Updated DB_Helper by adding firebase methods.

venv/Lib/site-packages/gcloud/streaming/test_stream_slice.py

@@ -0,0 +1,68 @@
+import unittest2
+
+
+class Test_StreamSlice(unittest2.TestCase):
+
+    def _getTargetClass(self):
+        from gcloud.streaming.stream_slice import StreamSlice
+        return StreamSlice
+
+    def _makeOne(self, *args, **kw):
+        return self._getTargetClass()(*args, **kw)
+
+    def test_ctor(self):
+        from io import BytesIO
+        CONTENT = b'CONTENT GOES HERE'
+        MAXSIZE = 4
+        stream = BytesIO(CONTENT)
+        stream_slice = self._makeOne(stream, MAXSIZE)
+        self.assertTrue(stream_slice._stream is stream)
+        self.assertEqual(stream_slice._remaining_bytes, MAXSIZE)
+        self.assertEqual(stream_slice._max_bytes, MAXSIZE)
+        self.assertEqual(len(stream_slice), MAXSIZE)
+        self.assertEqual(stream_slice.length, MAXSIZE)
+
+    def test___nonzero___empty(self):
+        from io import BytesIO
+        CONTENT = b''
+        MAXSIZE = 0
+        stream = BytesIO(CONTENT)
+        stream_slice = self._makeOne(stream, MAXSIZE)
+        self.assertFalse(stream_slice)
+
+    def test___nonzero___nonempty(self):
+        from io import BytesIO
+        CONTENT = b'CONTENT GOES HERE'
+        MAXSIZE = 4
+        stream = BytesIO(CONTENT)
+        stream_slice = self._makeOne(stream, MAXSIZE)
+        self.assertTrue(stream_slice)
+
+    def test_read_exhausted(self):
+        from io import BytesIO
+        from six.moves import http_client
+        CONTENT = b''
+        MAXSIZE = 4
+        stream = BytesIO(CONTENT)
+        stream_slice = self._makeOne(stream, MAXSIZE)
+        with self.assertRaises(http_client.IncompleteRead):
+            stream_slice.read()
+
+    def test_read_implicit_size(self):
+        from io import BytesIO
+        CONTENT = b'CONTENT GOES HERE'
+        MAXSIZE = 4
+        stream = BytesIO(CONTENT)
+        stream_slice = self._makeOne(stream, MAXSIZE)
+        self.assertEqual(stream_slice.read(), CONTENT[:MAXSIZE])
+        self.assertEqual(stream_slice._remaining_bytes, 0)
+
+    def test_read_explicit_size(self):
+        from io import BytesIO
+        CONTENT = b'CONTENT GOES HERE'
+        MAXSIZE = 4
+        SIZE = 3
+        stream = BytesIO(CONTENT)
+        stream_slice = self._makeOne(stream, MAXSIZE)
+        self.assertEqual(stream_slice.read(SIZE), CONTENT[:SIZE])
+        self.assertEqual(stream_slice._remaining_bytes, MAXSIZE - SIZE)