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package graphql.schema.idl
import graphql.TestUtil
import graphql.introspection.Introspection
import graphql.language.Node
import graphql.schema.DataFetcher
import graphql.schema.DataFetcherFactory
import graphql.schema.DataFetcherFactoryEnvironment
import graphql.schema.DataFetchingEnvironment
import graphql.schema.GraphQLAppliedDirective
import graphql.schema.GraphQLCodeRegistry
import graphql.schema.GraphQLDirectiveContainer
import graphql.schema.GraphQLEnumType
import graphql.schema.GraphQLFieldDefinition
import graphql.schema.GraphQLFieldsContainer
import graphql.schema.GraphQLInputObjectType
import graphql.schema.GraphQLInterfaceType
import graphql.schema.GraphQLList
import graphql.schema.GraphQLNamedType
import graphql.schema.GraphQLNonNull
import graphql.schema.GraphQLObjectType
import graphql.schema.GraphQLScalarType
import graphql.schema.GraphQLSchema
import graphql.schema.GraphQLType
import graphql.schema.GraphQLTypeUtil
import graphql.schema.GraphQLUnionType
import graphql.schema.GraphqlTypeComparatorRegistry
import graphql.schema.idl.errors.NotAnInputTypeError
import graphql.schema.idl.errors.NotAnOutputTypeError
import graphql.schema.idl.errors.SchemaProblem
import graphql.schema.visibility.GraphqlFieldVisibility
import spock.lang.Specification
import java.util.function.UnaryOperator
import static graphql.Scalars.GraphQLBoolean
import static graphql.Scalars.GraphQLFloat
import static graphql.Scalars.GraphQLInt
import static graphql.Scalars.GraphQLString
import static graphql.language.AstPrinter.printAst
import static graphql.schema.GraphQLCodeRegistry.newCodeRegistry
import static graphql.schema.idl.SchemaGenerator.Options.defaultOptions
import static graphql.schema.idl.TypeRuntimeWiring.newTypeWiring
class SchemaGeneratorTest extends Specification {
static def newRuntimeWiring() {
return RuntimeWiring.newRuntimeWiring()
.comparatorRegistry(GraphqlTypeComparatorRegistry.BY_NAME_REGISTRY)
}
static GraphQLSchema schema(String sdl) {
def runtimeWiringAsIs = newRuntimeWiring()
.comparatorRegistry(GraphqlTypeComparatorRegistry.BY_NAME_REGISTRY)
.wiringFactory(TestUtil.mockWiringFactory)
.build()
return schema(sdl, runtimeWiringAsIs)
}
static GraphQLSchema schema(String sdl, RuntimeWiring runtimeWiring) {
SchemaGenerator.Options options = defaultOptions().captureAstDefinitions(true)
return TestUtil.schema(options, sdl, runtimeWiring)
}
static GraphQLType unwrap(GraphQLType type) {
while (true) {
if (type instanceof GraphQLNonNull) {
type = (type as GraphQLNonNull).wrappedType
} else if (type instanceof GraphQLList) {
type = (type as GraphQLList).wrappedType
} else {
break
}
}
type
}
static void commonSchemaAsserts(GraphQLSchema schema) {
assert schema.getQueryType().name == "Query"
assert schema.getMutationType().name == "Mutation"
// type Query {
// posts: [Post]
// author(id: Int!): Author
// }
def postField = schema.getQueryType().getFieldDefinition("posts")
assert postField.type instanceof GraphQLList
assert unwrap(postField.type).name == "Post"
def authorField = schema.getQueryType().getFieldDefinition("author")
assert authorField.type.name == "Author"
assert authorField.description == " author query must receive an id as argument"
assert authorField.arguments.get(0).name == "id"
assert authorField.arguments.get(0).type instanceof GraphQLNonNull
assert unwrap(authorField.arguments.get(0).type).name == "Int"
//type Post {
// id: Int!
// title: String
// votes: Int
// author: Author!
//}
GraphQLObjectType postType = schema.getType("Post") as GraphQLObjectType
assert postType.name == "Post"
assert postType.getDefinition().getName() == "Post"
//
// make sure that wrapped non null fields stay that way. we had a bug where decorated types lost their decoration
assert postType.getFieldDefinition("author").type instanceof GraphQLNonNull
assert (postType.getFieldDefinition("author").type as GraphQLNonNull).wrappedType.name == "Author"
assert postType.getFieldDefinition("author").getDefinition().getName() == "author"
//type Author {
// # the ! means that every author object _must_ have an id
// id: Int!
// firstName: String
// lastName: String
// # the list of Posts by this author
// posts: [Post]!
