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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 KeepLastCharsLongTest {

    private long output;

    private long input = 123456L;

    private KeepLastCharsLong klag = new KeepLastCharsLong();

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

    @Test
    public void testDummyGood() {
        klag.parse("7", false, new Random(42));
        output = klag.generateMaskedRow(input);
        assertEquals(input, output);
    }

    @Test
    public void testParameter() {
        klag.parse("3,8", false, new Random(42));
        output = klag.generateMaskedRow(input);
        assertEquals(888456L, output);
    }

    @Test
    public void testWrongParameter() {
        try {
            klag.parse("3,r", false, new Random(42));
            fail("should get exception with input " + klag.parameters); //$NON-NLS-1$
        } catch (Exception e) {
            assertTrue("expect illegal argument exception ", e instanceof IllegalArgumentException); //$NON-NLS-1$
        }
        output = klag.generateMaskedRow(input);
        assertEquals(0L, output);
    }
}