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Merge pull request #184 from bourque/test-ccsds-header
Test CCSDS header across all instrument packet definitions
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"""Tests aspects of the decommutation process that is generic to all instruments""" | ||
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import pytest | ||
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from imap_processing import imap_module_directory | ||
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# Scrape the repo for all packet definition XML files | ||
xtce_document_list = imap_module_directory.glob("*/packet_definitions/*.xml") | ||
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@pytest.fixture(params=xtce_document_list, scope="session") | ||
def xtce_document(request): | ||
if "idex" in str(request.param): | ||
pytest.xfail( | ||
"Packet Definition does not include properly formatted CCSDS Header" | ||
) | ||
else: | ||
return request.param | ||
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def test_ccsds_header(xtce_document): | ||
"""Test if the XTCE document contains the proper CCSDS header information""" | ||
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# Define what is expected in the XTCE document | ||
header_keys = [ | ||
("VERSION", "UINT3"), | ||
("TYPE", "UINT1"), | ||
("SEC_HDR_FLG", "UINT1"), | ||
("PKT_APID", "UINT11"), | ||
("SEQ_FLGS", "UINT2"), | ||
("SRC_SEQ_CTR", "UINT14"), | ||
("PKT_LEN", "UINT16"), | ||
] | ||
header_entry_list = ( | ||
"<xtce:EntryList>" | ||
' <xtce:ParameterRefEntry parameterRef="VERSION" />' | ||
' <xtce:ParameterRefEntry parameterRef="TYPE" />' | ||
' <xtce:ParameterRefEntry parameterRef="SEC_HDR_FLG" />' | ||
' <xtce:ParameterRefEntry parameterRef="PKT_APID" />' | ||
' <xtce:ParameterRefEntry parameterRef="SEQ_FLGS" />' | ||
' <xtce:ParameterRefEntry parameterRef="SRC_SEQ_CTR" />' | ||
' <xtce:ParameterRefEntry parameterRef="PKT_LEN" />' | ||
"</xtce:EntryList>" | ||
) | ||
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# Read in the XTCE document | ||
with open(xtce_document) as f: | ||
document = f.read() | ||
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# Check that each header key is defined as a Parameter | ||
for key in header_keys: | ||
assert ( | ||
f'<xtce:Parameter name="{key[0]}" parameterTypeRef="{key[1]}"' in document | ||
or f'<xtce:Parameter name="{key[0]}" parameterTypeRef="{key[1].lower()}"' | ||
in document | ||
) | ||
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# Check that the header is defined as a SequenceContainer in the XTCE file | ||
# First remove discrepancies in whitespace, tabs, and newlines | ||
header_entry_list = ( | ||
header_entry_list.replace(" ", "").replace("\t", "").replace("\n", "") | ||
) | ||
document = document.replace(" ", "").replace("\t", "").replace("\n", "") | ||
assert header_entry_list in document |
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