//}
GraphQLObjectType authorType = schema.getType("Author") as GraphQLObjectType
assert authorType.name == "Author"
//
// make sure that wrapped list fields stay that way. we had a bug where decorated types lost their decoration
assert authorType.getFieldDefinition("posts").type instanceof GraphQLNonNull
def wrappedList = (authorType.getFieldDefinition("posts").type as GraphQLNonNull).wrappedType
assert wrappedList instanceof GraphQLList
assert (wrappedList as GraphQLList).wrappedType.name == "Post"
//
// input PostUpVote {
// postId: ID
// votes : Int
// }
// type Mutation {
// upvotePost (
// upvoteArgs : PostUpVote!
// ) : Post
// }
def upvotePostField = schema.getMutationType().getFieldDefinition("upvotePost")
def upvotePostFieldArg = upvotePostField.arguments.get(0)
assert upvotePostFieldArg.name == "upvoteArgs"
assert upvotePostFieldArg.type instanceof GraphQLNonNull
assert unwrap(upvotePostFieldArg.type).name == "PostUpVote"
def inputObjectType = unwrap(upvotePostFieldArg.type) as GraphQLInputObjectType
assert inputObjectType.getDefinition().getName() == "PostUpVote"
assert inputObjectType.getField("postId").type.name == "ID"
assert inputObjectType.getField("votes").type.name == "Int"
assert inputObjectType.getField("votes").getDefinition().name == "votes"
def queryType = schema.getQueryType()
assert queryType.description == " the schema allows the following query\n to be made"
}
def "test simple schema generate"() {
def schemaSpec = """
type Author {
# the ! means that every author object _must_ have an id
id: Int!
firstName: String
lastName: String
# the list of Posts by this author
posts: [Post]!
}
type Post {
id: Int!
title: String
votes: Int
author: Author!
}
# the schema allows the following query
# to be made
type Query {
posts: [Post]
# author query must receive an id as argument
author(id: Int!): Author
}
input PostUpVote {
postId: ID
votes : Int
}
# this schema allows the following mutation:
type Mutation {
upvotePost (
upvoteArgs : PostUpVote!
): Post
}
# we need to tell the server which types represent the root query
# and root mutation types. We call them RootQuery and RootMutation by convention.
schema {
query: Query
mutation: Mutation
}
"""
def schema = schema(schemaSpec)
expect:
commonSchemaAsserts(schema)
}
def "schema can come from multiple sources and be bound together"() {
def schemaSpec1 = """
type Author {
# the ! means that every author object _must_ have an id
id: Int!
firstName: String
lastName: String
# the list of Posts by this author
posts: [Post]!
}
"""
def schemaSpec2 = """
type Post {
id: Int!
title: String
votes: Int
author: Author!
}
"""
def schemaSpec3 = """
# the schema allows the following query
# to be made
type Query {
posts:
[Post]
# author query must receive an id as argument
author(id: Int !): Author
}
input PostUpVote {
postId:
ID
votes:
Int
}
# this schema allows the following mutation:
type Mutation {
upvotePost(
upvoteArgs: PostUpVote !
): Post
}
# we need to tell the server which types represent the root query
# and root mutation types.We call them RootQuery and RootMutation by convention.
schema {
query:
Query
mutation:
Mutation
}
"""
def typeRegistry1 = new SchemaParser().parse(schemaSpec1)
def typeRegistry2 = new SchemaParser().parse(schemaSpec2)
def typeRegistry3 = new SchemaParser().parse(schemaSpec3)
typeRegistry1.merge(typeRegistry2).merge(typeRegistry3)
def schema = new SchemaGenerator().makeExecutableSchema(typeRegistry1, RuntimeWiring.newRuntimeWiring().build())
expect:
commonSchemaAsserts(schema)
}
def "union type: union member used two times "() {
def spec = """
type Query {
foobar: FooOrBar
foo: Foo
}
type Foo {
name: String
}
type Bar {
other: String
}
union FooOrBar = Foo | Bar
schema {
query: Query
}
"""
def schema = schema(spec)
expect:
def foobar = schema.getQueryType().getFieldDefinition("foobar")
foobar.type instanceof GraphQLUnionType
def types = ((GraphQLUnionType) foobar.type).getTypes()
types.size() == 2
types[0] instanceof GraphQLObjectType
types[1] instanceof GraphQLObjectType
types[0].name == "Bar"
types[1].name == "Foo"
}
def "union type: union members only used once"() {
def spec = """
type Query {
foobar: FooOrBar
}
type Foo {
name: String
}
type Bar {
other: String
}
union FooOrBar = Foo | Bar
schema {
query: Query
}
"""
def schema = schema(spec)
