Jest coverage report in html missing coverage values

Question

I am unit testing my ReactJS app with Jest and have added configuration to get the code coverage. The coverage works well on cli but when I try to export coverage report as html the values corresponding to each file are not shown in the report. Here is my jest.config.json:

{
    "roots": [
        "test"
    ], 
    "collectCoverage": true,
    "coverageReporters": ["text","html"],
    "coverageDirectory": "<rootDir>/coverage/"
}

And here is my report generated in coverage folder inside index.html file:

As can be seen the numbers are missing. What coud be the reason when the text report has correct values shown as well. It happens only with html report.

gregtheross · Accepted Answer · 2020-02-06 18:20:52Z

3

I had this as well. Updating the package istanbul-reports to the latest version (3.0.0 at the time) fixed the issue.

edited Feb 6, 2020 at 18:20

answered Feb 6, 2020 at 17:48

gregtheross

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3 Comments

David Lozzi Over a year ago

One can use npm list istanbul-reports to see what other libraries are referencing this library, and update those libraries accordingly

Dipesh Sukhia Over a year ago

@David Lozzi how to upgrade istanbul-reports dependencies

Brendon Over a year ago

updating istanbul-reports to latest doesnt seem to work. using jest: 23.1.0. node v8.10.0. using legacy.

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