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[Amforth] First release of ./test subdir
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From: Erich W. <ew....@na...> - 2020-12-18 22:07:31
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Dear AmForthers,
2020-11-02 I wrote:
> 3. Add testing scripts --- I have a set of scripts for that, but I
> have not run this stuff yet. However, in my opinion adding a
> working test suite is far more important at the moment, than
> anything else.
>
> This includes preparing some hardware with 4 relevant target boards
> in order to simplify the process.
>
I have committed r2456 with an added ./test tree.
It features one board (avr8-at644p) and a handful of test cases:
> ./bin/grok-test-log.pl tmp/unit-test.log
> TESTING addition
> INCORRECT RESULT: t{ 1 1 + -> 10 }t
> 2/3 ok, (1 failed)
> TESTING subtraction
> INCORRECT RESULT: t{ 21 4 - -> 16 }t
> 4/5 ok, (1 failed)
> TESTING multiplication
> INCORRECT RESULT: t{ $ffff -1 * -> $efff }t
> 3/4 ok, (1 failed)
> Summary:
> 9/12 ok, (3 failed)
Feel free to experiment. This is by no means ready for primetime
or complete. I add the text of the Howto below. Yes its lengthy.
But it wouldn't be worth your time if it was much shorter.
I am awaiting you comments, ideas, contributions.
Thank you for your patience and time!
Stay healthy!
Norhtern winter solstice upcoming in less than 3 days!
Cheers,
Erich
--- ./trunk/test/Howto.txt -------------------------------------------
* test
How to run this stuff?
** prolog
This new "test" tree is a "release early" thing. I can run "make
test" on exactly my specific target board. I have written only a
handful of tests in order to demonstrate the tree structure and the
scripts. It probably needs a few more scripts and iterations to get
this all into a clean state.
While preparing this I realized that I probably do things quite a
bit different. Here is why:
Firstly, when I started with AmForth (version 2.1) neither
"amforth-upload.py" let alone "amforth-shell.py" existed. They came
in version 2.7 and 3.2 respectively. I remember using
"tools/am4up.c" from within minicom and maybe other exiting hacks.
Secondly, since sending comments to the controller were clearly a
waste of time, I did, what any "good (tm)" Unix citizen would do: I
wrote a few (perl) scripts as filters to make this more pleasant.
"fs.unfold" and "fs.trim" --- they are included in
: trunk/test/bin
These scripts are quite simple.
- fs.unfold :: will read the given input line by line. If a line
starts with the pattern '^[#]*include\s+' then the next word is
used as a file name (no spaces allowed). The file name is
expected to be relative to the current directory. There is no
searching and thus no error-multiple-files-found to handle. If
the path/name does not exist, too bad, the script will bail out!
To make the tree structure look identical in all projects, I use
symlinks to point into the relevant source tree.
If the file is found, its content will be added verbatim to the
output stream, of course resolving any new include statements if
present (recursively call the script itself again).
The output is annotated with text markers, the resulting output
is there to be read by human eyes.
- fs.trim :: is removing comments, trailing whitespace, empty
lines. It compresses whitespace after the first word (I like the
indentation to be kept, it makes reading more pleasant while the
code is uploading.
And in the Makefile I will unfold by program.fs file, trim it and
then uplaod it. Any error makes the pipeline "Fail early!"
I switched to amforth-upload.py when it became available for the
upload part. However, I stayed with an old version (4.0), because I
did not like something about the newer version.
Then along came "amforth-shell.py". It is spectacularly useful for
newcomers. However: it needs a nicely populated tree and it changes
the uploaded source code behind my neck (e.g. replacing PORTA by
the appropriate value). While I do agree that this is nice for
others, I hate it. I will not learn, that I forgot to define
something. This will bite me when "away from home" without the
nicely populated tree of useful files, of course.
After that the "#require" thing came along. for similar reasons I
don't like it, and therefore I wrote another script to delete
these lines: "fs.del_require".
The astute reader may have noticed, that in my little world
comments are comments:
: \ #include
: \ #require
are just comments. They are ignored.
So, this is why things are set up like they are:
- no searching
- bail out on the slightest error
- be strict to make this experiment /reproducible/
In the interactive world, by all means use amforth-shell.py if you
like!
** preparations
As usual you will need all external software, to make this run. In
my case this is at least (you hopefully get the idea):
: bash perl python make wine/AvrAsm2 avrdude minicom
Then there are a few /important/ symlinks.
1.
: trunk/avr8/Atmel -> your/local/path/to/AvrAssembler2
This is referenced in
: trunk/test/firmware/avr8-at644p/Makefile
to find the Atmel assembler (run with wine)
2.
: trunk/test/firmware/avr8-at644p/lib
: trunk/test/firmware/avr8-at644p/lib-avr8
which point back into the source code tree. This is my way to find
files like the Hayes tester
: include lib/forth2012/tester/tester-amforth.frt
or any other loadable forth code.
These symlinks are currently checked in, so nothing to do.
And there are a number of variables in
: trunk/test/Makefile
: trunk/firmware/avr8-at644p/Makefile
describing the programmer and the serial interface. These should
maybe go into separate files to be included ...
** directory tree explained
: trunk
: +-- avr8
: | +-- Atmel -> .local.path.to/AvrAssembler2
: |
: +-- test
: | +-- Makefile
: | +-- bin
: | | +-- amforth-upload-4.0.py
: | | +-- fs.del_require
: | | +-- fs.trim
: | | +-- fs.unfold
: | | +-- grok-test-log.pl
: | |
: | +-- cases
: | | +-- common
: | | | +-- double
: | | | | +-- t_2over.frt
: | | | +-- t_arithmetic.fs
: | | +-- avr8
: | |
: | +-- firmware
: | +-- avr8-at644p
: | +-- Makefile
: | +-- dict_appl.inc
: | +-- dict_appl_core.inc
: | +-- first.fs
: | +-- lib -> ../../../common/lib
: | +-- lib-avr8 -> ../../../avr8/lib
: | +-- testfirmware.asm
: | +-- testfirmware.fs
: | +-- words
: | +-- applturnkey.asm
: | +-- qmark.asm
- "test" is the new subdirectory.
- "test/bin" holds hopefully all needed scripts.
- "test/firmware" holds subdirectories for specific
"architecture"-"target board" combinations. An obvious new
candidate would be "avr8-duemilanove" or similar.
- "test/cases" holds a tree of test case files.
** prepare a given target board
: make firmware TARGET=avr8-at644p
: make firmware-install TARGET=avr8-at644p
Please note that the exact configuration of your target boards need
possibly new subdirectories, specific values for cpu speed, baud
rate, and serial interface, maybe much more.
This would also be the place to include more .asm functions.
"firmware" and "firmware-install" are make targets in
: firmware/$arch-$target/Makefile
They are called from the top level Makefile.
I resisted the urge to create a superfancy single session make.
While modern and sexy it is close to unpenetrable if you have not
used this before.
** run tests
: make upload-tester TARGET=avr8-at644p
: make test TARGET=avr8-at644p
Uploading the hayes tester is a separate step. The relevant file
can be amended to include any desired .frt files, of course.
** write new tests
Well, this is hopefully simple, get inspired by the few examples
available.
** Epilog
As said, this is "minimal art work".
Don't be afraid to experiment with it.
My goal is to make it simple for anyone to actually run the test
suite.
It should be simple to add more test cases. The structure should
maybe follow the structure in the lib source directories.
It should be possible to add a new board for any supported
architecture with modest effort.
--
May the Forth be with you ...
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