[Python-checkins] python/dist/src/Lib/test test_mmap.py,1.30,1.31

[loewis at users.sourceforge.net]

Update of /cvsroot/python/python/dist/src/Lib/test
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv12697/Lib/test

Modified Files:
	test_mmap.py 
Log Message:
Patches #749830, #1144555: allow UNIX mmap size to default to current
file size.


Index: test_mmap.py
===================================================================
RCS file: /cvsroot/python/python/dist/src/Lib/test/test_mmap.py,v
retrieving revision 1.30
retrieving revision 1.31
diff -u -d -r1.30 -r1.31
--- test_mmap.py	13 Jan 2003 21:38:45 -0000	1.30
+++ test_mmap.py	3 Mar 2005 11:22:41 -0000	1.31
@@ -311,7 +311,43 @@
     finally:
         os.unlink(TESTFN)
 
+    # test mapping of entire file by passing 0 for map length
+    if hasattr(os, "stat"):
+        print "  Ensuring that passing 0 as map length sets map size to current file size."
+        f = open(TESTFN, "w+")
+
+        try:
+            f.write(2**16 * 'm') # Arbitrary character
+            f.close()
+
+            f = open(TESTFN, "rb+")
+            mf = mmap.mmap(f.fileno(), 0) 
+            verify(len(mf) == 2**16, "Map size should equal file size.")
+            vereq(mf.read(2**16), 2**16 * "m")
+            mf.close()
+            f.close()
 
+        finally:
+            os.unlink(TESTFN)
+    
+    # test mapping of entire file by passing 0 for map length
+    if hasattr(os, "stat"):
+        print "  Ensuring that passing 0 as map length sets map size to current file size."
+        f = open(TESTFN, "w+")
+        try:
+            f.write(2**16 * 'm') # Arbitrary character
+            f.close()
+    
+            f = open(TESTFN, "rb+")
+            mf = mmap.mmap(f.fileno(), 0) 
+            verify(len(mf) == 2**16, "Map size should equal file size.")
+            vereq(mf.read(2**16), 2**16 * "m")
+            mf.close()
+            f.close()
+    
+        finally:
+            os.unlink(TESTFN)
+    
     print ' Test passed'
 
 test_both()