Skip to content
Projects
Groups
Snippets
Help
Loading...
Help
Support
Keyboard shortcuts
?
Submit feedback
Contribute to GitLab
Sign in / Register
Toggle navigation
C
cpython
Project overview
Project overview
Details
Activity
Releases
Repository
Repository
Files
Commits
Branches
Tags
Contributors
Graph
Compare
Issues
0
Issues
0
List
Boards
Labels
Milestones
Merge Requests
0
Merge Requests
0
Analytics
Analytics
Repository
Value Stream
Wiki
Wiki
Members
Members
Collapse sidebar
Close sidebar
Activity
Graph
Create a new issue
Commits
Issue Boards
Open sidebar
Kirill Smelkov
cpython
Commits
5b9eccb3
Commit
5b9eccb3
authored
Aug 28, 2012
by
Antoine Pitrou
Browse files
Options
Browse Files
Download
Email Patches
Plain Diff
Issue #15794: Relax a test case due to the deadlock detection's conservativeness.
parent
fc35ecec
Changes
1
Hide whitespace changes
Inline
Side-by-side
Showing
1 changed file
with
18 additions
and
4 deletions
+18
-4
Lib/test/test_importlib/test_locks.py
Lib/test/test_importlib/test_locks.py
+18
-4
No files found.
Lib/test/test_importlib/test_locks.py
View file @
5b9eccb3
from
importlib
import
_bootstrap
import
sys
import
time
import
unittest
import
weakref
...
...
@@ -41,6 +42,17 @@ else:
@
unittest
.
skipUnless
(
threading
,
"threads needed for this test"
)
class
DeadlockAvoidanceTests
(
unittest
.
TestCase
):
def
setUp
(
self
):
try
:
self
.
old_switchinterval
=
sys
.
getswitchinterval
()
sys
.
setswitchinterval
(
0.000001
)
except
AttributeError
:
self
.
old_switchinterval
=
None
def
tearDown
(
self
):
if
self
.
old_switchinterval
is
not
None
:
sys
.
setswitchinterval
(
self
.
old_switchinterval
)
def
run_deadlock_avoidance_test
(
self
,
create_deadlock
):
NLOCKS
=
10
locks
=
[
LockType
(
str
(
i
))
for
i
in
range
(
NLOCKS
)]
...
...
@@ -75,10 +87,12 @@ class DeadlockAvoidanceTests(unittest.TestCase):
def
test_deadlock
(
self
):
results
=
self
.
run_deadlock_avoidance_test
(
True
)
# One of the threads detected a potential deadlock on its second
# acquire() call.
self
.
assertEqual
(
results
.
count
((
True
,
False
)),
1
)
self
.
assertEqual
(
results
.
count
((
True
,
True
)),
len
(
results
)
-
1
)
# At least one of the threads detected a potential deadlock on its
# second acquire() call. It may be several of them, because the
# deadlock avoidance mechanism is conservative.
nb_deadlocks
=
results
.
count
((
True
,
False
))
self
.
assertGreaterEqual
(
nb_deadlocks
,
1
)
self
.
assertEqual
(
results
.
count
((
True
,
True
)),
len
(
results
)
-
nb_deadlocks
)
def
test_no_deadlock
(
self
):
results
=
self
.
run_deadlock_avoidance_test
(
False
)
...
...
Write
Preview
Markdown
is supported
0%
Try again
or
attach a new file
Attach a file
Cancel
You are about to add
0
people
to the discussion. Proceed with caution.
Finish editing this message first!
Cancel
Please
register
or
sign in
to comment