* fix: Workaround `postconf` write settle logic
After updating `main.cf`, to avoid an enforced delay from reading the config by postfix tools, we can ensure the modified time is at least 2 seconds in the past as a workaround. This should be ok with our usage AFAIK.
Shaves off 2+ seconds roughly off each container startup, reduces roughly 2+ minutes off tests.
* chore: Only modify `mtime` if less than 2 seconds ago
- Slight improvement by avoiding unnecessary writes with a conditional check on the util method.
- Can more comfortably call this during `postfix reload` in the change detection cycle now.
- Identified other tests that'd benefit from this, created a helper method to call instead of copy/paste.
- The `setup email restrict` command also did a modification and reload. Added util method here too.
* tests(fix): `mail_smtponly.bats` should wait for Postfix
- `postfix reload` fails if the service is not ready yet.
- `service postfix reload` and `/etc/init.d/postfix reload` presumably wait until it is ready? (as these work regardless)
* chore: Review feedback - Move reload method into utilities
- `disabled_clamav_spamassassin`:
- Just shuffling the test order around, and removing the restart test at the end which doesn't make sense.
- `postscreen`:
- Now uses common helper for getting container IP
- Does not appear to need the `NET_ADMIN` capability?
- Reduced startup time for the 2nd container + additional context about it's relevance.
- Test cases are largely the same, but refactored the `nc` alternative that properly waits it's turn. This only needs to run once. Added additional commentary and made into a generic method if needed in other tests.
- `fail2ban`:
- Use the common container IP helper method.
- Postscreen isn't affecting this test, it's not required to do the much slower exchange with the mail server when sending a login failure.
- IP being passed into ENV is no longer necessary.
- `sleep 5` in the related test cases doesn't seem necessary, can better rely on polling with timeout.
- `sleep 10` for `setup.sh` also doesn't appear to be necessary.
- `postgrey`:
- Reduced POSTGREY_DELAY to 3, which shaves a fair amount of wasted time while still verifying the delay works.
- One of the checks in `main.cf` doesn't seem to need to know about the earlier spamhaus portion of the line to work, removed.
- Better test case descriptions.
- Improved log matching via standard method that better documents the expected triplet under test.
- Removed a redundant whitelist file and test that didn't seem to have any relevance. Added a TODO with additional notes about a concern with these tests.
- Reduced test time as 8 second timeouts from `-w 8` don't appear to be required, better to poll with grep instead.
- Replaced `wc -l` commands with a new method to assert expected line count, better enabling assertions on the actual output.
- `undef_spam_subject`:
- Split to two separate test cases, and initialize each container in their case instead of `setup_file()`, allowing for using the default `teardown()` method (and slight benefit if running in parallel).
- `permit_docker`:
- Not a parallel test, but I realized that the repeat helper methods don't necessarily play well with `run` as the command (can cause false positive of what was successful).
Allows for using `load` with an absolute path instead of a relative one, which makes it possible to group tests into different directories.
Parallel tests differ slightly, loading the newer `helper/common.bash` and `helper/setup.bash` files instead of the older `test_helper/common.bash` which serial tests continue to use.
- `test_helper.bats` needs more work than this PR provides to be compatible with parallel tests, so must remain as a serial test for now.
- `spam_bounced.bats` had failures as a serial test, but works well converted to a parallel test in a future commit.
