bug#54435: The test mailcap-parsing-and-mailcap-mime-info forgets to restore the HOME environment variable

[Felix Dietrich]

Severity: minor
Tags: patch

Running the test ‘mailcap-parsing-and-mailcap-mime-info’ will set the
HOME environment variable to a temporary directory.  After the test the
directory is removed (thanks to the ‘ert-with-temp-directory’ macro),
but the value of the environment variable not restored, polluting the
state of a running Emacs and affecting later commands in the Emacs
session, like the vc-* commands when git cannot find its global
configuration anymore.

The patch wraps the test in a ‘let’ and ‘unwind-protect’ to restore the
value of the environment variable after the test has been run.

0001-mailcap-tests-Restore-HOME-environment-variable.patch
Description: Patch to ensure restoration of HOME environment variable

-- 
Felix Dietrich