[PATCH-for-10.0 v3 2/5] tests/functional: Add a decorator for skipping tests on particular OS

["Philippe Mathieu-Daudé" <philmd@linaro.org>]

Since tests might be failing on some operating systems,
introduce the skipIfOperatingSystem() decorator.

Acked-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
---
 tests/functional/qemu_test/__init__.py   |  2 +-
 tests/functional/qemu_test/decorators.py | 15 ++++++++++++++-
 2 files changed, 15 insertions(+), 2 deletions(-)

diff --git a/tests/functional/qemu_test/__init__.py b/tests/functional/qemu_test/__init__.py
index 45f7befa374..af41c2c6a22 100644
--- a/tests/functional/qemu_test/__init__.py
+++ b/tests/functional/qemu_test/__init__.py
@@ -15,6 +15,6 @@
 from .linuxkernel import LinuxKernelTest
 from .decorators import skipIfMissingCommands, skipIfNotMachine, \
     skipFlakyTest, skipUntrustedTest, skipBigDataTest, skipSlowTest, \
-    skipIfMissingImports
+    skipIfMissingImports, skipIfOperatingSystem
 from .archive import archive_extract
 from .uncompress import uncompress
diff --git a/tests/functional/qemu_test/decorators.py b/tests/functional/qemu_test/decorators.py
index 1651eb739a7..50d29de533d 100644
--- a/tests/functional/qemu_test/decorators.py
+++ b/tests/functional/qemu_test/decorators.py
@@ -5,7 +5,7 @@
 import importlib
 import os
 import platform
-from unittest import skipUnless
+from unittest import skipIf, skipUnless
 
 from .cmd import which
 
@@ -26,6 +26,19 @@ def skipIfMissingCommands(*args):
     return skipUnless(has_cmds, 'required command(s) "%s" not installed' %
                                 ", ".join(args))
 
+'''
+Decorator to skip execution of a test if the current
+host operating system does match one of the prohibited
+ones.
+Example
+
+  @skipIfOperatingSystem("Linux", "Darwin")
+'''
+def skipIfOperatingSystem(*args):
+    return skipIf(platform.system() in args,
+                  'running on an OS (%s) that is not able to run this test' %
+                  ", ".join(args))
+
 '''
 Decorator to skip execution of a test if the current
 host machine does not match one of the permitted
-- 
2.47.1