Set JSON charsetjson-text

2 files changed, 3 insertions, 2 deletions

diff --git a/testtools/content_type.py b/testtools/content_type.py
index c37e385..a08ef31 100644
--- a/testtools/content_type.py
+++ b/testtools/content_type.py
@@ -42,6 +42,7 @@ class ContentType(object):
         return self.type == 'text' or self._text_override
 
 
-JSON = ContentType('application', 'json', text_override=True)
+JSON = ContentType(
+    'application', 'json', {'charset': 'utf8'}, text_override=True)
 
 UTF8_TEXT = ContentType('text', 'plain', {'charset': 'utf8'})
diff --git a/testtools/tests/test_content_type.py b/testtools/tests/test_content_type.py
index df149c9..f81718b 100644
--- a/testtools/tests/test_content_type.py
+++ b/testtools/tests/test_content_type.py
@@ -64,7 +64,7 @@ class TestBuiltinContentTypes(TestCase):
         # The JSON content type represents implictly UTF-8 application/json.
         self.assertThat(JSON.type, Equals('application'))
         self.assertThat(JSON.subtype, Equals('json'))
-        self.assertThat(JSON.parameters, Equals({}))
+        self.assertThat(JSON.parameters, Equals({'charset': 'utf8'}))
         self.assertThat(JSON.is_text(), Equals(True))