Travis CI migration (#109)

* Get Windows environment working on Travis
* Ensure order of unit test execution doesn't cause failues

.travis.yml

@@ -1,30 +1,29 @@
-language: python
-python:
-  - '3.6'
-  - '3.7'
-  - '3.8'
+language: shell
+
+env:
+  - PYTHON_VERSION=3.6
+  - PYTHON_VERSION=3.7
+  - PYTHON_VERSION=3.8
+
+os: 
+  - linux
+  - windows
+
+before_install:
+  - source ./preinstall.sh
+
 install:
-  - sudo apt-get update
-  - wget https://repo.continuum.io/miniconda/Miniconda3-latest-Linux-x86_64.sh
-  # install in batch mode i.e. no input
-  - bash Miniconda3-latest-Linux-x86_64.sh -b -p $HOME/conda
-  - export PATH="$HOME/conda/bin:$PATH"
-  # clear bash cache table
-  - hash -r
-  - conda config --set always_yes yes
-  - conda config --set changeps1 no
-  - conda update -q conda
-  - conda config --add channels conda-forge
-  - conda config --set channel_priority strict
-  - conda env create -q -f tcrmenv.yml python=$TRAVIS_PYTHON_VERSION 
-  - source activate tcrm
+  - source ./postinstall.sh
+
 branches:
   except:
     - config
     - notebooks
+
 script:
   - python installer/setup.py build_ext -i
   - nosetests -v --with-coverage --cover-package=.
+
 after_success: coveralls
 notifications:
   slack:

postinstall.sh

@@ -0,0 +1,46 @@
+# begin installing miniconda
+if [[ "$TRAVIS_OS_NAME" != "windows" ]]; then
+    echo "installing miniconda for posix";
+    bash $HOME/download/miniconda.sh -b -u -p $MINICONDA_PATH;
+elif  [[ "$TRAVIS_OS_NAME" == "windows" ]]; then
+    echo "folder $MINICONDA_SUB_PATH does not exist"
+    echo "installing miniconda for windows";
+    choco install miniconda3 --params="'/JustMe /AddToPath:1 /D:$MINICONDA_PATH_WIN'";
+fi;
+# end installing miniconda
+
+export PATH="$MINICONDA_PATH:$MINICONDA_SUB_PATH:$MINICONDA_LIB_BIN_PATH:$PATH";
+
+# begin checking miniconda existance
+echo "checking if folder $MINICONDA_SUB_PATH exists"
+if [[ -d $MINICONDA_SUB_PATH ]]; then
+    echo "folder $MINICONDA_SUB_PATH exists"
+else
+    echo "folder $MINICONDA_SUB_PATH does not exist"
+fi;
+# end checking miniconda existance
+
+source $MINICONDA_PATH/etc/profile.d/conda.sh;
+hash -r;
+echo $TRAVIS_OS_NAME
+echo $PYTHON_VERSION
+python --version
+
+if [[ "$TRAVIS_OS_NAME" == "windows" ]]; then
+    echo "Removing mpi4py from environment for windows build"
+    echo "Package not available in conda channels"
+    sed -i '/mpi4py/d' ./tcrmenv.yml
+fi
+
+conda config --set always_yes yes --set changeps1 no;
+conda update -q conda;
+conda config --add channels conda-forge;
+conda config --set channel_priority strict;
+# Useful for debugging any issues with conda
+conda info -a
+
+echo "Create TCRM environment"
+conda env create -q -f tcrmenv.yml python=$PYTHON_VERSION;
+conda activate tcrm
+python --version
+conda list

preinstall.sh

@@ -0,0 +1,24 @@
+if [[ "$TRAVIS_OS_NAME" != "windows" ]]; then
+    export MINICONDA_PATH=$HOME/miniconda;
+    export MINICONDA_SUB_PATH=$MINICONDA_PATH/bin;
+elif [[ "$TRAVIS_OS_NAME" == "windows" ]]; then
+    export MINICONDA_PATH=$HOME/miniconda;
+    export MINICONDA_PATH_WIN=`cygpath --windows $MINICONDA_PATH`;
+    export MINICONDA_SUB_PATH=$MINICONDA_PATH/Scripts;
+fi;
+export MINICONDA_LIB_BIN_PATH=$MINICONDA_PATH/Library/bin;
+  # Obtain miniconda installer
+if [[ "$TRAVIS_OS_NAME" != "windows" ]]; then
+    mkdir -p $HOME/download;
+    if [[ "$TRAVIS_OS_NAME" == "linux" ]]; then
+        echo "downloading miniconda.sh for linux";
+        wget https://repo.continuum.io/miniconda/Miniconda3-latest-Linux-x86_64.sh -O $HOME/download/miniconda.sh;
+    elif  [[ "$TRAVIS_OS_NAME" == "osx" ]]; then
+        echo "downloading miniconda.sh for osx";
+        wget https://repo.continuum.io/miniconda/Miniconda3-latest-MacOSX-x86_64.sh -O $HOME/download/miniconda.sh;
+    fi;
+fi;
+  # Install openssl for Windows
+if [[ "$TRAVIS_OS_NAME" == "windows" ]]; then
+    choco install openssl.light;
+fi;

tests/test_processMultipliers.py

@@ -21,7 +21,7 @@
 try:
     from . import pathLocate
 except:
-    from unittests import pathLocate
+    from tests import pathLocate
 
 # Add parent folder to python path
 unittest_dir = pathLocate.getUnitTestDirectory()
@@ -250,8 +250,8 @@ def test_generate_syn_mult_img(self):
 
         shutil.rmtree(dir_path)
 
-    def test_computeOutputExtentIfInvalid(self):
-        """Test createRaster returns a gdal dataset"""
+    def test_resetOutputExtentIfInvalid(self):
+        """Test computation of output extent"""
 
         # Write a .nc file to test with dummy data. This is the gust file
         f_nc = tempfile.NamedTemporaryFile(suffix='.nc', prefix='test_processMultipliers', delete=False)
@@ -335,6 +335,7 @@ def test_xprocessMult_A(self):
 
 if __name__ == "__main__":
     # Suite = unittest.makeSuite(TestProcessMultipliers, 'test_x')
+    unittest.TestLoader.sortTestMethodsUsing = None
     Suite = unittest.makeSuite(TestProcessMultipliers, 'test')
     Runner = unittest.TextTestRunner()
     Runner.run(Suite)