clanLib.jsonschema: move tests from pkgs/clan-cli

lib/jsonschema/test_parseOptions.nix

@@ -0,0 +1,20 @@
+# tests for the nixos options to jsonschema converter
+# run these tests via `nix-unit ./test.nix`
+{ lib ? (import <nixpkgs> { }).lib
+, slib ? import ./. { inherit lib; }
+}:
+let
+  evaledOptions =
+    let
+      evaledConfig = lib.evalModules {
+        modules = [ ./example-interface.nix ];
+      };
+    in
+    evaledConfig.options;
+in
+{
+  testParseOptions = {
+    expr = slib.parseOptions evaledOptions;
+    expected = builtins.fromJSON (builtins.readFile ./example-schema.json);
+  };
+}