Integration tests for hackernews example (#1804)

Author: enisdenjo

examples/hackernews/__integration-tests__/hackernews.spec.ts

@@ -0,0 +1,84 @@
+import { DbDrop, MigrateDev } from '@prisma/migrate'
+import { PrismaClient } from '@prisma/client'
+import { createYoga } from 'graphql-yoga'
+import { schema } from '../src/schema'
+import { createContext } from '../src/context'
+
+describe('hackernews example integration', () => {
+  beforeAll(async () => {
+    // migrate
+    await MigrateDev.new().parse([])
+
+    // seed
+    const client = new PrismaClient()
+    await client.link.create({
+      data: {
+        url: 'https://www.prisma.io',
+        description: 'Prisma replaces traditional ORMs',
+      },
+    })
+    await client.$disconnect()
+  })
+
+  afterAll(async () => {
+    // drop
+    await DbDrop.new().parse([
+      '--preview-feature', // DbDrop is an experimental feature
+      '--force',
+    ])
+  })
+
+  const yoga = createYoga({ schema, context: createContext })
+
+  it('should get posts from feed', async () => {
+    const response = await yoga.fetch(
+      'http://yoga/graphql?query={feed{url,description}}',
+    )
+
+    const body = await response.json()
+    expect(body).toMatchInlineSnapshot(`
+      {
+        "data": {
+          "feed": [
+            {
+              "description": "Prisma replaces traditional ORMs",
+              "url": "https://www.prisma.io",
+            },
+          ],
+        },
+      }
+    `)
+  })
+
+  it('should create a new post', async () => {
+    const response = await yoga.fetch('http://yoga/graphql', {
+      method: 'POST',
+      headers: { 'content-type': 'application/json' },
+      body: JSON.stringify({
+        query: /* GraphQL */ `
+          mutation createPost {
+            postLink(
+              url: "https://www.the-guild.dev/graphql/yoga-server"
+              description: "Time to Relax with GraphQL Yoga"
+            ) {
+              url
+              description
+            }
+          }
+        `,
+      }),
+    })
+
+    const body = await response.json()
+    expect(body).toMatchInlineSnapshot(`
+      {
+        "data": {
+          "postLink": {
+            "description": "Time to Relax with GraphQL Yoga",
+            "url": "https://www.the-guild.dev/graphql/yoga-server",
+          },
+        },
+      }
+    `)
+  })
+})

examples/hackernews/__integration-tests__/prisma__migrate.d.ts

@@ -0,0 +1,16 @@
+declare module '@prisma/migrate' {
+  // https://github.com/prisma/prisma/blob/main/packages/internals/src/cli/types.ts
+  class Command {
+    public async parse(argv: string[]): Promise<string | Error>
+  }
+
+  // https://github.com/prisma/prisma/blob/main/packages/migrate/src/commands/DbDrop.ts
+  class DbDrop extends Command {
+    public static new(): DbDrop
+  }
+
+  // https://github.com/prisma/prisma/blob/main/packages/migrate/src/commands/MigrateDev.ts
+  class MigrateDev extends Command {
+    public static new(): DbDrop
+  }
+}

examples/hackernews/package.json

@@ -13,6 +13,8 @@
   "license": "ISC",
   "devDependencies": {
     "@prisma/client": "3.15.2",
+    "@prisma/migrate": "4.3.1",
+    "@prisma/internals": "4.3.1",
     "@types/node": "16.11.60",
     "cross-env": "7.0.3",
     "ts-node": "10.9.1",