/
buildASTSchema-test.ts
1108 lines (929 loc) · 25.9 KB
/
buildASTSchema-test.ts
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import { expect } from 'chai';
import { describe, it } from 'mocha';
import { dedent } from '../../__testUtils__/dedent';
import { invariant } from '../../jsutils/invariant';
import type { ASTNode } from '../../language/ast';
import { Kind } from '../../language/kinds';
import { parse } from '../../language/parser';
import { print } from '../../language/printer';
import { GraphQLSchema } from '../../type/schema';
import { validateSchema } from '../../type/validate';
import { __Schema, __EnumValue } from '../../type/introspection';
import {
assertDirective,
GraphQLSkipDirective,
GraphQLIncludeDirective,
GraphQLDeprecatedDirective,
GraphQLSpecifiedByDirective,
} from '../../type/directives';
import {
GraphQLID,
GraphQLInt,
GraphQLFloat,
GraphQLString,
GraphQLBoolean,
} from '../../type/scalars';
import {
assertObjectType,
assertInputObjectType,
assertEnumType,
assertUnionType,
assertInterfaceType,
assertScalarType,
} from '../../type/definition';
import { graphqlSync } from '../../graphql';
import { printType, printSchema } from '../printSchema';
import { buildASTSchema, buildSchema } from '../buildASTSchema';
import type { Maybe } from '../../jsutils/Maybe';
/**
* This function does a full cycle of going from a string with the contents of
* the SDL, parsed in a schema AST, materializing that schema AST into an
* in-memory GraphQLSchema, and then finally printing that object into the SDL
*/
function cycleSDL(sdl: string): string {
return printSchema(buildSchema(sdl));
}
function expectASTNode(obj: Maybe<{ readonly astNode: Maybe<ASTNode> }>) {
invariant(obj?.astNode != null);
return expect(print(obj.astNode));
}
function expectExtensionASTNodes(obj: {
readonly extensionASTNodes: ReadonlyArray<ASTNode>;
}) {
return expect(obj.extensionASTNodes.map(print).join('\n\n'));
}
describe('Schema Builder', () => {
it('can use built schema for limited execution', () => {
const schema = buildASTSchema(
parse(`
type Query {
str: String
}
`),
);
const result = graphqlSync({
schema,
source: '{ str }',
rootValue: { str: 123 },
});
expect(result.data).to.deep.equal({ str: '123' });
});
it('can build a schema directly from the source', () => {
const schema = buildSchema(`
type Query {
add(x: Int, y: Int): Int
}
`);
const source = '{ add(x: 34, y: 55) }';
const rootValue = {
add: ({ x, y }: { x: number; y: number }) => x + y,
};
expect(graphqlSync({ schema, source, rootValue })).to.deep.equal({
data: { add: 89 },
});
});
it('Ignores non-type system definitions', () => {
const sdl = `
type Query {
str: String
}
fragment SomeFragment on Query {
str
}
`;
expect(() => buildSchema(sdl)).to.not.throw();
});
it('Match order of default types and directives', () => {
const schema = new GraphQLSchema({});
const sdlSchema = buildASTSchema({
kind: Kind.DOCUMENT,
definitions: [],
});
expect(sdlSchema.getDirectives()).to.deep.equal(schema.getDirectives());
expect(sdlSchema.getTypeMap()).to.deep.equal(schema.getTypeMap());
expect(Object.keys(sdlSchema.getTypeMap())).to.deep.equal(
Object.keys(schema.getTypeMap()),
);
});
it('Empty type', () => {
const sdl = dedent`
type EmptyType
`;
expect(cycleSDL(sdl)).to.equal(sdl);
});
it('Simple type', () => {
const sdl = dedent`
type Query {
str: String
int: Int
float: Float
id: ID
bool: Boolean
}
`;
expect(cycleSDL(sdl)).to.equal(sdl);
const schema = buildSchema(sdl);
// Built-ins are used
expect(schema.getType('Int')).to.equal(GraphQLInt);
expect(schema.getType('Float')).to.equal(GraphQLFloat);
expect(schema.getType('String')).to.equal(GraphQLString);
expect(schema.getType('Boolean')).to.equal(GraphQLBoolean);
expect(schema.getType('ID')).to.equal(GraphQLID);
});
it('include standard type only if it is used', () => {
const schema = buildSchema('type Query');
// String and Boolean are always included through introspection types
expect(schema.getType('Int')).to.equal(undefined);
expect(schema.getType('Float')).to.equal(undefined);
expect(schema.getType('ID')).to.equal(undefined);
});
it('With directives', () => {
const sdl = dedent`
directive @foo(arg: Int) on FIELD
directive @repeatableFoo(arg: Int) repeatable on FIELD
`;
expect(cycleSDL(sdl)).to.equal(sdl);
});
it('Supports descriptions', () => {
const sdl = dedent`
"""Do you agree that this is the most creative schema ever?"""
schema {
query: Query
}
"""This is a directive"""
directive @foo(
"""It has an argument"""
arg: Int
) on FIELD
"""Who knows what inside this scalar?"""
scalar MysteryScalar
"""This is a input object type"""
input FooInput {
"""It has a field"""
field: Int
}
"""This is a interface type"""
interface Energy {
"""It also has a field"""
str: String
}
"""There is nothing inside!"""
union BlackHole
"""With an enum"""
enum Color {
RED
"""Not a creative color"""
GREEN
BLUE
}
"""What a great type"""
type Query {
"""And a field to boot"""
str: String
}
`;
expect(cycleSDL(sdl)).to.equal(sdl);
});
it('Maintains @include, @skip & @specifiedBy', () => {
const schema = buildSchema('type Query');
expect(schema.getDirectives()).to.have.lengthOf(4);
expect(schema.getDirective('skip')).to.equal(GraphQLSkipDirective);
expect(schema.getDirective('include')).to.equal(GraphQLIncludeDirective);
expect(schema.getDirective('deprecated')).to.equal(
GraphQLDeprecatedDirective,
);
expect(schema.getDirective('specifiedBy')).to.equal(
GraphQLSpecifiedByDirective,
);
});
it('Overriding directives excludes specified', () => {
const schema = buildSchema(`
directive @skip on FIELD
directive @include on FIELD
directive @deprecated on FIELD_DEFINITION
directive @specifiedBy on FIELD_DEFINITION
`);
expect(schema.getDirectives()).to.have.lengthOf(4);
expect(schema.getDirective('skip')).to.not.equal(GraphQLSkipDirective);
expect(schema.getDirective('include')).to.not.equal(
GraphQLIncludeDirective,
);
expect(schema.getDirective('deprecated')).to.not.equal(
GraphQLDeprecatedDirective,
);
expect(schema.getDirective('specifiedBy')).to.not.equal(
GraphQLSpecifiedByDirective,
);
});
it('Adding directives maintains @include, @skip & @specifiedBy', () => {
const schema = buildSchema(`
directive @foo(arg: Int) on FIELD
`);
expect(schema.getDirectives()).to.have.lengthOf(5);
expect(schema.getDirective('skip')).to.not.equal(undefined);
expect(schema.getDirective('include')).to.not.equal(undefined);
expect(schema.getDirective('deprecated')).to.not.equal(undefined);
expect(schema.getDirective('specifiedBy')).to.not.equal(undefined);
});
it('Type modifiers', () => {
const sdl = dedent`
type Query {
nonNullStr: String!
listOfStrings: [String]
listOfNonNullStrings: [String!]
nonNullListOfStrings: [String]!
nonNullListOfNonNullStrings: [String!]!
}
`;
expect(cycleSDL(sdl)).to.equal(sdl);
});
it('Recursive type', () => {
const sdl = dedent`
type Query {
str: String
recurse: Query
}
`;
expect(cycleSDL(sdl)).to.equal(sdl);
});
it('Two types circular', () => {
const sdl = dedent`
type TypeOne {
str: String
typeTwo: TypeTwo
}
type TypeTwo {
str: String
typeOne: TypeOne
}
`;
expect(cycleSDL(sdl)).to.equal(sdl);
});
it('Single argument field', () => {
const sdl = dedent`
type Query {
str(int: Int): String
floatToStr(float: Float): String
idToStr(id: ID): String
booleanToStr(bool: Boolean): String
strToStr(bool: String): String
}
`;
expect(cycleSDL(sdl)).to.equal(sdl);
});
it('Simple type with multiple arguments', () => {
const sdl = dedent`
type Query {
str(int: Int, bool: Boolean): String
}
`;
expect(cycleSDL(sdl)).to.equal(sdl);
});
it('Empty interface', () => {
const sdl = dedent`
interface EmptyInterface
`;
const definition = parse(sdl).definitions[0];
expect(
definition.kind === 'InterfaceTypeDefinition' && definition.interfaces,
).to.deep.equal([], 'The interfaces property must be an empty array.');
expect(cycleSDL(sdl)).to.equal(sdl);
});
it('Simple type with interface', () => {
const sdl = dedent`
type Query implements WorldInterface {
str: String
}
interface WorldInterface {
str: String
}
`;
expect(cycleSDL(sdl)).to.equal(sdl);
});
it('Simple interface hierarchy', () => {
const sdl = dedent`
schema {
query: Child
}
interface Child implements Parent {
