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schema-printer-test.js
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schema-printer-test.js
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/**
* Copyright (c) 2015-present, Facebook, Inc.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*
* @noflow
*/
import { expect } from 'chai';
import { describe, it } from 'mocha';
import { readFileSync } from 'fs';
import { join } from 'path';
import { parse } from '../parser';
import { print } from '../printer';
import dedent from '../../jsutils/dedent';
describe('Printer: SDL document', () => {
it('prints minimal ast', () => {
const ast = {
kind: 'ScalarTypeDefinition',
name: { kind: 'Name', value: 'foo' },
};
expect(print(ast)).to.equal('scalar foo');
});
it('produces helpful error messages', () => {
const badAst1 = { random: 'Data' };
expect(() => print(badAst1)).to.throw(
'Invalid AST Node: { random: "Data" }',
);
});
const kitchenSink = readFileSync(
join(__dirname, '/schema-kitchen-sink.graphql'),
{ encoding: 'utf8' },
);
it('does not alter ast', () => {
const ast = parse(kitchenSink);
const astBefore = JSON.stringify(ast);
print(ast);
expect(JSON.stringify(ast)).to.equal(astBefore);
});
it('prints kitchen sink', () => {
const ast = parse(kitchenSink);
const printed = print(ast);
expect(printed).to.equal(dedent`
schema {
query: QueryType
mutation: MutationType
}
"""
This is a description
of the \`Foo\` type.
"""
type Foo implements Bar & Baz {
one: Type
"""
This is a description of the \`two\` field.
"""
two(
"""
This is a description of the \`argument\` argument.
"""
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
seven(argument: Int = null): Type
}
type AnnotatedObject @onObject(arg: "value") {
annotatedField(arg: Type = "default" @onArg): Type @onField
}
type UndefinedType
extend type Foo {
seven(argument: [String]): Type
}
extend type Foo @onType
interface Bar {
one: Type
four(argument: String = "string"): String
}
interface AnnotatedInterface @onInterface {
annotatedField(arg: Type @onArg): Type @onField
}
interface UndefinedInterface
extend interface Bar {
two(argument: InputType!): Type
}
extend interface Bar @onInterface
union Feed = Story | Article | Advert
union AnnotatedUnion @onUnion = A | B
union AnnotatedUnionTwo @onUnion = A | B
union UndefinedUnion
extend union Feed = Photo | Video
extend union Feed @onUnion
scalar CustomScalar
scalar AnnotatedScalar @onScalar
extend scalar CustomScalar @onScalar
enum Site {
DESKTOP
MOBILE
}
enum AnnotatedEnum @onEnum {
ANNOTATED_VALUE @onEnumValue
OTHER_VALUE
}
enum UndefinedEnum
extend enum Site {
VR
}
extend enum Site @onEnum
input InputType {
key: String!
answer: Int = 42
}
input AnnotatedInput @onInputObject {
annotatedField: Type @onField
}
input UndefinedInput
extend input InputType {
other: Float = 1.23e4
}
extend input InputType @onInputObject
directive @skip(if: Boolean!) on FIELD | FRAGMENT_SPREAD | INLINE_FRAGMENT
directive @include(if: Boolean!) on FIELD | FRAGMENT_SPREAD | INLINE_FRAGMENT
directive @include2(if: Boolean!) on FIELD | FRAGMENT_SPREAD | INLINE_FRAGMENT
directive @myRepeatableDir(name: String!) repeatable on OBJECT | INTERFACE
extend schema @onSchema
extend schema @onSchema {
subscription: SubscriptionType
}
`);
});
});