Fix divisibleBy when the item isn't a number.

The spec doesn't actually say this one--there's no "when the type is a
number", but that seems like an oversight, since it doesn't otherwise
specify what should happen and that's how all other number-based
constraints work.

2 files changed, 4 insertions, 0 deletions

diff --git a/jsonschema.py b/jsonschema.py
index c504986..d00835b 100644
--- a/jsonschema.py
+++ b/jsonschema.py
@@ -504,6 +504,9 @@ class Validator(object):
             self.error("%r is not one of %r" % (instance, enums))
 
     def validate_divisibleBy(self, dB, instance, schema):
+        if not self.is_type(instance, "number"):
+            return
+
         if isinstance(dB, float):
             mod = instance % dB
             failed = (mod > EPSILON) and (dB - mod) > EPSILON
diff --git a/tests.py b/tests.py
index c451f5d..9e6133d 100644
--- a/tests.py
+++ b/tests.py
@@ -242,6 +242,7 @@ class TestValidate(ParameterizedTestCase, unittest.TestCase):
     validate("x", {"type": ["string", "number"], "maximum": 10})
     validate(1, {"type": ["integer", "object"], "properties": {"x": {}}})
     validate(1, {"type": ["integer", "array"], "items": {"type": "string"}})
+    validate("x", {"type": ["integer", "string"], "divisibleBy": 10})
 
     def test_additionalProperties_allowed_by_default(self):
         schema = {