1 files changed, 200 insertions, 0 deletions
diff --git a/testing/web-platform/tests/tools/pywebsocket/src/test/test_util.py b/testing/web-platform/tests/tools/pywebsocket/src/test/test_util.py
new file mode 100755
index 000000000..20f4ab059
--- /dev/null
+++ b/testing/web-platform/tests/tools/pywebsocket/src/test/test_util.py
@@ -0,0 +1,200 @@
+#!/usr/bin/env python
+#
+# Copyright 2011, Google Inc.
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+#     * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#     * Redistributions in binary form must reproduce the above
+# copyright notice, this list of conditions and the following disclaimer
+# in the documentation and/or other materials provided with the
+# distribution.
+#     * Neither the name of Google Inc. nor the names of its
+# contributors may be used to endorse or promote products derived from
+# this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+
+"""Tests for util module."""
+
+
+import os
+import random
+import sys
+import unittest
+
+import set_sys_path  # Update sys.path to locate mod_pywebsocket module.
+
+from mod_pywebsocket import util
+
+
+_TEST_DATA_DIR = os.path.join(os.path.split(__file__)[0], 'testdata')
+
+
+class UtilTest(unittest.TestCase):
+    """A unittest for util module."""
+
+    def test_get_stack_trace(self):
+        self.assertEqual('None\n', util.get_stack_trace())
+        try:
+            a = 1 / 0  # Intentionally raise exception.
+        except Exception:
+            trace = util.get_stack_trace()
+            self.failUnless(trace.startswith('Traceback'))
+            self.failUnless(trace.find('ZeroDivisionError') != -1)
+
+    def test_prepend_message_to_exception(self):
+        exc = Exception('World')
+        self.assertEqual('World', str(exc))
+        util.prepend_message_to_exception('Hello ', exc)
+        self.assertEqual('Hello World', str(exc))
+
+    def test_get_script_interp(self):
+        cygwin_path = 'c:\\cygwin\\bin'
+        cygwin_perl = os.path.join(cygwin_path, 'perl')
+        self.assertEqual(None, util.get_script_interp(
+            os.path.join(_TEST_DATA_DIR, 'README')))
+        self.assertEqual(None, util.get_script_interp(
+            os.path.join(_TEST_DATA_DIR, 'README'), cygwin_path))
+        self.assertEqual('/usr/bin/perl -wT', util.get_script_interp(
+            os.path.join(_TEST_DATA_DIR, 'hello.pl')))
+        self.assertEqual(cygwin_perl + ' -wT', util.get_script_interp(
+            os.path.join(_TEST_DATA_DIR, 'hello.pl'), cygwin_path))
+
+    def test_hexify(self):
+        self.assertEqual('61 7a 41 5a 30 39 20 09 0d 0a 00 ff',
+                         util.hexify('azAZ09 \t\r\n\x00\xff'))
+
+
+class RepeatedXorMaskerTest(unittest.TestCase):
+    """A unittest for RepeatedXorMasker class."""
+
+    def test_mask(self):
+        # Sample input e6,97,a5 is U+65e5 in UTF-8
+        masker = util.RepeatedXorMasker('\xff\xff\xff\xff')
+        result = masker.mask('\xe6\x97\xa5')
+        self.assertEqual('\x19\x68\x5a', result)
+
+        masker = util.RepeatedXorMasker('\x00\x00\x00\x00')
+        result = masker.mask('\xe6\x97\xa5')
+        self.assertEqual('\xe6\x97\xa5', result)
+
+        masker = util.RepeatedXorMasker('\xe6\x97\xa5\x20')
+        result = masker.mask('\xe6\x97\xa5')
+        self.assertEqual('\x00\x00\x00', result)
+
+    def test_mask_twice(self):
+        masker = util.RepeatedXorMasker('\x00\x7f\xff\x20')
+        # mask[0], mask[1], ... will be used.
