1 files changed, 53 insertions, 0 deletions
diff --git a/spec/frontend/environments/environment_rollback_spec.js b/spec/frontend/environments/environment_rollback_spec.js
new file mode 100644
index 00000000000..fb62a096c3d
--- /dev/null
+++ b/spec/frontend/environments/environment_rollback_spec.js
@@ -0,0 +1,53 @@
+import { shallowMount, mount } from '@vue/test-utils';
+import { GlButton } from '@gitlab/ui';
+import eventHub from '~/environments/event_hub';
+import RollbackComponent from '~/environments/components/environment_rollback.vue';
+
+describe('Rollback Component', () => {
+  const retryUrl = 'https://gitlab.com/retry';
+
+  it('Should render Re-deploy label when isLastDeployment is true', () => {
+    const wrapper = mount(RollbackComponent, {
+      propsData: {
+        retryUrl,
+        isLastDeployment: true,
+        environment: {},
+      },
+    });
+
+    expect(wrapper.element).toHaveSpriteIcon('repeat');
+  });
+
+  it('Should render Rollback label when isLastDeployment is false', () => {
+    const wrapper = mount(RollbackComponent, {
+      propsData: {
+        retryUrl,
+        isLastDeployment: false,
+        environment: {},
+      },
+    });
+
+    expect(wrapper.element).toHaveSpriteIcon('redo');
+  });
+
+  it('should emit a "rollback" event on button click', () => {
+    const eventHubSpy = jest.spyOn(eventHub, '$emit');
+    const wrapper = shallowMount(RollbackComponent, {
+      propsData: {
+        retryUrl,
+        environment: {
+          name: 'test',
+        },
+      },
+    });
+    const button = wrapper.find(GlButton);
+
+    button.vm.$emit('click');
+
+    expect(eventHubSpy).toHaveBeenCalledWith('requestRollbackEnvironment', {
+      retryUrl,
+      isLastDeployment: true,
+      name: 'test',
+    });
+  });
+});