使用PHP SimpleTest进行测试

Question

I'm running into an error while trying to run some simple tests with SimpleTest for PHP .

Currently, I'm extending the class UnitTestCase as per the documentation. I'm trying to test different aspects of my class within a method. Here is my class:

<?php
class SimpleClass extends UnitTestCase {

    public function __construct() {
        $this->test();
    }

    private function test() {
        $x = true;
        $this->assertTrue($x, 'x is true');
    }
}

I've tried extending the TestSuite class and using the syntax in the documentation but I got the same error:

Fatal error: Call to a member function getDumper() on a non-object in /simpletest/test_case.php on line 316

Any ideas on how I could do this or am I approaching class testing wrong?

Answer 1

Don't use a constructor in your test!

SimpleTest allows you to create classes with methods. If their name starts with "test", it is automatically recognized as a testing method that will get called if you start the test suite.

You created a constructor which calls your test method, and does an assertion without all the setup taking place, so SimpleTest does not have a reporter class that is needed to wrap it's test findings into a nice output.

Read the tutorial more closely, and you'll find some hints on how to set up a test suite or how to start a single test:

Let us suppose we are testing a simple file logging class called Log in classes/log.php. We start by creating a test script which we will call tests/log_test.php and populate it as follows...

Code example adapted from the documentation:

<?php
require_once('simpletest/autorun.php');
require_once('../classes/log.php');

class TestOfLogging extends UnitTestCase {
    function testLogCreatesNewFileOnFirstMessage() {
        $this->assertTrue(true);
    }
}
?>

Note there is no constructor, and the autorun file will take care to run the test if this file is executed with PHP.