expect:
def foobar = schema.getQueryType().getFieldDefinition("foobar")
foobar.type instanceof GraphQLUnionType
def types = ((GraphQLUnionType) foobar.type).getTypes()
types.size() == 2
types[0] instanceof GraphQLObjectType
types[1] instanceof GraphQLObjectType
types[0].name == "Bar"
types[1].name == "Foo"
}
def "union type: union declared before members"() {
def spec = """
union FooOrBar = Foo | Bar
type Foo {
name: String
}
type Bar {
other: String
}
type Query {
foobar: FooOrBar
}
schema {
query: Query
}
"""
def schema = schema(spec)
expect:
def foobar = schema.getQueryType().getFieldDefinition("foobar")
foobar.type instanceof GraphQLUnionType
def types = ((GraphQLUnionType) foobar.type).getTypes()
types.size() == 2
types[0] instanceof GraphQLObjectType
types[1] instanceof GraphQLObjectType
types[0].name == "Bar"
types[1].name == "Foo"
}
def "union type: recursive definition via union type: Foo -> FooOrBar -> Foo "() {
def spec = """
schema {
query: Foo
}
type Foo {
foobar: FooOrBar
}
union FooOrBar = Foo | Bar
type Bar {
other: String
}
"""
def schema = schema(spec)
expect:
def foobar = schema.getQueryType().getFieldDefinition("foobar")
foobar.type instanceof GraphQLUnionType
def unionType = foobar.type as GraphQLUnionType
unionType.getName() == "FooOrBar"
unionType.getDefinition().getName() == "FooOrBar"
def types = unionType.getTypes()
types.size() == 2
types[0] instanceof GraphQLObjectType
types[1] instanceof GraphQLObjectType
types[0].name == "Bar"
types[1].name == "Foo"
}
def "enum types are handled"() {
def spec = """
enum RGB {
RED
GREEN
BLUE
}
type Query {
rgb : RGB
}
schema {
query: Query
}
"""
def schema = schema(spec)
expect:
def rgbField = schema.getQueryType().getFieldDefinition("rgb")
rgbField.type instanceof GraphQLEnumType
def enumType = rgbField.type as GraphQLEnumType
enumType.getName() == "RGB"
enumType.getDefinition().getName() == "RGB"
enumType.values.get(0).getValue() == "BLUE"
enumType.values.get(1).getValue() == "GREEN"
enumType.values.get(2).getValue() == "RED"
}
def "interface types are handled"() {
def spec = """
interface Foo {
is_foo : Boolean
}
interface Goo {
is_goo : Boolean
}
type Query implements Foo {
is_foo : Boolean
is_bar : Boolean
}
schema {
query: Query
}
"""
def schema = schema(spec)
expect:
def interfaceType = schema.queryType.interfaces[0] as GraphQLInterfaceType
interfaceType.name == "Foo"
interfaceType.getDefinition().getName() == "Foo"
schema.queryType.fieldDefinitions[0].name == "is_bar"
schema.queryType.fieldDefinitions[0].type.name == "Boolean"
schema.queryType.fieldDefinitions[1].name == "is_foo"
schema.queryType.fieldDefinitions[1].type.name == "Boolean"
}
def "type extensions can be specified multiple times #406"() {
def spec = """
interface Interface1 {
extraField1 : String
}
interface Interface2 {
extraField1 : String
extraField2 : Int
}
interface Interface3 {
extraField1 : String
extraField3 : ID
}
type BaseType {
baseField : String
}
extend type BaseType implements Interface1 {
extraField1 : String
}
extend type BaseType implements Interface2 {
extraField2 : Int
}
extend type BaseType implements Interface3 {
extraField3 : ID
}
extend type BaseType {
extraField4 : Boolean
}
extend type BaseType {
extraField5 : Boolean!
}
schema {
query: BaseType
}
"""
def schema = schema(spec)
expect:
GraphQLObjectType type = schema.getType("BaseType") as GraphQLObjectType
type.fieldDefinitions.size() == 6
type.fieldDefinitions[0].name == "baseField"
type.fieldDefinitions[0].type.name == "String"
type.fieldDefinitions[1].name == "extraField1"
type.fieldDefinitions[1].type.name == "String"
type.fieldDefinitions[2].name == "extraField2"
type.fieldDefinitions[2].type.name == "Int"
type.fieldDefinitions[3].name == "extraField3"
type.fieldDefinitions[3].type.name == "ID"
type.fieldDefinitions[4].name == "extraField4"
type.fieldDefinitions[4].type.name == "Boolean"
type.fieldDefinitions[5].name == "extraField5"
type.fieldDefinitions[5].type instanceof GraphQLNonNull
def interfaces = type.getInterfaces()
interfaces.size() == 3
interfaces[0].name == "Interface1"
interfaces[1].name == "Interface2"
interfaces[2].name == "Interface3"
}
def "read me type example makes sense"() {
def spec = """
schema {
query: Human
}
type Episode {
name : String
}
interface Character {
name: String!
