From ce4a9c901905624216bc5ae7ae631ecb94c2d66e Mon Sep 17 00:00:00 2001
From: Neal Norwitz <nnorwitz@gmail.com>
Date: Sun, 9 Apr 2006 08:36:46 +0000
Subject: [PATCH] Fix tests so they pass in -R mode

---
 Lib/test/test_decimal.py  | 13 ++++++++-----
 Lib/test/test_difflib.py  |  8 ++++++--
 Lib/test/test_warnings.py |  4 ++++
 3 files changed, 18 insertions(+), 7 deletions(-)

diff --git a/Lib/test/test_decimal.py b/Lib/test/test_decimal.py
index 844cee04214..f3f9215221f 100644
--- a/Lib/test/test_decimal.py
+++ b/Lib/test/test_decimal.py
@@ -42,11 +42,13 @@ Signals = getcontext().flags.keys()
 
 # Tests are built around these assumed context defaults.
 # test_main() restores the original context.
-ORIGINAL_CONTEXT = getcontext().copy()
-DefaultContext.prec = 9
-DefaultContext.rounding = ROUND_HALF_EVEN
-DefaultContext.traps = dict.fromkeys(Signals, 0)
-setcontext(DefaultContext)
+def init():
+    global ORIGINAL_CONTEXT
+    ORIGINAL_CONTEXT = getcontext().copy()
+    DefaultContext.prec = 9
+    DefaultContext.rounding = ROUND_HALF_EVEN
+    DefaultContext.traps = dict.fromkeys(Signals, 0)
+    setcontext(DefaultContext)
 
 TESTDATADIR = 'decimaltestdata'
 if __name__ == '__main__':
@@ -1069,6 +1071,7 @@ def test_main(arith=False, verbose=None):
     is enabled in regrtest.py
     """
 
+    init()
     global TEST_ALL
     TEST_ALL = arith or is_resource_enabled('decimal')
 
diff --git a/Lib/test/test_difflib.py b/Lib/test/test_difflib.py
index 52feef07680..83fad1548de 100644
--- a/Lib/test/test_difflib.py
+++ b/Lib/test/test_difflib.py
@@ -152,6 +152,10 @@ class TestSFpatches(unittest.TestCase):
         difflib.SequenceMatcher(None, old, new).get_opcodes()
 
 
-Doctests = doctest.DocTestSuite(difflib)
+def test_main():
+    difflib.HtmlDiff._default_prefix = 0
+    Doctests = doctest.DocTestSuite(difflib)
+    run_unittest(TestSFpatches, TestSFbugs, Doctests)
 
-run_unittest(TestSFpatches, TestSFbugs, Doctests)
+if __name__ == '__main__':
+    test_main()
diff --git a/Lib/test/test_warnings.py b/Lib/test/test_warnings.py
index b7061c1b5fa..5a3f5216310 100644
--- a/Lib/test/test_warnings.py
+++ b/Lib/test/test_warnings.py
@@ -84,5 +84,9 @@ class TestModule(unittest.TestCase):
 def test_main(verbose=None):
     test_support.run_unittest(TestModule)
 
+# Obscure hack so that this test passes after reloads (regrtest -R).
+if '__warningregistry__' in globals():
+    del globals()['__warningregistry__']
+
 if __name__ == "__main__":
     test_main(verbose=True)