Add appveyor.yml

appveyor.yml

@@ -0,0 +1,52 @@
+environment:
+  matrix:
+    - JOB: "2.7.12 32-bit"
+      PYTHON_HOME: "C:\\Python27"
+      TOXENV: "py27-cov"
+      TOXPYTHON: "C:\\Python27\\python.exe"
+
+    - JOB: "3.5.2 32-bit"
+      PYTHON_HOME: "C:\\Python35"
+      TOXENV: "py35-cov"
+      TOXPYTHON: "C:\\Python35\\python.exe"
+
+    - JOB: "2.7.12 64-bit"
+      PYTHON_HOME: "C:\\Python27-x64"
+      TOXENV: "py27-cov"
+      TOXPYTHON: "C:\\Python27-x64\\python.exe"
+
+    - JOB: "3.5.2 64-bit"
+      PYTHON_HOME: "C:\\Python35-x64"
+      TOXENV: "py35-cov"
+      TOXPYTHON: "C:\\Python35-x64\\python.exe"
+
+install:
+  # If there is a newer build queued for the same PR, cancel this one.
+  # The AppVeyor 'rollout builds' option is supposed to serve the same
+  # purpose but it is problematic because it tends to cancel builds pushed
+  # directly to master instead of just PR builds (or the converse).
+  # credits: JuliaLang developers.
+  - ps: if ($env:APPVEYOR_PULL_REQUEST_NUMBER -and $env:APPVEYOR_BUILD_NUMBER -ne ((Invoke-RestMethod `
+        https://ci.appveyor.com/api/projects/$env:APPVEYOR_ACCOUNT_NAME/$env:APPVEYOR_PROJECT_SLUG/history?recordsNumber=50).builds | `
+        Where-Object pullRequestId -eq $env:APPVEYOR_PULL_REQUEST_NUMBER)[0].buildNumber) { `
+          throw "There are newer queued builds for this pull request, failing early." }
+
+  # Prepend Python to the PATH of this build
+  - "SET PATH=%PYTHON_HOME%;%PYTHON_HOME%\\Scripts;%PATH%"
+
+  # check that we have the expected version and architecture for Python
+  - "python --version"
+  - "python -c \"import struct; print(struct.calcsize('P') * 8)\""
+
+  # upgrade pip to avoid out-of-date warnings
+  - "python -m pip install --disable-pip-version-check --user --upgrade pip"
+  - "python -m pip --version"
+
+  # install the dependencies to run the tests
+  - "python -m pip install -r dev-requirements.txt"
+
+
+build: false
+
+test_script:
+  - "tox"