str: String
}
type Hello implements Parent & Child {
str: String
}
interface Parent {
str: String
}
`;
expect(cycleSDL(sdl)).to.equal(sdl);
});
it('Empty enum', () => {
const sdl = dedent`
enum EmptyEnum
`;
expect(cycleSDL(sdl)).to.equal(sdl);
});
it('Simple output enum', () => {
const sdl = dedent`
enum Hello {
WORLD
}
type Query {
hello: Hello
}
`;
expect(cycleSDL(sdl)).to.equal(sdl);
});
it('Simple input enum', () => {
const sdl = dedent`
enum Hello {
WORLD
}
type Query {
str(hello: Hello): String
}
`;
expect(cycleSDL(sdl)).to.equal(sdl);
});
it('Multiple value enum', () => {
const sdl = dedent`
enum Hello {
WO
RLD
}
type Query {
hello: Hello
}
`;
expect(cycleSDL(sdl)).to.equal(sdl);
});
it('Empty union', () => {
const sdl = dedent`
union EmptyUnion
`;
expect(cycleSDL(sdl)).to.equal(sdl);
});
it('Simple Union', () => {
const sdl = dedent`
union Hello = World
type Query {
hello: Hello
}
type World {
str: String
}
`;
expect(cycleSDL(sdl)).to.equal(sdl);
});
it('Multiple Union', () => {
const sdl = dedent`
union Hello = WorldOne | WorldTwo
type Query {
hello: Hello
}
type WorldOne {
str: String
}
type WorldTwo {
str: String
}
`;
expect(cycleSDL(sdl)).to.equal(sdl);
});
it('Can build recursive Union', () => {
const schema = buildSchema(`
union Hello = Hello
type Query {
hello: Hello
}
`);
const errors = validateSchema(schema);
expect(errors).to.have.lengthOf.above(0);
});
it('Custom Scalar', () => {
const sdl = dedent`
scalar CustomScalar
type Query {
customScalar: CustomScalar
}
`;
expect(cycleSDL(sdl)).to.equal(sdl);
});
it('Empty Input Object', () => {
const sdl = dedent`
input EmptyInputObject
`;
expect(cycleSDL(sdl)).to.equal(sdl);
});
it('Simple Input Object', () => {
const sdl = dedent`
input Input {
int: Int
}
type Query {
field(in: Input): String
}
`;
expect(cycleSDL(sdl)).to.equal(sdl);
});
it('Simple argument field with default', () => {
const sdl = dedent`
type Query {
str(int: Int = 2): String
}
`;
expect(cycleSDL(sdl)).to.equal(sdl);
});
it('Custom scalar argument field with default', () => {
const sdl = dedent`
scalar CustomScalar
type Query {
str(int: CustomScalar = 2): String
}
`;
expect(cycleSDL(sdl)).to.equal(sdl);
});
it('Simple type with mutation', () => {
const sdl = dedent`
schema {
query: HelloScalars
mutation: Mutation
}
type HelloScalars {
str: String
int: Int
bool: Boolean
}
type Mutation {
addHelloScalars(str: String, int: Int, bool: Boolean): HelloScalars
}
`;
expect(cycleSDL(sdl)).to.equal(sdl);
});
it('Simple type with subscription', () => {
const sdl = dedent`
schema {
query: HelloScalars
subscription: Subscription
}
type HelloScalars {
str: String
int: Int
bool: Boolean
}
type Subscription {
subscribeHelloScalars(str: String, int: Int, bool: Boolean): HelloScalars
}
`;
expect(cycleSDL(sdl)).to.equal(sdl);
});
it('Unreferenced type implementing referenced interface', () => {
const sdl = dedent`
type Concrete implements Interface {
key: String
}
interface Interface {
key: String
}
type Query {
interface: Interface
}
`;
expect(cycleSDL(sdl)).to.equal(sdl);
});
it('Unreferenced interface implementing referenced interface', () => {
const sdl = dedent`
interface Child implements Parent {
key: String
}
interface Parent {
key: String
}
type Query {
interfaceField: Parent
}
`;
expect(cycleSDL(sdl)).to.equal(sdl);
});
it('Unreferenced type implementing referenced union', () => {
const sdl = dedent`
type Concrete {
key: String
}
type Query {
union: Union
}
union Union = Concrete
`;
expect(cycleSDL(sdl)).to.equal(sdl);
});
it('Supports @deprecated', () => {
const sdl = dedent`
enum MyEnum {
VALUE
OLD_VALUE @deprecated
OTHER_VALUE @deprecated(reason: "Terrible reasons")
}
input MyInput {
oldInput: String @deprecated
otherInput: String @deprecated(reason: "Use newInput")
