1 files changed, 25 insertions, 0 deletions
diff --git a/spec/frontend/vue_mr_widget/components/states/mr_widget_sha_mismatch_spec.js b/spec/frontend/vue_mr_widget/components/states/mr_widget_sha_mismatch_spec.js
new file mode 100644
index 00000000000..38920846a50
--- /dev/null
+++ b/spec/frontend/vue_mr_widget/components/states/mr_widget_sha_mismatch_spec.js
@@ -0,0 +1,25 @@
+import Vue from 'vue';
+import mountComponent from 'helpers/vue_mount_component_helper';
+import { removeBreakLine } from 'helpers/text_helper';
+import ShaMismatch from '~/vue_merge_request_widget/components/states/sha_mismatch.vue';
+
+describe('ShaMismatch', () => {
+  let vm;
+
+  beforeEach(() => {
+    const Component = Vue.extend(ShaMismatch);
+    vm = mountComponent(Component);
+  });
+
+  afterEach(() => {
+    vm.$destroy();
+  });
+
+  it('should render information message', () => {
+    expect(vm.$el.querySelector('button').disabled).toEqual(true);
+
+    expect(removeBreakLine(vm.$el.textContent).trim()).toContain(
+      'The source branch HEAD has recently changed. Please reload the page and review the changes before merging',
+    );
+  });
+});