Verify that checking utility availability works as expected ... ok
test_version_cmp (utils_test.UtilsExecLoggingTest.test_version_cmp)
Verify that version comparison works as expected ... ok
test_initialization (utils_test.UtilsExecProgressTest.test_initialization)
Verify that progress report can (de)initialized ... ok
test_have_kernel_module (utils_test.UtilsKernelModuleTest.test_have_kernel_module)
Test checking for kernel modules ... ok
test_initialization (utils_test.UtilsLinuxKernelVersionTest.test_initialization)
Test Linux kernel version detection ... ok

======================================================================
ERROR: test_ns_info (nvme_test.NVMeTestCase.test_ns_info)
Test namespace info
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/root/rpmbuild/BUILD/libblockdev-3.2.0/tests/nvme_test.py", line 92, in test_ns_info
    info = BlockDev.nvme_get_namespace_info(self.nvme_ns_dev)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
gi.repository.GLib.GError: g-bd-nvme-error-quark: Failed to open device '/dev/nvme0n1': No such file or directory (1)

======================================================================
FAIL: test_format (nvme_test.NVMeTestCase.test_format)
Test issuing the format command
----------------------------------------------------------------------
gi.repository.GLib.GError: g-bd-nvme-error-quark: Failed to open device '/dev/nvme0n1': No such file or directory (1)

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/root/rpmbuild/BUILD/libblockdev-3.2.0/tests/nvme_test.py", line 264, in test_format
    with self.assertRaisesRegex(GLib.GError, message):
         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
AssertionError: "Couldn't match desired LBA data block size in a device supported LBA format data sizes" does not match "g-bd-nvme-error-quark: Failed to open device '/dev/nvme0n1': No such file or directory (1)"

======================================================================
FAIL: test_sanitize_log (nvme_test.NVMeTestCase.test_sanitize_log)
Test sanitize log retrieval
----------------------------------------------------------------------
gi.repository.GLib.GError: g-bd-nvme-error-quark: Failed to open device '/dev/nvme0n1': No such file or directory (1)

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/root/rpmbuild/BUILD/libblockdev-3.2.0/tests/nvme_test.py", line 288, in test_sanitize_log
    with self.assertRaisesRegex(GLib.GError, message):
         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
AssertionError: "NVMe Get Log Page - Sanitize Status Log command error: Invalid Field in Command: A reserved coded value or an unsupported value in a defined field|NVMe Get Log Page - Sanitize Status Log command error: unrecognized" does not match "g-bd-nvme-error-quark: Failed to open device '/dev/nvme0n1': No such file or directory (1)"

======================================================================
FAIL: test_self_test (nvme_test.NVMeTestCase.test_self_test)
Test issuing the self-test command
----------------------------------------------------------------------
gi.repository.GLib.GError: g-bd-nvme-error-quark: Failed to open device '/dev/nvme0n1': No such file or directory (1)

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/root/rpmbuild/BUILD/libblockdev-3.2.0/tests/nvme_test.py", line 237, in test_self_test
    with self.assertRaisesRegex(GLib.GError, message):
         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
AssertionError: "NVMe Device Self-test command error: Invalid Command Opcode: A reserved coded value or an unsupported value in the command opcode field|NVMe Device Self-test command error: Invalid Queue Identifier: The creation of the I/O Completion Queue failed due to an invalid queue identifier specified as part of the command" does not match "g-bd-nvme-error-quark: Failed to open device '/dev/nvme0n1': No such file or directory (1)"

----------------------------------------------------------------------
Ran 431 tests in 1097.267s

FAILED (failures=3, errors=1, skipped=107) 

[guazhang@dhcp-60-96 libblockdev]$ git diff tests/utils.py 
diff --git a/tests/utils.py b/tests/utils.py
index a9b8e187..9fe93605 100644
--- a/tests/utils.py
+++ b/tests/utils.py
@@ -251,7 +251,7 @@ def find_nvme_ctrl_devs_for_subnqn(subnqn):
                         dev_paths += [path]
                 except:
                     pass
-
+    time.sleep(1)
     ret, out, err = run_command("nvme list --output-format=json --verbose")
     if ret != 0:
         raise RuntimeError("Error getting NVMe list: '%s %s'" % (out, err))
[guazhang@dhcp-60-96 libblockdev]$