/**
  * @param InterfaceUsage $interface
  */
 public function addInterfaceUsage(InterfaceUsage $interface)
 {
     if (!isset($this->interfaceUsages[$interface->className()])) {
         $this->interfaceUsages[$interface->className()] = array();
     }
     $this->interfaceUsages[$interface->className()][] = $interface;
 }
 public function testGetLineNumber()
 {
     $interfaceUsage = new InterfaceUsage('interface', 'class', 0);
     $this->assertSame(0, $interfaceUsage->getLineNumber());
 }