public function testSettersGetters() { $setElementRenderer = $this->getMockBuilder('Magento\\Backend\\Block\\Widget\\Form\\Renderer\\Element')->disableOriginalConstructor()->getMock(); // note: this results in setting a static variable in the Form class $this->_form->setElementRenderer($setElementRenderer); $getElementRenderer = $this->_form->getElementRenderer(); $this->assertSame($setElementRenderer, $getElementRenderer); // restore our Form to its earlier state $this->_form->setElementRenderer(null); $setFieldsetRenderer = $this->getMockBuilder('Magento\\Backend\\Block\\Widget\\Form\\Renderer\\Fieldset')->disableOriginalConstructor()->getMock(); $this->_form->setFieldsetRenderer($setFieldsetRenderer); $getFieldsetRenderer = $this->_form->getFieldsetRenderer(); $this->assertSame($setFieldsetRenderer, $getFieldsetRenderer); $setFieldsetElementRenderer = $this->getMockBuilder('Magento\\Backend\\Block\\Widget\\Form\\Renderer\\Fieldset')->disableOriginalConstructor()->getMock(); $this->_form->setFieldsetElementRenderer($setFieldsetElementRenderer); $getFieldsetElementRenderer = $this->_form->getFieldsetElementRenderer(); $this->assertSame($setFieldsetElementRenderer, $getFieldsetElementRenderer); $this->assertSame($this->_form->getHtmlAttributes(), ['id', 'name', 'method', 'action', 'enctype', 'class', 'onsubmit', 'target']); $this->_form->setFieldContainerIdPrefix('abc'); $this->assertSame($this->_form->getFieldContainerIdPrefix(), 'abc'); $result = $this->_form->addSuffixToName('123', 'abc'); $this->assertSame($result, 'abc[123]'); }