[test] add test case for dumping float

- #92

pyswagger/tests/data/v2_0/schema/floatDump/swagger.json

@@ -0,0 +1,24 @@
+{
+   "swagger":"2.0",
+   "host":"http://test.com",
+   "basePath":"/v1",
+   "definitions":{
+      "Location":{
+         "title":"Location",
+         "type":"object",
+         "properties":{
+            "lon":{
+              "type":"number",
+              "example":86.12,
+              "description":"Longitude"
+            },
+            "lat":{
+              "type":"number",
+              "example":56.123,
+              "description":"Latitude"
+            }
+         },
+         "required":["lon", "lat"]
+      }
+   }
+}

pyswagger/tests/v2_0/test_prim.py

@@ -179,7 +179,7 @@ def test_model_bool(self):
         """ test a model containing boolean """
         d = self.app.resolve("#/definitions/model_bool")
 
-        dv = d._prim_(dict(bool_val=True), self.app.prim_factory) 
+        dv = d._prim_(dict(bool_val=True), self.app.prim_factory)
         # try to access it
         self.assertEqual(dv.bool_val, True)
 
@@ -213,6 +213,14 @@ def test_read_only(self):
         resp = io.Response(op)
         resp.apply_with(0, '{"protected":1}') # allowed
 
+    def test_float_dump(self):
+        """ failed to dump an object with float property
+
+        refer to issue: https://github.com/mission-liao/pyswagger/issues/92
+        """
+        app = App.create(get_test_data_folder(version='2.0', which=os.path.join('schema', 'floatDump')))
+        app.dump() # should not raise exception
+
 
 class HeaderTestCase(unittest.TestCase):
     """ test for Header object """
@@ -413,7 +421,7 @@ def setUpClass(kls):
 
     def test_unknown(self):
         p = self.app.resolve('#/paths/~1t/put')
-        self.assertRaises(ValueError, p, p1='tom', p2='mary', p3='qoo', p4='unknown') 
+        self.assertRaises(ValueError, p, p1='tom', p2='mary', p3='qoo', p4='unknown')
 
 
 class PrimitiveExtensionTestCase(unittest.TestCase):