func TestPrinter_PrintsMinimalAST(t *testing.T) {
astDoc := ast.NewField(&ast.Field{
Name: ast.NewName(&ast.Name{
Value: "foo",
}),
})
results := printer.Print(astDoc)
expected := "foo"
if !reflect.DeepEqual(results, expected) {
t.Fatalf("Unexpected result, Diff: %v", testutil.Diff(expected, results))
}
}
func TestSchemaPrinter_PrintsMinimalAST(t *testing.T) {
astDoc := ast.NewScalarTypeDefinition(&ast.ScalarTypeDefinition{
Name: ast.NewName(&ast.Name{
Value: "foo",
}),
})
results := printer.Print(astDoc)
expected := "scalar foo"
if !reflect.DeepEqual(results, expected) {
t.Fatalf("Unexpected result, Diff: %v", testutil.Diff(expected, results))
}
}
func TestPrinter_PrintsKitchenSink(t *testing.T) {
b, err := ioutil.ReadFile("./../parser/kitchen-sink.graphql")
if err != nil {
t.Fatalf("unable to load kitchen-sink.graphql")
}
query := string(b)
astDoc := parse(t, query)
expected := `query namedQuery($foo: ComplexFooType, $bar: Bar = DefaultBarValue) {
customUser: user(id: [987, 654]) {
id
... on User @defer {
field2 {
id
alias: field1(first: 10, after: $foo) @include(if: $foo) {
id
...frag
}
}
}
}
}
mutation favPost {
fav(post: 123) @defer {
post {
id
}
}
}
fragment frag on Follower {
foo(size: $size, bar: $b, obj: {key: "value"})
}
{
unnamed(truthyVal: true, falseyVal: false)
query
}
`
results := printer.Print(astDoc)
if !reflect.DeepEqual(expected, results) {
t.Fatalf("Unexpected result, Diff: %v", testutil.Diff(results, expected))
}
}
func TestSchemaPrinter_PrintsKitchenSink(t *testing.T) {
b, err := ioutil.ReadFile("./../parser/schema-kitchen-sink.graphql")
if err != nil {
t.Fatalf("unable to load schema-kitchen-sink.graphql")
}
query := string(b)
astDoc := parse(t, query)
expected := `type Foo implements Bar {
one: Type
two(argument: InputType!): Type
three(argument: InputType, other: String): Int
four(argument: String = "string"): String
five(argument: [String] = ["string", "string"]): String
six(argument: InputType = {key: "value"}): Type
}
interface Bar {
one: Type
four(argument: String = "string"): String
}
union Feed = Story | Article | Advert
scalar CustomScalar
enum Site {
DESKTOP
MOBILE
}
input InputType {
key: String!
answer: Int = 42
}
extend type Foo {
seven(argument: [String]): Type
}
`
results := printer.Print(astDoc)
if !reflect.DeepEqual(expected, results) {
t.Fatalf("Unexpected result, Diff: %v", testutil.Diff(results, expected))
}
}
func TestPrinter_DoesNotAlterAST(t *testing.T) {
b, err := ioutil.ReadFile("./../parser/kitchen-sink.graphql")
if err != nil {
t.Fatalf("unable to load kitchen-sink.graphql")
}
query := string(b)
astDoc := parse(t, query)
astDocBefore := testutil.ASTToJSON(t, astDoc)
_ = printer.Print(astDoc)
astDocAfter := testutil.ASTToJSON(t, astDoc)
_ = testutil.ASTToJSON(t, astDoc)
if !reflect.DeepEqual(astDocAfter, astDocBefore) {
t.Fatalf("Unexpected result, Diff: %v", testutil.Diff(astDocAfter, astDocBefore))
}
}
func init() {
__TypeKind = NewGraphQLEnumType(GraphQLEnumTypeConfig{
Name: "__TypeKind",
Description: "An enum describing what kind of type a given __Type is",
Values: GraphQLEnumValueConfigMap{
"SCALAR": &GraphQLEnumValueConfig{
Value: TypeKindScalar,
Description: "Indicates this type is a scalar.",
},
"OBJECT": &GraphQLEnumValueConfig{
Value: TypeKindObject,
Description: "Indicates this type is an object. " +
"`fields` and `interfaces` are valid fields.",
},
"INTERFACE": &GraphQLEnumValueConfig{
