def test_ten(): assert decimal_to_str(Decimal("10")) == "10"
def test_quarter_quadrillion_and_a_bit(): assert (decimal_to_str(Decimal("250000000000000.0000000000011")) == "250000000000000.0000000000011")
def test_one(): assert decimal_to_str(Decimal("1")) == "1"
def test_quarter_quadrillion(): assert decimal_to_str(Decimal("250000000000000")) == "250000000000000"
def test_one_trillionth_and_a_bit(): assert decimal_to_str(Decimal("0.0000000000011")) == "0.0000000000011"
def test_one_trillion(): assert decimal_to_str(Decimal("1000000000000")) == "1000000000000"
def test_one_trillionth(): assert decimal_to_str(Decimal("0.000000000001")) == "0.000000000001"
def test_one_tenth(): assert decimal_to_str(Decimal("0.1")) == "0.1"