public function testForNotImportedNamespace()
 {
     $mediaWikiNsContentReader = $this->getMockBuilder('\\SMW\\MediaWiki\\MediaWikiNsContentReader')->disableOriginalConstructor()->getMock();
     $mediaWikiNsContentReader->expects($this->atLeastOnce())->method('read')->will($this->returnValue(''));
     $instance = new ControlledVocabularyImportContentFetcher($mediaWikiNsContentReader);
     $this->assertFalse($instance->contains('Foo'));
     $this->assertEmpty($instance->fetchFor('Foo'));
 }
 /**
  * @return array|null
  */
 private function tryToSplitByNamespaceSection($value)
 {
     if (strpos($value, ':') === false) {
         $this->errors[] = array('smw-datavalue-import-invalidvalue', $value);
         return null;
     }
     list($namespace, $section) = explode(':', $value, 2);
     // Check that elements exists for the namespace
     if (!$this->controlledVocabularyImportContentFetcher->contains($namespace)) {
         $this->errors[] = array('smw-datavalue-import-unknownns', $namespace);
         return null;
     }
     return array($namespace, $section);
 }