Function test_pointer_order

python/pathway/tests/test_operators.py:669–720

()

def test_pointer_order():
    t = T(
        """
    ptrA | ptrB | ptrC
       1 |   11 |   21
       2 |   12 |   22
       3 |   13 |   23
       4 |   14 |   24
       5 |   15 |   25
    """
    ).with_columns(
        ptrA=pw.this.pointer_from(pw.this.ptrA),
        ptrB=pw.this.pointer_from(pw.this.ptrB),
        ptrC=pw.this.pointer_from(pw.this.ptrC),
    )
    res = t.select(
        a1=(t.ptrA < t.ptrB) == (t.ptrA <= t.ptrB),
        a2=(t.ptrA > t.ptrB) == (t.ptrA >= t.ptrB),
        a3=(t.ptrB < t.ptrC) == (t.ptrB <= t.ptrC),
        a4=(t.ptrB > t.ptrC) == (t.ptrB >= t.ptrC),
        a5=(t.ptrA < t.ptrC) == (t.ptrA <= t.ptrC),
        a6=(t.ptrA > t.ptrC) == (t.ptrA >= t.ptrC),
        b1=(t.ptrA < t.ptrB) != (t.ptrA > t.ptrB),
        b2=(t.ptrA < t.ptrC) != (t.ptrA > t.ptrC),
        b3=(t.ptrB < t.ptrC) != (t.ptrB > t.ptrC),
        # <= below on bools is -> implies
        c1=((t.ptrA < t.ptrB) & (t.ptrB < t.ptrC)) <= (t.ptrA < t.ptrC),
        c2=((t.ptrA < t.ptrC) & (t.ptrC < t.ptrB)) <= (t.ptrA < t.ptrB),
        c3=((t.ptrB < t.ptrA) & (t.ptrA < t.ptrC)) <= (t.ptrB < t.ptrC),
        c4=((t.ptrB < t.ptrC) & (t.ptrC < t.ptrA)) <= (t.ptrB < t.ptrA),
        c5=((t.ptrC < t.ptrA) & (t.ptrA < t.ptrB)) <= (t.ptrC < t.ptrB),
        c6=((t.ptrC < t.ptrB) & (t.ptrB < t.ptrA)) <= (t.ptrC < t.ptrA),
    )

    expected = t.select(
        a1=True,
        a2=True,
        a3=True,
        a4=True,
        a5=True,
        a6=True,
        b1=True,
        b2=True,
        b3=True,
        c1=True,
        c2=True,
        c3=True,
        c4=True,
        c5=True,
        c6=True,
    )
    assert_table_equality(res, expected)


@pytest.mark.parametrize(