Add tests to compile generated code

packages/graphqlgen/package.json

@@ -17,8 +17,9 @@
     "build": "npm run lint && tsc --declaration",
     "watch": "tsc -w",
     "lint": "tslint --project tsconfig.json {src,test}/**/*.ts",
-    "t": "jest",
-    "test": "npm run lint && npm run t",
+    "test:local": "jest",
+    "test:watch": "jest --watch",
+    "test": "npm run lint && jest --maxWorkers 4",
     "gen": "ts-node --files src/index.ts"
   },
   "repository": {
@@ -59,6 +60,7 @@
     "@types/prettier": "1.13.2",
     "@types/rimraf": "2.0.2",
     "@types/yargs": "12.0.1",
+    "flow-bin": "^0.86.0",
     "jest": "23.6.0",
     "ts-jest": "23.10.4",
     "ts-node": "7.0.1",

packages/graphqlgen/src/generators/flow-generator.ts

@@ -2,7 +2,11 @@ import * as os from 'os'
 import * as prettier from 'prettier'
 
 import { GenerateArgs, ModelMap, ContextDefinition } from '../types'
-import { GraphQLTypeField, GraphQLTypeObject } from '../source-helper'
+import {
+  GraphQLTypeField,
+  GraphQLTypeObject,
+  GraphQLTypeArgument,
+} from '../source-helper'
 import { upperFirst } from '../utils'
 import {
   getContextName,
@@ -197,7 +201,7 @@ function renderInputArgInterface(
     ${field.arguments
       .map(
         arg =>
-          `${arg.name}: ${printFieldLikeType(
+          `${arg.name}: ${getArgTypePrefix(type, arg)}${printFieldLikeType(
             arg as GraphQLTypeField,
             modelMap,
           )}`,
@@ -207,6 +211,20 @@ function renderInputArgInterface(
   `
 }
 
+const getArgTypePrefix = (
+  type: GraphQLTypeObject,
+  fieldArg: GraphQLTypeArgument,
+): string => {
+  if (
+    fieldArg.type.isScalar ||
+    // Object type includes GQL ID
+    fieldArg.type.isObject ||
+    fieldArg.type.isEnum
+  )
+    return ''
+  return upperFirst(type.name) + '_'
+}
+
 function renderResolverFunctionInterfaces(
   type: GraphQLTypeObject,
   modelMap: ModelMap,

packages/graphqlgen/src/index.ts

@@ -114,7 +114,7 @@ export function generateCode(
   return { generatedTypes, generatedResolvers }
 }
 
-function writeTypes(types: string, config: GraphQLGenDefinition): void {
+export function writeTypes(types: string, config: GraphQLGenDefinition): void {
   // Create generation target folder, if it does not exist
   // TODO: Error handling around this
   mkdirp.sync(path.dirname(config.output))
@@ -135,7 +135,7 @@ function writeTypes(types: string, config: GraphQLGenDefinition): void {
   )
 }
 
-function writeResolversScaffolding(
+export function writeResolversScaffolding(
   resolvers: CodeFileLike[],
   config: GraphQLGenDefinition,
 ) {
@@ -172,8 +172,6 @@ function writeResolversScaffolding(
   })
 
   console.log(chalk.green(`Resolvers scaffolded at ${outputResolversDir}`))
-
-  process.exit(0)
 }
 
 function bootstrapYamlFile() {

packages/graphqlgen/src/source-helper.ts

@@ -49,7 +49,7 @@ export type GraphQLType = GraphQLTypeDefinition & {
   isRequired: boolean
 }
 
