Interactive snapshot mode instantly finishes (and reports updates that are not performed)

[simonrepp]

💥 Regression Report

Hi!

Since my jest update from 22.4.3 to 23.1.0, interactive snapshot mode stopped working for me in one specific project. (I tried to reproduce the issue in a barebones project setup with just jest and a single test and there it did not occur).

Basically this is where I start off, a single failing spec (which can be any, or many, observed this at least three times):

When I press i to enter interactive mode I immediately (without any interaction) see this:

(Although it says that snapshots were updated nothing happens in the background though)

Then I press enter and I am back at the same state as in the first screenshot seen above. Repeating the process yields the same result again.

Last working version

Worked up to version: 22.4.3
Stopped working in version: 23.1.0

To Reproduce

As stated I cannot reproduce this problem in a minimal setup, so I created a branch off my project with a single failing test that demonstrates the problem (branch is here: https://github.com/eno-lang/enojs/tree/jest-interactive-snapshot-updates-issue).

git clone -b jest-interactive-snapshot-updates-issue https://github.com/eno-lang/enojs.git
cd enojs
npm i
npm test

(Note regarding npm i: jest is the only dependency being used/installed)

This should leave you at where I start off in the description above, then press i and the issue should surface by skipping interactive mode.

To verify it's in fact a regression I also ran this:

npm i jest@22.4.3
npm test

With this, the following steps work, interactive mode is indeed interactive there. :)

System info

  System:
    OS: Linux 4.13 Ubuntu 17.10 (Artful Aardvark)
    CPU: x64 Intel(R) Xeon(R) CPU E5-1650 v3 @ 3.50GHz
  Binaries:
    Node: 10.4.1 - /usr/bin/node
    npm: 6.1.0 - /usr/bin/npm
  npmPackages:
    jest: ^23.1.0 => 23.1.0 

Thanks so much for looking into it, jest is fantastic, much obliged!

[rickhanlonii]

Wonder if this is the same as #6431?

[rickhanlonii]

Wow thanks for the repro @simonrepp, I'll take a look

[simonrepp]

Yay, much appreciated @rickhanlonii !

[github-actions]

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