Add test for input component

app/src/components/input/Input.test.js

@@ -0,0 +1,21 @@
+import Input from "./index";
+import { render } from '@testing-library/react';
+import userEvent from '@testing-library/user-event';
+
+describe("Labelled Input", () => {
+  test("Input has value and calls onChange", () => {
+    const onChange = jest.fn();
+    const value = "Hello world"
+    const label = "Form input"
+
+    const { getByLabelText } = render(
+      <Input label={label} onChange={onChange} value={value} />
+    );
+
+    const input = getByLabelText("Form input");
+    expect(input.value).toBe("Hello world")
+
+    userEvent.type(input, 'User input');
+    expect(onChange).toHaveBeenCalledTimes(10);
+  })
+})