schemaWithObjectImplementingType(implementedType *graphql.Interface) (graphql.Schema, error) {
badObjectType := graphql.NewObject(graphql.ObjectConfig{
Name: "BadObject",
Interfaces: []*graphql.Interface{implementedType},
Fields: graphql.Fields{
"f": &graphql.Field{
Type: graphql.String,
},
},
})
return graphql.NewSchema(graphql.SchemaConfig{
Query: graphql.NewObject(graphql.ObjectConfig{
Name: "Query",
Fields: graphql.Fields{
"f": &graphql.Field{
Type: badObjectType,
},
},
}),
Types: []graphql.Type{badObjectType},
})
}