Add unit tests for createNamespace

Author: arnarg

tests/create-namespace.nix

@@ -0,0 +1,36 @@
+{
+  lib,
+  config,
+  ...
+}: let
+  apps = config.applications;
+in {
+  applications = {
+    # Create an application with `createNamespace = true`
+    test1.createNamespace = true;
+
+    # Create an application with `createNamespace = false`
+    test2.createNamespace = false;
+  };
+
+  test = {
+    name = "create namespace";
+    description = "Check that a namespace gets created when createNamespace is specified.";
+    assertions = [
+      {
+        description = "A namespace resource should be created when `createNamespace = true`.";
+        expression = apps.test1.resources.namespaces.test1;
+        assertion = ns:
+          ns.kind
+          == "Namespace"
+          && ns.metadata.name == "test1";
+      }
+
+      {
+        description = "A namespace resource should not be created when `createNamespace = false`.";
+        expression = apps.test2.resources.namespaces;
+        assertion = nss: !(lib.hasAttr "test2" nss);
+      }
+    ];
+  };
+}

tests/default.nix

@@ -6,6 +6,7 @@
       ./defaults.nix
       ./sync-options.nix
       ./compare-options.nix
+      ./create-namespace.nix
     ];
   };
 }