unit-tests: LinuxVirtualTerminalTest.use_provided_vt fails sometimes

[Eleni Maria Stea]

When I repeatedly run the unit tests, I see some LinuxVirtualTerminalTest.use_provided_vt failures (but not every time I run the tests):

$ valgrind bin/unit-tests --gtest_repeat=10

[...]

[ RUN ] LinuxVirtualTerminalTest.use_provided_vt
unknown file: Failure
C++ exception with description "Failed to stop being a process group" thrown in the test body.
/home/eleni/staging/mir/tests/unit-tests/graphics/gbm/test_linux_virtual_terminal.cpp:160: Failure
Actual function call count doesn't match EXPECT_CALL(mock_fops, tcgetattr(fake_vt_fd, An<struct termios *>()))...
         Expected: to be called once
           Actual: never called - unsatisfied and active
/home/eleni/staging/mir/tests/unit-tests/graphics/gbm/test_linux_virtual_terminal.cpp:162: Failure
Actual function call count doesn't match EXPECT_CALL(mock_fops, tcsetattr(fake_vt_fd, 0, An<const struct termios *>()))...
         Expected: to be called once
           Actual: never called - unsatisfied and active
/home/eleni/staging/mir/tests/unit-tests/graphics/gbm/test_linux_virtual_terminal.cpp:180: Failure
Actual function call count doesn't match EXPECT_CALL(mock_fops, tcsetattr(fake_vt_fd, 0, An<const struct termios *>()))...
         Expected: to be called once
           Actual: never called - unsatisfied and active
/home/eleni/staging/mir/tests/unit-tests/graphics/gbm/test_linux_virtual_terminal.cpp:152: Failure
Actual function call count doesn't match EXPECT_CALL(mock_fops, ioctl(fake_vt_fd, 0x4B3B, An<void*>()))...
         Expected: to be called once
           Actual: never called - unsatisfied and active
/home/eleni/staging/mir/tests/unit-tests/graphics/gbm/test_linux_virtual_terminal.cpp:154: Failure
Actual function call count doesn't match EXPECT_CALL(mock_fops, ioctl(fake_vt_fd, 0x5601, An<void*>()))...
         Expected: to be called once
           Actual: never called - unsatisfied and active
/home/eleni/staging/mir/tests/unit-tests/graphics/gbm/test_linux_virtual_terminal.cpp:156: Failure
Actual function call count doesn't match EXPECT_CALL(mock_fops, ioctl(fake_vt_fd, 0x4B44, An<void*>()))...
         Expected: to be called once
           Actual: never called - unsatisfied and active
/home/eleni/staging/mir/tests/unit-tests/graphics/gbm/test_linux_virtual_terminal.cpp:186: Failure
Actual function call count doesn't match EXPECT_CALL(mock_fops, ioctl(fake_vt_fd, 0x5602, An<void*>()))...
         Expected: to be called once
           Actual: never called - unsatisfied and active
/home/eleni/staging/mir/tests/unit-tests/graphics/gbm/test_linux_virtual_terminal.cpp:145: Failure
Actual function call count doesn't match EXPECT_CALL(mock_fops, ioctl(fake_vt_fd, 0x5606, vt_num))...
         Expected: to be called once
           Actual: never called - unsatisfied and active
/home/eleni/staging/mir/tests/unit-tests/graphics/gbm/test_linux_virtual_terminal.cpp:148: Failure
Actual function call count doesn't match EXPECT_CALL(mock_fops, ioctl(fake_vt_fd, 0x5607, vt_num))...
         Expected: to be called once
           Actual: never called - unsatisfied and active
/home/eleni/staging/mir/tests/unit-tests/graphics/gbm/test_linux_virtual_terminal.cpp:158: Failure
Actual function call count doesn't match EXPECT_CALL(mock_fops, ioctl(fake_vt_fd, 0x4B45, 0x04))...
         Expected: to be called once
           Actual: never called - unsatisfied and active
/home/eleni/staging/mir/tests/unit-tests/graphics/gbm/test_linux_virtual_terminal.cpp:182: Failure
Actual function call count doesn't match EXPECT_CALL(mock_fops, ioctl(fake_vt_fd, 0x4B45, fake_kb_mode))...
         Expected: to be called once
           Actual: never called - unsatisfied and active
/home/eleni/staging/mir/tests/unit-tests/graphics/gbm/test_linux_virtual_terminal.cpp:184: Failure
Actual function call count doesn't match EXPECT_CALL(mock_fops, ioctl(fake_vt_fd, 0x4B3A, fake_kd_mode))...
         Expected: to be called once
           Actual: never called - unsatisfied and active
/home/eleni/staging/mir/tests/unit-tests/graphics/gbm/test_linux_virtual_terminal.cpp:188: Failure
Actual function call count doesn't match EXPECT_CALL(mock_fops, close(fake_vt_fd))...
         Expected: to be called once
           Actual: never called - unsatisfied and active
/home/eleni/staging/mir/tests/unit-tests/graphics/gbm/test_linux_virtual_terminal.cpp:140: Failure
Actual function call count doesn't match EXPECT_CALL(mock_fops, open(StrEq(ss.str()), _))...
         Expected: to be called once
           Actual: never called - unsatisfied and active
[ FAILED ] LinuxVirtualTerminalTest.use_provided_vt (36 ms)

[...]

[PS Jenkins bot (ps-jenkins)]

Fix committed into lp:~mir-team/mir/development-branch at revision None, scheduled for release in mir, milestone Unknown

[Timo Jyrinki (timo-jyrinki)]

Fix released in https://launchpad.net/ubuntu/+source/mir/0.0.15+13.10.20131014-0ubuntu1 (changelog at https://code.launchpad.net/~mir-team/mir/development-branch/+merge/191055).