--wip-- [skip ci]

e2e/v8-coverage/__tests__/test.js

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+// Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved.
+
+require('../typescript');
+
+test('dummy test', () => {
+  expect(1).toBe(1);
+});

e2e/v8-coverage/package.json

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+{
+  "jest": {
+    "testEnvironment": "node"
+  }
+}

e2e/v8-coverage/script.js

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+const vm = require('vm');
+const CoverageInstrumenter = require('@jest/coverage').default;
+
+const script = new vm.Script(
+  `
+function thing() {
+  if (Math.random() > 0.5) {
+    output = 'success!';
+  } else {
+    output = 'failure';
+  }
+}
+
+thing();
+`
+);
+
+async function doThings() {
+  const context = vm.createContext({output: ''});
+  const instrumenter = new CoverageInstrumenter();
+
+  await instrumenter.startInstrumenting();
+
+  script.runInContext(context);
+
+  const coverage = await instrumenter.stopInstrumenting();
+
+  return JSON.stringify(coverage);
+}
+
+doThings().then(console.log, console.error);