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// Copyright (C) 2006-2016 Talend Inc. - www.talend.com
//
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// %InstallDIR%\features\org.talend.rcp.branding.%PRODUCTNAME%\%PRODUCTNAME%license.txt
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package org.talend.dataquality.datamasking.functions;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;

import java.util.Random;

import org.junit.Test;

/**
 * created by jgonzalez on 30 juin 2015 Detailled comment
 *
 */
public class ReplaceFirstCharsIntegerTest {

    private int output;

    private int input = 123456;

    private ReplaceFirstCharsInteger rfci = new ReplaceFirstCharsInteger();

    @Test
    public void testGood() {
        rfci.parse("3", false, new Random(42));
        output = rfci.generateMaskedRow(input);
        assertEquals(830456, output); // $NON-NLS-1$
    }

    @Test
    public void testDummyGood() {
        rfci.parse("154", false, new Random(42));
        output = rfci.generateMaskedRow(input);
        assertEquals(830807, output); // $NON-NLS-1$
    }

    @Test
    public void testDummyGood2() {
        rfci.parse("0", false, new Random(42));
        output = rfci.generateMaskedRow(input);
        assertEquals(input, output); // $NON-NLS-1$
    }

    @Test
    public void testWrongParameter() {
        try {
            rfci.parse("j", false, new Random(42));
            fail("should get exception with input " + rfci.parameters); //$NON-NLS-1$
        } catch (Exception e) {
            assertTrue("expect illegal argument exception ", e instanceof IllegalArgumentException); //$NON-NLS-1$
        }
        output = rfci.generateMaskedRow(input);
        assertEquals(0, output); // $NON-NLS-1$
    }

}