use objects::{ArithmeticOp, CompareOp, EndorNumber, EndorReal};
fn equal(a: &EndorNumber, b: &EndorNumber) {
    assert!(a.numeric_compare(b, CompareOp::Eq).unwrap());
}
#[test]
fn exact_real_arithmetic_keeps_large_values_and_cross_representation_equivalence() {
    let tenth = EndorNumber::decimal("0.10").unwrap();
    let fifth = EndorNumber::rational("2", "10").unwrap();
    equal(
        &tenth.arithmetic(&fifth, ArithmeticOp::Add).unwrap(),
        &EndorNumber::decimal("0.3").unwrap(),
    );
    let large = EndorNumber::integer("9223372036854775807").unwrap();
    equal(
        &large.arithmetic(&1_i64.into(), ArithmeticOp::Add).unwrap(),
        &EndorNumber::integer("9223372036854775808").unwrap(),
    );
    let min = EndorNumber::integer("-9223372036854775808").unwrap();
    assert_eq!(min.as_i64(), Some(i64::MIN));
    equal(
        &min.negated().unwrap(),
        &EndorNumber::integer("9223372036854775808").unwrap(),
    );
    equal(
        &EndorNumber::rational("2", "6").unwrap(),
        &EndorNumber::rational("1", "3").unwrap(),
    );
    assert!(
        EndorNumber::integer("9007199254740993")
            .unwrap()
            .numeric_compare(&EndorNumber::binary_float(9007199254740992.), CompareOp::Gt)
            .unwrap()
    );
}
#[test]
fn ieee_signed_zero_nan_and_operation_limits_are_explicit() {
    let negative = EndorNumber::binary_float(0.).negated().unwrap();
    assert_eq!(
        negative.as_real(),
        Some(&EndorReal::BinaryFloat((-0.0_f64).to_bits()))
    );
    let nan = EndorNumber::binary_float(f64::NAN);
    assert!(!nan.numeric_compare(&nan, CompareOp::Eq).unwrap());
    assert!(nan.numeric_compare(&nan, CompareOp::Ne).unwrap());
    assert!(
        EndorNumber::from(1_i64)
            .arithmetic(&0_i64.into(), ArithmeticOp::Divide)
            .is_err()
    );
    assert!(
        EndorNumber::binary_float(f64::MAX)
            .arithmetic(&2_i64.into(), ArithmeticOp::Multiply)
            .is_err()
    );
    let huge = EndorNumber::decimal("1e99999999999999999").unwrap();
    assert_eq!(huge.to_string(), "1e99999999999999999");
    assert!(huge.arithmetic(&1_i64.into(), ArithmeticOp::Add).is_err());
}