rs_bindings_from_cc/test/cc_std/test.rs

// Part of the Crubit project, under the Apache License v2.0 with LLVM
// Exceptions. See /LICENSE for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception

//TODO(rosica): We need namespaces in order to be able to test more here.

#[cfg(test)]
mod tests {
    use cc_std::*;

    #[test]
    fn test_ctime() {
        // Tests of items from the `<ctime>` header.
        ctor::emplace! {
            let _t = ctor::ctor!(tm {
                tm_gmtoff: 0,
                tm_hour: 1,
                tm_isdst: 2,
                tm_mday: 3,
                tm_min: 4,
                tm_mon: 5,
                tm_sec: 6,
                tm_wday: 7,
                tm_yday: 8,
                tm_year: 9,
                tm_zone: "zone".as_ptr(),
            });
        }
    }

    #[test]
    fn test_limits_inline() {
        // Tests of items from the `<limits>` header.
        // https://en.cppreference.com/w/cpp/types/numeric_limits/float_round_style:
        assert_eq!(0, std::float_round_style::round_toward_zero.into());
        assert_eq!(1, std::float_round_style::round_to_nearest.into());
        assert_eq!(2, std::float_round_style::round_toward_infinity.into());
        assert_eq!(3, std::float_round_style::round_toward_neg_infinity.into());
        assert_eq!(-1, std::float_round_style::round_indeterminate.into());
    }

    #[test]
    fn test_string_view() {
        let x = "this is a string";
        let x_sv = std::string_view::from(x);
        assert_eq!(x, <&str>::try_from(x_sv).unwrap());
    }
}