diff --git a/addon/schema.js b/addon/schema.js
index e7a779216..d3a316ea7 100644
--- a/addon/schema.js
+++ b/addon/schema.js
@@ -63,7 +63,7 @@ export default function(db) {
 
   this._find = function(type, ids) {
     var collection = pluralize(type);
-    if (!db[collection]) {
+    if (db[collection]) {
       return null;
     }
     var attrs = db[collection].find(ids);
diff --git a/tests/unit/db-test.js b/tests/unit/db-test.js
index ae175d579..f18117638 100644
--- a/tests/unit/db-test.js
+++ b/tests/unit/db-test.js
@@ -149,6 +149,12 @@ test('returns a record whose id is a string that start with numbers', function(a
   assert.deepEqual(contact, {id: '123-456', name: 'Epona'});
 });
 
+test('returns multiple record that matche an arrya of ids', function(assert) {
+  var contacts = db.contacts.find([1, 2]);
+
+  assert.deepEqual(contacts, [{id: 1, name: 'Zelda'}, {id: 2, name: 'Link'}]);
+});
+
 
 module('mirage:db#where', {
   beforeEach: function() {
diff --git a/tests/unit/schema-test.js b/tests/unit/schema-test.js
index 2c35fce75..14a11b007 100644
--- a/tests/unit/schema-test.js
+++ b/tests/unit/schema-test.js
@@ -9,7 +9,7 @@ test('it can be instantiated', function(assert) {
   assert.ok(schema);
 });
 
-test('it can create models', function(assert) {
+test('it can create registered models', function(assert) {
   var schema = new Schema(new Db());
 
   var User = Model.extend();
@@ -22,6 +22,14 @@ test('it can create models', function(assert) {
   assert.deepEqual(user.attrs, {id: 1, name: 'Link'});
 });
 
+test('it cannot create models that havnet been registered', function(assert) {
+  var schema = new Schema(new Db());
+
+  assert.throws(function() {
+    schema.user.create({name: 'Link'});
+  });
+});
+
 test('it can return all models', function(assert) {
   var db = new Db();
   db.createCollection('users');
@@ -38,7 +46,20 @@ test('it can return all models', function(assert) {
   assert.deepEqual(users[1].attrs, {id: 2, name: 'Zelda'});
 });
 
-test('it can find models', function(assert) {
+test('it returns an empty array when no models exist', function(assert) {
+  var db = new Db();
+  db.createCollection('users');
+  var schema = new Schema(db);
+
+  var User = Model.extend();
+  schema.register('user', User);
+
+  var users = schema.user.all();
+
+  assert.equal(users.length, 0);
+});
+
+test('it can find a model by id', function(assert) {
   var db = new Db();
   db.createCollection('users');
   db.users.insert([{id: 1, name: 'Link'}, {id: 2, name: 'Zelda'}]);
@@ -53,3 +74,19 @@ test('it can find models', function(assert) {
   assert.deepEqual(zelda.attrs, {id: 2, name: 'Zelda'});
 });
 
+test('it can find multiple models by ids', function(assert) {
+  var db = new Db();
+  db.createCollection('users');
+  db.users.insert([{id: 1, name: 'Link'}, {id: 2, name: 'Zelda'}]);
+  var schema = new Schema(db);
+
+  var User = Model.extend();
+  schema.register('user', User);
+
+  var users = schema.user.find([1, 2]);
+
+  assert.ok(users[0] instanceof User);
+  assert.equal(users.length, 2);
+  assert.deepEqual(users[1].attrs, {id: 2, name: 'Zelda'});
+});
+