1 files changed, 32 insertions, 0 deletions
diff --git a/spec/frontend/vue_shared/components/sidebar/toggle_sidebar_spec.js b/spec/frontend/vue_shared/components/sidebar/toggle_sidebar_spec.js
new file mode 100644
index 00000000000..5cf25ca6f81
--- /dev/null
+++ b/spec/frontend/vue_shared/components/sidebar/toggle_sidebar_spec.js
@@ -0,0 +1,32 @@
+import Vue from 'vue';
+import toggleSidebar from '~/vue_shared/components/sidebar/toggle_sidebar.vue';
+import mountComponent from 'helpers/vue_mount_component_helper';
+
+describe('toggleSidebar', () => {
+  let vm;
+  beforeEach(() => {
+    const ToggleSidebar = Vue.extend(toggleSidebar);
+    vm = mountComponent(ToggleSidebar, {
+      collapsed: true,
+    });
+  });
+
+  it('should render << when collapsed', () => {
+    expect(vm.$el.querySelector('.fa').classList.contains('fa-angle-double-left')).toEqual(true);
+  });
+
+  it('should render >> when collapsed', () => {
+    vm.collapsed = false;
+    Vue.nextTick(() => {
+      expect(vm.$el.querySelector('.fa').classList.contains('fa-angle-double-right')).toEqual(true);
+    });
+  });
+
+  it('should emit toggle event when button clicked', () => {
+    const toggle = jest.fn();
+    vm.$on('toggle', toggle);
+    vm.$el.click();
+
+    expect(toggle).toHaveBeenCalled();
+  });
+});