test/jdk/java/awt/datatransfer/SystemFlavorMap/InvalidMapArgumentsTest.java

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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * accompanied this code).
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import java.awt.datatransfer.DataFlavor;
import java.awt.datatransfer.SystemFlavorMap;

/*
 * @test
 * @summary To check for error handling with new Clipboard/SystemFlavorMap
 *          methods, and insure that the appropriate exceptions are being thrown.
 *          Specifically check for null variables in the methods:
 *          - addFlavorForUnencodedNative(String nat, DataFlavor flav)
 *          - addUnencodedNativeForFlavor(DataFlavor flav, String nat)
 *          - setNativesForFlavor(DataFlavor flav, String[] natives)
 *          - setFlavorsForNative(String nat, DataFlavor[] flavors)
 * @author Rick Reynaga (rick.reynaga@eng.sun.com) area=Clipboard
 * @modules java.datatransfer
 * @run main InvalidMapArgumentsTest
 */

public class InvalidMapArgumentsTest {

    SystemFlavorMap flavorMap;
    String test_nat;
    String[] test_natives;
    DataFlavor test_flav;
    DataFlavor[] test_flavors;

    public static void main (String[] args){
        new InvalidMapArgumentsTest().doTest();
    }

    public void doTest (){
        //Get things going.  Request focus, set size, et cetera
        initMappings();

        // Test for combinations of null values for
        // addFlavorForUnencodedNative(String nat, DataFlavor flav)
        addFlavorForUnencodedNativeTest(null, null, "both String nat and DataFlavor flav set to null. ");
        addFlavorForUnencodedNativeTest(null, test_flav, "String nat set to null. ");
        addFlavorForUnencodedNativeTest(test_nat, null, "DataFlavor flav set to null. ");


        // Test for combinations of null values for
        // addUnencodedNativeForFlavor(DataFlavor flav, String nat)
        addUnencodedNativeForFlavorTest(null, null, "both DataFlavor flav and String nat set to null. ");
        addUnencodedNativeForFlavorTest(null, test_nat, "DataFlavor flav set to null. ");
        addUnencodedNativeForFlavorTest(test_flav, null, "String nat set to null. ");


        // Test for combinations of null values for
        // setNativesForFlavor(DataFlavor flav, String[] natives)
        setNativesForFlavorTest(null, null, "both DataFlavor flav and String[] natives set to null. ");
        setNativesForFlavorTest(null, test_natives, "DataFlavor flav set to null. ");
        setNativesForFlavorTest(test_flav, null, "String[] natives set to null. ");


        // Test for combinations of null values for
        // setFlavorsForNative(String nat, DataFlavor[] flavors)
        setFlavorsForNativeTest(null, null, "both String nat and DataFlavor[] flavors set to null. ");
        setFlavorsForNativeTest(null, test_flavors, "String nat set to null. ");
        setFlavorsForNativeTest(test_nat, null, "DataFlavor[] flavors set to null. ");
    }

    public void initMappings() {
        //initialize mapping variables used in this test
        flavorMap = (SystemFlavorMap)SystemFlavorMap.getDefaultFlavorMap();

        //create a DataFlavor with valid parameters (mimeType, humanPresentableName)
        test_flav = new DataFlavor("text/plain; charset=ascii","ASCII Flavor");

        //create a String native
        test_nat = "TEXT_TEST";

        //create a DataFlavor array
        test_flavors = new DataFlavor[] {test_flav};

        //create a String native array
        test_natives = new String[] {test_nat};
    }

    public void setNativesForFlavorTest(DataFlavor flav, String[] natives, String errmsg) {
        try{
            flavorMap.setNativesForFlavor(flav, natives);
            throw new RuntimeException("NullPointerException is not thrown for method "+
                    "setNativesForFlavor with "+errmsg);
        } catch (NullPointerException  e) {
        }
    }

    public void setFlavorsForNativeTest(String nat, DataFlavor[] flavors, String errmsg) {
        try{
            flavorMap.setFlavorsForNative(nat, flavors);
            throw new RuntimeException("NullPointerException is not thrown for method "+
                    "setFlavorsForNative with "+errmsg);
        } catch (NullPointerException  e) {
        }
    }

    public void addFlavorForUnencodedNativeTest(String nat, DataFlavor flav, String errmsg) {
        try{
            flavorMap.addFlavorForUnencodedNative(nat, flav);
            throw new RuntimeException("NullPointerException is not thrown for method "+
                    "addFlavorForUnencodedNative with "+errmsg);
        } catch (NullPointerException  e) {
        }
    }

    public void addUnencodedNativeForFlavorTest(DataFlavor flav, String nat, String errmsg) {
        try{
            flavorMap.addUnencodedNativeForFlavor(flav, nat);
            throw new RuntimeException("NullPointerException is not thrown for method "+
                    "addUnencodedNativeForFlavor with "+errmsg);
        } catch (NullPointerException  e) {
        }
    }
}