Change tests invocation in appveyor.yml

appveyor.yml

@@ -113,7 +113,7 @@ install:
   # compiled extensions and are not provided as pre-built wheel packages,
   # pip will build them from source using the MSVC compiler matching the
   # target Python version and architecture
-  - "%CMD_IN_ENV% pip install nose wheel"
+  - "%CMD_IN_ENV% pip install wheel"
 
   # This is workaround for solving an issue caused by CMake not finding an
   # appropriate compilet for Visual Studio 9 2008 Win64. This workaround was
@@ -144,7 +144,7 @@ build_script:
 
 test_script:
   # Run the project tests
-  - "%CMD_IN_ENV% python setup.py nosetests"
+  - python tests.py
 
 after_test:
   # If tests are successful, create binary packages for the project.