fix: change default mongodb version to latest (#70)

Author: BankyKmitl

README.md

@@ -53,7 +53,7 @@ const mongod = new MongodbMemoryServer({
     debug?: boolean, // by default false
   },
   binary: {
-    version?: string, // by default '3.4.4'
+    version?: string, // by default 'latest'
     downloadDir?: string, // by default %HOME/.mongodb-binaries
     platform?: string, // by default os.platform()
     arch?: string, // by default os.arch()

src/util/MongoBinary.js

@@ -26,7 +26,7 @@ export default class MongoBinary {
       downloadDir = path.resolve(os.homedir(), '.mongodb-binaries'),
       platform = os.platform(),
       arch = os.arch(),
-      version = '3.4.4',
+      version = 'latest',
     } = opts;
 
     let debug;

src/util/__tests__/MongoInstance-test.js

@@ -38,7 +38,7 @@ describe('MongoInstance', () => {
   it('should start instance on port 27333', async () => {
     const mongod = await MongoInstance.run({
       instance: { port: 27333, dbPath: tmpDir.name },
-      binary: { version: '3.4.4' },
+      binary: { version: 'latest' },
     });
 
     expect(mongod.getPid()).toBeGreaterThan(0);
@@ -49,13 +49,13 @@ describe('MongoInstance', () => {
   it('should throw error if port is busy', async () => {
     const mongod = await MongoInstance.run({
       instance: { port: 27444, dbPath: tmpDir.name },
-      binary: { version: '3.4.4' },
+      binary: { version: 'latest' },
     });
 
     await expect(
       MongoInstance.run({
         instance: { port: 27444, dbPath: tmpDir.name },
-        binary: { version: '3.4.4' },
+        binary: { version: 'latest' },
       })
     ).rejects.toBeDefined();
 
@@ -65,7 +65,7 @@ describe('MongoInstance', () => {
   it('should await while mongo is killed', async () => {
     const mongod = await MongoInstance.run({
       instance: { port: 27445, dbPath: tmpDir.name },
-      binary: { version: '3.4.4' },
+      binary: { version: 'latest' },
     });
     const pid: any = mongod.getPid();
     expect(pid).toBeGreaterThan(0);