Cannot generate Jest image snapshot - getting error "TypeError: matcher.apply is not a function"

[basher]

Is this a bug report?

Yes.

Did you try recovering your dependencies?

Yes.

But I've started again with a fresh instance of Create React App (Git repo link further down...).

Which terms did you search for in User Guide?

"jest", "snapshot"

Environment

Environment:
OS: Windows 10
Node: 8.11.1
Yarn: 1.7.0
npm: 5.6.0
Watchman: Not Found
Xcode: N/A
Android Studio: Version 3.1.0.0 AI-173.4819257

Packages: (wanted => installed)
react: ^16.5.2 => 16.5.2
react-dom: ^16.5.2 => 16.5.2
react-scripts: ^1.1.4 => 1.1.4

Steps to Reproduce

Git repo (link below...) has README which explains issue.

Basically...

1. yarn test and yarn coverage both function correctly on "./src/App.test.js".
2. Adding an additional "jest-image-snapshot" test (with appropriate dependencies - e.g. Puppeteer) breaks the test, with a Node error as specified in title of this bug.
3. Moving the image snapshot test to a folder OUTSIDE "./src" and running it independently via a Node script from "package.json", I get the same Node error.

Expected Behavior

I expected a PNG snapshot image to have been created from the rendered browser output. No image is generated.

Actual Behavior

Test fails to complete, with a Node error, as per title of this bug.

Reproducible Demo

See bug-jest-image-snaphot

[basher]

Wondering whether an update to Jest 23 as part of React Scripts update to V2 will help?

• Any idea when V2 will be available?
• And what potential issues there might be compared to V1.1.4?

[basher]

I've bumped react-scripts to V2 (beta).

Still get same error - TypeError: matcher.apply is not a function

[bugzpodder]

Change your code to import { toMatchImageSnapshot } from 'jest-image-snapshot'; and it should work. (notice the curly braces)

[basher]

Change your code to import { toMatchImageSnapshot } from 'jest-image-snapshot'; and it should work. (notice the curly braces)

@bugzpodder Thanks Jack. Why didn't I spot that?!