Webmozart\Console\Adapter\ArgsInput::hasArgument PHP Method

    public function hasArgument($name)
    {
        return $this->args ? $this->args->isArgumentDefined($name) : false;
    }

 public function testHasArgument()
 {
     $inputArgs = new ArgsInput($this->rawArgs, $this->args);
     $inputNoArgs = new ArgsInput($this->rawArgs);
     $this->args->setArguments(array('argument1' => 'value1'));
     $this->assertTrue($inputArgs->hasArgument('argument1'));
     $this->assertTrue($inputArgs->hasArgument('argument2'));
     $this->assertFalse($inputArgs->hasArgument('argument3'));
     $this->assertFalse($inputNoArgs->hasArgument('argument1'));
 }