Add getWrappedComponent util and consume in tests

test/findNodeByName-basic.spec.tsx

@@ -1,5 +1,4 @@
-import React from "react";
-
+import * as React from "react";
 // Import stuff from src
 import { findNodeByComponentName } from "../src";
 
@@ -7,6 +6,7 @@ import { findNodeByComponentName } from "../src";
 import { mountAndGetRootNode } from "./utils/mount-in-enzyme";
 import CDepth1 from "./sample-components/depth-1-simple";
 import { FiberNodeForComponentClass } from "../src/mocked-types";
+import getWrappedComponent from "./utils/getWrappedComponent";
 
 describe("findNodeByComponentName", () => {
   let container: HTMLDivElement;
@@ -21,17 +21,11 @@ describe("findNodeByComponentName", () => {
 
   describe("basic", () => {
     it("should work for top-level name", () => {
-      // TODO: Move this to a helper function
-      class WrappedC extends React.Component {
-        render() {
-          return <CDepth1 />;
-        }
-      }
+      const WrappedC = getWrappedComponent(CDepth1);
       const rootNode = mountAndGetRootNode(WrappedC, container);
 
       const found = findNodeByComponentName(rootNode, CDepth1.name);
 
-      // Shouldn't be null, or other falsy value
       expect(found).not.toBeFalsy();
       expect((found as FiberNodeForComponentClass).stateNode).toBeInstanceOf(
         CDepth1

test/utils/getWrappedComponent.tsx

@@ -0,0 +1,12 @@
+import React from "react";
+
+function getWrappedComponent(SomeComponent: React.ElementType) {
+  class WrappedC extends React.Component {
+    render() {
+      return <SomeComponent />;
+    }
+  }
+  return WrappedC;
+}
+
+export default getWrappedComponent;