Import wiredtiger: c45301668c5fd6856fffe99a1ed766e23977c517 from branch mongodb-4.4

ref: e8bf2e5fcb..c45301668c
for: 4.4.11

WT-5009       Migrate remaining wiredtiger-perf-lsm tests to Evergreen
WT-5743       Rewrite cells when the transaction ids are cleared for VLCS
WT-5939       Fix naming conflict resulting in "cannot remove directory" error in test_config06 (OSX only)
WT-6077       Add new stats to track compact progress
WT-7250       Fix the test to perform explicit eviction instead of relying on low cache size
WT-7494       Add Python test to trigger update restore eviction during recovery
WT-7885       Ensure WiredTiger testing uses tcmalloc where possible
WT-8026       Run PPC/zSeries/macOS mainline builds less frequently in Evergreen
WT-8067       Fix the code that ensures to insert the newest history store value as full update
WT-8116       Fix issues related to inheritance in the cpp testing framework
WT-8147       Detect invalid syntax in cppsuite configs
WT-8168       Fix unused variables in search near cpp tests
WT-8199       Make s_all accept Python PEP8 compliant line breaks
WT-8203       Fix the layering violation in accessing the page
WT-8204       Fix possible race condition in "wt7989_compact_checkpoint" CSuite test
WT-8214       Only publish the docs from the WiredTiger develop Evergreen project
WT-8225       Fix data race in zstd get context
WT-8226       Fix largest_key failed to consider prepared update

1 files changed, 6 insertions, 1 deletions

diff --git a/src/third_party/wiredtiger/test/suite/wttest.py b/src/third_party/wiredtiger/test/suite/wttest.py
index 01c4f315f9c..07e5b0b6610 100755
--- a/src/third_party/wiredtiger/test/suite/wttest.py
+++ b/src/third_party/wiredtiger/test/suite/wttest.py
@@ -780,7 +780,12 @@ class WiredTigerTestCase(unittest.TestCase):
         'test_file.test_file.test_funcname(scen1.scen2.scen3)'.
         So transform '(', but remove final ')'.
         """
-        return self.shortid().translate(str.maketrans('($[]/ ','______', ')'))
+        name = self.shortid().translate(str.maketrans('($[]/ ','______', ')'))
+
+        # On OS/X, we can get name conflicts if names differ by case. Upper
+        # case letters are uncommon in our python class and method names, so
+        # we lowercase them and prefix with '@', e.g. "AbC" -> "@ab@c".
+        return re.sub(r'[A-Z]', lambda x: '@' + x.group(0).lower(), name)
 
     def className(self):
         return self.__class__.__name__