refactor(starter): upgrade and move to typescript

src/templates/CategoriesTemplate/CategoriesTemplate.test.tsx

@@ -0,0 +1,28 @@
+import React from "react";
+import renderer from "react-test-renderer";
+
+import { StaticQuery, useStaticQuery } from "gatsby";
+
+import * as mocks from "@/mocks";
+
+import CategoriesTemplate from "./CategoriesTemplate";
+
+const mockedStaticQuery = StaticQuery as jest.Mock;
+const mockedUseStaticQuery = useStaticQuery as jest.Mock;
+
+describe("CategoriesTemplate", () => {
+  beforeEach(() => {
+    const props = {
+      ...mocks.siteMetadata,
+      allMarkdownRemark: mocks.allMarkdownRemark,
+    };
+
+    mockedStaticQuery.mockImplementationOnce(({ render }) => render(props));
+    mockedUseStaticQuery.mockReturnValue(props);
+  });
+
+  it("renders correctly", () => {
+    const tree = renderer.create(<CategoriesTemplate />).toJSON();
+    expect(tree).toMatchSnapshot();
+  });
+});