grafana-loki: add simple version test

v3.0.0 changed the ldflag prefix, which we rely on to pass and embed
version information.

This is likely to happen again, and such version test is incredibly
inexpensive.

1 files changed, 9 insertions, 1 deletions

diff --git a/pkgs/servers/monitoring/loki/default.nix b/pkgs/servers/monitoring/loki/default.nix
index 176ec316a6ebb..0cf35895ca6ca 100644
--- a/pkgs/servers/monitoring/loki/default.nix
+++ b/pkgs/servers/monitoring/loki/default.nix
@@ -5,6 +5,8 @@
 , makeWrapper
 , nixosTests
 , systemd
+, testers
+, grafana-loki
 }:
 
 buildGoModule rec {
@@ -38,7 +40,13 @@ buildGoModule rec {
       --prefix LD_LIBRARY_PATH : "${lib.getLib systemd}/lib"
   '';
 
-  passthru.tests = { inherit (nixosTests) loki; };
+  passthru.tests = {
+    inherit (nixosTests) loki;
+    version = testers.testVersion {
+      command = "loki --version";
+      package = grafana-loki;
+    };
+  };
 
   ldflags = let t = "github.com/grafana/loki/v3/pkg/util/build"; in [
     "-s"