STP #867
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STP #867
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troglobit
approved these changes
Dec 17, 2024
Signed-off-by: Joachim Wiberg <[email protected]>
- Helper to get a set of nodes, using a formatted path - Helper to get a single node, using a formatted path
This convention is now well established, so it seems silly to have to repeat it in every test.
The somewhat clumsy construct of resolving a logical port name to its
physical counterpart has been with us from Infamy's inception:
_, physical_port = env.ltop.xlate(logical_node, logical_port)
This is needlessly verbose. Since devices already have access to the
mappings which applies to it, make them easy to access:
target = env.attach("target")
# Get physical port names via the subscript operator
target["data0"]
Using `sys.argv[0]` does not quite achieve the effect we want, namely
that any (test-case, $PYTHONHASHSEED) tuple should always default to
the same transport.
For example, the following two examples should always use the same
transport:
$ make PYTHONHASHSEED=1337 test-sh
infamy0:test$ ./case/ietf_system/hostname/test.py
$ make PYTHONHASHSEED=1337 test-sh
infamy0:test$ cd ./case/ietf_system/hostname
infamy0:hostname$ ./test.py
But, since their argv[0]'s are different, they don't.
Therefore use the _last two components_ of argv[0]'s full path
instead. This should:
- Spread the allocation over an entire suite run, since the
penultimate component is usually the test name.
- Keep the allocation stable when test code is modified (which is
common during debugging of failing tests)
- Avoid instabilities stemming from the local storage location (i.e.,
home directory names etc.)
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