improvise/crates/improvise-incremental/tests/random_live.rs

//! `Incremental` over a live source against `Eager` over random formula and cell edits.
//! Evidence: `context/test-evidence/improvise-incremental.md`.

mod support;

use improvise_incremental::differential_in;
use proptest::prelude::*;
use support::live::Fed;
use support::{any_formula_edit, formula_workbook};

proptest! {
    #[test]
    fn a_live_source_matches_eager_over_random_formula_and_cell_edits(
        edits in prop::collection::vec(any_formula_edit(), 0..3),
    ) {
        let wb = formula_workbook();
        let none = vec!["Region".to_string()];
        let candidate = Fed::new(&wb.model, none.clone());
        let ran = differential_in(&wb.model, &[], &none, candidate, &edits);
        prop_assert!(ran.is_ok(), "{}", ran.unwrap_err());
    }
}