[TMP] Fix build until move to tox

Author: Nabellaleen

.travis.yml

@@ -9,7 +9,7 @@ before_install:
 install:
 - |
   if [ "$TEST_TYPE" = build ]; then
-    pip install pytest==3.0.2 pytest-cov pytest-benchmark coveralls six mock sqlalchemy_utils
+    pip install pytest>=3.6 pytest-cov pytest-benchmark coveralls six mock sqlalchemy_utils
     pip install -e .
     python setup.py develop
   elif [ "$TEST_TYPE" = lint ]; then

setup.py

@@ -15,6 +15,7 @@
     "graphene>=2.1.3",
     "SQLAlchemy",
     "singledispatch>=3.4.0.3",
+    "rx<3.0.0",
 ]
 try:
     import enum
@@ -48,5 +49,13 @@
     packages=find_packages(exclude=["tests"]),
     install_requires=requirements,
     setup_requires=["pytest-runner"],
-    tests_require=["pytest>=2.7.2", "mock", "sqlalchemy_utils"],
+    tests_require=[
+        "pytest>=3.6",
+        "mock",
+        "sqlalchemy_utils",
+        "pytest-cov",
+        "pytest-benchmark",
+        "coveralls",
+        "six",
+    ],
 )