Pin version of hypothesis above 1.11.4.

tests/test_with_hypothesis.py

@@ -1,11 +1,14 @@
+from hypothesis import binary
+
 import pytest
 
 from cryptography.fernet import Fernet
 
+
 hypothesis = pytest.importorskip("hypothesis")
 
 
-@hypothesis.given(bytes)
+@hypothesis.given(binary())
 def test_fernet(data):
     f = Fernet(Fernet.generate_key())
     ct = f.encrypt(data)

tox.ini

@@ -8,28 +8,7 @@ deps =
     iso8601
     pretend
     pytest<2.8
-    hypothesis
-    hypothesis-pytest
-    ./vectors
-passenv = ARCHFLAGS LDFLAGS CFLAGS INCLUDE LIB LD_LIBRARY_PATH USERNAME
-commands =
-    pip list
-    python -c "from cryptography.hazmat.backends.openssl.backend import backend; print(backend.openssl_version_text())"
-    # We use parallel mode and then combine here so that coverage.py will take
-    # the paths like .tox/py34/lib/python3.4/site-packages/cryptography/__init__.py
-    # and collapse them into src/cryptography/__init__.py.
-    coverage run --parallel-mode -m pytest --capture=no --strict {posargs}
-    coverage combine
-    coverage report -m
-
-[testenv:py26]
-# This mirrors the testenv minus the hypothesis and hypothesis-test deps.
-deps =
-    coverage
-    iso8601
-    pretend
-    pytest<2.8
-    hypothesis
+    hypothesis>=1.11.4
     hypothesis-pytest
     ./vectors
 passenv = ARCHFLAGS LDFLAGS CFLAGS INCLUDE LIB LD_LIBRARY_PATH USERNAME