}
type Human {
id: ID!
name: String!
}
extend type Human implements Character {
friends: [Character]
}
extend type Human {
appearsIn: [Episode]!
homePlanet: String
}
"""
def schema = schema(spec)
expect:
GraphQLObjectType type = schema.getQueryType()
type.name == "Human"
type.fieldDefinitions[0].name == "appearsIn"
type.fieldDefinitions[1].name == "friends"
type.fieldDefinitions[2].name == "homePlanet"
type.fieldDefinitions[3].name == "id"
type.fieldDefinitions[4].name == "name"
type.interfaces.size() == 1
type.interfaces[0].name == "Character"
}
def "Type used as inputType should throw appropriate error #425"() {
when:
def spec = """
schema {
query: Query
}
type Query {
findCharacter(character: CharacterInput!): Boolean
}
# CharacterInput must be an input, but is a type
type CharacterInput {
firstName: String
lastName: String
family: Boolean
}
"""
schema(spec)
then:
def err = thrown(NotAnInputTypeError.class)
err.message == "The type 'CharacterInput' [@11:13] is not an input type, but was used as an input type [@7:42]"
}
def "InputType used as type should throw appropriate error #425"() {
when:
def spec = """
schema {
query: Query
}
type Query {
findCharacter: CharacterInput
}
# CharacterInput must be an input, but is a type
input CharacterInput {
firstName: String
lastName: String
family: Boolean
}
"""
schema(spec)
then:
def err = thrown(NotAnOutputTypeError.class)
err.message == "The type 'CharacterInput' [@11:13] is not an output type, but was used to declare the output type of a field [@7:32]"
}
def "schema with subscription"() {
given:
def spec = """
schema {
query: Query
subscription: Subscription
}
type Query {
foo: String
}
type Subscription {
foo: String
}
"""
when:
def schema = schema(spec)
then:
schema.getSubscriptionType().name == "Subscription"
}
def "comments are used as descriptions"() {
given:
def spec = """
#description 1
# description 2
type Query {
# description 3
foo: String
union: Union
interface(input: Input): Interface
enum: Enum
}
# description 4
union Union = Query
# description 5
interface Interface {
# interface field
foo: String
}
# description 6
input Input {
# input field
foo: String
}
# description 7
enum Enum {
# enum value
FOO
}
schema {
query: Query
}
"""
when:
def schema = schema(spec)
then:
schema.getQueryType().description == "description 1\n description 2"
schema.getQueryType().getFieldDefinition("foo").description == " description 3"
((GraphQLUnionType) schema.getType("Union")).description == " description 4"
((GraphQLInterfaceType) schema.getType("Interface")).description == " description 5"
((GraphQLInterfaceType) schema.getType("Interface")).getFieldDefinition("foo").description == " interface field"
((GraphQLInputObjectType) schema.getType("Input")).description == " description 6 "
((GraphQLInputObjectType) schema.getType("Input")).getFieldDefinition("foo").description == " input field"
((GraphQLEnumType) schema.getType("Enum")).description == " description 7"
((GraphQLEnumType) schema.getType("Enum")).getValue("FOO").description == " enum value"
}
def "doc string comments are used as descriptions by preference"() {
given:
def spec = '''
"docstring 1"
# description 1
# description 2
type Query {
# description 3
"""docstring 3"""
foo: String
union: Union
interface(input: Input): Interface
enum: Enum
}
"""docstring 4"""
# description 4
union Union = Query
"""docstring 5"""
# description 5
interface Interface {
"""docstring interface field"""
# interface field
foo: String
}
"""docstring 6"""
# description 6
input Input {
"""docstring input field"""
# input field
foo: String
}
"""docstring 7"""
# description 7
enum Enum {
"docstring enum value"
# enum value
FOO
}
schema {
query: Query
}
'''
when:
def schema = schema(spec)
then:
schema.getQueryType().description == "docstring 1"
schema.getQueryType().getFieldDefinition("foo").description == "docstring 3"
((GraphQLUnionType) schema.getType("Union")).description == "docstring 4"
((GraphQLInterfaceType) schema.getType("Interface")).description == "docstring 5"
