This mixes some manual work (IWYU pragmas, a better solution to the Arduino
preprocessor macros problem) with automated running of the tools. At this
point, it would be too much work to separate these into distinct commits, and
there isn't that much value to doing so.
There are still some things we could do to make things more robust, as some of
the headers need to be in a certain order, which happens to be in the same sort
order used by IWYU (`testing/*` files need to come after certain headers than
include `Arduino.h`), but it's probably not worth the clutter of adding an `#if
1` just to stop IWYU from re-ordering them.
I tried to get `#pragma push_macro("max")/pop_macro("max")` to work, but ended
up getting completely nonsensical compilation errors, so I gave up on it.
Signed-off-by: Michael Richters <gedankenexperimenter@gmail.com>
This adds a googletest-based test harness (with googletest pulled into
`testing/googletest`, so we have a fixed state of it), and a few test
cases that demonstrate its use.
Original work by Eric Paniagua in #898, with minor cleanups by Gergely
Nagy.
Signed-off-by: Eric Paniagua <epaniagua@google.com>
Signed-off-by: Gergely Nagy <algernon@keyboard.io>
