Method testStatsFunc

test/org/apache/pig/test/TestBuiltin.java:2025–2124

()

    }

    @Test
    public void testStatsFunc() throws Exception {
        COV cov = new COV("a","b");
        DataBag dBag = DefaultBagFactory.getInstance().newDefaultBag();
        Tuple tup1 = TupleFactory.getInstance().newTuple(1);
        tup1.set(0, 1.0);
        dBag.add(tup1);
        tup1 = TupleFactory.getInstance().newTuple(1);
        tup1.set(0, 4.0);
        dBag.add(tup1);
        tup1 = TupleFactory.getInstance().newTuple(1);
        tup1.set(0, 8.0);
        dBag.add(tup1);
        tup1 = TupleFactory.getInstance().newTuple(1);
        tup1.set(0, 4.0);
        dBag.add(tup1);
        tup1 = TupleFactory.getInstance().newTuple(1);
        tup1.set(0, 7.0);
        dBag.add(tup1);
        tup1 = TupleFactory.getInstance().newTuple(1);
        tup1.set(0, 8.0);
        dBag.add(tup1);
        DataBag dBag1 = DefaultBagFactory.getInstance().newDefaultBag();
        tup1 = TupleFactory.getInstance().newTuple(1);
        tup1.set(0, 2.0);
        dBag1.add(tup1);
        tup1 = TupleFactory.getInstance().newTuple(1);
        tup1.set(0, 2.0);
        dBag1.add(tup1);
        tup1 = TupleFactory.getInstance().newTuple(1);
        tup1.set(0, 3.0);
        dBag1.add(tup1);
        tup1 = TupleFactory.getInstance().newTuple(1);
        tup1.set(0, 3.0);
        dBag1.add(tup1);
        tup1 = TupleFactory.getInstance().newTuple(1);
        tup1.set(0, 2.0);
        dBag1.add(tup1);
        tup1 = TupleFactory.getInstance().newTuple(1);
        tup1.set(0, 4.0);
        dBag1.add(tup1);
        Tuple input = TupleFactory.getInstance().newTuple(2);
        input.set(0, dBag);
        input.set(1, dBag1);
        DataBag output = cov.exec(input);
        Iterator<Tuple> it = output.iterator();
        Tuple ans = it.next();
        assertEquals(ans.get(0),"a");
        assertEquals(ans.get(1),"b");
        assertEquals(1.11111, (Double)ans.get(2),0.0005);

        COR cor = new COR("a","b");
        dBag = DefaultBagFactory.getInstance().newDefaultBag();
        tup1 = TupleFactory.getInstance().newTuple(1);
        tup1.set(0, 1.0);
        dBag.add(tup1);
        tup1 = TupleFactory.getInstance().newTuple(1);
        tup1.set(0, 4.0);