chore: better pattern for memory db

.gitignore

@@ -15,6 +15,7 @@ test-results
 
 # Ignore test directory media folder/files
 /media
+test/media
 /versions
 
 # Created by https://www.toptal.com/developers/gitignore/api/node,macos,windows,webstorm,sublimetext,visualstudiocode

test/buildConfigWithDefaults.ts

@@ -58,7 +58,17 @@ const databaseAdapters = {
     },
   }),
 }
-export function buildConfigWithDefaults(testConfig?: Partial<Config>): Promise<SanitizedConfig> {
+
+export async function buildConfigWithDefaults(
+  testConfig?: Partial<Config>,
+): Promise<SanitizedConfig> {
+  if (process.env.NODE_ENV === 'test') {
+    databaseAdapters.mongoose = mongooseAdapter({
+      mongoMemoryServer: global._mongoMemoryServer,
+      url: process.env.MONGODB_MEMORY_SERVER_URI,
+    })
+  }
+
   const config: Config = {
     db: databaseAdapters[process.env.PAYLOAD_DATABASE || 'mongoose'],
     secret: 'TEST_SECRET',

test/helpers/initPayloadE2E.ts

@@ -8,8 +8,8 @@ import { type Payload } from 'payload'
 import { wait } from 'payload/utilities'
 import { parse } from 'url'
 
-import { startMemoryDB } from '../startMemoryDB.js'
 import { createTestHooks } from '../testHooks.js'
+import { startMemoryDB } from './startMemoryDB.js'
 
 type Args = {
   config: Promise<SanitizedConfig>
@@ -22,18 +22,12 @@ type Result = {
 }
 
 export async function initPayloadE2E({ config, dirname }: Args): Promise<Result> {
-  process.env.NODE_OPTIONS = '--no-deprecation'
   const testSuiteName = dirname.split('/').pop()
   const { beforeTest } = await createTestHooks(testSuiteName)
   await beforeTest()
+  await startMemoryDB()
 
-  process.env.PAYLOAD_DROP_DATABASE = 'true'
-
-  // @ts-expect-error
-  process.env.NODE_ENV = 'test'
-
-  const configWithMemoryDB = await startMemoryDB(config)
-  const payload = await getPayloadHMR({ config: configWithMemoryDB })
+  const payload = await getPayloadHMR({ config })
 
   const port = 3000
   process.env.PORT = String(port)

test/helpers/initPayloadInt.ts

@@ -2,18 +2,18 @@ import type { SanitizedConfig } from 'payload/config'
 
 import { type Payload, getPayload } from 'payload'
 
-import { startMemoryDB } from '../startMemoryDB.js'
 import { NextRESTClient } from './NextRESTClient.js'
+import { startMemoryDB } from './startMemoryDB.js'
 
 /**
  * Initialize Payload configured for integration tests
  */
 export async function initPayloadInt(
-  configPromise: Promise<SanitizedConfig>,
+  config: Promise<SanitizedConfig>,
 ): Promise<{ config: SanitizedConfig; payload: Payload; restClient: NextRESTClient }> {
-  const config = await startMemoryDB(configPromise)
+  await startMemoryDB()
   const payload = await getPayload({ config })
   const restClient = new NextRESTClient(payload.config)
 
-  return { config, payload, restClient }
+  return { config: payload.config, payload, restClient }
 }

test/helpers/startMemoryDB.ts

@@ -0,0 +1,21 @@
+import { MongoMemoryReplSet } from 'mongodb-memory-server'
+
+export const startMemoryDB = async () => {
+  process.env.NODE_ENV = 'test'
+  process.env.PAYLOAD_DROP_DATABASE = 'true'
+  process.env.NODE_OPTIONS = '--no-deprecation'
+
+  if (
+    (!process.env.PAYLOAD_DATABASE || process.env.PAYLOAD_DATABASE === 'mongoose') &&
+    !global._mongoMemoryServer
+  ) {
+    global._mongoMemoryServer = await MongoMemoryReplSet.create({
+      replSet: {
+        count: 3,
+        dbName: 'payloadmemory',
+      },
+    })
+
+    process.env.MONGODB_MEMORY_SERVER_URI = global._mongoMemoryServer.getUri()
+  }
+}

test/startMemoryDB.ts

@@ -1,41 +0,0 @@
-import type { SanitizedConfig } from 'payload/config'
-
-import { mongooseAdapter } from '@payloadcms/db-mongodb'
-import { MongoMemoryReplSet } from 'mongodb-memory-server'
-
-import Logger from '../packages/payload/src/utilities/logger.js'
-
-export const startMemoryDB = async (
-  configPromise: Promise<SanitizedConfig>,
-): Promise<SanitizedConfig> => {
-  const config = await configPromise
-
-  process.env.NODE_OPTIONS = '--no-deprecation'
-
-  const logger = Logger()
-
-  switch (process.env.PAYLOAD_DATABASE) {
-    case 'postgres':
-    case 'supabase':
-    case 'postgres-uuid': {
-      return config
-    }
-
-    default: {
-      if (!process.env.CI) logger.info('---- CONNECTING TO MEMORY DB ----')
-      const db = await MongoMemoryReplSet.create({
-        replSet: {
-          count: 3,
-          dbName: 'payloadmemory',
-        },
-      })
-
-      config.db = mongooseAdapter({
-        mongoMemoryServer: db,
-        url: db.getUri(),
-      })
-
-      return config
-    }
-  }
-}