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Make error handling in BZ2File.{readable,seekable,writable,fileno} consistent with TextIOWrapper.

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Also, add tests for these methods.
This commit is contained in:
Nadeem Vawda 2011-11-30 17:39:30 +02:00
parent 3ff069ebc6
commit 44ae4a2a22
2 changed files with 59 additions and 4 deletions
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57
Lib/test/test_bz2.py
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@ -348,8 +348,63 @@ class BZ2FileTest(BaseTest):
def testFileno(self):
self.createTempFile()
with open(self.filename, 'rb') as rawf:
with BZ2File(fileobj=rawf) as bz2f:
bz2f = BZ2File(fileobj=rawf)
try:
self.assertEqual(bz2f.fileno(), rawf.fileno())
finally:
bz2f.close()
self.assertRaises(ValueError, bz2f.fileno)
def testSeekable(self):
bz2f = BZ2File(fileobj=BytesIO(self.DATA))
try:
self.assertTrue(bz2f.seekable())
bz2f.read()
self.assertTrue(bz2f.seekable())
finally:
bz2f.close()
self.assertRaises(ValueError, bz2f.seekable)
bz2f = BZ2File(fileobj=BytesIO(), mode="w")
try:
self.assertFalse(bz2f.seekable())
finally:
bz2f.close()
self.assertRaises(ValueError, bz2f.seekable)
def testReadable(self):
bz2f = BZ2File(fileobj=BytesIO(self.DATA))
try:
self.assertTrue(bz2f.readable())
bz2f.read()
self.assertTrue(bz2f.readable())
finally:
bz2f.close()
self.assertRaises(ValueError, bz2f.readable)
bz2f = BZ2File(fileobj=BytesIO(), mode="w")
try:
self.assertFalse(bz2f.readable())
finally:
bz2f.close()
self.assertRaises(ValueError, bz2f.readable)
def testWritable(self):
bz2f = BZ2File(fileobj=BytesIO(self.DATA))
try:
self.assertFalse(bz2f.writable())
bz2f.read()
self.assertFalse(bz2f.writable())
finally:
bz2f.close()
self.assertRaises(ValueError, bz2f.writable)
bz2f = BZ2File(fileobj=BytesIO(), mode="w")
try:
self.assertTrue(bz2f.writable())
finally:
bz2f.close()
self.assertRaises(ValueError, bz2f.writable)
def testOpenDel(self):
self.createTempFile()