nixos/caddy: add tests (#70778)

1 files changed, 82 insertions, 0 deletions

diff --git a/nixos/tests/caddy.nix b/nixos/tests/caddy.nix
new file mode 100644
index 000000000000..ab9d2fbf4d1d
--- /dev/null
+++ b/nixos/tests/caddy.nix
@@ -0,0 +1,82 @@
+import ./make-test.nix ({ pkgs, ... }: {
+  name = "caddy";
+  meta = with pkgs.stdenv.lib.maintainers; {
+    maintainers = [ xfix ];
+  };
+
+  nodes = {
+    webserver = { pkgs, lib, ... }: {
+      services.caddy.enable = true;
+      services.caddy.config = ''
+        http://localhost {
+          gzip
+
+          root ${
+            pkgs.runCommand "testdir" {} ''
+              mkdir "$out"
+              echo hello world > "$out/example.html"
+            ''
+          }
+        }
+      '';
+
+      nesting.clone = [
+        {
+          services.caddy.config = lib.mkForce ''
+            http://localhost {
+              gzip
+
+              root ${
+                pkgs.runCommand "testdir2" {} ''
+                  mkdir "$out"
+                  echo changed > "$out/example.html"
+                ''
+              }
+            }
+          '';
+        }
+
+        {
+          services.caddy.config = ''
+            http://localhost:8080 {
+            }
+          '';
+        }
+      ];
+    };
+  };
+
+  testScript = { nodes, ... }: let
+    etagSystem = "${nodes.webserver.config.system.build.toplevel}/fine-tune/child-1";
+    justReloadSystem = "${nodes.webserver.config.system.build.toplevel}/fine-tune/child-2";
+  in ''
+    my $url = 'http://localhost/example.html';
+    $webserver->waitForUnit("caddy");
+    $webserver->waitForOpenPort("80");
+
+    sub checkEtag {
+      my $etag = $webserver->succeed(
+        'curl -v '.$url.' 2>&1 | sed -n -e "s/^< [Ee][Tt][Aa][Gg]: *//p"'
+      );
+      $etag =~ s/\r?\n$//;
+      my $httpCode = $webserver->succeed(
+        'curl -w "%{http_code}" -X HEAD -H \'If-None-Match: '.$etag.'\' '.$url
+      );
+      die "HTTP code is not 304" unless $httpCode == 304;
+      return $etag;
+    }
+
+    subtest "check ETag if serving Nix store paths", sub {
+      my $oldEtag = checkEtag;
+      $webserver->succeed("${etagSystem}/bin/switch-to-configuration test >&2");
+      $webserver->sleep(1); # race condition
+      my $newEtag = checkEtag;
+      die "Old ETag $oldEtag is the same as $newEtag" if $oldEtag eq $newEtag;
+    };
+
+    subtest "config is reloaded on nixos-rebuild switch", sub {
+      $webserver->succeed("${justReloadSystem}/bin/switch-to-configuration test >&2");
+      $webserver->waitForOpenPort("8080");
+    };
+  '';
+})