razer should be a-ok

.atom/packages/atom-material-ui/spec/helper/toggle-class-name-spec.js

@@ -0,0 +1,19 @@
+'use babel';
+
+import toggleClassName from '../../lib/helper/toggle-class-name';
+
+describe('className toggle helper', () => {
+    const root = document.documentElement;
+
+    it('should add a className to the root element', () => {
+        expect(root.classList.contains('testClass')).toBe(false);
+        toggleClassName('testClass', true);
+        expect(root.classList.contains('testClass')).toBe(true);
+    });
+
+    it('should remove a className from the root element', () => {
+        expect(root.classList.contains('testClass')).toBe(true);
+        toggleClassName('testClass', false);
+        expect(root.classList.contains('testClass')).toBe(false);
+    });
+});