3 files changed, 48 insertions, 0 deletions
diff --git a/Lib/test/test_bz2.py b/Lib/test/test_bz2.py
index 0f8d149..cc416ed 100644
--- a/Lib/test/test_bz2.py
+++ b/Lib/test/test_bz2.py
@@ -372,6 +372,15 @@ class BZ2FileTest(BaseTest):
             bz2f.close()
         self.assertRaises(ValueError, bz2f.seekable)
 
+        src = BytesIO(self.DATA)
+        src.seekable = lambda: False
+        bz2f = BZ2File(fileobj=src)
+        try:
+            self.assertFalse(bz2f.seekable())
+        finally:
+            bz2f.close()
+        self.assertRaises(ValueError, bz2f.seekable)
+
     def testReadable(self):
         bz2f = BZ2File(fileobj=BytesIO(self.DATA))
         try:
diff --git a/Lib/test/test_htmlparser.py b/Lib/test/test_htmlparser.py
index 8c2e25e..7af9131 100644
--- a/Lib/test/test_htmlparser.py
+++ b/Lib/test/test_htmlparser.py
@@ -323,6 +323,23 @@ DOCTYPE html [
                                 ("endtag", element_lower)],
                             collector=Collector())
 
+    def test_comments(self):
+        html = ("<!-- I'm a valid comment -->"
+                '<!--me too!-->'
+                '<!------>'
+                '<!---->'
+                '<!----I have many hyphens---->'
+                '<!-- I have a > in the middle -->'
+                '<!-- and I have -- in the middle! -->')
+        expected = [('comment', " I'm a valid comment "),
+                    ('comment', 'me too!'),
+                    ('comment', '--'),
+                    ('comment', ''),
+                    ('comment', '--I have many hyphens--'),
+                    ('comment', ' I have a > in the middle '),
+                    ('comment', ' and I have -- in the middle! ')]
+        self._run_check(html, expected)
+
     def test_condcoms(self):
         html = ('<!--[if IE & !(lte IE 8)]>aren\'t<![endif]-->'
                 '<!--[if IE 8]>condcoms<![endif]-->'
@@ -426,6 +443,19 @@ class HTMLParserTolerantTestCase(HTMLParserStrictTestCase):
         # see #12888
         self.assertEqual(p.unescape('&#123; ' * 1050), '{ ' * 1050)
 
+    def test_broken_comments(self):
+        html = ('<! not really a comment >'
+                '<! not a comment either -->'
+                '<! -- close enough -->'
+                '<!!! another bogus comment !!!>')
+        expected = [
+            ('comment', ' not really a comment '),
+            ('comment', ' not a comment either --'),
+            ('comment', ' -- close enough --'),
+            ('comment', '!! another bogus comment !!!'),
+        ]
+        self._run_check(html, expected)
+
     def test_broken_condcoms(self):
         # these condcoms are missing the '--' after '<!' and before the '>'
         html = ('<![if !(IE)]>broken condcom<![endif]>'
diff --git a/Lib/test/test_lzma.py b/Lib/test/test_lzma.py
index 8d3df92..ffde557 100644
--- a/Lib/test/test_lzma.py
+++ b/Lib/test/test_lzma.py
@@ -525,6 +525,15 @@ class FileTestCase(unittest.TestCase):
             f.close()
         self.assertRaises(ValueError, f.seekable)
 
+        src = BytesIO(COMPRESSED_XZ)
+        src.seekable = lambda: False
+        f = LZMAFile(fileobj=src)
+        try:
+            self.assertFalse(f.seekable())
+        finally:
+            f.close()
+        self.assertRaises(ValueError, f.seekable)
+
     def test_readable(self):
         f = LZMAFile(fileobj=BytesIO(COMPRESSED_XZ))
         try: