Php 带有回调参数的Mocking方法
我试图模仿这种方法:Php 带有回调参数的Mocking方法,php,unit-testing,mocking,phpunit,mockery,Php,Unit Testing,Mocking,Phpunit,Mockery,我试图模仿这种方法: $transformer = $this->transformerFactory->createProductTransformer($product, function (ProductInterface $product) use ($discount) { $product->setDiscount($discount); }); 它接受回调参数作为第二个参数,我不知道如何模拟它 我使用的是嘲弄,看起来是这样的: $this->tra
$transformer = $this->transformerFactory->createProductTransformer($product, function (ProductInterface $product) use ($discount) {
$product->setDiscount($discount);
});
它接受回调参数作为第二个参数,我不知道如何模拟它
我使用的是嘲弄,看起来是这样的:
$this->transformerFactoryMock
->shouldReceive('createProductTransformer')
->with(???) // here!
如果我将相同的回调传递给with()方法,则实例不匹配。
如果mockry不支持,我不介意使用PHPUnit mocking。如果“相同的回调”意味着相同的代码,那么它就不是PHP的相同回调,因此mockry不会接受它
var_dump(function () {} === function () {}); // false
$func = function () {};
var_dump($func === $func); // true
要检查回调类型,可以使用mockry::type方法(带有参数“closure”),为了更精确地检查,可以使用mockry::on 很难从粘贴的代码片段中准确地说出您要在测试文件中执行的操作,但是您可以模拟闭包及其参数。下面是一个快速/肮脏/未经测试的示例,它是您试图实现的最佳猜测:
class Transformer {
protected transformerFactory;
public function __construct($factory) {
$this->transformerFactory = $factor;
}
public function doSomething(Discount $discount, ProductInterface $product) {
return $this->transformerFactory->createProductTransformer($product, function($product) use ($discount) {
$product->setDiscount($discount);
});
}
}
class TransformerTest {
protected function makeTransformerWithFakeFactory()
{
$fakeFactory = \Mockery::mock('TransformerFactory');
$transformer = new Transformer($fakeFactory);
return array($tranformer, $fakeFactory);
}
protected function fakeDiscount()
{
return \Mockery::mock('Discount');
}
protected function fakeProduct()
{
return \Mocker::mock('ProductInterface');
}
// first let's test to make sure that the factory's correct method is called with correct parameters
function test_doSomething_WhenPassedProduct_CallsCreateProductTransformerOnFactoryWithProductAndClosure()
{
list($transformer, $mockFactory) = $this->makeTransformerWithFakeFactory();
$fakeDiscount = $this->fakeDiscount();
$fakeProduct = $this->fakeProduct();
$mockFactory->shouldReceive('createProductTransformer')->once()->with($fakeProduct, \Mockery::type('Closure'));
$transfomer->doSomething($fakeDiscount, $fakeProduct);
}
// now, let's test to make sure that the $discount within the closure is called with the right method and params
function test_doSomething_createProductTransformerCalledWithProductAndClosure_CallsSetDiscountOnProductWithDiscount()
{
list($transformer, $stubFactory) = $this->makeTransfomerWithFakeFactory();
$fakeDiscount = $this->fakeDiscount();
$mockProduct = $this->fakeProduct();
$stubFactory->shouldReceive('createProductTransfomer')->passthru();
$mockProduct->shouldReceive('setDiscount')->once()->with($fakeDiscount);
$transfomer->doSomething($fakeDiscount, $mockProduct);
}
// now lets make sure that doSomething returns what the call to factory's createProductTransformer method returns
function test_doSomething_createProductTransformerCalledWithProductAndClosureReturnsValue_ReturnsSameValue()
{
list($transformer, $stubFactory) = $this->makeTransfomerWithFakeFactory();
$fakeDiscount = $this->fakeDiscount();
$fakeProduct = $this->fakeProduct();
$stubFactory->shouldReceive('createProductTransfomer')->andReturn('transformed result');
$result = $transfomer->doSomething($fakeDiscount, $fakeProduct);
$this->assertEquals('transformed result', $result);
}
}
如果您需要准确地检查是否调用了回调,那么这是不可能的,因为每个
\Closure
实例都是唯一的,并且在您测试的方法中创建了一个新实例
但下一步你可以做:
1) 验证类型的动态参数
// Assume in test case you have these mock/stub
$discount;
$product;
$transformerFactoryMock = \Mockery::mock('TransformerFactory')
->shouldReceive('createProductTransformer')
->with($product, \Mockery::type(\Closure::class))
2) 检查所有隐藏的参数(在测试方法中调用模拟方法之前创建)
3) 最后,使用传递给mock方法的回调来伪造结果
// then mock will be
$transformerFactoryMock = \Mockery::mock('TransformerFactory')
->shouldReceive('createProductTransformer')
->andReturnUsing(function($closure) {
// execute closure
$closure();
// any logic to fake return
return;
})
检查和的文件
// then mock will be
$transformerFactoryMock = \Mockery::mock('TransformerFactory')
->shouldReceive('createProductTransformer')
->andReturnUsing(function($closure) {
// execute closure
$closure();
// any logic to fake return
return;
})