Tolerate Hypothesis being missing (no 2.6, 3.2, or 3.3 support).

Author: mithrandi

.travis.yml

@@ -11,7 +11,8 @@ python:
   - "pypy3"
 
 install:
-  - travis_retry pip install -r requirements.txt -r requirements-dev.txt
+  - travis_retry pip install -r requirements.txt
+  - if [ "$TRAVIS_PYTHON_VERSION" != "2.6" -a "$TRAVIS_PYTHON_VERSION" != "3.2" -a "$TRAVIS_PYTHON_VERSION" != "3.3" ]; then travis_retry pip install hypothesis; fi
   - if [ "$TRAVIS_PYTHON_VERSION" == "3.2" ]; then travis_retry pip install 'coverage<4'; fi
   - travis_retry pip install coveralls
 

tests.py

@@ -10,7 +10,11 @@
 import jsonpointer
 import sys
 import string
-from hypothesis import given, note, strategies as st
+try:
+    import hypothesis
+    from hypothesis import strategies as st
+except ImportError:
+    hypothesis = None
 
 
 class ApplyPatchTestCase(unittest.TestCase):
@@ -520,24 +524,24 @@ def test_replace_missing(self):
         self.assertRaises(jsonpatch.JsonPatchConflict, jsonpatch.apply_patch, src, patch_obj)
 
 
-json_st = st.recursive(
-    st.one_of([
-        st.none(),
-        st.booleans(),
-        st.floats(allow_nan=False),
-        st.text(string.printable)]),
-    lambda children:
-    st.lists(children)
-    | st.dictionaries(st.text(string.printable), children))
+if hypothesis is not None:
+    json_st = st.recursive(
+        st.one_of([
+            st.none(),
+            st.booleans(),
+            st.floats(allow_nan=False),
+            st.text(string.printable)]),
+        lambda children:
+        st.lists(children)
+        | st.dictionaries(st.text(string.printable), children))
 
-
-class RoundtripTests(unittest.TestCase):
-    @given(json_st, json_st)
-    def test_roundtrip(self, src, dst):
-        patch = jsonpatch.JsonPatch.from_diff(src, dst, False)
-        note('Patch: %s' % (patch,))
-        res = patch.apply(src)
-        self.assertEqual(res, dst)
+    class RoundtripTests(unittest.TestCase):
+        @hypothesis.given(json_st, json_st)
+        def test_roundtrip(self, src, dst):
+            patch = jsonpatch.JsonPatch.from_diff(src, dst, False)
+            hypothesis.note('Patch: %s' % (patch,))
+            res = patch.apply(src)
+            self.assertEqual(res, dst)
 
 
 if __name__ == '__main__':
@@ -553,7 +557,8 @@ def get_suite():
         suite.addTest(unittest.makeSuite(InvalidInputTests))
         suite.addTest(unittest.makeSuite(ConflictTests))
         suite.addTest(unittest.makeSuite(OptimizationTests))
-        suite.addTest(unittest.makeSuite(RoundtripTests))
+        if hypothesis is not None:
+            suite.addTest(unittest.makeSuite(RoundtripTests))
         return suite