[Qemu-devel] [PATCH v3 18/26] tests: add output filter to python I/O tests helper

["Daniel P. Berrange" <berrange@redhat.com>]

Add a 'log' method to iotests.py which prints messages to
stdout, with optional filtering of data. Port over some
standard filters for present in the shell common.filter
code.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
---
 tests/qemu-iotests/iotests.py | 25 ++++++++++++++++++++++++-
 1 file changed, 24 insertions(+), 1 deletion(-)

diff --git a/tests/qemu-iotests/iotests.py b/tests/qemu-iotests/iotests.py
index 51e53bb..8499e1b 100644
--- a/tests/qemu-iotests/iotests.py
+++ b/tests/qemu-iotests/iotests.py
@@ -30,7 +30,8 @@ import struct
 
 __all__ = ['imgfmt', 'imgproto', 'test_dir' 'qemu_img', 'qemu_io',
            'VM', 'QMPTestCase', 'notrun', 'main', 'verify_image_format',
-           'verify_platform']
+           'verify_platform', 'filter_test_dir', 'filter_win32',
+           'filter_qemu_io', 'filter_chown', 'log']
 
 # This will not work if arguments contain spaces but is necessary if we
 # want to support the override options that ./check supports.
@@ -105,6 +106,28 @@ def create_image(name, size):
         i = i + 512
     file.close()
 
+test_dir_re = re.compile(r"%s" % test_dir)
+def filter_test_dir(msg):
+    return test_dir_re.sub("TEST_DIR", msg)
+
+win32_re = re.compile(r"\r")
+def filter_win32(msg):
+    return win32_re.sub("", msg)
+
+qemu_io_re = re.compile(r"[0-9]* ops; [0-9\/:. sec]* \([0-9\/.inf]* [EPTGMKiBbytes]*\/sec and [0-9\/.inf]* ops\/sec\)")
+def filter_qemu_io(msg):
+    msg = filter_win32(msg)
+    return qemu_io_re.sub("X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)", msg)
+
+chown_re = re.compile(r"chown [0-9]+:[0-9]+")
+def filter_chown(msg):
+    return chown_re.sub("chown UID:GID", msg)
+
+def log(msg, filters=[]):
+    for flt in filters:
+        msg = flt(msg)
+    print msg
+
 # Test if 'match' is a recursive subset of 'event'
 def event_match(event, match=None):
     if match is None:
-- 
2.5.0