Value: TypeKindInterface,
Description: "Indicates this type is an interface. " +
"`fields` and `possibleTypes` are valid fields.",
},
"UNION": &GraphQLEnumValueConfig{
Value: TypeKindUnion,
Description: "Indicates this type is a union. " +
"`possibleTypes` is a valid field.",
},
"ENUM": &GraphQLEnumValueConfig{
Value: TypeKindEnum,
Description: "Indicates this type is an enum. " +
"`enumValues` is a valid field.",
},
"INPUT_OBJECT": &GraphQLEnumValueConfig{
Value: TypeKindInputObject,
Description: "Indicates this type is an input object. " +
"`inputFields` is a valid field.",
},
"LIST": &GraphQLEnumValueConfig{
Value: TypeKindList,
Description: "Indicates this type is a list. " +
"`ofType` is a valid field.",
},
"NON_NULL": &GraphQLEnumValueConfig{
Value: TypeKindNonNull,
Description: "Indicates this type is a non-null. " +
"`ofType` is a valid field.",
},
},
})
// Note: some fields (for e.g "fields", "interfaces") are defined later due to cyclic reference
__Type = NewGraphQLObjectType(GraphQLObjectTypeConfig{
Name: "__Type",
Fields: GraphQLFieldConfigMap{
"kind": &GraphQLFieldConfig{
Type: NewGraphQLNonNull(__TypeKind),
Resolve: func(p GQLFRParams) interface{} {
switch p.Source.(type) {
case *GraphQLScalarType:
return TypeKindScalar
case *GraphQLObjectType:
return TypeKindObject
case *GraphQLInterfaceType:
return TypeKindInterface
case *GraphQLUnionType:
return TypeKindUnion
case *GraphQLEnumType:
return TypeKindEnum
case *GraphQLInputObjectType:
return TypeKindInputObject
case *GraphQLList:
return TypeKindList
case *GraphQLNonNull:
return TypeKindNonNull
}
panic(fmt.Sprintf("Unknown kind of type: %v", p.Source))
},
},
"name": &GraphQLFieldConfig{
Type: GraphQLString,
},
"description": &GraphQLFieldConfig{
Type: GraphQLString,
},
"fields": &GraphQLFieldConfig{},
"interfaces": &GraphQLFieldConfig{},
"possibleTypes": &GraphQLFieldConfig{},
"enumValues": &GraphQLFieldConfig{},
"inputFields": &GraphQLFieldConfig{},
"ofType": &GraphQLFieldConfig{},
},
})
__InputValue = NewGraphQLObjectType(GraphQLObjectTypeConfig{
Name: "__InputValue",
Fields: GraphQLFieldConfigMap{
"name": &GraphQLFieldConfig{
Type: NewGraphQLNonNull(GraphQLString),
},
"description": &GraphQLFieldConfig{
Type: GraphQLString,
},
"type": &GraphQLFieldConfig{
Type: NewGraphQLNonNull(__Type),
},
"defaultValue": &GraphQLFieldConfig{
Type: GraphQLString,
Resolve: func(p GQLFRParams) interface{} {
if inputVal, ok := p.Source.(*GraphQLArgument); ok {
if inputVal.DefaultValue == nil {
return nil
}
astVal := astFromValue(inputVal.DefaultValue, inputVal)
return printer.Print(astVal)
}
if inputVal, ok := p.Source.(*InputObjectField); ok {
if inputVal.DefaultValue == nil {
return nil
}
astVal := astFromValue(inputVal.DefaultValue, inputVal)
return printer.Print(astVal)
}
return nil
},
},
},
})
__Field = NewGraphQLObjectType(GraphQLObjectTypeConfig{
Name: "__Field",
Fields: GraphQLFieldConfigMap{
"name": &GraphQLFieldConfig{
Type: NewGraphQLNonNull(GraphQLString),
},
"description": &GraphQLFieldConfig{
Type: GraphQLString,
},
"args": &GraphQLFieldConfig{
Type: NewGraphQLNonNull(NewGraphQLList(NewGraphQLNonNull(__InputValue))),
Resolve: func(p GQLFRParams) interface{} {
if field, ok := p.Source.(*GraphQLFieldDefinition); ok {
return field.Args
}
return []interface{}{}
},
},
"type": &GraphQLFieldConfig{
Type: NewGraphQLNonNull(__Type),
},
"isDeprecated": &GraphQLFieldConfig{
