Yii Can't Include Files

When I run the command yiic test test, I get the following error and backtrace:

PHP Error[2]: include(Test.php): failed to open stream: No such file or directory
    in file /var/www/yii/framework/YiiBase.php at line 421
#0 /var/www/yii/framework/YiiBase.php(421): autoload()
#1 unknown(0): autoload()
#2 /var/www/inviso/protected/commands/TestCommand.php(4): spl_autoload_call()
#3 unknown(0): TestCommand->actionTest()
#4 /var/www/yii/framework/console/CConsoleCommand.php(172): ReflectionMethod->invokeArgs()
#5 /var/www/yii/framework/console/CConsoleCommandRunner.php(67): TestCommand->run()
#6 /var/www/yii/framework/console/CConsoleApplication.php(91): CConsoleCommandRunner->run()
#7 /var/www/yii/framework/base/CApplication.php(169): CConsoleApplication->processRequest()
#8 /var/www/yii/framework/yiic.php(33): CConsoleApplication->run()
#9 /var/www/inviso/protected/yiic.php(7): require_once()
#10 /var/www/inviso/protected/yiic(4): require_once()

The TestCommand.php (located in protected/commands/) file looks like this:

<?php
class TestCommand extends CConsoleCommand {
  public function actionTest() {
    $test = new Test;
}

And my Test.php (located in protected/components/) file looks like this:

<?php
class Test {
}

My config has these lines:

   'import'=>array(
        'application.models.*',
        'application.components.*',
    )

What's causing the problem?