I am trying to use PHPUnit testing with **Laravel 5.2.10**. I have **PHPUnit 5.1.4** installed locally within my project.

When I run:

```
phpunit

```

PHPUnit runs all tests in my `test` directory perfectly.

However, when I run:

```
phpunit tests/unit/testThatFails.php

```

I get:

```
PHP Fatal error:  Class 'PHPUNIT_Framework_TestCase' not found in ...

```

The strange thing is that when I run phpunit it is succesfully running every test in the test directory, including this `testThatFails.php` just fine.

**Why does it break when I try to run just one test?**

**Update:**  

Here is my `phpunit.xml`:

```
<?xml version="1.0" encoding="UTF-8"?>
<phpunit backupGlobals="false"
         backupStaticAttributes="false"
         bootstrap="bootstrap/autoload.php"
         colors="true"
         convertErrorsToExceptions="true"
         convertNoticesToExceptions="true"
         convertWarningsToExceptions="true"
         processIsolation="false"
         stopOnFailure="false">
    <testsuites>
        <testsuite name="Application Test Suite">
            <directory>./tests/</directory>
        </testsuite>
    </testsuites>
    <filter>
        <whitelist>
            <directory suffix=".php">app/</directory>
        </whitelist>
    </filter>
    <php>
        <env name="APP_ENV" value="testing"/>
        <env name="CACHE_DRIVER" value="array"/>
        <env name="SESSION_DRIVER" value="array"/>
        <env name="QUEUE_DRIVER" value="sync"/>
    </php>
</phpunit>

```

**Update:**  

For now, since I am using Laravel, I am **circumventing** this issue by extending `TestCase` rather than `PHPUNIT_Framework_TestCase`, and my tests are able to run as expected. However, this is just a **circumvention** and not a **solution**. (It is also strange to me that this works given the fact that `TestCase` itself does ultimately extend from `PHPUNIT_Framework_TestCase`.