Type: NewGraphQLNonNull(GraphQLBoolean),
Resolve: func(p GQLFRParams) interface{} {
if field, ok := p.Source.(*GraphQLFieldDefinition); ok {
return (field.DeprecationReason != "")
}
return false
},
},
"deprecationReason": &GraphQLFieldConfig{
Type: GraphQLString,
},
},
})
__Directive = NewGraphQLObjectType(GraphQLObjectTypeConfig{
Name: "__Directive",
Fields: GraphQLFieldConfigMap{
"name": &GraphQLFieldConfig{
Type: NewGraphQLNonNull(GraphQLString),
},
"description": &GraphQLFieldConfig{
Type: GraphQLString,
},
"args": &GraphQLFieldConfig{
Type: NewGraphQLNonNull(NewGraphQLList(
NewGraphQLNonNull(__InputValue),
)),
},
"onOperation": &GraphQLFieldConfig{
Type: NewGraphQLNonNull(GraphQLBoolean),
},
"onFragment": &GraphQLFieldConfig{
Type: NewGraphQLNonNull(GraphQLBoolean),
},
"onField": &GraphQLFieldConfig{
Type: NewGraphQLNonNull(GraphQLBoolean),
},
},
})
__Schema = NewGraphQLObjectType(GraphQLObjectTypeConfig{
Name: "__Schema",
Description: `A GraphQL Schema defines the capabilities of a GraphQL
server. It exposes all available types and directives on
the server, as well as the entry points for query and
mutation operations.`,
Fields: GraphQLFieldConfigMap{
"types": &GraphQLFieldConfig{
Description: "A list of all types supported by this server.",
Type: NewGraphQLNonNull(NewGraphQLList(
NewGraphQLNonNull(__Type),
)),
Resolve: func(p GQLFRParams) interface{} {
if schema, ok := p.Source.(GraphQLSchema); ok {
results := []GraphQLType{}
for _, ttype := range schema.GetTypeMap() {
results = append(results, ttype)
}
return results
}
return []GraphQLType{}
},
},
"queryType": &GraphQLFieldConfig{
Description: "The type that query operations will be rooted at.",
Type: NewGraphQLNonNull(__Type),
Resolve: func(p GQLFRParams) interface{} {
if schema, ok := p.Source.(GraphQLSchema); ok {
return schema.GetQueryType()
}
return nil
},
},
"mutationType": &GraphQLFieldConfig{
Description: `If this server supports mutation, the type that ` +
`mutation operations will be rooted at.`,
Type: __Type,
Resolve: func(p GQLFRParams) interface{} {
if schema, ok := p.Source.(GraphQLSchema); ok {
if schema.GetMutationType() != nil {
return schema.GetMutationType()
}
}
return nil
},
},
"directives": &GraphQLFieldConfig{
Description: `A list of all directives supported by this server.`,
Type: NewGraphQLNonNull(NewGraphQLList(
NewGraphQLNonNull(__Directive),
)),
Resolve: func(p GQLFRParams) interface{} {
if schema, ok := p.Source.(GraphQLSchema); ok {
return schema.GetDirectives()
}
return nil
},
},
},
})
__EnumValue = NewGraphQLObjectType(GraphQLObjectTypeConfig{
Name: "__EnumValue",
Fields: GraphQLFieldConfigMap{
"name": &GraphQLFieldConfig{
Type: NewGraphQLNonNull(GraphQLString),
},
"description": &GraphQLFieldConfig{
Type: GraphQLString,
},
"isDeprecated": &GraphQLFieldConfig{
Type: NewGraphQLNonNull(GraphQLBoolean),
Resolve: func(p GQLFRParams) interface{} {
if field, ok := p.Source.(*GraphQLEnumValueDefinition); ok {
return (field.DeprecationReason != "")
}
return false
},
},
"deprecationReason": &GraphQLFieldConfig{
Type: GraphQLString,
},
},
})
// Again, adding field configs to __Type that have cyclic reference here
// because golang don't like them too much during init/compile-time
__Type.AddFieldConfig("fields", &GraphQLFieldConfig{
Type: NewGraphQLList(NewGraphQLNonNull(__Field)),
Args: GraphQLFieldConfigArgumentMap{
"includeDeprecated": &GraphQLArgumentConfig{
