adds multi-OS support to travis CI

.travis.yml

@@ -1,30 +1,88 @@
-language: python
-dist: xenial
-python:
-  - "3.5"
-  - "3.6"
-  - "3.7"
+language: bash
+
+cache:
+  directories:
+    - $HOME/miniconda3
+
+before_cache:
+  - rm -rf $CONDA_DIR/pkgs/cache
+  - rm -rf $CONDA_DIR/envs/hosts
+  - rm -rf $CONDA_DIR/conda-meta/history
+  - touch $CONDA_DIR/conda-meta/history
+
+os:
+  - linux
+  - osx
+  - windows
+
+env:
+  - PYTHON_VERSION="3.5"
+  - PYTHON_VERSION="3.6"
+  - PYTHON_VERSION="3.7"
+
+before_install:
+  - |
+    export CONDA_DIR="$HOME/miniconda3"
+    if [ "${TRAVIS_OS_NAME}" == "windows" ]; then
+        export CONDA_DIR=`cygpath -w $CONDA_DIR`
+        export CONDA_BIN_DIR="$CONDA_DIR\scripts"
+    else
+        export CONDA_BIN_DIR="$CONDA_DIR/bin"
+    fi
+    export PATH="$CONDA_BIN_DIR:$PATH"
+
 install:
-  - sudo apt-get update
-  # We do this conditionally because it saves us some downloading if the
-  # version is the same.
-  - wget https://repo.continuum.io/miniconda/Miniconda3-latest-Linux-x86_64.sh -O miniconda.sh;
-  - bash miniconda.sh -b -p $HOME/miniconda
-  - export PATH="$HOME/miniconda/bin:$PATH"
-  - hash -r
-  - conda config --set always_yes yes --set changeps1 no
-  - conda update -q --yes conda
-  # Useful for debugging any issues with conda
-  - conda info -a
-  - conda create -q -n ci-env python=$TRAVIS_PYTHON_VERSION
-  - source activate ci-env
-  - conda install -y -c conda-forge numpy scipy pandas codecov
-  - pip install -r requirements.txt
-  - python setup.py install
+  # Install Conda
+  - |
+    if [ "${TRAVIS_OS_NAME}" == "windows" ]; then
+        choco install openssl.light
+    fi
+
+    if [ -d "$CONDA_DIR" ] && [ -e "$CONDA_BIN_DIR/conda" ]; then
+        echo "Miniconda install already present from cache: $CONDA_DIR"
+        rm -rf $CONDA_DIR/envs/hosts  # Just in case...
+    else
+        echo "Installing Miniconda..."
+        rm -rf $CONDA_DIR  # Just in case...
+
+        if [ "${TRAVIS_OS_NAME}" == "windows" ]; then
+            wget https://repo.continuum.io/miniconda/Miniconda3-latest-Windows-x86_64.exe -O miniconda.exe || exit 1
+            cmd //c "start /wait "" miniconda.exe /S /D=$CONDA_DIR"
+        else
+            if [ "${TRAVIS_OS_NAME}" == "osx" ]; then
+                wget https://repo.continuum.io/miniconda/Miniconda3-latest-MacOSX-x86_64.sh -O miniconda.sh || exit 1
+            elif [ "${TRAVIS_OS_NAME}" == "linux" ]; then
+                wget https://repo.continuum.io/miniconda/Miniconda3-latest-Linux-x86_64.sh -O miniconda.sh || exit 1
+            fi
+            bash miniconda.sh -b -p "$CONDA_DIR" || exit 1
+        fi
+    fi
+
+    echo "Configuring Miniconda..."
+    conda config --set ssl_verify false || exit 1
+    conda config --set always_yes true --set changeps1 false || exit 1
+
+    echo "Updating Miniconda..."
+    conda update conda
+    conda update --all
+    conda info -a || exit 1
+  # Setup Conda Env
+  - |
+    echo "Creating a Python $PYTHON_VERSION environment..."
+    conda create -n hosts python=$PYTHON_VERSION || exit 1
+    source activate hosts
+
+    echo "Installing packages..."
+    conda install numpy scipy pandas codecov
+    pip install -r requirements.txt
+    python setup.py install
+    conda list
+
 script:
+  - source activate hosts
   - pytest --cov=pandera tests/
   - codecov
   # Check conformity to flake8 style guide
   - flake8 pandera/pandera.py tests
   # Check docs can build, treating warnings as errors
-  - make -C docs doctest && python -m sphinx -E -W "docs/source" "docs/_build"
+  - python -m sphinx -E -W -b=doctest "docs/source" "docs/_build"

docs/source/conf.py

@@ -35,6 +35,9 @@
 ]
 
 doctest_global_setup = """
+import pandas as pd
+pd.options.display.max_columns = None # For Travis on macOS
+pd.options.display.max_rows = None # For Travis on macOS
 """
 
 doctest_default_flags = (

tests/test_docs_setting_column_widths.py

@@ -0,0 +1,11 @@
+import pandas as pd
+from docs.source import conf
+
+
+def test_sphinx_doctest_setting_global_pandas_conditions():
+    exec(conf.doctest_global_setup)
+
+    max_cols_after_being_set = pd.options.display.max_columns
+    max_rows_after_being_set = pd.options.display.max_rows
+    assert max_cols_after_being_set is None
+    assert max_rows_after_being_set is None