-type GraphQLTypeArgument = {
+export type GraphQLTypeArgument = {
   name: string
   type: GraphQLType
 }
@@ -331,7 +331,7 @@ const graphqlToTypescriptFlow: { [key: string]: string } = {
   ID: 'string',
   Int: 'number',
   Float: 'number',
-  DateTime: 'string'
+  DateTime: 'string',
 }
 
 export function graphQLToTypecriptFlowType(type: GraphQLType): string {

packages/graphqlgen/src/tests/fixtures/context/flow-types.js

@@ -1,13 +1,13 @@
 // @flow
 
-interface Data {
+export interface Data {
   users: User[];
 }
 
-interface Context {
+export interface Context {
   data: Data;
 }
 
-interface User {
+export interface User {
   id: string;
 }

packages/graphqlgen/src/tests/fixtures/context/types.ts

@@ -1,11 +1,11 @@
-interface Data {
+export interface Data {
   users: User[]
 }
 
-interface Context {
+export interface Context {
   data: Data
 }
 
-interface User {
+export interface User {
   id: string
 }

packages/graphqlgen/src/tests/fixtures/prisma/flow-types.js

@@ -31,7 +31,7 @@ export interface Review {
   checkIn: number;
   cleanliness: number;
   communication: number;
-  createdAt: undefined;
+  createdAt: string;
   id: string;
   location: number;
   stars: number;
@@ -119,7 +119,7 @@ export interface Amenities {
 
 export interface User {
   bookings: any[];
-  createdAt: undefined;
+  createdAt: string;
   email: string;
   firstName: string;
   hostingExperiences: any[];
@@ -136,30 +136,30 @@ export interface User {
   responseRate: number | null;
   responseTime: number | null;
   sentMessages: any[];
-  updatedAt: undefined;
+  updatedAt: string;
 }
 
 export interface Booking {
   id: string;
-  createdAt: undefined;
+  createdAt: string;
   bookee: any;
   place: any;
-  startDate: undefined;
-  endDate: undefined;
+  startDate: any;
+  endDate: any;
   payment: any;
 }
 
 export interface Payment {
   booking: any;
-  createdAt: undefined;
+  createdAt: string;
   id: string;
   paymentMethod: any;
   serviceFee: number;
 }
 
 export interface PaymentAccount {
   id: string;
-  createdAt: undefined;
+  createdAt: string;
   type: any | null;
   user: any;
   payments: any[];
@@ -170,7 +170,7 @@ export interface PaymentAccount {
 export interface PAYMENT_PROVIDER {}
 
 export interface PaypalInformation {
-  createdAt: undefined;
+  createdAt: string;
   email: string;
   id: string;
   paymentAccount: any;
@@ -179,7 +179,7 @@ export interface PaypalInformation {
 export interface CreditCardInformation {
   cardNumber: string;
   country: string;
-  createdAt: undefined;
+  createdAt: string;
   expiresOnMonth: number;
   expiresOnYear: number;
   firstName: string;
@@ -191,21 +191,21 @@ export interface CreditCardInformation {
 }
 
 export interface Notification {
-  createdAt: undefined;
+  createdAt: string;
   id: string;
   link: string;
-  readDate: undefined;
+  readDate: any;
   type: any | null;
   user: any;
 }
 
 export interface NOTIFICATION_TYPE {}
 
 export interface Message {
-  createdAt: undefined;
-  deliveredAt: undefined;
+  createdAt: string;
+  deliveredAt: any;
   id: string;
-  readAt: undefined;
+  readAt: any;
 }
 
 export interface Pricing {
@@ -242,21 +242,21 @@ export interface Policies {
   checkInEndTime: number;
   checkInStartTime: number;
   checkoutTime: number;
-  createdAt: undefined;
+  createdAt: string;
   id: string;
-  updatedAt: undefined;
+  updatedAt: string;
 }
 
 export interface HouseRules {
   additionalRules: string | null;
-  createdAt: undefined;
+  createdAt: string;
   id: string;
   partiesAndEventsAllowed: boolean | null;
   petsAllowed: boolean | null;
   smokingAllowed: boolean | null;
   suitableForChildren: boolean | null;
   suitableForInfants: boolean | null;
-  updatedAt: undefined;
+  updatedAt: string;
 }
 
 export interface Reservation {

packages/graphqlgen/src/tests/flow/__snapshots__/basic.test.ts.snap

@@ -5,7 +5,7 @@ exports[`basic enum 1`] = `
 // Code generated by github.com/prisma/graphqlgen, DO NOT EDIT.
 
