SimpleTest：如何断言抛出 PHP 错误？

发布于 2024-07-14 17:11:03 字数 465 浏览 6 评论 0原文

如果我是正确的，SimpleTest 将允许您断言抛出了 PHP 错误。但是，根据文档，我无法弄清楚如何使用它。我想断言传递给构造函数的对象是 MyOtherObject 的实例

class Object {
    public function __construct(MyOtherObject $object) {
        //do something with $object
    }
}

//...and in my test I have...
public function testConstruct_ExpectsAnInstanceOfMyOtherObject() {
    $notAnObject = 'foobar';
    $object = new Object($notAnObject);
    $this->expectError($object);
}

我哪里出错了？

原文

If I am correct, SimpleTest will allow you to assert a PHP error is thrown. However, I can't figure out how to use it, based on the documentation. I want to assert that the object I pass into my constructor is an instance of MyOtherObject

class Object {
    public function __construct(MyOtherObject $object) {
        //do something with $object
    }
}

//...and in my test I have...
public function testConstruct_ExpectsAnInstanceOfMyOtherObject() {
    $notAnObject = 'foobar';
    $object = new Object($notAnObject);
    $this->expectError($object);
}

Where am I going wrong?

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鲜血染红嫁衣 2024-07-21 17:11:03

类型提示会抛出 E_RECOVERABLE_ERROR，自 PHP 5.2 版起，SimpleTest 可以捕获该错误。以下内容将捕获包含文本“必须是……的实例”的任何错误。 PatternExpectation 的构造函数采用 perl 正则表达式。

public function testConstruct_ExpectsAnInstanceOfMyOtherObject() {
    $notAnObject = 'foobar';
    $this->expectError(new PatternExpectation("/must be an instance of/i"));
    $object = new Object($notAnObject);
}

Type hinting throws E_RECOVERABLE_ERROR which can be caught by SimpleTest since PHP version 5.2. The following will catch any error containing the text "must be an instance of". The constructor of PatternExpectation takes a perl regex.

public function testConstruct_ExpectsAnInstanceOfMyOtherObject() {
    $notAnObject = 'foobar';
    $this->expectError(new PatternExpectation("/must be an instance of/i"));
    $object = new Object($notAnObject);
}

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初见终念 2024-07-21 17:11:03

PHP 同时存在错误和异常，它们的工作方式略有不同。将错误的类型传递给类型提示函数将引发异常。你必须在你的测试用例中抓住这一点。例如：

public function testConstruct_ExpectsAnInstanceOfMyOtherObject() {
  $notAnObject = 'foobar';
  try {
    $object = new Object($notAnObject);
    $this->fail("Expected exception");
  } catch (Exception $ex) {
    $this->pass();
  }
}

或简单地：

public function testConstruct_ExpectsAnInstanceOfMyOtherObject() {
  $this->expectException();
  $notAnObject = 'foobar';
  $object = new Object($notAnObject);
}

但请注意，这将在发生异常的行之后停止测试。

PHP has both errors and exceptions, which work slightly different. Passing a wrong type to a typehinted function will raise an exception. You have to catch that in your test case. Eg.:

public function testConstruct_ExpectsAnInstanceOfMyOtherObject() {
  $notAnObject = 'foobar';
  try {
    $object = new Object($notAnObject);
    $this->fail("Expected exception");
  } catch (Exception $ex) {
    $this->pass();
  }
}

or simply:

public function testConstruct_ExpectsAnInstanceOfMyOtherObject() {
  $this->expectException();
  $notAnObject = 'foobar';
  $object = new Object($notAnObject);
}

But note that this will halt the test after the line where the exception occurs.

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