cryptsetup: Add tests.nixos

pkgs/os-specific/linux/cryptsetup/default.nix

@@ -1,5 +1,5 @@
 { lib, stdenv, fetchurl, lvm2, json_c, asciidoctor
-, openssl, libuuid, pkg-config, popt
+, openssl, libuuid, pkg-config, popt, nixosTests
 
   # The release tarballs contain precomputed manpage files, so we don't need
   # to run asciidoctor on the man sources. By avoiding asciidoctor, we make
@@ -53,6 +53,19 @@ stdenv.mkDerivation rec {
   # Issue filed upstream: https://gitlab.com/cryptsetup/cryptsetup/-/issues/763
   doCheck = !stdenv.hostPlatform.isMusl;
 
+  passthru = {
+    tests = {
+      nixos =
+        lib.optionalAttrs stdenv.hostPlatform.isLinux (
+          lib.recurseIntoAttrs (
+            lib.filterAttrs
+              (name: _value: lib.hasPrefix "luks" name)
+              nixosTests.installer
+          )
+        );
+    };
+  };
+
   meta = {
     homepage = "https://gitlab.com/cryptsetup/cryptsetup/";
     description = "LUKS for dm-crypt";