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Python ships with a difflib(3) module which is used in the pdtest(1)
utility. The Differ.compare() routine is rather expensive, especially
when the set of input text becomes "large" (a few thousand lines). Use
the less expensive unified_diff() routine instead which does not suffer
from that cost. From the sigrok-test perspective the resulting data is
as usable.
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Adapt all tests that require it to use the old behaviour of assuming an
initial pin value of 0 (or whatever was previously hardcoded in the PD).
for now (this will likely see some changes later).
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Option values are strings, not numbers.
This fixes:
$ ./decoder/pdtest -s jitter
Testcase: jitter/toim4243
Protocol decoder: jitter
Channel clk=3
Channel sig=2
Error: %d format: a number is required, not str
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Help says -l should list tests. Make it do so.
You can still do "-l uart" to see only uart tests, but -l by itself now
does what you expect.
Signed-off-by: Karl Palsson <karlp@tweak.net.au>
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Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
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Address several minor style nits: Remove trailing empty lines in source
files. Declare 'static' auto variables before non-static variables.
Re-use the result of a division instead of running the calculation again.
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On one hand the exit(3) API might limit the range of values that can get
communicated to callers (a single byte is used in some implementations).
On the other hand wait(2) might interpret specific meaning into some of
the returned values (abnormal cause of termination, like unhandled
signals). So the use of error counts as exit codes for processes can be
severely constrained. For specific non-zero values of error counts, an
exit code of zero might be seen at the caller's side (modulo calculation
or truncation).
Don't pass error or difference counts to exit(3). Instead communicate
the kind of termination (error or difference or success) in exit codes
which reliably can get evaluated by callers.
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Make the pdtest(1) executable return a non-zero exit code for errors
during test execution (as before) as well as for differences in the
decoder output (that's the change). Return either the number of errors
seen, or the number of tests which saw different output. Only return
zero in the absence of errors and differences.
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This allows for longer test-case names.
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This is a slightly modified version of the PD test suite that was part
of libsigrokdecode previously.
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