getArgumentNames() public method

Returns the names of all arguments contained in this object
public getArgumentNames ( ) : array
return array Argument names
 /**
  * @test
  */
 public function getArgumentNamesReturnsNamesOfAddedArguments()
 {
     $arguments = new Arguments();
     $arguments->addNewArgument('first');
     $arguments->addNewArgument('second');
     $arguments->addNewArgument('third');
     $expectedArgumentNames = ['first', 'second', 'third'];
     $this->assertEquals($expectedArgumentNames, $arguments->getArgumentNames(), 'Returned argument names were not as expected.');
 }