 import type { GraphQLResolveInfo } from \\"graphql\\";
-import type { User } from \\"../../../fixtures/enum/types-flow\\";
+import type { User } from \\"../../fixtures/enum/types-flow\\";
 type Context = any;
 
 type EnumAnnotation = \\"EDITOR\\" | \\"COLLABORATOR\\";
@@ -164,7 +164,7 @@ exports[`basic scalar 1`] = `
 // Code generated by github.com/prisma/graphqlgen, DO NOT EDIT.
 
 import type { GraphQLResolveInfo } from \\"graphql\\";
-import type { AddMemberPayload } from \\"../../../fixtures/scalar/flow-types\\";
+import type { AddMemberPayload } from \\"../../fixtures/scalar/flow-types\\";
 type Context = any;
 
 // Types for Mutation
@@ -176,7 +176,7 @@ export interface Mutation_AddMemberData {
 }
 
 export interface Mutation_Args_AddMember {
-  data: AddMemberData;
+  data: Mutation_AddMemberData;
 }
 
 export type Mutation_AddMember_Resolver = (
@@ -276,7 +276,7 @@ exports[`basic schema 1`] = `
 // Code generated by github.com/prisma/graphqlgen, DO NOT EDIT.
 
 import type { GraphQLResolveInfo } from \\"graphql\\";
-import type { Number } from \\"../../../fixtures/basic/types-flow\\";
+import type { Number } from \\"../../fixtures/basic/types-flow\\";
 type Context = any;
 
 // Types for Query
@@ -614,11 +614,7 @@ exports[`basic union 1`] = `
 // Code generated by github.com/prisma/graphqlgen, DO NOT EDIT.
 
 import type { GraphQLResolveInfo } from \\"graphql\\";
-import type {
-  User,
-  Student,
-  Professor
-} from \\"../../../fixtures/union/flow-types\\";
+import type { User, Student, Professor } from \\"../../fixtures/union/flow-types\\";
 type Context = any;
 
 // Types for User
@@ -791,8 +787,8 @@ exports[`context 1`] = `
 // Code generated by github.com/prisma/graphqlgen, DO NOT EDIT.
 
 import type { GraphQLResolveInfo } from \\"graphql\\";
-import type { User } from \\"../../../fixtures/context/flow-types\\";
-import type { Context } from \\"../../../fixtures/context/flow-types\\";
+import type { User } from \\"../../fixtures/context/flow-types\\";
+import type { Context } from \\"../../fixtures/context/flow-types\\";
 
 // Types for Query
 export const Query_defaultResolvers = {};
@@ -894,7 +890,7 @@ exports[`defaultName 1`] = `
 // Code generated by github.com/prisma/graphqlgen, DO NOT EDIT.
 
 import type { GraphQLResolveInfo } from \\"graphql\\";
-import type { NumberNode } from \\"../../../fixtures/defaultName/flow-types\\";
+import type { NumberNode } from \\"../../fixtures/defaultName/flow-types\\";
 type Context = any;
 
 // Types for Query
@@ -1232,7 +1228,7 @@ exports[`subscription 1`] = `
 // Code generated by github.com/prisma/graphqlgen, DO NOT EDIT.
 
 import type { GraphQLResolveInfo } from \\"graphql\\";
-import type { User } from \\"../../../fixtures/subscription/flow-types\\";
+import type { User } from \\"../../fixtures/subscription/flow-types\\";
 type Context = any;
 
 // Types for Subscription

packages/graphqlgen/src/tests/flow/__snapshots__/large-schema.test.ts.snap

@@ -34,7 +34,7 @@ import type {
   Message,
   AuthPayload,
   MutationResult
-} from \\"../../../fixtures/prisma/flow-types\\";
+} from \\"../../fixtures/prisma/flow-types\\";
 type Context = any;
 
 type PLACE_SIZES =