Merge pull request #105 from nbraud/tests/pypy3.6

Travis: Run tests under PyPy

.ci/install-python.sh

@@ -0,0 +1,47 @@
+#!/usr/bin/env bash
+
+# Nothing to do if no specific Python version is requested
+[ -n "${PYTHON+x}" ] || return 0
+
+function run() {
+   echo '$' "$@"
+   "$@" || exit 1
+}
+
+if [[ "$TRAVIS_OS_NAME" != linux ]]; then
+   echo "This script only supports linux, got \$TRAVIS_OS_NAME='${TRAVIS_OS_NAME}'" >&2
+   exit 1
+fi
+
+if [[ "$PYTHON" =~ pypy-* ]]; then
+  # Download & install a prebuilt pypy snapshot
+  PYPY_BRANCH=${PYTHON#*-}
+  URL="http://buildbot.pypy.org/nightly/${PYPY_BRANCH}/pypy-c-jit-latest-linux64.tar.bz2"
+  run wget "${URL}" -O ../pypy.tar.bz2
+  run tar -C .. -xf ../pypy.tar.bz2
+  pushd ..; PYPY=( pypy-c-jit-* ); popd
+
+  echo "Using ${PYPY}"
+  export PATH="$(realpath ../${PYPY}/bin):${PATH}"
+  echo "PATH='${PATH}'"
+
+  run ln -s pypy3 "../${PYPY}/bin/python"
+  run python -m ensurepip
+  run ln -s pip3 "../${PYPY}/bin/pip"
+  run pip install -U pip wheel
+
+else
+  # Install a Python version with miniconda
+  MINICONDA_OS=Linux
+  URL="https://repo.continuum.io/miniconda/Miniconda3-latest-${MINICONDA_OS}-x86_64.sh"
+  run wget "${URL}" -O ../miniconda.sh
+  run bash ../miniconda.sh -b -p "$HOME/miniconda"
+  export PATH="$HOME/miniconda/bin:$PATH"
+  echo "PATH='${PATH}'"
+
+  run conda config --set always_yes yes --set changeps1 no
+  run conda update -q conda
+  run conda info -a
+  run conda create -q -n test-environment "python=$PYTHON"
+  run source activate test-environment
+fi

.travis.yml

@@ -1,40 +1,46 @@
+addons:
+  apt:
+    packages:
+      - realpath
+
+sudo: no
 language: python
 matrix:
+    fast_finish: yes
     include:
+        # CPython builds
         - os: linux
           python: 3.6
         - os: linux
           language: generic
-          env: PYTHON="3.7" MINICONDA_OS="Linux"
+          env: PYTHON="3.7"
         - os: linux
           python: nightly
+
+        # PyPy builds
+        - os: linux
+          language: generic
+          env: PYTHON="pypy-py3.6"
+
     allow_failures:
         - python: "nightly"
+        - env: PYTHON="pypy-py3.6"
 
 cache:
     directories:
       - $HOME/.cache/pip
       - .hypothesis
 
 before_install:
-  - if [[ $MINICONDA_OS ]]; then
-      URL="https://repo.continuum.io/miniconda/Miniconda3-latest-${MINICONDA_OS}-x86_64.sh";
-      wget "${URL}" -O miniconda.sh;
-      bash miniconda.sh -b -p $HOME/miniconda;
-      export PATH="$HOME/miniconda/bin:$PATH";
-      hash -r;
-      conda config --set always_yes yes --set changeps1 no;
-      conda update -q conda;
-      conda info -a;
-      conda create -q -n test-environment python=$PYTHON;
-      source activate test-environment;
-    fi;
+  - source ./.ci/install-python.sh
 
 install:
   - pip install -e .;
+  - # Do not install mypy during pypy builds
+    '[[ ! "$PYTHON" =~ pypy-* ]] || sed -i "/^mypy/d" dev-requirements.txt'
   - pip install -r dev-requirements.txt;
-  
+
 script:
   - pytest --hypothesis-profile ci
-  - mypy ppb_vector tests
+  - '[[ "$PYTHON" =~ pypy-* ]] || mypy ppb_vector tests'
   - python -m doctest README.md