add --notimingintensive; block from github jobstiming_intensive

this provides a front-end option to disable tests marked
as timing_intensive, all of which are in test_pool, which are more
fragile and aren't consistent on the
github runners.   also remove /reduce unnecessary time.sleep()
from two other pool tests that are not timing intensive.

note that this removes test_hanging_connect_within_overflow
from the github runs via the timing_intensive requirement.

I've also removed MockReconnectTest from exclusions as those are
really important tests and they use mocks so should not have
platform dependent issues.   Need to see what the
windows failures are.

Change-Id: Icb3d284a2a952e2495d80fa91e22e0b32a54340f

1 files changed, 12 insertions, 0 deletions

diff --git a/lib/sqlalchemy/testing/plugin/plugin_base.py b/lib/sqlalchemy/testing/plugin/plugin_base.py
index b5f2a3e0b..34e3c5760 100644
--- a/lib/sqlalchemy/testing/plugin/plugin_base.py
+++ b/lib/sqlalchemy/testing/plugin/plugin_base.py
@@ -122,6 +122,12 @@ def setup_options(make_option):
         help="Don't run memory profiling tests",
     )
     make_option(
+        "--notimingintensive",
+        action="store_true",
+        dest="notimingintensive",
+        help="Don't run timing intensive tests",
+    )
+    make_option(
         "--profile-sort",
         type="string",
         default="cumulative",
@@ -347,6 +353,12 @@ def _set_nomemory(opt, file_config):
 
 
 @pre
+def _set_notimingintensive(opt, file_config):
+    if opt.notimingintensive:
+        exclude_tags.add("timing_intensive")
+
+
+@pre
 def _monkeypatch_cdecimal(options, file_config):
     if options.cdecimal:
         import cdecimal