Golang graphql.NewSchema函數代碼示例

func TestTypeSystem_DefinitionExample_DefinesAMutationScheme(t *testing.T) {
	blogSchema, err := graphql.NewSchema(graphql.SchemaConfig{
		Query:    blogQuery,
		Mutation: blogMutation,
	})
	if err != nil {
		t.Fatalf("unexpected error, got: %v", err)
	}

	if blogSchema.GetMutationType() != blogMutation {
		t.Fatalf("expected blogSchema.GetMutationType() == blogMutation")
	}

	writeMutation, _ := blogMutation.GetFields()["writeArticle"]
	if writeMutation == nil {
		t.Fatalf("writeMutation is nil")
	}
	writeMutationType := writeMutation.Type
	if writeMutationType != blogArticle {
		t.Fatalf("writeMutationType expected to equal blogArticle, got: %v", writeMutationType)
	}
	if writeMutationType.GetName() != "Article" {
		t.Fatalf("writeMutationType.Name expected to equal `Article`, got: %v", writeMutationType.GetName())
	}
	if writeMutation.Name != "writeArticle" {
		t.Fatalf("writeMutation.Name expected to equal `writeArticle`, got: %v", writeMutation.Name)
	}
}

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.FieldConfigMap{
			"normal": &graphql.FieldConfig{
				Type: graphql.String,
			},
			"fake": &graphql.FieldConfig{
				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 TestTypeSystem_SchemaMustHaveObjectRootTypes_RejectsASchemaWithoutAQueryType(t *testing.T) {
	_, err := graphql.NewSchema(graphql.SchemaConfig{})
	expectedError := "Schema query must be Object Type but got: nil."
	if err == nil || err.Error() != expectedError {
		t.Fatalf("Expected error: %v, got %v", expectedError, err)
	}
}

func schemaWithInputFieldOfType(ttype graphql.Type) (graphql.Schema, error) {

	badInputObject := graphql.NewInputObject(graphql.InputObjectConfig{
		Name: "BadInputObject",
		Fields: graphql.InputObjectConfigFieldMap{
			"badField": &graphql.InputObjectFieldConfig{
				Type: ttype,
			},
		},
	})
	return graphql.NewSchema(graphql.SchemaConfig{
		Query: graphql.NewObject(graphql.ObjectConfig{
			Name: "Query",
			Fields: graphql.FieldConfigMap{
				"f": &graphql.FieldConfig{
					Type: graphql.String,
					Args: graphql.FieldConfigArgument{
						"badArg": &graphql.ArgumentConfig{
							Type: badInputObject,
						},
					},
				},
			},
		}),
	})
}

func TestIntrospection_IdentifiesDeprecatedFields(t *testing.T) {

	testType := graphql.NewObject(graphql.ObjectConfig{
		Name: "TestType",
		Fields: graphql.FieldConfigMap{
			"nonDeprecated": &graphql.FieldConfig{
				Type: graphql.String,
			},
			"deprecated": &graphql.FieldConfig{
				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 TestTypeSystem_SchemaMustHaveObjectRootTypes_AcceptsASchemaWhoseQueryTypeIsAnObjectType(t *testing.T) {
	_, err := graphql.NewSchema(graphql.SchemaConfig{
		Query: someObjectType,
	})
	if err != nil {
		t.Fatalf("unexpected error: %v", err)
	}
}

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.FieldConfigMap{
				"b": &graphql.FieldConfig{
					Args: graphql.FieldConfigArgument{
						"numArg": &graphql.ArgumentConfig{
							Type: graphql.Int,
						},
						"stringArg": &graphql.ArgumentConfig{
							Type: graphql.String,
						},
					},
					Type: graphql.String,
					Resolve: func(p graphql.GQLFRParams) interface{} {
						resolvedArgs = p.Args
						return resolvedArgs
					},
				},
			},
		}),
	})
	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 TestAvoidsRecursion(t *testing.T) {

	doc := `
      query Q {
        a
        ...Frag
        ...Frag
      }

      fragment Frag on Type {
        a,
        ...Frag
      }
    `
	data := map[string]interface{}{
		"a": "b",
	}

	expected := &graphql.Result{
		Data: map[string]interface{}{
			"a": "b",
		},
	}

	schema, err := graphql.NewSchema(graphql.SchemaConfig{
		Query: graphql.NewObject(graphql.ObjectConfig{
			Name: "Type",
			Fields: graphql.FieldConfigMap{
				"a": &graphql.FieldConfig{
					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: "Q",
	}
	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 schemaWithFieldType(ttype graphql.Output) (graphql.Schema, error) {
	return graphql.NewSchema(graphql.SchemaConfig{
		Query: graphql.NewObject(graphql.ObjectConfig{
			Name: "Query",
			Fields: graphql.FieldConfigMap{
				"f": &graphql.FieldConfig{
					Type: ttype,
				},
			},
		}),
	})
}

func TestTypeSystem_SchemaMustContainUniquelyNamedTypes_RejectsASchemaWhichHaveSameNamedObjectsImplementingAnInterface(t *testing.T) {