+        result = masker.mask('\x00\x00\x00\x00\x00')
+        self.assertEqual('\x00\x7f\xff\x20\x00', result)
+        # mask[2], mask[0], ... will be used for the next call.
+        result = masker.mask('\x00\x00\x00\x00\x00')
+        self.assertEqual('\x7f\xff\x20\x00\x7f', result)
+
+    def test_mask_large_data(self):
+        masker = util.RepeatedXorMasker('mASk')
+        original = ''.join([chr(i % 256) for i in xrange(1000)])
+        result = masker.mask(original)
+        expected = ''.join(
+                [chr((i % 256) ^ ord('mASk'[i % 4])) for i in xrange(1000)])
+        self.assertEqual(expected, result)
+
+        masker = util.RepeatedXorMasker('MaSk')
+        first_part = 'The WebSocket Protocol enables two-way communication.'
+        result = masker.mask(first_part)
+        self.assertEqual(
+                '\x19\t6K\x1a\x0418"\x028\x0e9A\x03\x19"\x15<\x08"\rs\x0e#'
+                '\x001\x07(\x12s\x1f:\x0e~\x1c,\x18s\x08"\x0c>\x1e#\x080\n9'
+                '\x08<\x05c',
+                result)
+        second_part = 'It has two parts: a handshake and the data transfer.'
+        result = masker.mask(second_part)
+        self.assertEqual(
+                "('K%\x00 K9\x16<K=\x00!\x1f>[s\nm\t2\x05)\x12;\n&\x04s\n#"
+                "\x05s\x1f%\x04s\x0f,\x152K9\x132\x05>\x076\x19c",
+                result)
+
+
+def get_random_section(source, min_num_chunks):
+    chunks = []
+    bytes_chunked = 0
+
+    while bytes_chunked < len(source):
+        chunk_size = random.randint(
+            1,
+            min(len(source) / min_num_chunks, len(source) - bytes_chunked))
+        chunk = source[bytes_chunked:bytes_chunked + chunk_size]
+        chunks.append(chunk)
+        bytes_chunked += chunk_size
+
+    return chunks
+
+
+class InflaterDeflaterTest(unittest.TestCase):
+    """A unittest for _Inflater and _Deflater class."""
+
+    def test_inflate_deflate_default(self):
+        input = b'hello' + '-' * 30000 + b'hello'
+        inflater15 = util._Inflater(15)
+        deflater15 = util._Deflater(15)
+        inflater8 = util._Inflater(8)
+        deflater8 = util._Deflater(8)
+
+        compressed15 = deflater15.compress_and_finish(input)
+        compressed8 = deflater8.compress_and_finish(input)
+
+        inflater15.append(compressed15)
+        inflater8.append(compressed8)
+
+        self.assertNotEqual(compressed15, compressed8)
+        self.assertEqual(input, inflater15.decompress(-1))
+        self.assertEqual(input, inflater8.decompress(-1))
+
+    def test_random_section(self):
+        random.seed(a=0)
+        source = ''.join(
+            [chr(random.randint(0, 255)) for i in xrange(100 * 1024)])
+
+        chunked_input = get_random_section(source, 10)
+        print "Input chunk sizes: %r" % [len(c) for c in chunked_input]
+
+        deflater = util._Deflater(15)
+        compressed = []
+        for chunk in chunked_input:
+            compressed.append(deflater.compress(chunk))
+        compressed.append(deflater.compress_and_finish(''))
+
+        chunked_expectation = get_random_section(source, 10)
+        print ("Expectation chunk sizes: %r" %
+               [len(c) for c in chunked_expectation])
+
+        inflater = util._Inflater(15)
+        inflater.append(''.join(compressed))
+        for chunk in chunked_expectation:
+            decompressed = inflater.decompress(len(chunk))
+            self.assertEqual(chunk, decompressed)
+
+        self.assertEqual('', inflater.decompress(-1))
+
+
+if __name__ == '__main__':
+    unittest.main()
+
+
+# vi:sts=4 sw=4 et