The coverage of the Vuejs unit test contains other dependent code for the file under test

problem description

use Mocha+Karma+Chai+Webpack for unit testing of Vue, Istanbul output coverage report.
coverage contains the code on which the file under test depends;

related codes

in the file under test

   

can this situation be solved through configuration, or can it only be so?

Aug.30,2021
MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1b3b0a9-4eec7.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b3b0a9-4eec7.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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