Oil test raises uncaught exception - php

Question

I'm wandering a jungle of "php oil test" command for few days.
I installed phpunit via pear in windows7.
After the installation, When I execute "php oil test" command, following error occurs.
> php oil test
Uncaught exception Oil\Exception: PHPUnit does not appear to be installed.
However, it looks phpunit is installed correctly because "phpunit --version" command works fine(refer following).
>phpunit --version
PHPUnit 4.0.14 by Sebastian Bergmann.
Of course, "pear list" command shows PHPUnit package.
>pear list
INSTALLED PACKAGES, CHANNEL PEAR.PHPUNIT.DE:
PACKAGE VERSION STATE
File_Iterator 1.2.3 stable
PHPUnit 4.0.14 stable
PHPUnit_SkeletonGenerator 1.2.1 stable
PHP_CodeCoverage 1.0.2 stable
PHP_Timer 1.0.0 stable
PHP_TokenStream 1.2.2 stable
Text_Template 1.2.0 stable
I tried some way listed following page, but cannot still resolve.
Installing PHPUnit via PEAR
Could anyone pl give some advice to run "php oil test" command w/o error?
Any advice is welcomed!!
add my code.
/fuel/core/classes/testcase.php
namespace Fuel\Core;
class TestCase extends \PHPUnit_Framework_TestCase { }
/fuel/app/tests/controller_testcase.php
use Fuel\Core\Log;
use Fuel\Core\DBUtil;
use Fuel\Core\DB;
use Fuel\Core\TestCase;
use Fuel\Core\Config;
use Fuel\Core\Request;
class ControllerTestCase extends TestCase {
public function setUp() {
..
php is installed C:\php and pear.bat & phpunit.bat are also there.
PHPUnit folder does not exist in C:\php\pear folder.

Answer 1

Oil uses the configuration key "oil.phpunit.autoload_path" to find the location of PHPUnit autoloader, and if not defined, it uses "PHPUnit/Autoload.php", in combination with the defined PHP include paths.
It then attempts to include this file, and checks if the class "PHPUnit_Framework_TestCase" is available. If not, it bails out with the error message you see.
It has nothing to do with the PHPUnit binary, which is located using the defined path.
This simply means the location where PHPunit is installed is not in PHP's search paths, and no custom path is configured.