((GraphQLInterfaceType) schema.getType("Interface")).getFieldDefinition("foo").description == "docstring interface field"
((GraphQLInputObjectType) schema.getType("Input")).description == "docstring 6"
((GraphQLInputObjectType) schema.getType("Input")).getFieldDefinition("foo").description == "docstring input field"
((GraphQLEnumType) schema.getType("Enum")).description == "docstring 7"
((GraphQLEnumType) schema.getType("Enum")).getValue("FOO").description == "docstring enum value"
}
def "comments are separated from descriptions with empty lines"() {
given:
def spec = """
# should be ignored comment
#
# description 1
# description 2
type Query {
# this should be ignored
# and this
#
# and this after an empty line
# and the last one that should be ignored
#
# description 3
# description 4
foo: String
# ignored and with not description following
#
bar: String
}
schema {
query: Query
}
"""
when:
def schema = schema(spec)
then:
schema.getQueryType().description == " description 1\n description 2"
schema.getQueryType().getFieldDefinition("foo").description == " description 3\n description 4"
}
enum ExampleEnum {
A,
B,
C
}
def "static enum values provider"() {
given:
def spec = """
type Query {
foo: Enum
}
enum Enum {
A
B
C
}
schema {
query: Query
}
"""
def enumValuesProvider = new NaturalEnumValuesProvider<ExampleEnum>(ExampleEnum.class)
when:
def wiring = newRuntimeWiring()
.type("Enum", { TypeRuntimeWiring.Builder it -> it.enumValues(enumValuesProvider) } as UnaryOperator)
.build()
def schema = schema(spec, wiring)
GraphQLEnumType enumType = schema.getType("Enum") as GraphQLEnumType
then:
enumType.getValue("A").value == ExampleEnum.A
enumType.getValue("B").value == ExampleEnum.B
enumType.getValue("C").value == ExampleEnum.C
}
def " MapEnum values provider"() {
given:
def spec = '''
enum Enum{
A
B
C
}
type Query{
field: Enum
}
'''
when:
def mapEnumProvider = new MapEnumValuesProvider([A: 11, B: 12, C: 13])
def enumTypeWiring = newTypeWiring("Enum").enumValues(mapEnumProvider).build()
def wiring = RuntimeWiring.newRuntimeWiring().type(enumTypeWiring).build()
def schema = TestUtil.schema(spec, wiring)
GraphQLEnumType graphQLEnumType = schema.getType("Enum") as GraphQLEnumType
then:
graphQLEnumType.getValue("A").value == 11
graphQLEnumType.getValue("B").value == 12
graphQLEnumType.getValue("C").value == 13
}
def "enum with no values provider: value is the name"() {
given:
def spec = """
type Query {
foo: Enum
}
enum Enum {
A
B
C
}
schema {
query: Query
}
"""
when:
def schema = schema(spec)
GraphQLEnumType enumType = schema.getType("Enum") as GraphQLEnumType
then:
enumType.getValue("A").value == "A"
enumType.getValue("B").value == "B"
enumType.getValue("C").value == "C"
}
def "deprecated directive is supported"() {
given:
def spec = """
type Query {
foo: Enum @deprecated(reason : "foo reason")
bar: String @deprecated
baz: String
}
enum Enum {
foo @deprecated(reason : "foo reason")
bar @deprecated
baz
}
schema {
query: Query
}
"""
when:
def schema = schema(spec)
GraphQLEnumType enumType = schema.getType("Enum") as GraphQLEnumType
GraphQLObjectType queryType = schema.getType("Query") as GraphQLObjectType
then:
enumType.getValue("foo").getDeprecationReason() == "foo reason"
enumType.getValue("bar").getDeprecationReason() == "No longer supported" // default according to spec
!enumType.getValue("baz").isDeprecated()
queryType.getFieldDefinition("foo").getDeprecationReason() == "foo reason"
queryType.getFieldDefinition("bar").getDeprecationReason() == "No longer supported" // default according to spec
!queryType.getFieldDefinition("baz").isDeprecated()
}
def "specifiedBy directive is supported"() {
given:
def spec = """
type Query {
foo: MyScalar
}
"My scalar has a specifiedBy url"
scalar MyScalar @specifiedBy(url: "myUrl.example")
"""
when:
def schema = schema(spec)
GraphQLScalarType scalar = schema.getType("MyScalar") as GraphQLScalarType
then:
scalar.getSpecifiedByUrl() == "myUrl.example"
scalar.getDescription() == "My scalar has a specifiedBy url"
}
def "specifiedBy requires an url "() {
given:
def spec = """
type Query {
foo: MyScalar
}
scalar MyScalar @specifiedBy
"""