newInput: String
}
type Query {
field1: String @deprecated
field2: Int @deprecated(reason: "Because I said so")
enum: MyEnum
field3(oldArg: String @deprecated, arg: String): String
field4(oldArg: String @deprecated(reason: "Why not?"), arg: String): String
field5(arg: MyInput): String
}
`;
expect(cycleSDL(sdl)).to.equal(sdl);
const schema = buildSchema(sdl);
const myEnum = assertEnumType(schema.getType('MyEnum'));
const value = myEnum.getValue('VALUE');
expect(value).to.include({ deprecationReason: undefined });
const oldValue = myEnum.getValue('OLD_VALUE');
expect(oldValue).to.include({
deprecationReason: 'No longer supported',
});
const otherValue = myEnum.getValue('OTHER_VALUE');
expect(otherValue).to.include({
deprecationReason: 'Terrible reasons',
});
const rootFields = assertObjectType(schema.getType('Query')).getFields();
expect(rootFields.field1).to.include({
deprecationReason: 'No longer supported',
});
expect(rootFields.field2).to.include({
deprecationReason: 'Because I said so',
});
const inputFields = assertInputObjectType(
schema.getType('MyInput'),
).getFields();
const newInput = inputFields.newInput;
expect(newInput).to.include({
deprecationReason: undefined,
});
const oldInput = inputFields.oldInput;
expect(oldInput).to.include({
deprecationReason: 'No longer supported',
});
const otherInput = inputFields.otherInput;
expect(otherInput).to.include({
deprecationReason: 'Use newInput',
});
const field3OldArg = rootFields.field3.args[0];
expect(field3OldArg).to.include({
deprecationReason: 'No longer supported',
});
const field4OldArg = rootFields.field4.args[0];
expect(field4OldArg).to.include({
deprecationReason: 'Why not?',
});
});
it('Supports @specifiedBy', () => {
const sdl = dedent`
scalar Foo @specifiedBy(url: "https://example.com/foo_spec")
type Query {
foo: Foo @deprecated
}
`;
expect(cycleSDL(sdl)).to.equal(sdl);
const schema = buildSchema(sdl);
expect(schema.getType('Foo')).to.include({
specifiedByURL: 'https://example.com/foo_spec',
});
});
it('Correctly extend scalar type', () => {
const schema = buildSchema(`
scalar SomeScalar
extend scalar SomeScalar @foo
extend scalar SomeScalar @bar
directive @foo on SCALAR
directive @bar on SCALAR
`);
const someScalar = assertScalarType(schema.getType('SomeScalar'));
expect(printType(someScalar)).to.equal(dedent`
scalar SomeScalar
`);
expectASTNode(someScalar).to.equal('scalar SomeScalar');
expectExtensionASTNodes(someScalar).to.equal(dedent`
extend scalar SomeScalar @foo
extend scalar SomeScalar @bar
`);
});
it('Correctly extend object type', () => {
const schema = buildSchema(`
type SomeObject implements Foo {
first: String
}
extend type SomeObject implements Bar {
second: Int
}
extend type SomeObject implements Baz {
third: Float
}
interface Foo
interface Bar
interface Baz
`);
const someObject = assertObjectType(schema.getType('SomeObject'));
expect(printType(someObject)).to.equal(dedent`
type SomeObject implements Foo & Bar & Baz {
first: String
second: Int
third: Float
}
`);
expectASTNode(someObject).to.equal(dedent`
type SomeObject implements Foo {
first: String
}
`);
expectExtensionASTNodes(someObject).to.equal(dedent`
extend type SomeObject implements Bar {
second: Int
}
extend type SomeObject implements Baz {
third: Float
}
`);
});
it('Correctly extend interface type', () => {
const schema = buildSchema(dedent`
interface SomeInterface {
first: String
}
extend interface SomeInterface {
second: Int
}
extend interface SomeInterface {
third: Float
}
`);
const someInterface = assertInterfaceType(schema.getType('SomeInterface'));
expect(printType(someInterface)).to.equal(dedent`
interface SomeInterface {
first: String
second: Int
third: Float
}
`);
expectASTNode(someInterface).to.equal(dedent`
interface SomeInterface {
first: String
}
