Package org.jfree.data

Examples of org.jfree.data.KeyedObjects

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    /**
     * Simple checks for the getObject(int) method.
     */
    public void testGetObject() {
        // retrieve an item
        KeyedObjects ko1 = new KeyedObjects();
        ko1.addObject("Key 1", "Object 1");
        ko1.addObject("Key 2", null);
        ko1.addObject("Key 3", "Object 2");
        assertEquals("Object 1", ko1.getObject(0));
        assertNull(ko1.getObject(1));
        assertEquals("Object 2", ko1.getObject(2));
       
        // request with a negative index
        boolean pass = false;
        try {
            ko1.getObject(-1);
        }
        catch (IndexOutOfBoundsException e) {
            pass = true;
        }
        assertTrue(pass);
       
        // request width index == itemCount
        pass = false;
        try {
            ko1.getObject(3);
        }
        catch (IndexOutOfBoundsException e) {
            pass = true;
        }
        assertTrue(pass);
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    /**
     * Simple checks for the getKey(int) method.
     */
    public void testGetKey() {
        // retrieve an item
        KeyedObjects ko1 = new KeyedObjects();
        ko1.addObject("Key 1", "Object 1");
        ko1.addObject("Key 2", null);
        ko1.addObject("Key 3", "Object 2");
        assertEquals("Key 1", ko1.getKey(0));
        assertEquals("Key 2", ko1.getKey(1));
        assertEquals("Key 3", ko1.getKey(2));
       
        // request with a negative index
        boolean pass = false;
        try {
            ko1.getKey(-1);
        }
        catch (IndexOutOfBoundsException e) {
            pass = true;
        }
        assertTrue(pass);
       
        // request width index == itemCount
        pass = false;
        try {
            ko1.getKey(3);
        }
        catch (IndexOutOfBoundsException e) {
            pass = true;
        }
        assertTrue(pass);
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    /**
     * Simple checks for the getIndex(Comparable) method.
     */
    public void testGetIndex() {
        KeyedObjects ko1 = new KeyedObjects();
        ko1.addObject("Key 1", "Object 1");
        ko1.addObject("Key 2", null);
        ko1.addObject("Key 3", "Object 2");
        assertEquals(0, ko1.getIndex("Key 1"));
        assertEquals(1, ko1.getIndex("Key 2"));
        assertEquals(2, ko1.getIndex("Key 3"));
       
        // check null argument
        boolean pass = false;
        try {
            ko1.getIndex(null);  
        }
        catch (IllegalArgumentException e) {
            pass = true;
        }
        assertTrue(pass);
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    /**
     * Confirm that cloning works.
     */
    public void testCloning() {
        KeyedObjects ko1 = new KeyedObjects();
        ko1.addObject("V1", new Integer(1));
        ko1.addObject("V2", null);
        ko1.addObject("V3", new Integer(3));
        KeyedObjects ko2 = null;
        try {
            ko2 = (KeyedObjects) ko1.clone();
        }
        catch (CloneNotSupportedException e) {
            System.err.println("Failed to clone.");
        }
        assertTrue(ko1 != ko2);
        assertTrue(ko1.getClass() == ko2.getClass());
        assertTrue(ko1.equals(ko2));
    }
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    /**
     * Check that inserting and retrieving values works as expected.
     */
    public void testInsertAndRetrieve() {

        KeyedObjects data = new KeyedObjects();
        data.addObject("A", new Double(1.0));
        data.addObject("B", new Double(2.0));
        data.addObject("C", new Double(3.0));
        data.addObject("D", null);

        // check key order
        assertEquals(data.getKey(0), "A");
        assertEquals(data.getKey(1), "B");
        assertEquals(data.getKey(2), "C");
        assertEquals(data.getKey(3), "D");

        // check retrieve value by key
        assertEquals(data.getObject("A"), new Double(1.0));
        assertEquals(data.getObject("B"), new Double(2.0));
        assertEquals(data.getObject("C"), new Double(3.0));
        assertEquals(data.getObject("D"), null);
        assertEquals(data.getObject("Not a key"), null);

        // check retrieve value by index
        assertEquals(data.getObject(0), new Double(1.0));
        assertEquals(data.getObject(1), new Double(2.0));
        assertEquals(data.getObject(2), new Double(3.0));
        assertEquals(data.getObject(3), null);

    }
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    /**
     * Serialize an instance, restore it, and check for equality.
     */
    public void testSerialization() {

        KeyedObjects ko1 = new KeyedObjects();
        ko1.addObject("Key 1", "Object 1");
        ko1.addObject("Key 2", null);
        ko1.addObject("Key 3", "Object 2");

        KeyedObjects ko2 = null;

        try {
            ByteArrayOutputStream buffer = new ByteArrayOutputStream();
            ObjectOutput out = new ObjectOutputStream(buffer);
            out.writeObject(ko1);
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Related Classes of org.jfree.data.KeyedObjects

  • org.jfree.data.junit.KeyedObjectsTests
  • java.util.List
  • java.util.Iterator
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