Rename and move existing sample test

test/example.spec.tsx

@@ -0,0 +1,25 @@
+import { mount, ReactWrapper } from "enzyme";
+import * as React from "react";
+import C from "./sample-components/basic";
+
+describe("Component", () => {
+  let container: HTMLDivElement;
+  let wrapper: ReactWrapper;
+
+  beforeEach(() => {
+    container = document.body.appendChild(document.createElement("div"));
+  });
+
+  afterEach(() => {
+    document.body.removeChild(container);
+  });
+
+  it("should render correctly", () => {
+    const rootRef = React.createRef<C>();
+
+    rootRef.current && rootRef.current
+
+    wrapper = mount(<C text="text" ref={rootRef} />, { attachTo: container });
+    expect(wrapper.html()).toMatchSnapshot();
+  });
+});