Method testIncrement

JSAT/test/jsat/utils/IntDoubleMapTest.java:237–290

Test of increment method, of class IntDoubleMap.

()

     * Test of increment method, of class IntDoubleMap.
     */
    @Test
    public void testIncrement()
    {
        System.out.println("increment");
        Integer key = null;
        Double value = null;
        
        Map<Integer, Double> truthMap = new HashMap<Integer, Double>();
        IntDoubleMap idMap = new IntDoubleMap();
        
        int MAX = TEST_SIZE/2;
        int times =0;
        for(int i = 0; i < MAX; i++)
        {
            key = Integer.valueOf(rand.nextInt(MAX));
            value = Double.valueOf(rand.nextInt(1000));
            if(truthMap.containsKey(key))
                times++;
            Double prevTruth = truthMap.put(key, value);
            Double prev = idMap.put(key, value);
            
            if(prev == null && prevTruth != null)
                System.out.println(idMap.put(key, value));
            assertEquals(prevTruth, prev);
            if(idMap.size() != truthMap.size())
            {
                System.out.println();
            }
            assertEquals(truthMap.size(), idMap.size());
        }
        
        assertEntriesAreEqual(truthMap, idMap);
        
        for(Entry<Integer, Double> entry : truthMap.entrySet())
        {
            double delta = Double.valueOf(rand.nextInt(100));
            double trueNewValue =entry.getValue()+delta;
            entry.setValue(trueNewValue);
            double newValue = idMap.increment(entry.getKey(), delta);
            assertEquals(trueNewValue, newValue, 0.0);
        }
        
        for(int i = MAX; i < MAX*2; i++)
        {
            key = Integer.valueOf(i);//force it to be new
            value = Double.valueOf(rand.nextInt(1000));
            
            truthMap.put(key, value);
            double ldNew =idMap.increment(key, value);
            assertEquals(value.doubleValue(), ldNew, 0.0);
        }
        
        assertEntriesAreEqual(truthMap, idMap);
    }

    /**
     * Test of remove method, of class IntDoubleMap.