Move to microbundle

.babelrc

@@ -1,7 +1,8 @@
 {
-  "presets": ["env", "stage-0", "react"],
-  "plugins": [
-    "transform-object-rest-spread",
-    "transform-react-jsx"
-  ]
+  "presets": ["@babel/preset-env", "@babel/preset-react"],
+  "plugins": ["@babel/plugin-proposal-class-properties"]
+  // "plugins": [
+  //   "transform-object-rest-spread",
+  //   "transform-react-jsx"
+  // ]
 }

.codeclimate.yml

@@ -1,2 +1,3 @@
-exclude_paths:
+exclude_patterns:
   - "build/"
+  - "__tests__/"

.gitignore

@@ -0,0 +1 @@
+build

.travis.yml

@@ -1,5 +1,5 @@
 language: node_js
 node_js:
-  - '8'
+  - "12"
 cache: yarn
 script: "yarn test-ci"

__tests__/HoverImage.test.jsx

@@ -0,0 +1,77 @@
+import React from "react";
+import Enzyme, { shallow, mount, render } from "enzyme";
+import Adapter from "enzyme-adapter-react-16";
+Enzyme.configure({ adapter: new Adapter() });
+
+import HoverImage from "../src";
+
+test("Displays initial src image", () => {
+  const wrapper = mount(
+    <HoverImage src={"/img/first.png"} hoverSrc={"/img/first-hover.png"} />
+  );
+  expect(wrapper.state().src).toBe("/img/first.png");
+});
+
+test("Changes to hoverSrc on mouseOver", () => {
+  const wrapper = mount(
+    <HoverImage src={"/img/first.png"} hoverSrc={"/img/first-hover.png"} />
+  );
+  wrapper.find("img").simulate("mouseover");
+  expect(wrapper.state().src).toBe("/img/first-hover.png");
+});
+
+test("When given an onClick, it gets called when clicked", () => {
+  const doneChange = jest.fn();
+
+  const wrapper = shallow(
+    <HoverImage
+      onClick={doneChange}
+      src={"/img/first.png"}
+      hoverSrc={"/img/first-hover.png"}
+    />
+  );
+  wrapper.find("img").simulate("click");
+  expect(doneChange).toBeCalled();
+});
+
+test("When given an onClick, it does not get called when disabled", () => {
+  const doneChange = jest.fn();
+  const disabled = true;
+
+  const wrapper = shallow(
+    <HoverImage
+      disabled={disabled}
+      onClick={doneChange}
+      src={"/img/first.png"}
+      hoverSrc={"/img/first-hover.png"}
+    />
+  );
+  wrapper.find("img").simulate("click");
+
+  expect(doneChange).not.toBeCalled();
+});
+
+test("No errors if click, but no onClick provided", () => {
+  const wrapper = shallow(
+    <HoverImage src={"/img/first.png"} hoverSrc={"/img/first-hover.png"} />
+  );
+  expect(() => {
+    wrapper.find("img").simulate("click");
+  }).not.toThrowError();
+});
+
+test("Matches snapshot", () => {
+  const doneChange = jest.fn();
+  const disabled = false;
+
+  const wrapper = shallow(
+    <HoverImage
+      disabled={disabled}
+      onClick={doneChange}
+      src={"/img/first.png"}
+      hoverSrc={"/img/first-hover.png"}
+    />
+  );
+
+  expect(wrapper).toMatchSnapshot();
+});

__tests__/__snapshots__/HoverImage.test.jsx.snap

@@ -0,0 +1,7 @@
+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`Matches snapshot 1`] = `
+ShallowWrapper {
+  "length": 1,
+}
+`;