This folder contains Collapse OS’ automated testing suite. To run, it needs
tools/emul
to be built. You can run all tests with make
.
This folder tests zasm's assembling capabilities by assembling test source files and compare the results with expected binaries. These binaries used to be tested with a golden standard assembler, scas, but at some point compatibility with scas was broken, so we test against previously generated binaries, making those tests essentially regression tests.
Those reference binaries sometimes change, especially when we update code in core libraries because some tests include them. In this case, we have to update binaries to the new expected value by being extra careful not to introduce a regression in test references.
Those tests target specific routines to test and test them using
tools/emul/runbin
which:
A
is zero. If it's not, we're in error and we display the
value of A
.Test source code has no harnessing and is written in a very “hands on” approach. At the moment, debugging a test failure is a bit tricky because the error code often doesn't tell us much.
The convention is to keep a testNum
counter variable around and call
nexttest
after each success so that we can easily have an idea of where we
fail.
Then, if you need to debug the cause of a failure, well, you're on your own. However, there are tricks.
unit/runtests.sh <name of file to test>
to target a specific test unit.halt
to see the value of A
at any given moment: it will be your
reported error code (if 0, runbin will report a success).Those tests are in the form of shell “replay” files. Every “.replay” file in this folder contains the contents to type in the shell. That contents is piped through the shell and the output is then compared with the corresponding “.expected” file. If they match exactly, the test passes.