Different behavior with window global scope in newer Node.js versions #3675
Description
Do you want to request a feature or report a bug?
bug?
What is the current behavior?
When deleting something from the global window scope during 2 test runs, the behavior is different when using for example Node.js 7.4.0 (2nd test passes) and 7.9.0/7.10.0 (2nd test fails).
If the current behavior is a bug, please provide the steps to reproduce and either a repl.it demo through https://repl.it/languages/jest or a minimal repository on GitHub that we can yarn install and yarn test.
https://repl.it/IVBE/7
What is the expected behavior?
I don't know what the expected behavior should be, but I guess the one on newer Node.js versions where the second test is failing because the key was deleted seems to be the right one. That might not be even a Jest related issue, or an issue at all?
FAIL src\add-test.js
● require › case 2
TypeError: Cannot read property 'value' of undefined
at Object.<anonymous> (src/add-test.js:12:28)
at Promise.resolve.then.el (node_modules/p-map/index.js:42:16)
at process._tickCallback (internal/process/next_tick.js:109:7)
Please provide your exact Jest configuration and mention your Jest, node, yarn/npm version and operating system.
Jest: 19.0.2 and 20.0.4
Node.js: 7.4.0 (working) and 7.9.0/7.10.0 (not working)