Type: GraphQLBoolean,
DefaultValue: false,
},
},
Resolve: func(p GQLFRParams) interface{} {
includeDeprecated, _ := p.Args["includeDeprecated"].(bool)
switch ttype := p.Source.(type) {
case *GraphQLObjectType:
if ttype == nil {
return nil
}
fields := []*GraphQLFieldDefinition{}
for _, field := range ttype.GetFields() {
if !includeDeprecated && field.DeprecationReason != "" {
continue
}
fields = append(fields, field)
}
return fields
case *GraphQLInterfaceType:
if ttype == nil {
return nil
}
fields := []*GraphQLFieldDefinition{}
for _, field := range ttype.GetFields() {
if !includeDeprecated && field.DeprecationReason != "" {
continue
}
fields = append(fields, field)
}
return fields
}
return nil
},
})
__Type.AddFieldConfig("interfaces", &GraphQLFieldConfig{
Type: NewGraphQLList(NewGraphQLNonNull(__Type)),
Resolve: func(p GQLFRParams) interface{} {
switch ttype := p.Source.(type) {
case *GraphQLObjectType:
return ttype.GetInterfaces()
}
return nil
},
})
__Type.AddFieldConfig("possibleTypes", &GraphQLFieldConfig{
Type: NewGraphQLList(NewGraphQLNonNull(__Type)),
Resolve: func(p GQLFRParams) interface{} {
switch ttype := p.Source.(type) {
case *GraphQLInterfaceType:
return ttype.GetPossibleTypes()
case *GraphQLUnionType:
return ttype.GetPossibleTypes()
}
return nil
},
})
__Type.AddFieldConfig("enumValues", &GraphQLFieldConfig{
Type: NewGraphQLList(NewGraphQLNonNull(__EnumValue)),
Args: GraphQLFieldConfigArgumentMap{
"includeDeprecated": &GraphQLArgumentConfig{
Type: GraphQLBoolean,
DefaultValue: false,
},
},
Resolve: func(p GQLFRParams) interface{} {
includeDeprecated, _ := p.Args["includeDeprecated"].(bool)
switch ttype := p.Source.(type) {
case *GraphQLEnumType:
if includeDeprecated {
return ttype.GetValues()
}
values := []*GraphQLEnumValueDefinition{}
for _, value := range ttype.GetValues() {
if value.DeprecationReason != "" {
continue
}
values = append(values, value)
}
return values
}
return nil
},
})
__Type.AddFieldConfig("inputFields", &GraphQLFieldConfig{
Type: NewGraphQLList(NewGraphQLNonNull(__InputValue)),
Resolve: func(p GQLFRParams) interface{} {
switch ttype := p.Source.(type) {
case *GraphQLInputObjectType:
fields := []*InputObjectField{}
for _, field := range ttype.GetFields() {
fields = append(fields, field)
}
return fields
}
return nil
},
})
__Type.AddFieldConfig("ofType", &GraphQLFieldConfig{
Type: __Type,
})
/**
* Note that these are GraphQLFieldDefinition and not GraphQLFieldConfig,
* so the format for args is different.
*/
SchemaMetaFieldDef = &GraphQLFieldDefinition{
Name: "__schema",
Type: NewGraphQLNonNull(__Schema),
Description: "Access the current type schema of this server.",
Args: []*GraphQLArgument{},
Resolve: func(p GQLFRParams) interface{} {
return p.Info.Schema
},
}
TypeMetaFieldDef = &GraphQLFieldDefinition{
Name: "__type",
Type: __Type,
Description: "Request the type information of a single type.",
Args: []*GraphQLArgument{
&GraphQLArgument{
Name: "name",
Type: NewGraphQLNonNull(GraphQLString),
},
},
Resolve: func(p GQLFRParams) interface{} {
name, ok := p.Args["name"].(string)
if !ok {
return nil
}
return p.Info.Schema.GetType(name)
},
}
TypeNameMetaFieldDef = &GraphQLFieldDefinition{
Name: "__typename",
Type: NewGraphQLNonNull(GraphQLString),
Description: "The name of the current Object type at runtime.",
Args: []*GraphQLArgument{},
Resolve: func(p GQLFRParams) interface{} {
return p.Info.ParentType.GetName()
},
}
}