使用 Zend 测试设置 PHPUnit

I'm trying to start using PHPUnit with Zend Test for my Zend Framework application. I'm able to run the PHPUnit command from command line phpunit --configuration phpunit.xml. I've tried following this tutorial which is based off of Matthew Weier O'Phinney's blog post. I'm getting an error when PHPUnit tries to write the log file. Here's my phpunit.xml

<phpunit bootstrap="./Bootstrap.php" colors="true">
    <testsuite name="Zend Framework Tests">
        <directory>./</directory>
    </testsuite>
    <!-- Optional filtering and logging settings -->
    <filter>
        <whitelist>
            <directory suffix=".php">../library/</directory>
            <directory suffix=".php">../application/</directory>
            <exclude>
                <directory suffix=".phtml">../application/</directory>
            </exclude>
        </whitelist>
    </filter>
    <logging>
        <log type="coverage-html" target="./log/report" charset="UTF-8" yui="true" highlight="true" lowUpperBound="50" highLowerBound="80"/>
        <log type="testdox-html" target="./log/testdox.html"/>
    </logging>
</phpunit>

我的测试引导程序:

<?php
//Set app paths and environment
define('BASE_PATH', realpath(dirname(__FILE__) . '/../'));
define('APPLICATION_PATH', BASE_PATH . '/application');
define('TEST_PATH', BASE_PATH . '/tests');
define('APPLICATION_ENV', 'testing');
//Set include path
set_include_path('.' . PATH_SEPARATOR . BASE_PATH . '/library' . PATH_SEPARATOR . get_include_path());
//Set the default timezone
date_default_timezone_set('America/Chicago');
?>

还有我希望我的测试控制器扩展的 ControllerTestCase:

<?php
require_once 'Zend/Application.php';
require_once 'Zend/Test/PHPUnit/ControllerTestCase.php';

abstract class ControllerTestCase extends Zend_Test_PHPUnit_ControllerTestCase
{
    public $_application;

    public function setUp()
    {
        //Override the parent to solve an issue with not finding the correct module
        $this->bootstrap = new Zend_Application(
            APPLICATION_ENV, 
            APPLICATION_PATH . '/configs/application.ini'
        );
        parent::setUp();
    }
}
?>

<?php
/*
 * Start output buffering
 */
ob_start();

/*
 * Set error reporting to the level to which code must comply.
 */
error_reporting( E_ALL | E_STRICT );

/*
 * Set default timezone
 */
date_default_timezone_set('GMT');

/*
 * Testing environment
 */
define('APPLICATION_ENV', 'testing');

/*
 * Determine the root, library, tests, and models directories
 */
$root        = realpath(dirname(__FILE__) . '/../');
$library     = $root . '/library';
$tests       = $root . '/tests';
$models      = $root . '/application/models';
$controllers = $root . '/application/controllers';

/*
 * Prepend the library/, tests/, and models/ directories to the
 * include_path. This allows the tests to run out of the box.
 */
$path = array(
    $models,
    $library,
    $tests,
    get_include_path()
);
set_include_path(implode(PATH_SEPARATOR, $path));

/**
 * Register autoloader
 */
require_once 'Zend/Loader.php';
Zend_Loader::registerAutoload();

/**
 * Store application root in registry
 */
Zend_Registry::set('testRoot', $root);
Zend_Registry::set('testBootstrap', $root . '/application/bootstrap.php');

/*
 * Unset global variables that are no longer needed.
 */
unset($root, $library, $models, $controllers, $tests, $path);

require_once 'Zend/Loader/Autoloader.php';
Zend_Loader_Autoloader::getInstance();

<?php

// Define path to application directory
defined('APPLICATION_PATH')
    || define('APPLICATION_PATH', realpath(dirname(__FILE__) . '/../application'));

// Define application environment
defined('APPLICATION_ENV')
    || define('APPLICATION_ENV', (getenv('APPLICATION_ENV') ? getenv('APPLICATION_ENV') : 'testing'));

// Ensure library/ is on include_path
set_include_path(implode(PATH_SEPARATOR, array(
    realpath(APPLICATION_PATH . '/../library'),
    get_include_path(),
)));

require_once 'Zend/Loader/Autoloader.php';
Zend_Loader_Autoloader::getInstance();

<phpunit bootstrap="./bootstrap.php" colors="true">
    <testsuite name="Application Test Suite">
        <directory>./application</directory>
    </testsuite>
    <testsuite name="Library Test Suite">
        <directory>./library</directory>
    </testsuite>

    <filter>
        <whitelist>
            <directory suffix=".php">../../library</directory>
            <directory suffix=".php">../../application</directory>
            <exclude>
                <directory suffix=".php">../../library/Zend</directory>
            </exclude>
        </whitelist>
    </filter>
</phpunit>