fix: use instance.kill() in MemoryServer and update dependencies (#29)

* fix(MemoryServer): use instance.kill() instead of childProcess.kill()
* build(CI): test on Node versions 8, 6, 4
* chore(package): update dpendencies and fix new prettier errors
* build(ci): remove tests on node 4 due mime@2.0.3 incompatibility
Don't worry this library still works on Node v4. mime@2.0.3 is used by
semantic-release

.travis.yml

@@ -8,10 +8,8 @@ cache:
 notifications:
   email: true
 node_js:
-  - "7"
+  - "8"
   - "6"
-  - "5"
-  - "4"
 before_install: yarn global add greenkeeper-lockfile@1
 before_script: greenkeeper-lockfile-update
 after_script: greenkeeper-lockfile-upload

package.json

@@ -24,39 +24,39 @@
   "homepage": "https://github.com/nodkz/mongodb-memory-server",
   "devDependencies": {
     "babel-cli": "^6.26.0",
-    "babel-eslint": "^8.0.0",
-    "babel-jest": "^21.0.2",
+    "babel-eslint": "^8.0.2",
+    "babel-jest": "^21.2.0",
     "babel-plugin-transform-class-properties": "^6.24.1",
     "babel-plugin-transform-flow-strip-types": "^6.22.0",
     "babel-plugin-transform-object-rest-spread": "^6.26.0",
     "babel-plugin-transform-runtime": "^6.23.0",
-    "babel-preset-env": "^1.5.2",
-    "cz-conventional-changelog": "^2.0.0",
-    "eslint": "^4.6.1",
-    "eslint-config-airbnb-base": "^12.0.0",
-    "eslint-config-prettier": "^2.4.0",
-    "eslint-plugin-flowtype": "^2.35.1",
-    "eslint-plugin-import": "^2.3.0",
-    "eslint-plugin-prettier": "^2.1.1",
-    "flow-bin": "^0.54.1",
-    "jest": "^21.1.0",
-    "mongodb": "^2.2.28",
+    "babel-preset-env": "^1.6.1",
+    "cz-conventional-changelog": "^2.1.0",
+    "eslint": "^4.10.0",
+    "eslint-config-airbnb-base": "^12.1.0",
+    "eslint-config-prettier": "^2.7.0",
+    "eslint-plugin-flowtype": "^2.39.1",
+    "eslint-plugin-import": "^2.8.0",
+    "eslint-plugin-prettier": "^2.3.1",
+    "flow-bin": "^0.58.0",
+    "jest": "^21.2.1",
+    "mongodb": "^2.2.33",
     "npm-run-all": "^4.1.1",
-    "prettier": "^1.6.1",
+    "prettier": "^1.8.0",
     "rimraf": "^2.6.2",
-    "semantic-release": "^7.0.2"
+    "semantic-release": "^8.2.0"
   },
   "dependencies": {
     "babel-runtime": "^6.26.0",
-    "debug": "^3.0.1",
+    "debug": "^3.1.0",
     "decompress": "^4.2.0",
     "fs-extra": "^4.0.2",
     "get-port": "^3.2.0",
-    "getos": "^3.0.1",
+    "getos": "^3.1.0",
     "lockfile": "^1.0.3",
-    "md5-file": "^3.2.2",
+    "md5-file": "^3.2.3",
     "mkdirp": "^0.5.1",
-    "request-promise": "^4.2.1",
+    "request-promise": "^4.2.2",
     "tmp": "^0.0.33",
     "uuid": "^3.0.1"
   },

src/MongoMemoryServer.js

@@ -95,7 +95,8 @@ export default class MongoMemoryServer {
       .catch(err => {
         if (!this.opts.debug) {
           throw new Error(
-            `${err.message}\n\nUse debug option for more info: new MongoMemoryServer({ debug: true })`
+            `${err.message}\n\nUse debug option for more info: ` +
+              `new MongoMemoryServer({ debug: true })`
           );
         }
         throw err;
@@ -145,15 +146,10 @@ export default class MongoMemoryServer {
   }
 
   async stop(): Promise<boolean> {
-    const { childProcess, port, tmpDir } = (await this.getInstanceData(): MongoInstanceDataT);
+    const { instance, port, tmpDir } = (await this.getInstanceData(): MongoInstanceDataT);
 
-    if (childProcess && childProcess.kill) {
-      this.debug(`Shutdown MongoDB server on port ${port} with pid ${childProcess.pid}`);
-      await new Promise(resolve => {
-        childProcess.once(`exit`, resolve);
-        childProcess.kill();
-      });
-    }
+    this.debug(`Shutdown MongoDB server on port ${port} with pid ${instance.getPid() || ''}`);
+    await instance.kill();
 
     if (tmpDir) {
       this.debug(`Removing tmpDir ${tmpDir.name}`);

src/util/MongoBinaryDownload.js

@@ -190,8 +190,8 @@ export default class MongoBinaryDownload {
 
     const crReturn = this.platform === 'win32' ? '\x1b[0G' : '\r';
     process.stdout.write(
-      `Downloading MongoDB ${this.version}: ${percentComplete} % (${mbComplete}mb / ${this
-        .dlProgress.totalMb}mb)${crReturn}`
+      `Downloading MongoDB ${this.version}: ${percentComplete} % (${mbComplete}mb ` +
+        `/ ${this.dlProgress.totalMb}mb)${crReturn}`
     );
   }