From 85fec5910474197439be7e62bf1136b3ee57b05c Mon Sep 17 00:00:00 2001
From: Georg Brandl <georg@python.org>
Date: Mon, 14 Aug 2006 21:45:32 +0000
Subject: Add an additional test: BZ2File write methods should raise IOError
 when file is read-only.

---
 Lib/test/test_bz2.py | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/Lib/test/test_bz2.py b/Lib/test/test_bz2.py
index 35eae1e..709850d 100644
--- a/Lib/test/test_bz2.py
+++ b/Lib/test/test_bz2.py
@@ -172,6 +172,15 @@ class BZ2FileTest(BaseTest):
         self.assertEqual(self.decompress(f.read()), self.TEXT)
         f.close()
 
+    def testWriteMethodsOnReadOnlyFile(self):
+        bz2f = BZ2File(self.filename, "w")
+        bz2f.write("abc")
+        bz2f.close()
+
+        bz2f = BZ2File(self.filename, "r")
+        self.assertRaises(IOError, bz2f.write, "a")
+        self.assertRaises(IOError, bz2f.writelines, ["a"])
+
     def testSeekForward(self):
         # "Test BZ2File.seek(150, 0)"
         self.createTempFile()
-- 
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