1 files changed, 56 insertions, 0 deletions
diff --git a/spec/frontend/vue_shared/components/toggle_labels_spec.js b/spec/frontend/vue_shared/components/toggle_labels_spec.js
new file mode 100644
index 00000000000..e4b4b7f9e0c
--- /dev/null
+++ b/spec/frontend/vue_shared/components/toggle_labels_spec.js
@@ -0,0 +1,56 @@
+import { GlToggle } from '@gitlab/ui';
+import Vue from 'vue';
+import VueApollo from 'vue-apollo';
+import createMockApollo from 'helpers/mock_apollo_helper';
+import { shallowMountExtended } from 'helpers/vue_test_utils_helper';
+import waitForPromises from 'helpers/wait_for_promises';
+
+import ToggleLabels from '~/vue_shared/components/toggle_labels.vue';
+import isShowingLabelsQuery from '~/graphql_shared/client/is_showing_labels.query.graphql';
+
+Vue.use(VueApollo);
+
+describe('ToggleLabels', () => {
+  let wrapper;
+
+  const findToggle = () => wrapper.findComponent(GlToggle);
+
+  const mockSetIsShowingLabelsResolver = jest.fn();
+  const mockApollo = createMockApollo([], {
+    Mutation: {
+      setIsShowingLabels: mockSetIsShowingLabelsResolver,
+    },
+  });
+
+  const createComponent = () => {
+    mockApollo.clients.defaultClient.cache.writeQuery({
+      query: isShowingLabelsQuery,
+      data: {
+        isShowingLabels: true,
+      },
+    });
+    wrapper = shallowMountExtended(ToggleLabels, {
+      apolloProvider: mockApollo,
+    });
+  };
+
+  beforeEach(() => {
+    createComponent();
+  });
+
+  it('calls setIsShowingLabelsMutation on toggle', async () => {
+    expect(findToggle().props('value')).toBe(true);
+    findToggle().vm.$emit('change', false);
+
+    await waitForPromises();
+
+    expect(mockSetIsShowingLabelsResolver).toHaveBeenCalledWith(
+      {},
+      {
+        isShowingLabels: false,
+      },
+      expect.anything(),
+      expect.anything(),
+    );
+  });
+});