Add test for options being passed to MongoAdapter from DatabaseAdapter

spec/DatabaseAdapter.spec.js

@@ -0,0 +1,23 @@
+'use strict';
+
+let DatabaseAdapter = require('../src/DatabaseAdapter');
+
+describe('DatabaseAdapter', () => {
+  it('options and URI are available to adapter', done => {
+    DatabaseAdapter.setAppDatabaseURI('optionsTest', 'mongodb://localhost:27017/optionsTest');
+    DatabaseAdapter.setAppDatabaseOptions('optionsTest', {foo: "bar"});
+    let optionsTestDatabaseConnection = DatabaseAdapter.getDatabaseConnection('optionsTest');
+
+    expect(optionsTestDatabaseConnection instanceof Object).toBe(true);
+    expect(optionsTestDatabaseConnection.adapter._options instanceof Object).toBe(true);
+    expect(optionsTestDatabaseConnection.adapter._options.foo).toBe("bar");
+
+    DatabaseAdapter.setAppDatabaseURI('noOptionsTest', 'mongodb://localhost:27017/noOptionsTest');
+    let noOptionsTestDatabaseConnection = DatabaseAdapter.getDatabaseConnection('noOptionsTest');
+
+    expect(noOptionsTestDatabaseConnection instanceof Object).toBe(true);
+    expect(noOptionsTestDatabaseConnection.adapter._options instanceof Object).toBe(false);
+
+    done();
+  });
+});