From f1eb2f35a6c06c22d5299eb39ab9ce5b88008605 Mon Sep 17 00:00:00 2001
From: Shea Levy <shea@shealevy.com>
Date: Sun, 4 Mar 2018 06:28:49 -0500
Subject: [PATCH] lib/tests: Add check-eval.nix to run simple tests.

This can be used by evaluation-only tools to validate tests are still
working.
---
 lib/tests/check-eval.nix | 7 +++++++
 1 file changed, 7 insertions(+)
 create mode 100644 lib/tests/check-eval.nix

diff --git a/lib/tests/check-eval.nix b/lib/tests/check-eval.nix
new file mode 100644
index 000000000000..8bd7b605a39b
--- /dev/null
+++ b/lib/tests/check-eval.nix
@@ -0,0 +1,7 @@
+# Throws an error if any of our lib tests fail.
+
+let tests = [ "misc" "systems" ];
+    all = builtins.concatLists (map (f: import (./. + "/${f}.nix")) tests);
+in if all == []
+     then null
+   else throw (builtins.toJSON all)