1 files changed, 39 insertions, 0 deletions

diff --git a/spec/frontend/issues/show/store_spec.js b/spec/frontend/issues/show/store_spec.js
new file mode 100644
index 00000000000..20d3a6cdaae
--- /dev/null
+++ b/spec/frontend/issues/show/store_spec.js
@@ -0,0 +1,39 @@
+import Store from '~/issues/show/stores';
+import updateDescription from '~/issues/show/utils/update_description';
+
+jest.mock('~/issues/show/utils/update_description');
+
+describe('Store', () => {
+  let store;
+
+  beforeEach(() => {
+    store = new Store({
+      descriptionHtml: '<p>This is a description</p>',
+    });
+  });
+
+  describe('updateState', () => {
+    beforeEach(() => {
+      document.body.innerHTML = `
+            <div class="detail-page-description content-block">
+              <details open>
+                <summary>One</summary>
+              </details>
+              <details>
+                <summary>Two</summary>
+              </details>
+            </div>
+          `;
+    });
+
+    afterEach(() => {
+      document.getElementsByTagName('html')[0].innerHTML = '';
+    });
+
+    it('calls updateDetailsState', () => {
+      store.updateState({ description: '' });
+
+      expect(updateDescription).toHaveBeenCalledTimes(1);
+    });
+  });
+});