CamelCase and more tests.

tests/FieldDefinitionTest.php

@@ -2,12 +2,32 @@
 
 namespace Frs\Tests;
 
+use \Frs\FieldDefinition;
 #use \PHPUnit\Framework\TestCase;
 
 class FieldDefinitionTest extends \PHPUnit_Framework_TestCase
 {
-    public function testTrue()
+    public function testLoading()
     {
-        $this->assertTrue(true);
+        $fdo = new FieldDefinition('hotel');
+        $fd  = $fdo->getFieldData();
+        $this->assertArraySubset(array('groups'=>array(), 'fields'=>array()), $fd);
+    }
+
+    /**
+     * @expectedException \Exception
+     * @expectedExceptionMessage File definitions/doesnotexist.json not found!
+     */
+    public function testLoadingFailure()
+    {
+        $fdo = new FieldDefinition('doesnotexist');
+    }
+
+    public function testGroups()
+    {
+        $fdo = new FieldDefinition('hotel');
+        $byGroup = $fdo->getGroups();
+        $this->assertArrayHasKey('Hotel Information', $byGroup);
+        $this->assertArrayHasKey('Metadata', $byGroup);
     }
 }