Fix tests being installed as a package

docs/CHANGELOG.md

@@ -4,8 +4,9 @@
 
 Release date: TBD
 
-- remove redundant `smtpdfix.typing`.
+- Removes redundant `smtpdfix.typing` module.
 - Drop support for PyPy 3.7 from testing.
+- Fixes an issue where `tests` would be installed as a package by pip. [Issue #328](https://github.com/bebleo/smtpdfix/issues/328) reported by [thedamnedrhino](https://github.com/thedamnedrhino).
 
 ## Version 0.5.0
 
@@ -18,7 +19,7 @@ Previously `smtpdfix` would load a `.env` file automatically using `python-doten
 Previous versions used port 8025 by default, as of version 0.5.0 a random port is used instead.
 
 - As of version 0.5.0 Smtpdfix no longer uses `python-dotenv` to load a `.env` file by default. [Issue #274](https://github.com/bebleo/smtpdfix/274) reported by [Emmanuel Belair (@e-belair)](https://github.com/e-belair)
-- A random unused port is used instead of the default 8025 port. [Issue #820](https://github.com/bebleo/smtpdfix/issues/280) reported by [Éloi Rivard](https://github.com/azmeuk)
+- A random unused port is used instead of the default 8025 port. [Issue #280](https://github.com/bebleo/smtpdfix/issues/280) [Éloi Rivard](https://github.com/azmeuk)
 - Replaced the deprecated key `license_file` with `license_files` as per warning during build.
 
 ## Version 0.4.2

setup.cfg

@@ -56,6 +56,12 @@ typing =
 [options.package_data]
 smtpdfix = py.typed
 
+[options.packages.find]
+exclude =
+    docs*
+    requirements*
+    tests*
+
 [tool:pytest]
 testpaths = tests