fix(jest-runner): Support multi project jest-configs

e2e/package.json

@@ -7,8 +7,10 @@
     "@babel/core": "~7.8.3",
     "@babel/plugin-proposal-class-properties": "~7.8.3",
     "@babel/plugin-proposal-pipeline-operator": "~7.8.3",
+    "@babel/plugin-transform-runtime": "^7.13.10",
     "@babel/preset-env": "~7.8.3",
     "@babel/preset-flow": "7.12.13",
+    "@babel/preset-react": "^7.12.13",
     "@types/node": "^10.12.18",
     "@types/semver": "~6.2.0",
     "ajv": "~7.0.2",

e2e/test/jest-multiple-projects/.babelrc

@@ -0,0 +1,9 @@
+{
+  "plugins": [
+    "@babel/plugin-proposal-class-properties",
+    "@babel/plugin-transform-runtime"
+  ],
+  "presets": [
+    "@babel/env"
+  ]
+}

e2e/test/jest-multiple-projects/__mocks__/fileMock.js

@@ -0,0 +1 @@
+module.exports = "test-file-stub";

e2e/test/jest-multiple-projects/client/.babelrc

@@ -0,0 +1,6 @@
+{
+  "extends": "../.babelrc",
+  "presets": [
+    "@babel/preset-react"
+  ]
+}

e2e/test/jest-multiple-projects/client/.eslintrc.json

@@ -0,0 +1,24 @@
+{
+  "env": {
+    "browser": true
+  },
+  "extends": [
+    "plugin:jsx-a11y/strict",
+    "plugin:react/recommended"
+  ],
+  "plugins": [
+    "react-hooks"
+  ],
+  "rules": {
+    "react/jsx-tag-spacing": "error",
+    "react/no-unused-prop-types": "error",
+    "react/prop-types": "error",
+    "react-hooks/rules-of-hooks": "error",
+    "react-hooks/exhaustive-deps": "error"
+  },
+  "settings": {
+    "react": {
+      "version": "detect"
+    }
+  }
+}

e2e/test/jest-multiple-projects/client/src/components/hello-component.js

@@ -0,0 +1,7 @@
+
+export class HelloComponent extends HTMLElement {
+  connectedCallback() {
+    this.innerText = 'hello world';
+  }
+}
+window.customElements.define('jest-hello', HelloComponent);

e2e/test/jest-multiple-projects/client/src/components/hello-component.test.js

@@ -0,0 +1,11 @@
+import './hello-component';
+
+describe('hello-component', () => {
+
+  fit('should show a "hello world" message', () => {
+    const element = document.createElement('jest-hello');
+    document.body.appendChild(element);
+    expect(element.innerText).toEqual('hello world');
+    document.body.removeChild(element);
+  });
+});

e2e/test/jest-multiple-projects/jest.config.js

@@ -0,0 +1,22 @@
+module.exports = {
+	projects: [
+		{
+			displayName: "client",
+			setupFilesAfterEnv: [
+				"<rootDir>/client/setupTests.js",
+			],
+			testEnvironment: "jsdom",
+			testMatch: [
+				"<rootDir>/client/**/*.test.js",
+			],
+		},
+		{
+			displayName: "server",
+			testEnvironment: "node",
+			testMatch: [
+				"<rootDir>/server/**/*.test.js",
+			],
+		},
+	],
+	testRunner: "jest-circus/runner",
+};