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index.test.js
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index.test.js
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const { test } = require('tap')
const normalizeGQLSource = require('.')
const minifyGQLSource = require('../minifyGQLSource')
// Note: the inconsistent spacing and indentation is intentional and part of the test.
const sourceOne = `
directive @paginate on FIELD_DEFINITION
type Human implements Mammal & FriendlyMammal & Friendly @auth(requires: USER code: 99) {
id: ID!
name: String!
email: String!
friends: [Friend]
address: Address
}
extend type Query {
friendsOf(zebraID: ID humanID: ID): [Friend] @paginate @awesome
friend(zebraID: ID humanID: ID): Friend
}
interface Mammal {
id: ID!
name: String!
}
interface Friendly {
friends: [Friend]
}
interface FriendlyMammal implements Mammal & Friendly {
friends: [Friend]
name: String!
id: ID!
}
interface Striped {
stripes: Int!
}
type Address {
street: String!
buildingNum: String!
zipCode: String!
city: String!
country: String!
}
type Zebra implements Striped & Friendly & FriendlyMammal & Mammal @awesome @auth(code: 52, requires: UNKNOWN) {
name: String!
id: ID!
friends: [Friend]
stripes: Int!
}
directive @awesome on OBJECT | FIELD_DEFINITION
union Friend = Zebra | Human
directive @auth(
code: Int
requires: Role = ADMIN
) on OBJECT | FIELD_DEFINITION
enum Role { REVIEWER ADMIN USER UNKNOWN}`
// Same overall schema as sourceOne, just with different spacing and ordering.
const sourceTwo = `
type Address {
buildingNum: String!
city: String!
zipCode: String!
country: String!
street: String!
}
interface Striped {
stripes: Int!
}
extend type Query {
friendsOf(zebraID: ID humanID: ID): [Friend] @paginate @awesome
friend(zebraID: ID humanID: ID): Friend
}
directive @paginate on FIELD_DEFINITION
interface FriendlyMammal implements Friendly & Mammal {
friends: [Friend]
name: String!
id: ID!
}
type Zebra implements FriendlyMammal & Friendly & Striped & Mammal @awesome @auth(requires: UNKNOWN code: 52) {
stripes: Int!
friends: [Friend]
name: String!
id: ID!
}
enum Role {
UNKNOWN
ADMIN
REVIEWER
USER
}
type Human implements Friendly & FriendlyMammal & Mammal @auth(requires: USER code: 99) {
email: String!
name: String!
address: Address
friends: [Friend]
id: ID!
}
interface Friendly {
friends: [Friend]
}
directive @awesome on OBJECT | FIELD_DEFINITION
interface Mammal {
name: String!
id: ID!
}
union Friend = Zebra | Human
directive @auth(
requires: Role = ADMIN
code: Int
) on OBJECT | FIELD_DEFINITION
`
const expected = `directive @auth(code: Int, requires: Role = ADMIN) on FIELD_DEFINITION | OBJECT
directive @awesome on FIELD_DEFINITION | OBJECT
directive @paginate on FIELD_DEFINITION
enum Role {
ADMIN
REVIEWER
UNKNOWN
USER
}
interface Friendly {
friends: [Friend]
}
interface FriendlyMammal implements Friendly & Mammal {
friends: [Friend]
id: ID!
name: String!
}
interface Mammal {
id: ID!
name: String!
}
interface Striped {
stripes: Int!
}
type Address {
buildingNum: String!
city: String!
country: String!
street: String!
zipCode: String!
}
type Human implements Friendly & FriendlyMammal & Mammal @auth(code: 99, requires: USER) {
address: Address
email: String!
friends: [Friend]
id: ID!
name: String!
}
type Zebra implements Friendly & FriendlyMammal & Mammal & Striped @auth(code: 52, requires: UNKNOWN) @awesome {
friends: [Friend]
id: ID!
name: String!
stripes: Int!
}
union Friend = Human | Zebra
extend type Query {
friend(humanID: ID, zebraID: ID): Friend
friendsOf(humanID: ID, zebraID: ID): [Friend] @awesome @paginate
}`
test(
'should group top-level declarations by kind and then alphabetize them along with their fields, directives, arguments, values, types, interfaces, and locations by name.',
async ({ equal }) => {
const { source: sourceOneResult, error: sourceOneError } = normalizeGQLSource(sourceOne)
const { source: sourceTwoResult, error: sourceTwoError } = normalizeGQLSource(sourceTwo)
equal(sourceOneResult, sourceTwoResult, 'once normalized, schemas should be exactly the same if there were only stylistic differences previously.')
equal(sourceOneResult, expected)
equal(sourceTwoResult, expected)
equal(sourceOneError, undefined)
equal(sourceTwoError, undefined)
})
test(
'should minify normalized GQL source if opts.minify is true',
async ({ equal }) => {
const { source: sourceOneResult, error: sourceOneError } = normalizeGQLSource(sourceOne, { minify: true })
const { source: sourceTwoResult, error: sourceTwoError } = normalizeGQLSource(sourceTwo, { minify: true })
equal(sourceOneResult, sourceTwoResult, 'once normalized, schemas should be exactly the same if there were only stylistic differences previously.')
equal(sourceOneResult, minifyGQLSource(expected))
equal(sourceTwoResult, minifyGQLSource(expected))
equal(sourceOneError, undefined)
equal(sourceTwoError, undefined)
})
test(
'should return an error nested under an error key if parsing fails',
async ({ equal }) => {
const schemaWithError = `
type Query {
foo(): String
}`
const { error } = normalizeGQLSource(schemaWithError)
equal(error.message, 'Syntax Error: Expected Name, found ")". Found near: `Query { foo(): String`.')
})
test(
'should throw an Error if not passed a string.',
async ({ throws }) => {
throws(() => normalizeGQLSource(), Error('GraphQL Schema Tools: `normalizeGQLSource` expected a string.'))
})