bpo-38614: Use test.support.SHORT_TIMEOUT constant (GH-17566)
Replace hardcoded timeout constants in tests with SHORT_TIMEOUT of
test.support, so it's easier to ajdust this timeout for all tests at
once.
SHORT_TIMEOUT is 30 seconds by default, but it can be longer
depending on --timeout command line option.
The change makes almost all timeouts longer, except
test_reap_children() of test_support which is made 2x shorter:
SHORT_TIMEOUT should be enough. If this test starts to fail,
LONG_TIMEOUT should be used instead.
Uniformize also "from test import support" import in some test files.
diff --git a/Lib/test/test_socketserver.py b/Lib/test/test_socketserver.py
index 8aed4b6..85382a0 100644
--- a/Lib/test/test_socketserver.py
+++ b/Lib/test/test_socketserver.py
@@ -36,7 +36,7 @@
# Remember real select() to avoid interferences with mocking
_real_select = select.select
-def receive(sock, n, timeout=20):
+def receive(sock, n, timeout=test.support.SHORT_TIMEOUT):
r, w, x = _real_select([sock], [], [], timeout)
if sock in r:
return sock.recv(n)