failing unit test

test/helpers/mongo.js

@@ -0,0 +1,80 @@
+import mongoose from 'mongoose';
+
+// Useful for checking things that have been deleted,
+// but you no longer have access to,
+// like private parties or users
+export async function checkExistence (collectionName, id) {
+  return new Promise((resolve, reject) => {
+    let collection = mongoose.connection.db.collection(collectionName);
+
+    collection.find({_id: id}, {_id: 1}).limit(1).toArray((findError, docs) => {
+      if (findError) return reject(findError);
+
+      let exists = docs.length > 0;
+
+      resolve(exists);
+    });
+  });
+}
+
+// Specifically helpful for the GET /groups tests,
+// resets the db to an empty state and creates a tavern document
+export async function resetHabiticaDB () {
+  return new Promise((resolve, reject) => {
+    mongoose.connection.db.dropDatabase((dbErr) => {
+      if (dbErr) return reject(dbErr);
+      let groups = mongoose.connection.db.collection('groups');
+
+      groups.insertOne({
+        _id: 'habitrpg',
+        chat: [],
+        leader: '9',
+        name: 'HabitRPG',
+        type: 'guild',
+        privacy: 'public',
+      }, (insertErr) => {
+        if (insertErr) return reject(insertErr);
+
+        resolve();
+      });
+    });
+  });
+}
+
+export async function updateDocument (collectionName, doc, update) {
+  let collection = mongoose.connection.db.collection(collectionName);
+
+  return new Promise((resolve) => {
+    collection.updateOne({ _id: doc._id }, { $set: update }, (updateErr) => {
+      if (updateErr) throw new Error(`Error updating ${collectionName}: ${updateErr}`);
+      resolve();
+    });
+  });
+}
+
+export async function getDocument (collectionName, doc) {
+  let collection = mongoose.connection.db.collection(collectionName);
+
+  return new Promise((resolve) => {
+    collection.findOne({ _id: doc._id }, (lookupErr, found) => {
+      if (lookupErr) throw new Error(`Error looking up ${collectionName}: ${lookupErr}`);
+      resolve(found);
+    });
+  });
+}
+
+before((done) => {
+  mongoose.connection.on('open', (err) => {
+    if (err) return done(err);
+    resetHabiticaDB()
+      .then(() => done())
+      .catch(done);
+  });
+});
+
+after((done) => {
+  mongoose.connection.db.dropDatabase((err) => {
+    if (err) return done(err);
+    mongoose.connection.close(done);
+  });
+});