Adding test for #272

tests/EmbeddedRelationsTest.php

@@ -648,6 +648,7 @@ class EmbeddedRelationsTest extends TestCase {
         $user = User::create(array('name' => 'John Doe'));
         $user->addresses()->save(new Address);
         $this->assertNotNull($user->addresses);
+        $this->assertEquals(1, $user->addresses()->count());
     }
 
 }

tests/RelationsTest.php

@@ -417,4 +417,23 @@ class RelationsTest extends TestCase {
         $this->assertEquals('Paris', $address->data['city']);
     }
 
+    public function testDoubleSave()
+    {
+        $author = User::create(array('name' => 'George R. R. Martin'));
+        $book = Book::create(array('title' => 'A Game of Thrones'));
+
+        $author->books()->save($book);
+        $author->books()->save($book);
+        $author->save();
+        $this->assertEquals(1, $author->books()->count());
+
+        $author = User::where('name', 'George R. R. Martin')->first();
+        $this->assertEquals(1, $author->books()->count());
+
+        $author->books()->save($book);
+        $author->books()->save($book);
+        $author->save();
+        $this->assertEquals(1, $author->books()->count());
+    }
+
 }