Improve CI tests

- Test sdist package on all platforms
- Include Python 2.7 and 32-bit versions on Windows

.appveyor.yml

@@ -2,11 +2,14 @@ version: 1.0.{build}
 image: Visual Studio 2015
 environment:
   matrix:
+  - PATH: C:\Python27\;C:\Python27\Scripts\;%PATH%
+  - PATH: C:\Python27-x64\;C:\Python27-x64\Scripts\;%PATH%
+  - PATH: C:\Python35\;C:\Python35\Scripts\;%PATH%
   - PATH: C:\Python35-x64\;C:\Python35-x64\Scripts\;%PATH%
-  - PATH: C:\Miniconda35-x64\;C:\Miniconda35-x64\Scripts\;%PATH%
 install:
 - cmd: git submodule update -q --init --recursive
 build_script:
-- cmd: pip install .
+- cmd: python setup.py sdist
+- cmd: pip install dist\cmake_example-0.0.1.zip
 test_script:
-- cmd: python test.py
+- cmd: python tests\test.py

.travis.yml

@@ -23,6 +23,7 @@ before_install:
 - virtualenv -p python$PYTHON venv
 - source venv/bin/activate
 install:
-- pip install .
+- python setup.py sdist
+- pip install dist/*.tar.gz
 script:
-- python test.py
+- python tests/test.py

MANIFEST.in

@@ -0,0 +1,4 @@
+include README.md LICENSE
+global-include CMakeLists.txt *.cmake
+recursive-include src *
+recursive-include pybind11/include *.h

test.py

@@ -1,3 +0,0 @@
-import cmake_example
-
-print(cmake_example.add(1, 2))

tests/test.py

@@ -0,0 +1,3 @@
+from cmake_example import add
+
+assert add(1, 2) == 3