upcabarcodetest.java

这是个国外JAVA爱好者写的条形码生成器

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 * All rights reserved.
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 *
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 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
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package net.sourceforge.barbecue.linear.upc;

import junit.framework.TestCase;
import net.sourceforge.barbecue.Barcode;
import net.sourceforge.barbecue.BarcodeException;
import net.sourceforge.barbecue.BlankModule;
import net.sourceforge.barbecue.GraphicsMock;
import net.sourceforge.barbecue.Module;
import net.sourceforge.barbecue.SeparatorModule;

import java.text.CharacterIterator;
import java.text.StringCharacterIterator;
import java.util.List;
import java.awt.*;

public class UPCABarcodeTest extends TestCase {
    private UPCAMock b;
    
    protected void setUp() throws Exception {
        super.setUp();
        b = new UPCAMock("075678164125");
    }
    
    public void testInvalidCharactersThrowsException() throws Exception {
        try {
            new UPCABarcode("A12345678901");
            fail();
        } catch(BarcodeException e) {
        }
        try {
            new UPCABarcode(null);
            fail();
        } catch(java.lang.IllegalArgumentException e) {
        }
    }
    
    public void testInvalidLengthThrowsException() throws Exception {
        try {
            new UPCABarcode("1234567890");
            fail();
        } catch(BarcodeException e) {
        }
        try {
            new UPCABarcode("");
            fail();
        } catch(BarcodeException e) {
        }
    }
    
    public void testPreAmble() throws Exception {
        assertEquals(new Module(new int[] {1, 1, 1}), b.getPreAmble());
    }
    
    public void testCentreGuard() throws Exception {
        assertEquals(new Module(new int[] {0, 1, 1, 1, 1, 1}), b.getCentreGuard());
    }
    
    public void testPostAmble() throws Exception {
        assertEquals(new Module(new int[] {1, 1, 1}), b.getPostAmble());
    }
    
    public void testCheckDigitCalculatedUsingMod10() throws Exception {
        // check the mod 10 checksum for '327743000426'
        assertEquals("6", String.valueOf(UPCABarcode.getMod10CheckDigit("32774300042")));
        
        // check the mod 10 checksum for '075678164125'
        assertEquals("5", String.valueOf(UPCABarcode.getMod10CheckDigit("07567816412")));
        
        // check the mod 10 checksum for '870700000026'
        assertEquals("6", String.valueOf(UPCABarcode.getMod10CheckDigit("87070000002")));
    }
    
    private class UPCAMock extends UPCABarcode {
        public UPCAMock(String data) throws BarcodeException {
            super(data);
        }
        
        public String getLabel() {
            return super.getLabel();
        }
        
        public Module getPostAmble() {
            return super.getPostAmble();
        }
        
        public Module getPreAmble() {
            return super.getPreAmble();
        }
    }
}