TST: test installing from sdist on TravisCI.

.travis.yml

@@ -62,6 +62,8 @@ matrix:
       env: USE_WHEEL=1
     - python: 3.5
       env: USE_WHEEL=1
+    - python: 3.5
+      env: USE_SDIST=1
     - python: 2.7
       env:
        - PYTHONOPTIMIZE=2

tools/travis-test.sh

@@ -71,7 +71,7 @@ setup_chroot()
   #   linux32 python setup.py build
   # when travis updates to ubuntu 14.04
   #
-  # Numpy may not distinquish between 64 and 32 bit atlas in the
+  # Numpy may not distinguish between 64 and 32 bit ATLAS in the
   # configuration stage.
   DIR=$1
   set -u
@@ -149,6 +149,19 @@ if [ -n "$USE_WHEEL" ] && [ $# -eq 0 ]; then
   pip install nose
   popd
   run_test
+elif [ -n "$USE_SDIST" ] && [ $# -eq 0 ]; then
+  # use an up-to-date pip / setuptools inside the venv
+  $PIP install -U virtualenv
+  $PYTHON setup.py sdist
+  # Make another virtualenv to install into
+  virtualenv --python=`which $PYTHON` venv-for-wheel
+  . venv-for-wheel/bin/activate
+  # Move out of source directory to avoid finding local numpy
+  pushd dist
+  pip install numpy*
+  pip install nose
+  popd
+  run_test
 elif [ -n "$USE_CHROOT" ] && [ $# -eq 0 ]; then
   DIR=/chroot
   setup_chroot $DIR