1 files changed, 12 insertions, 0 deletions
diff --git a/web_src/js/bootstrap.test.ts b/web_src/js/bootstrap.test.ts
new file mode 100644
index 0000000000..2938678027
--- /dev/null
+++ b/web_src/js/bootstrap.test.ts
@@ -0,0 +1,12 @@
+import {showGlobalErrorMessage} from './bootstrap.ts';
+
+test('showGlobalErrorMessage', () => {
+  document.body.innerHTML = '<div class="page-content"></div>';
+  showGlobalErrorMessage('test msg 1');
+  showGlobalErrorMessage('test msg 2');
+  showGlobalErrorMessage('test msg 1'); // duplicated
+
+  expect(document.body.innerHTML).toContain('>test msg 1 (2)<');
+  expect(document.body.innerHTML).toContain('>test msg 2<');
+  expect(document.querySelectorAll('.js-global-error').length).toEqual(2);
+});