Document need for a custom snapshotResolver

[FokkeZB]

I noticed that (DOM) snapshots get stored alongside with the generated tests, and since they get generated in a temporary folder, that doesn't work.

Fortunately Jest supports a custom snapshotResolver, so I updated the README with instructions on how to use that.

[yannbf]

Hey @FokkeZB thanks for your contribution! That should not be a problem unless you're using --stories-json mode. Was that the case? If so, would you mind adding such notes as optional, in the scenario of the stories json mode?

[FokkeZB]

@yannbf I will. Although I must say I haven't been able to get the test runner to work without --stories-json. I get:

% yarn test-storybook                  
yarn run v1.22.17
$ test-storybook
No tests found, exiting with code 1
Run with `--passWithNoTests` to exit with code 0
In /Users/fokkezb/Code/zdl-editor/packages/storybook
  175 files checked.
  testMatch: /Users/fokkezb/Code/zdl-editor/packages/storybook/stories/Welcome.stories.mdx, /Users/fokkezb/Code/zdl-editor/packages/storybook/stories/architecture/*.stories.@(mdx|ts|tsx), /Users/fokkezb/Code/zdl-editor/packages/storybook/stories/terminology/*.stories.@(mdx|ts|tsx), /Users/fokkezb/Code/zdl-editor/packages/storybook/stories/concepts/*.stories.@(mdx|ts|tsx), /Users/fokkezb/Code/zdl-editor/packages/storybook/stories/development/*.stories.@(mdx|ts|tsx), /Users/fokkezb/Code/zdl-editor/packages/storybook/stories/service/*.stories.@(mdx|ts|tsx), /Users/fokkezb/Code/zdl-editor/packages/storybook/stories/**/*.stories.@(mdx|ts|tsx), /Users/fokkezb/Code/zdl-editor/node_modules/@zapier/editor/src/**/*.stories.@(mdx|ts|tsx) - 0 matches
  testPathIgnorePatterns: /node_modules/ - 175 matches
  testRegex:  - 0 matches
Pattern:  - 0 matches

And that's it 🤷

[yannbf]

That's odd! Can you reach out on twitter?

[FokkeZB]

See #133 for the bug that causes --no-stories-json not to work for us.

[FokkeZB]

@yannbf I've updated the PR.

[yannbf]

Looks great! Thanks a lot for your contribution @FokkeZB !

[github-actions]

🚀 PR was released in v0.4.0 🚀