1 files changed, 42 insertions, 0 deletions
diff --git a/spec/frontend/vue_merge_request_widget/components/states/mr_widget_sha_mismatch_spec.js b/spec/frontend/vue_merge_request_widget/components/states/mr_widget_sha_mismatch_spec.js
new file mode 100644
index 00000000000..2a343997cf5
--- /dev/null
+++ b/spec/frontend/vue_merge_request_widget/components/states/mr_widget_sha_mismatch_spec.js
@@ -0,0 +1,42 @@
+import { mount } from '@vue/test-utils';
+import ShaMismatch from '~/vue_merge_request_widget/components/states/sha_mismatch.vue';
+import { I18N_SHA_MISMATCH } from '~/vue_merge_request_widget/i18n';
+
+function createComponent({ path = '' } = {}) {
+  return mount(ShaMismatch, {
+    propsData: {
+      mr: {
+        mergeRequestDiffsPath: path,
+      },
+    },
+  });
+}
+
+describe('ShaMismatch', () => {
+  let wrapper;
+  const findActionButton = () => wrapper.find('[data-testid="action-button"]');
+
+  beforeEach(() => {
+    wrapper = createComponent();
+  });
+
+  afterEach(() => {
+    wrapper.destroy();
+  });
+
+  it('should render warning message', () => {
+    expect(wrapper.element.innerText).toContain(I18N_SHA_MISMATCH.warningMessage);
+  });
+
+  it('action button should have correct label', () => {
+    expect(findActionButton().text()).toBe(I18N_SHA_MISMATCH.actionButtonLabel);
+  });
+
+  it('action button should link to the diff path', () => {
+    const DIFF_PATH = '/gitlab-org/gitlab-test/-/merge_requests/6/diffs';
+
+    wrapper = createComponent({ path: DIFF_PATH });
+
+    expect(findActionButton().attributes('href')).toBe(DIFF_PATH);
+  });
+});