How to test vue

in a project, how to use vue for unit testing. For example, I want to test uploading a file, parsing the file into json, and sending it to the backend to get the returned value

Mar.01,2021
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-64f5-1b303cb-2bce1.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b303cb-2bce1.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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