fix(wercker): wait for MongoDB to start before starting build

test/index.js

@@ -5,7 +5,6 @@ const redis = require('./support/redis');
 const users = require('./support/users');
 
 before(done => mongo.on('ready', done));
-
 beforeEach(done => redis.flushall(done));
-beforeEach(done => mongo.users.drop(done));
-beforeEach(done => mongo.users.insert(users, done));
+beforeEach(function (done) { this.timeout(10000); mongo.db.dropDatabase(done); });
+beforeEach(function (done) { this.timeout(10000); mongo.users.insert(users, done); });

test/support/redis.js

@@ -2,7 +2,7 @@
 
 const Redis = require('ioredis');
 
-const addr = process.env.MONGO_PORT_27017_TCP_ADDR || 'redis';
-const port = process.env.MONGO_PORT_27017_TCP_PORT || '6379';
+const addr = process.env.MONGO_PORT_6379_TCP_ADDR || 'redis';
+const port = process.env.MONGO_PORT_6379_TCP_PORT || '6379';
 
 module.exports = new Redis(port, addr);

wercker.yml

@@ -6,6 +6,13 @@ build:
     - redis:3
 
   steps:
+    - script:
+        name: wait for MongoDB to start
+        code: |
+          apt-get update --no-install-recommends -y
+          apt-get install --no-install-recommends -y netcat
+          while ! nc -q 1 $MONGO_PORT_27017_TCP_ADDR $MONGO_PORT_27017_TCP_PORT </dev/null; do sleep 3; done
+
     - script:
         name: echo nodejs information
         code: |