add site form validation tests

templates/utils/getFormUrl.test.ts

@@ -0,0 +1,49 @@
+/*
+ * Copyright (C) 2021  Aravinth Manivannan <realaravinth@batsense.net>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+import getFormUrl from './getFormUrl';
+import {getLoginFormHtml} from '../setUpTests';
+
+'use strict';
+
+const formClassName = 'form__box';
+const formURL = '/api/v1/signin';
+
+const noFormErr = "Can't find form";
+
+document.body.innerHTML = getLoginFormHtml();
+
+const form = document.querySelector('form');
+form.action = formURL;
+form.className = formClassName;
+
+it('getFromUrl workds', () => {
+  const name = `.${formClassName}`;
+  expect(getFormUrl(name)).toContain(formURL);
+
+  const form = <HTMLFormElement>document.querySelector('form');
+  expect(getFormUrl(form)).toContain(formURL);
+
+  expect(getFormUrl()).toContain(formURL);
+
+  try {
+    document.body.innerHTML = formURL;
+    getFormUrl();
+  } catch (e) {
+    expect(e.message).toContain(noFormErr);
+  }
+});