/** * test load config */ public function testSaveConfig() { $configData = $this->_json->loadConfig(); // add something to config $configData['test'] = 'value'; $this->_json->saveConfig($configData); // load $result = $this->_json->loadConfig(); // check $this->assertTrue(isset($result['test'])); $this->assertEquals('value', $result['test']); $this->assertEquals($configData['database'], $result['database']); }