Fix for #19, now all GET requests lack content type

tests/test_client.py

@@ -0,0 +1,37 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+from platform import platform
+
+from eventbrite import __version__
+from eventbrite.exceptions import InvalidResourcePath
+from eventbrite.client import Eventbrite
+
+from .base import unittest, mock
+
+
+def test_headers():
+    eventbrite = Eventbrite('12345')
+    expected_headers = {
+        u'content-type': u'application/json',
+        u'Authorization': u'Bearer 12345',
+        u'User-Agent': "eventbrite-python-sdk {version} ({system})".format(
+                version=__version__,
+                system=platform(),
+            )
+    }
+    assert eventbrite.headers == expected_headers
+
+
+def test_headers_without_content_type():
+    """Should not have content-type"""
+    eventbrite = Eventbrite('12345')
+    eventbrite.content_type_specified = False
+    expected_headers = {
+        u'Authorization': u'Bearer 12345',
+        u'User-Agent': "eventbrite-python-sdk {version} ({system})".format(
+                version=__version__,
+                system=platform(),
+            )
+    }
+    assert eventbrite.headers == expected_headers