SimpleTest：如何断言抛出PHP错误？

Question

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?

Answer 1

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);
}