Update test config to leverage swc

jest.config.js

@@ -7,4 +7,39 @@ module.exports = {
   globalTeardown: '<rootDir>/jest-global-teardown.js',
   setupFilesAfterEnv: ['<rootDir>/jest-setup-after-env.js'],
   testEnvironment: '<rootDir>/jest-environment.js',
+  transformIgnorePatterns: ['/node_modules/', '/next[/\\\\]dist/'],
+  transform: {
+    '.+\\.(t|j)sx?$': [
+      // this matches our SWC options used in https://github.com/vercel/next.js/blob/canary/packages/next/taskfile-swc.js
+      '@swc/jest',
+      {
+        module: {
+          type: 'commonjs',
+        },
+        env: {
+          targets: {
+            node: '12.0.0',
+          },
+        },
+        jsc: {
+          loose: true,
+
+          parser: {
+            syntax: 'typescript',
+            dynamicImport: true,
+            tsx: true,
+          },
+          transform: {
+            react: {
+              pragma: 'React.createElement',
+              pragmaFrag: 'React.Fragment',
+              throwIfNamespace: true,
+              development: false,
+              useBuiltins: true,
+            },
+          },
+        },
+      },
+    ],
+  },
 }

package.json

@@ -51,6 +51,7 @@
     "@mdx-js/loader": "0.18.0",
     "@svgr/webpack": "5.5.0",
     "@swc/core": "1.2.80",
+    "@swc/jest": "0.2.2",
     "@testing-library/react": "11.2.5",
     "@types/cheerio": "0.22.16",
     "@types/fs-extra": "8.1.0",
@@ -68,8 +69,6 @@
     "alex": "9.1.0",
     "amphtml-validator": "1.0.33",
     "async-sema": "3.0.1",
-    "babel-core": "7.0.0-bridge.0",
-    "babel-jest": "27.0.0-next.5",
     "browserslist": "^4.14.7",
     "browserstack-local": "1.4.0",
     "cheerio": "0.22.0",
@@ -98,7 +97,7 @@
     "image-size": "0.9.3",
     "is-animated": "2.0.0",
     "isomorphic-unfetch": "3.0.0",
-    "jest": "27.0.0-next.8",
+    "jest": "27.0.6",
     "ky": "0.19.1",
     "ky-universal": "0.6.0",
     "lerna": "4.0.0",