/**
  * Test that groups can be added to a fieldlist
  */
 public function testFieldgroup()
 {
     $fields = new FieldList();
     $tab = new Tab('Root');
     $fields->push($tab);
     $fields->addFieldsToTab('Root', array($group1 = new FieldGroup(new TextField('Name'), new EmailField('Email')), $group2 = new FieldGroup(new TextField('Company'), new TextareaField('Address'))));
     /* Check that the field objects were created */
     $this->assertNotNull($fields->dataFieldByName('Name'));
     $this->assertNotNull($fields->dataFieldByName('Email'));
     $this->assertNotNull($fields->dataFieldByName('Company'));
     $this->assertNotNull($fields->dataFieldByName('Address'));
     /* The field objects in the set should be the same as the ones we created */
     $this->assertSame($fields->dataFieldByName('Name'), $group1->fieldByName('Name'));
     $this->assertSame($fields->dataFieldByName('Email'), $group1->fieldByName('Email'));
     $this->assertSame($fields->dataFieldByName('Company'), $group2->fieldByName('Company'));
     $this->assertSame($fields->dataFieldByName('Address'), $group2->fieldByName('Address'));
     /* We'll have 2 fields directly inside the tab */
     $this->assertEquals(2, $tab->Fields()->Count());
 }