我是新的phpspec,并试图创建虚拟转换器用于学习目的,但我坚持调用非目标错误的成员函数
这是我的代码:
Conver类
private $supportedFormats = ['xml', 'json'];
private $handler;
public function __construct(ConvertHandler $handler)
{
$this->handler = $handler;
}
public function convert(array $data, $format)
{
if (!$this->shlouldBeSupportedFormat($format)) {
throw new \Exception();
}
$converter = $this->handler->getConverter($format);
return $converter->convert($data);
}
public function shlouldBeSupportedFormat($format)
{
if (!in_array($format, $this->supportedFormats)) {
return false;
}
return true;
}
ConvertHandler类
public function getConverter($format)
{
$class = "AppBundle\Service\Converter\\".ucfirst($format).'Converter';
if (class_exists($class)) {
return new $class();
} else {
throw new \Exception();
}
}
XmlConverter类
public function convert(array $data)
{
return str_replace(PHP_EOL, '', TypeConverter::toXml($data));
}
此代码正常运行。它以XML格式返回字符串。
现在测试:
ConvertSpec类
function let(ConvertHandler $handler) {
$this->beConstructedWith($handler);
}
function its_convert_function_should_be_valid()
{
$this->shouldThrow('Exception')->during('convert', ['sadsa','xml']);
$this->shouldThrow('Exception')->during('convert', [[],'bad_format']);
}
function it_should_check_if_support()
{
$this->shlouldBeSupportedFormat('xml')->shouldReturn(true);
$this->shlouldBeSupportedFormat('bad_format')->shouldReturn(false);
}
function it_should_covert_to_xml(ConvertHandler $handler)
{
$this->convert(['test' => 'test'], 'xml')->shouldBeString();
$handler->getConverter('xml')->shouldBeCalled();
}
ConvertHandlerSpec类
function its_get_converter_shouldBe_valid()
{
$this->shouldThrow('Exception')->during('getConverter', ['wrong_format']);
}
function it_should_return_converter()
{
$this->getConverter('xml')->shouldReturnAnInstanceOf('AppBundle\Service\Converter\XmlConverter');
}
XmlConverterSpec类
function it_should_implement()
{
$this->shouldImplement('AppBundle\Service\Converter\ConverterInterface');
}
function it_should_convert()
{
$this->convert(['test'=>'test'])->shouldBeString();
$this->convert(['test'=>'test'])->shouldReturn(
'<?xml version="1.0" encoding="utf-8"?><root><test>test</test></root>'
);
}
运行测试时出错: PHP致命错误:在第25行的/var/www/phpSpecTest/src/AppBundle/Service/Convert.php中调用非对象的成员函数convert()
我已经尝试第二天修复它,并在网上寻找解决方案。但仍无法找到解决方案。任何建议都将受到赞赏。
答案 0 :(得分:4)
您尚未在>>> df
col1 col2 col3
0 1 10 100
1 2 20 200
2 3 30 300
3 4 40 400
4 5 50 500
5 6 60 600
>>> arr2D = np.column_stack((df['col1'],df['col2'],df['col1'],df['col3']))
>>> out_list = np.vsplit(arr2D.reshape(-1,2),arr2D.shape[0])
>>> print out_list
[array([[ 1, 10],
[ 1, 100]]), array([[ 2, 20],
[ 2, 200]]), array([[ 3, 30],
[ 3, 300]]), array([[ 4, 40],
[ 4, 400]]), array([[ 5, 50],
[ 5, 500]]), array([[ 6, 60],
[ 6, 600]])]
规范方法中模仿ConverterHandler->getConverter()
方法。应该是这样的:
let