added fix for wrong boolean value in add_callback

added tests to catch the behaviour described in getsentry#464

responses/__init__.py

@@ -62,6 +62,15 @@
 logger = logging.getLogger("responses")
 
 
+class FalseBool:
+    # used for backwards compatibility, see
+    # https://github.com/getsentry/responses/issues/464
+    def __bool__(self):
+        return False
+
+    __nonzero__ = __bool__
+
+
 def urlencoded_params_matcher(params):
     warn(
         "Function is deprecated. Use 'from responses.matchers import urlencoded_params_matcher'",
@@ -277,14 +286,15 @@ def _should_match_querystring(self, match_querystring_argument):
             return False
 
         if match_querystring_argument is not None:
-            warn(
-                (
-                    "Argument 'match_querystring' is deprecated. "
-                    "Use 'responses.matchers.query_param_matcher' or "
-                    "'responses.matchers.query_string_matcher'"
-                ),
-                DeprecationWarning,
-            )
+            if not isinstance(match_querystring_argument, FalseBool):
+                warn(
+                    (
+                        "Argument 'match_querystring' is deprecated. "
+                        "Use 'responses.matchers.query_param_matcher' or "
+                        "'responses.matchers.query_string_matcher'"
+                    ),
+                    DeprecationWarning,
+                )
             return match_querystring_argument
 
         return bool(urlparse(self.url).query)
@@ -659,7 +669,7 @@ def add_callback(
         method,
         url,
         callback,
-        match_querystring=False,
+        match_querystring=FalseBool(),
         content_type="text/plain",
         match=(),
     ):

responses/test_responses.py

@@ -559,11 +559,48 @@ def run():
     assert_reset()
 
 
-def test_callback_deprecated_argument():
+def test_callback_deprecated_stream_argument():
     with pytest.deprecated_call():
         CallbackResponse(responses.GET, "url", lambda x: x, stream=False)
 
 
+def test_callback_deprecated_match_querystring_argument():
+    with pytest.deprecated_call():
+        CallbackResponse(responses.GET, "url", lambda x: x, match_querystring=False)
+
+
+def test_callback_match_querystring_default_false():
+    """
+    Test to ensure that by default 'match_querystring' in 'add_callback' is set to False
+    and does not raise deprecation
+    see: https://github.com/getsentry/responses/issues/464 and related PR
+    """
+    body = b"test callback"
+    status = 200
+    params = {"hello": "world", "I am": "a big test"}
+    headers = {"foo": "bar"}
+    url = "http://example.com/"
+
+    def request_callback(_request):
+        return status, headers, body
+
+    @responses.activate
+    def run():
+        responses.add_callback(responses.GET, url, request_callback, content_type=None)
+        resp = requests.get(url, params=params)
+        assert resp.text == "test callback"
+        assert resp.status_code == status
+        assert "foo" in resp.headers
+
+    from _pytest.outcomes import Failed
+
+    with pytest.raises(Failed):
+        with pytest.deprecated_call():
+            run()
+
+    assert_reset()
+
+
 def test_callback_exception_result():
     result = Exception()
     url = "http://example.com/"