TYPO3 Core

This also leads to an error message:

composer.json

{
    "repositories": [
        {
            "type": "composer",
            "url": "https://composer.typo3.org/" 
        }
    ],
    "require": {
        "typo3/cms": "7.4.0",
        "typo3-ter/news": "*" 
    },
    "require-dev": {
        "phpunit/phpunit": "~4.7.0" 
    },
    "config": {
        "bin-dir": "bin" 
    }
}

run phpunit

./bin/phpunit --bootstrap ./typo3/sysext/core/Build/UnitTestsBootstrap.php ./typo3conf/ext/news/Tests/Unit/

error message

Fatal error: Class 'TYPO3\CMS\Core\Tests\UnitTestCase' not found in /Users/mostwanted/Projects/_sandbox/MyProject/typo3conf/ext/news/Tests/Unit/Controller/NewsBaseControllerTest.php on line 26

This is the expected behavior since typo3/cms was pulled in as dependency, thus both autoload-dev and require-dev are ignored.

One can do composer create-project typo3/cms:7.4.0 instead which makes typo3/cms the root package.

Alternatively you have to copy/add all necessary autoload-dev and require-dev entries to your root composer.json. This is the way to go if you are trying to integrate tests into a TYPO3 extension.

See this blog entry for some insights.

When you use "require typo3/cms" instead of create-project, you may work around the missing dev Namespaces of the Core and its dev dependencies. Copy the require-dev and autoload-dev part from the core's composer.json to your root composer.json.

Looks like this: (Full list, you may run core unit tests with this)

{
  "repositories": [
    {
      "type": "composer",
      "url": "https://composer.typo3.org/" 
    }
  ],
  "require": {
    "typo3/cms": "7.4.0" 
  },
  "require-dev": {
    "phpunit/phpunit": "~4.7.0",
    "mikey179/vfsStream": "1.4.*@dev",
    "codeception/codeception": "~2.1.0" 
  },
  "config": {
    "bin-dir": "bin" 
  },
  "autoload-dev": {
    "psr-4": {
      "TYPO3\\CMS\\Backend\\Tests\\": "typo3/sysext/backend/Tests/",
      "TYPO3\\CMS\\Belog\\Tests\\": "typo3/sysext/belog/Tests/",
      "TYPO3\\CMS\\Beuser\\Tests\\": "typo3/sysext/beuser/Tests/",
      "TYPO3\\CMS\\Core\\Tests\\": "typo3/sysext/core/Tests/",
      "TYPO3\\CMS\\Dbal\\Tests\\": "typo3/sysext/dbal/Tests/",
      "TYPO3\\CMS\\Documentation\\Tests\\": "typo3/sysext/documentation/Tests/",
      "TYPO3\\CMS\\Extbase\\Tests\\": "typo3/sysext/extbase/Tests/",
      "TYPO3\\CMS\\Extensionmanager\\Tests\\": "typo3/sysext/extensionmanager/Tests/",
      "TYPO3\\CMS\\Felogin\\Tests\\": "typo3/sysext/felogin/Tests/",
      "TYPO3\\CMS\\Fluid\\Tests\\": "typo3/sysext/fluid/Tests/",
      "TYPO3\\CMS\\Form\\Tests\\": "typo3/sysext/form/Tests/",
      "TYPO3\\CMS\\Frontend\\Tests\\": "typo3/sysext/frontend/Tests/",
      "TYPO3\\CMS\\Impexp\\Tests\\": "typo3/sysext/impexp/Tests/",
      "TYPO3\\CMS\\IndexedSearch\\Tests\\": "typo3/sysext/indexed_search/Tests/",
      "TYPO3\\CMS\\Install\\Tests\\": "typo3/sysext/install/Tests/",
      "TYPO3\\CMS\\Lang\\Tests\\": "typo3/sysext/lang/Tests/",
      "TYPO3\\CMS\\Lowlevel\\Tests\\": "typo3/sysext/lowlevel/Tests/",
      "TYPO3\\CMS\\Mediace\\": "typo3/sysext/mediace/Classes/",
      "TYPO3\\CMS\\Mediace\\Tests\\": "typo3/sysext/mediace/Tests/",
      "TYPO3\\CMS\\Recordlist\\Tests\\": "typo3/sysext/recordlist/Tests/",
      "TYPO3\\CMS\\Reports\\Tests\\": "typo3/sysext/reports/Tests/",
      "TYPO3\\CMS\\Rsaauth\\Tests\\": "typo3/sysext/rsaauth/Tests/",
      "TYPO3\\CMS\\Saltedpasswords\\Tests\\": "typo3/sysext/saltedpasswords/Tests/",
      "TYPO3\\CMS\\Scheduler\\Tests\\": "typo3/sysext/scheduler/Tests/",
      "TYPO3\\CMS\\Sv\\Tests\\": "typo3/sysext/sv/Tests/",
      "TYPO3\\CMS\\Workspaces\\Tests\\": "typo3/sysext/workspaces/Tests/" 
    }
  }
}

If you want to run only tests of extensions you have to add any Namepsace from the extension's dependency (like Dbal, Fluid, Extbase...)

Mathias and Olivers suggested solution works. Thanks.

Still feels suboptimal. Would be great if this would not be necessary. Maybe typo3/sysext/core/Build/UnitTestsBootstrap.php could handle the autoloading of those classes in the future?

So I would still call it a missing feature that would bring a lot convenience.

Patch set 2 for branch master of project TYPO3CMS/Distributions/Base has been pushed to the review server.
It is available at http://review.typo3.org/43201