`);
expectExtensionASTNodes(someInterface).to.equal(dedent`
extend interface SomeInterface {
second: Int
}
extend interface SomeInterface {
third: Float
}
`);
});
it('Correctly extend union type', () => {
const schema = buildSchema(`
union SomeUnion = FirstType
extend union SomeUnion = SecondType
extend union SomeUnion = ThirdType
type FirstType
type SecondType
type ThirdType
`);
const someUnion = assertUnionType(schema.getType('SomeUnion'));
expect(printType(someUnion)).to.equal(dedent`
union SomeUnion = FirstType | SecondType | ThirdType
`);
expectASTNode(someUnion).to.equal('union SomeUnion = FirstType');
expectExtensionASTNodes(someUnion).to.equal(dedent`
extend union SomeUnion = SecondType
extend union SomeUnion = ThirdType
`);
});
it('Correctly extend enum type', () => {
const schema = buildSchema(dedent`
enum SomeEnum {
FIRST
}
extend enum SomeEnum {
SECOND
}
extend enum SomeEnum {
THIRD
}
`);
const someEnum = assertEnumType(schema.getType('SomeEnum'));
expect(printType(someEnum)).to.equal(dedent`
enum SomeEnum {
FIRST
SECOND
THIRD
}
`);
expectASTNode(someEnum).to.equal(dedent`
enum SomeEnum {
FIRST
}
`);
expectExtensionASTNodes(someEnum).to.equal(dedent`
extend enum SomeEnum {
SECOND
}
extend enum SomeEnum {
THIRD
}
`);
});
it('Correctly extend input object type', () => {
const schema = buildSchema(dedent`
input SomeInput {
first: String
}
extend input SomeInput {
second: Int
}
extend input SomeInput {
third: Float
}
`);
const someInput = assertInputObjectType(schema.getType('SomeInput'));
expect(printType(someInput)).to.equal(dedent`
input SomeInput {
first: String
second: Int
third: Float
}
`);
expectASTNode(someInput).to.equal(dedent`
input SomeInput {
first: String
}
`);
expectExtensionASTNodes(someInput).to.equal(dedent`
extend input SomeInput {
second: Int
}
extend input SomeInput {
third: Float
}
`);
});
it('Correctly assign AST nodes', () => {
const sdl = dedent`
schema {
query: Query
}
type Query {
testField(testArg: TestInput): TestUnion
}
input TestInput {
testInputField: TestEnum
}
enum TestEnum {
TEST_VALUE
}
union TestUnion = TestType
interface TestInterface {
interfaceField: String
}
type TestType implements TestInterface {
interfaceField: String
}
scalar TestScalar
directive @test(arg: TestScalar) on FIELD
`;
const ast = parse(sdl, { noLocation: true });
const schema = buildASTSchema(ast);
const query = assertObjectType(schema.getType('Query'));
const testInput = assertInputObjectType(schema.getType('TestInput'));
const testEnum = assertEnumType(schema.getType('TestEnum'));
const testUnion = assertUnionType(schema.getType('TestUnion'));
const testInterface = assertInterfaceType(schema.getType('TestInterface'));
const testType = assertObjectType(schema.getType('TestType'));
const testScalar = assertScalarType(schema.getType('TestScalar'));
const testDirective = assertDirective(schema.getDirective('test'));
expect([
schema.astNode,
query.astNode,
testInput.astNode,
testEnum.astNode,
testUnion.astNode,
testInterface.astNode,
testType.astNode,
testScalar.astNode,
testDirective.astNode,
]).to.be.deep.equal(ast.definitions);
const testField = query.getFields().testField;
expectASTNode(testField).to.equal(
'testField(testArg: TestInput): TestUnion',
);
expectASTNode(testField.args[0]).to.equal('testArg: TestInput');
expectASTNode(testInput.getFields().testInputField).to.equal(
'testInputField: TestEnum',
);
expectASTNode(testEnum.getValue('TEST_VALUE')).to.equal('TEST_VALUE');
expectASTNode(testInterface.getFields().interfaceField).to.equal(
'interfaceField: String',
);
expectASTNode(testType.getFields().interfaceField).to.equal(
'interfaceField: String',
);
expectASTNode(testDirective.args[0]).to.equal('arg: TestScalar');
});
it('Root operation types with custom names', () => {