scopeConfigMock = $this->getMockBuilder(ScopeConfigInterface::class) ->getMockForAbstractClass(); $this->model = new Robots( $this->scopeConfigMock ); } /** * Check general logic of getData() method */ public function testGetData() { $customInstructions = 'custom_instructions'; $this->scopeConfigMock->expects($this->once()) ->method('getValue') ->with( 'design/search_engine_robots/custom_instructions', ScopeInterface::SCOPE_WEBSITE ) ->willReturn($customInstructions); $this->assertEquals($customInstructions, $this->model->getData()); } }