Added unit tests which checks for responseHeaders

Author: fhasanaj28

tests/mock-data/response/eng-doc-entities.json

@@ -150,5 +150,13 @@
     "rblJe": 29, 
     "rexJe": 656, 
     "rliJe": 35
+  },
+  "responseHeaders": {
+    "connection": "keep-alive",
+    "content-length": "637",
+    "content-type": "application/json",
+    "date": "Wed, 02 Mar 2016 23:09:51 GMT",
+    "server": "openresty/1.7.4.1",
+    "x-rosetteapi-request-id": "2be64f9f-6246-4366-aab3-16f635ed87a5"
   }
 }

tests/test_rosette_api.py

@@ -166,16 +166,20 @@ def test_retry500():
 # Test that getting the info about the API is being called correctly
 @httpretty.activate
 def test_responseHeaders():
+    httpretty.register_uri(httpretty.POST, "https://api.rosette.com/rest/v1/entities",
+                           status=200,
+                           body=get_file_content(response_file_dir + "eng-doc-entities.json"),
+                           content_type="application/json")
+    # need to mock /info call too because the api will call it implicitly
     with open(response_file_dir + "info.json", "r") as info_file:
         body = info_file.read()
         httpretty.register_uri(httpretty.GET, "https://api.rosette.com/rest/v1/info",
                                body=body, status=200, content_type="application/json")
-
-    test = RosetteTest(None)
-    result = test.api.info()
-    assert result["buildNumber"] == "6bafb29d"
-    assert result["name"] == "Rosette API"
-    assert result["versionChecked"] is True
+        httpretty.register_uri(httpretty.POST, "https://api.rosette.com/rest/v1/info",
+                               body=body, status=200, content_type="application/json")
+    test = RosetteTest("eng-doc-entities")
+    result = test.api.entities(test.params)
+    assert ("responseHeaders" in result) == True
 
 
 @httpretty.activate