Use a larger amount of data for tests such as the interrupted_write
tests that depend on filling up an OS pipe so that they work properly
on systems configured with large pipe buffers.
diff --git a/Lib/subprocess.py b/Lib/subprocess.py
index aa3e217..e01cbd7 100644
--- a/Lib/subprocess.py
+++ b/Lib/subprocess.py
@@ -166,7 +166,7 @@
'/bin/ls'
check_output(*popenargs, **kwargs):
- Run command with arguments and return its output as a byte string.
+ Run command with arguments and return its output.
If the exit code was non-zero it raises a CalledProcessError. The
CalledProcessError object will have the return code in the returncode
@@ -547,7 +547,7 @@
def check_output(*popenargs, timeout=None, **kwargs):
- r"""Run command with arguments and return its output as a byte string.
+ r"""Run command with arguments and return its output.
If the exit code was non-zero it raises a CalledProcessError. The
CalledProcessError object will have the return code in the returncode
@@ -565,6 +565,9 @@
... "ls -l non_existent_file ; exit 0"],
... stderr=STDOUT)
b'ls: non_existent_file: No such file or directory\n'
+
+ If universal_newlines=True is passed, the return value will be a
+ string rather than bytes.
"""
if 'stdout' in kwargs:
raise ValueError('stdout argument not allowed, it will be overridden.')
diff --git a/Lib/test/support.py b/Lib/test/support.py
index 19989ac..f2c3434 100644
--- a/Lib/test/support.py
+++ b/Lib/test/support.py
@@ -574,9 +574,9 @@
# A constant likely larger than the underlying OS pipe buffer size.
-# Windows limit seems to be around 512B, and most Unix kernels have a 64K pipe
-# buffer size: take 1M to be sure.
-PIPE_MAX_SIZE = 1024 * 1024
+# Windows limit seems to be around 512B, and many Unix kernels have a 64K pipe
+# buffer size or 16*PAGE_SIZE: take a few megs to be sure. This
+PIPE_MAX_SIZE = 3 * 1000 * 1000
# decorator for skipping tests on non-IEEE 754 platforms