public function testGetSaveButtonHtml() { $expected = 'element_html_code'; $this->_layoutMock->expects($this->once())->method('getChildName')->with(null, 'save_button')->will($this->returnValue('test_child_name')); $this->_layoutMock->expects($this->once())->method('renderElement')->with('test_child_name')->will($this->returnValue('element_html_code')); $this->assertEquals($expected, $this->_object->getSaveButtonHtml()); }