From b456e4f25b933789df253d1e72e3cb83ad5ab998 Mon Sep 17 00:00:00 2001
From: Fred Drake <fdrake@acm.org>
Date: Tue, 31 Dec 2002 07:16:16 +0000
Subject: [PATCH] Make sure PrettyPrinter methods that mirror the module-level
 convenience functions isreadable() and isrecursive() work the same way as the
 convenience functions.

---
 Lib/test/test_pprint.py | 30 +++++++++++++++++++++++++++---
 1 file changed, 27 insertions(+), 3 deletions(-)

diff --git a/Lib/test/test_pprint.py b/Lib/test/test_pprint.py
index e31e583121b..0e6559d6b5f 100644
--- a/Lib/test/test_pprint.py
+++ b/Lib/test/test_pprint.py
@@ -1,11 +1,12 @@
 import pprint
+import test.test_support
 import unittest
-from test import test_support
 
 try:
     uni = unicode
 except NameError:
-    def uni(x):return x
+    def uni(x):
+        return x
 
 
 class QueryTestCase(unittest.TestCase):
@@ -18,12 +19,19 @@ class QueryTestCase(unittest.TestCase):
     def test_basic(self):
         # Verify .isrecursive() and .isreadable() w/o recursion
         verify = self.assert_
+        pp = pprint.PrettyPrinter()
         for safe in (2, 2.0, 2j, "abc", [3], (2,2), {3: 3}, uni("yaddayadda"),
                      self.a, self.b):
+            # module-level convenience functions
             verify(not pprint.isrecursive(safe),
                    "expected not isrecursive for " + `safe`)
             verify(pprint.isreadable(safe),
                    "expected isreadable for " + `safe`)
+            # PrettyPrinter methods
+            verify(not pp.isrecursive(safe),
+                   "expected not isrecursive for " + `safe`)
+            verify(pp.isreadable(safe),
+                   "expected isreadable for " + `safe`)
 
     def test_knotted(self):
         # Verify .isrecursive() and .isreadable() w/ recursion
@@ -34,10 +42,13 @@ class QueryTestCase(unittest.TestCase):
         self.d[0] = self.d[1] = self.d[2] = self.d
 
         verify = self.assert_
+        pp = pprint.PrettyPrinter()
 
         for icky in self.a, self.b, self.d, (self.d, self.d):
             verify(pprint.isrecursive(icky), "expected isrecursive")
             verify(not pprint.isreadable(icky),  "expected not isreadable")
+            verify(pp.isrecursive(icky), "expected isrecursive")
+            verify(not pp.isreadable(icky),  "expected not isreadable")
 
         # Break the cycles.
         self.d.clear()
@@ -45,19 +56,32 @@ class QueryTestCase(unittest.TestCase):
         del self.b[:]
 
         for safe in self.a, self.b, self.d, (self.d, self.d):
+            # module-level convenience functions
             verify(not pprint.isrecursive(safe),
                    "expected not isrecursive for " + `safe`)
             verify(pprint.isreadable(safe),
                    "expected isreadable for " + `safe`)
+            # PrettyPrinter methods
+            verify(not pp.isrecursive(safe),
+                   "expected not isrecursive for " + `safe`)
+            verify(pp.isreadable(safe),
+                   "expected isreadable for " + `safe`)
 
     def test_unreadable(self):
         # Not recursive but not readable anyway
         verify = self.assert_
+        pp = pprint.PrettyPrinter()
         for unreadable in type(3), pprint, pprint.isrecursive:
+            # module-level convenience functions
             verify(not pprint.isrecursive(unreadable),
                    "expected not isrecursive for " + `unreadable`)
             verify(not pprint.isreadable(unreadable),
                    "expected not isreadable for " + `unreadable`)
+            # PrettyPrinter methods
+            verify(not pp.isrecursive(unreadable),
+                   "expected not isrecursive for " + `unreadable`)
+            verify(not pp.isreadable(unreadable),
+                   "expected not isreadable for " + `unreadable`)
 
     def test_same_as_repr(self):
         # Simple objects and small containers that should be same as repr()
@@ -118,7 +142,7 @@ class DottedPrettyPrinter(pprint.PrettyPrinter):
 
 
 def test_main():
-    test_support.run_unittest(QueryTestCase)
+    test.test_support.run_unittest(QueryTestCase)
 
 
 if __name__ == "__main__":