	anotherInterface := graphql.NewInterface(graphql.InterfaceConfig{
		Name: "AnotherInterface",
		ResolveType: func(value interface{}, info graphql.ResolveInfo) *graphql.Object {
			return nil
		},
		Fields: graphql.FieldConfigMap{
			"f": &graphql.FieldConfig{
				Type: graphql.String,
			},
		},
	})
	_ = graphql.NewObject(graphql.ObjectConfig{
		Name: "BadObject",
		Interfaces: []*graphql.Interface{
			anotherInterface,
		},
		Fields: graphql.FieldConfigMap{
			"f": &graphql.FieldConfig{
				Type: graphql.String,
			},
		},
	})
	_ = graphql.NewObject(graphql.ObjectConfig{
		Name: "BadObject",
		Interfaces: []*graphql.Interface{
			anotherInterface,
		},
		Fields: graphql.FieldConfigMap{
			"f": &graphql.FieldConfig{
				Type: graphql.String,
			},
		},
	})
	queryType := graphql.NewObject(graphql.ObjectConfig{
		Name: "Query",
		Fields: graphql.FieldConfigMap{
			"iface": &graphql.FieldConfig{
				Type: anotherInterface,
			},
		},
	})
	_, err := graphql.NewSchema(graphql.SchemaConfig{
		Query: queryType,
	})
	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 TestThreadsContextCorrectly(t *testing.T) {

	query := `
      query Example { a }
    `

	data := map[string]interface{}{
		"contextThing": "thing",
	}

	var resolvedContext map[string]interface{}

	schema, err := graphql.NewSchema(graphql.SchemaConfig{
		Query: graphql.NewObject(graphql.ObjectConfig{
			Name: "Type",
			Fields: graphql.FieldConfigMap{
				"a": &graphql.FieldConfig{
					Type: graphql.String,
					Resolve: func(p graphql.GQLFRParams) interface{} {
						resolvedContext = p.Source.(map[string]interface{})
						return resolvedContext
					},
				},
			},
		}),
	})
	if err != nil {
		t.Fatalf("Error in schema %v", err.Error())
	}

	// parse query
	ast := testutil.TestParse(t, query)

	// execute
	ep := graphql.ExecuteParams{
		Schema: schema,
		Root:   data,
		AST:    ast,
	}
	result := testutil.TestExecute(t, ep)
	if len(result.Errors) > 0 {
		t.Fatalf("wrong result, unexpected errors: %v", result.Errors)
	}

	expected := "thing"
	if resolvedContext["contextThing"] != expected {
		t.Fatalf("Expected context.contextThing to equal %v, got %v", expected, resolvedContext["contextThing"])
	}
}

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.FieldConfigMap{
				"a": &graphql.FieldConfig{
					Type: graphql.String,
				},
			},
		}),
		Mutation: graphql.NewObject(graphql.ObjectConfig{
			Name: "M",
			Fields: graphql.FieldConfigMap{
				"c": &graphql.FieldConfig{
					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 TestThrowsIfNoOperationIsProvidedWithMultipleOperations(t *testing.T) {

	doc := `query Example { a } query OtherExample { a }`
	data := map[string]interface{}{
		"a": "b",
	}

	expectedErrors := []gqlerrors.FormattedError{
		gqlerrors.FormattedError{
			Message:   "Must provide operation name if query contains multiple operations.",
			Locations: []location.SourceLocation{},
		},
	}

	schema, err := graphql.NewSchema(graphql.SchemaConfig{
		Query: graphql.NewObject(graphql.ObjectConfig{
			Name: "Type",
			Fields: graphql.FieldConfigMap{
				"a": &graphql.FieldConfig{
					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,
	}
	result := testutil.TestExecute(t, ep)
	if len(result.Errors) != 1 {
		t.Fatalf("wrong result, expected len(1) unexpected len: %v", len(result.Errors))
	}
	if result.Data != nil {
		t.Fatalf("wrong result, expected nil result.Data, got %v", result.Data)
	}
	if !reflect.DeepEqual(expectedErrors, result.Errors) {
		t.Fatalf("unexpected result, Diff: %v", testutil.Diff(expectedErrors, result.Errors))
	}
}

func TestFailsToExecuteQueryContainingATypeDefinition(t *testing.T) {

	query := `
      { foo }

      type Query { foo: String }
	`
	expected := &graphql.Result{
		Data: nil,
		Errors: []gqlerrors.FormattedError{
			gqlerrors.FormattedError{
				Message:   "GraphQL cannot execute a request containing a ObjectDefinition",
				Locations: []location.SourceLocation{},
			},
		},
	}

	schema, err := graphql.NewSchema(graphql.SchemaConfig{
		Query: graphql.NewObject(graphql.ObjectConfig{
			Name: "Query",
			Fields: graphql.FieldConfigMap{
				"foo": &graphql.FieldConfig{
					Type: graphql.String,
				},
			},
		}),
	})
	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) != 1 {
		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 schemaWithInputObject(ttype graphql.Input) (graphql.Schema, error) {
	return graphql.NewSchema(graphql.SchemaConfig{
		Query: graphql.NewObject(graphql.ObjectConfig{
			Name: "Query",
			Fields: graphql.FieldConfigMap{
				"f": &graphql.FieldConfig{
					Type: graphql.String,
					Args: graphql.FieldConfigArgument{
						"args": &graphql.ArgumentConfig{
							Type: ttype,
						},
					},
				},
			},
		}),
	})
}