from copapy import CPVariable, Target
from pytest import approx


def function(c1):
    i1 = c1 / 4 + c1 / -4 - c1 // 4 * c1 // -4 + (c1 * -1) // 4

    r1 = i1 / 32.4 + 54 * c1
    r2 = 65 * c1 + 8
    r3 = c1 > r2

    return [r1, r2, r3]


def test_compile():

    c1 = CPVariable(16)

    ret = function(c1)

    tg = Target()
    print('* compile and copy ...')
    tg.compile(ret)
    #time.sleep(5)
    print('* run and copy ...')
    tg.run()
    #print('* finished')

    ret_ref = function(16)

    for test, ref, name in zip(ret, ret_ref, ['i1', 'i2', 'r1', 'r2']):
        val = tg.read_value(test)
        print('+', name, val, ref)
        assert val == approx(ref, 1e-5), name


if __name__ == "__main__":
    test_compile()