From 9fc02843792eff801cc569e6b840116a17b41a87 Mon Sep 17 00:00:00 2001
From: mfw78 <mfw78@nxm.rs>
Date: Thu, 23 Jul 2026 01:18:11 +0000
Subject: [PATCH] flake: add cargo-nextest to the dev shell

CI runs the suite with cargo nextest, but the dev shell shipped no
nextest at all, so local gating silently diverged onto cargo test and
workflow tooling had to nest a `nix shell nixpkgs#cargo-nextest` call to
match CI. Pin it here and report its version in the banner.

Unlike sccache, which is deliberately not bundled because a client must
version-match the host's server, nextest is a standalone runner with no
such constraint.
---
 flake.nix | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/flake.nix b/flake.nix
index 410ffa14..a861afc7 100644
--- a/flake.nix
+++ b/flake.nix
@@ -43,6 +43,7 @@
         devShells.default = pkgs.mkShell {
           buildInputs = with pkgs; [
             rustToolchain
+            cargo-nextest
             wasm-tools
             wabt
             just
@@ -72,6 +73,7 @@
             fi
             echo "nexum dev shell — $(rustc --version)"
             command -v sccache >/dev/null && echo "  compiler cache: $(sccache --version)"
+            echo "  test runner: $(cargo nextest --version | head -n1)"
             ${lib.optionalString stdenv.isLinux ''command -v mold >/dev/null && echo "  linker (native): mold $(mold --version | head -n1 | grep -oE '[0-9]+\.[0-9]+\.[0-9]+' | head -n1)"''}
           '';
         };