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Merge pull request #162582 from JJJollyjim/cntr-test

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nixos/tests: fix flaky cntr test
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Jörg Thalheim 2022-03-03 10:40:23 +00:00 committed by GitHub
parent 0f0fec6678 126ce87b0c
commit d34f7085a9
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GPG key ID: 4AEE18F83AFDEB23
1 changed files with 16 additions and 4 deletions
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20
nixos/tests/cntr.nix
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@ -28,10 +28,16 @@ let
testScript = ''
start_all()
${backend}.wait_for_unit("${backend}-nginx.service")
result = ${backend}.wait_until_succeeds(
"cntr attach -t ${backend} nginx sh -- -c 'curl localhost | grep Hello'"
${backend}.wait_for_open_port(8181)
# For some reason, the cntr command hangs when run without the &.
# As such, we have to do some messy things to ensure we check the exitcode and output in a race-condition-safe manner
${backend}.execute(
"(cntr attach -t ${backend} nginx sh -- -c 'curl localhost | grep Hello' > /tmp/result; echo $? > /tmp/exitcode; touch /tmp/done) &"
)
assert "Hello" in result
${backend}.wait_for_file("/tmp/done")
assert "0" == ${backend}.succeed("cat /tmp/exitcode").strip(), "non-zero exit code"
assert "Hello" in ${backend}.succeed("cat /tmp/result"), "no greeting in output"
'';
};
@ -54,7 +60,13 @@ let
testScript = ''
machine.start()
machine.wait_for_unit("container@test.service")
machine.succeed("cntr attach test sh -- -c 'ping -c5 172.16.0.1'")
# I haven't observed the same hanging behaviour in this version as in the OCI version which necessetates this messy invocation, but it's probably better to be safe than sorry and use it here as well
machine.execute(
"(cntr attach test sh -- -c 'ping -c5 172.16.0.1'; echo $? > /tmp/exitcode; touch /tmp/done) &"
)
machine.wait_for_file("/tmp/done")
assert "0" == machine.succeed("cat /tmp/exitcode").strip(), "non-zero exit code"
'';
};
in {