How to test user input with strategy pattern in java. Simple code

I created strategy for taking input because I want to test it.

This is my production code for taking input:

    //strategy pattern
public interface BarcodeScannerInput {
public String getBarcode();
public int getBarcodeType();
}

//taking input from user (barcode and type)
class TakeInput implements BarcodeScannerInput {
private String barcode;
private int barcodeType;

public String getBarcode(){
    System.out.println("Enter barcode: ");
    Scanner code = new Scanner(System.in);
    barcode=code.nextLine();
    return barcode;
}
public int getBarcodeType(){
    System.out.println("Enter type of barcode (1-2):");
    Scanner type = new Scanner(System.in);
    barcodeType = type.nextInt();
    return barcodeType;
}
}

And my question is: How should look class for testing this input in junit tests?