CI external-tape-format test failing sporadically

Summary

Title is self explanatory. This test is failing from time to time, for now it is pretty infrequent but we should address it at some point to not get to the same point that we got with queue cleanup and eviction where we had to disable some tests.

Steps to reproduce

Run the test in CI enough times to recreate the condition. It always fails, but some times it is reported as a success.

What is the current bug behaviour?

The test always fails randomly

What is the expected correct behaviour?

The test should not fail.

Relevant logs and/or screenshots

Sample failed job: https://gitlab.cern.ch/cta/CTA/-/jobs/39061179

This happens for successful and failed jobs...

[==========] Running 2 tests from 1 test suite.
[----------] Global test environment set-up.
[----------] 2 tests from OsmReaderTest
[ RUN      ] OsmReaderTest.ReadOsmTape
unknown file: Failure
C++ exception with description "Could not open device file: -n Errno=2: No such file or directory
/usr/lib64/libctacommon.so.0(cta::exception::Backtrace::Backtrace(bool)+0x6b) [0x7f87ea6e272f]
/usr/lib64/libctacommon.so.0(cta::exception::Exception::Exception(std::basic_string_view<char, std::char_traits<char> >, bool)+0x91) [0x7f87ea6e3747]
/usr/lib64/libctacommon.so.0(cta::exception::Errnum::Errnum(int, std::basic_string_view<char, std::char_traits<char> >)+0x77) [0x7f87ea6e3181]
/usr/lib64/libctacommon.so.0(cta::exception::Errnum::Errnum(std::basic_string_view<char, std::char_traits<char> >)+0x4d) [0x7f87ea6e33b1]
/usr/lib64/libctacommon.so.0(cta::exception::Errnum::throwOnMinusOne(long, std::basic_string_view<char, std::char_traits<char> >)+0x5c) [0x7f87ea6e3628]
cta-osmReaderTest() [0x4a4b84]
cta-osmReaderTest() [0x4b816b]
cta-osmReaderTest() [0x4b82fb]
cta-osmReaderTest() [0x4a4567]
cta-osmReaderTest() [0x45dbe7]
cta-osmReaderTest() [0x458f79]
/usr/lib64/libgtest.so.1.11.0(+0x4fe0c) [0x7f87ec706e0c]
/usr/lib64/libgtest.so.1.11.0(testing::Test::Run()+0xd6) [0x7f87ec6e7826]
/usr/lib64/libgtest.so.1.11.0(testing::TestInfo::Run()+0x1a0) [0x7f87ec6e79f0]
/usr/lib64/libgtest.so.1.11.0(testing::TestSuite::Run()+0xd9) [0x7f87ec6e7af9]
/usr/lib64/libgtest.so.1.11.0(testing::internal::UnitTestImpl::RunAllTests()+0x4e5) [0x7f87ec6f6fc5]
/usr/lib64/libgtest.so.1.11.0(testing::UnitTest::Run()+0x1a8) [0x7f87ec6f47c8]
cta-osmReaderTest() [0x45b0a4]
cta-osmReaderTest() [0x459f6b]
/usr/lib64/libc.so.6(+0x3feb0) [0x7f87e4fddeb0]
/usr/lib64/libc.so.6(__libc_start_main+0x80) [0x7f87e4fddf60]
cta-osmReaderTest() [0x458e85]
" thrown in the test body.
[  FAILED  ] OsmReaderTest.ReadOsmTape (18 ms)
[ RUN      ] OsmReaderTest.CleanDrive
/builds/cta/CTA/build_rpm/RPM/BUILD/cta-5-7405460git8aba923b/tapeserver/castor/tape/tapeserver/file/OsmReaderTest.cpp:189: Failure
Expected: (std::string::npos) != (logToCheck.find("Cleaner successfully detected tape contains data")), actual: 18446744073709551615 vs 18446744073709551615
[  FAILED  ] OsmReaderTest.CleanDrive (2 ms)

Possible causes

Race condition? mHVTL not configured in time before the test starts? Could not open device file: -n Errno=2: No such file or directory There are several causes, see comments.