test: Add unit tests for serialOpen, serialClose, serialRead, and ser…

[Katze719]

…ialWrite functions

[Mqxx]

Please refactor to individual files place them next to the corresponding function and suffix the files with .test.cpp

[Mqxx]

One file for all unit tests is way to large

[Mqxx]

Refactor

[Katze719]

Please refactor to individual files place them next to the corresponding function and suffix the files with .test.cpp

that feels like bloating the src folder to me, im more used to having tests in a separate test folder

[Katze719]

Please refactor to individual files place them next to the corresponding function and suffix the files with .test.cpp

anyways, where would i place my helper functions / classes that are only needed for tests

[Mqxx]

that feels like bloating the src folder to me, im more used to having tests in a separate test folder

Unit tests should not be seen as "bloat" they are also an important part in the sourcecode even though "the app could exist without them". Putting them in a separate folder would mean that you either put everything into one file, which gets pretty much unmaintainable at some point, or you could try to mimic the folder structure in the test folder of your source folder for every file which gets pretty annoying if you do any thing of refactoring like moving files around even if you don't do it often.

Placing the test files next to the actual files that they test also helps to find them more easily (that's also the reason for the .test.cpp suffix instead of a test_ prefix, because with the prefix, the files would all cluster together at one point between files that start with s and u.