Add queryparams to the head method.

Fixes #220.

2 files changed, 15 insertions, 8 deletions

diff --git a/webtest/app.py b/webtest/app.py
index 2116efe..af077bd 100644
--- a/webtest/app.py
+++ b/webtest/app.py
@@ -315,13 +315,7 @@ class TestApp(object):
         url = str(url)
         url = self._remove_fragment(url)
         if params:
-            if not isinstance(params, string_types):
-                params = urlencode(params, doseq=True)
-            if str('?') in url:
-                url += str('&')
-            else:
-                url += str('?')
-            url += params
+            url = utils.build_params(url, params)
         if str('?') in url:
             url, environ['QUERY_STRING'] = url.split(str('?'), 1)
         else:
@@ -448,7 +442,7 @@ class TestApp(object):
                                  upload_files=None,
                                  expect_errors=expect_errors)
 
-    def head(self, url, headers=None, extra_environ=None,
+    def head(self, url, params=None, headers=None, extra_environ=None,
              status=None, expect_errors=False, xhr=False):
         """
         Do a HEAD request. Similar to :meth:`~webtest.TestApp.get`.
@@ -456,6 +450,8 @@ class TestApp(object):
         :returns: :class:`webtest.TestResponse` instance.
 
         """
+        if params:
+            url = utils.build_params(url, params)
         if xhr:
             headers = self._add_xhr_header(headers)
         return self._gen_request('HEAD', url, headers=headers,
diff --git a/webtest/utils.py b/webtest/utils.py
index 9ae1377..d8f1f7f 100644
--- a/webtest/utils.py
+++ b/webtest/utils.py
@@ -80,6 +80,17 @@ def encode_params(params, content_type):
     return params
 
 
+def build_params(url, params):
+    if not isinstance(params, six.string_types):
+        params = urlencode(params, doseq=True)
+    if str('?') in url:
+        url += str('&')
+    else:
+        url += str('?')
+    url += params
+    return url
+
+
 def make_pattern(pat):
     """Find element pattern can be a regex or a callable."""
     if pat is None: