//! Tests for the Lua stdlib, ported from flowbox-rt's fb_lua `lua_tests` and
//! adapted to this project's sandbox and stdlib.

mod async_tests;
mod core_tests;
mod math_tests;
mod os_tests;
mod require_tests;
mod table_tests;
mod utils_tests;

use mlua::Lua;

/// A fresh sandboxed Lua with the full stdlib installed - the same state scripts get.
pub(crate) fn lua() -> Lua {
    crate::sandbox::create_sandboxed_lua().unwrap()
}

/// Compare two JSON strings as parsed values (key order independent).
#[allow(dead_code)]
pub(crate) fn json_eq(a: &str, b: &str) -> bool {
    let a: serde_json::Value = serde_json::from_str(a).unwrap();
    let b: serde_json::Value = serde_json::from_str(b).unwrap();
    a == b
}

/// Assert that two f64 values are equal within an epsilon (default `f64::EPSILON`).
macro_rules! assert_eq_f64 {
    ($a:expr, $b:expr) => {
        assert_eq_f64!($a, $b, f64::EPSILON)
    };
    ($a:expr, $b:expr, $eps:expr) => {{
        let (a, b): (f64, f64) = ($a, $b);
        let eps: f64 = $eps;
        assert!(
            (a - b).abs() <= eps,
            "assertion failed: `(left !== right)` (left: `{a:?}`, right: `{b:?}`, epsilon: `{eps:?}`, diff: `{:?}`)",
            (a - b).abs()
        );
    }};
}
pub(crate) use assert_eq_f64;