test py27 with windows container on azure (#4880)

* test py27 with windows container on azure

* refactor a bit

* oops missed this

* show me some autocrlf

* wat

* add a gitattributes to force LF endings.

can't use autocrlf false because we don't control the git clone in azure

* remove thing we don't need

* more things

.gitattributes

@@ -0,0 +1 @@
+*.pem text eol=lf

azure-pipelines.yml

@@ -61,3 +61,38 @@ jobs:
   - script: codecov -e MACOS_VERSION,AGENT_OS,TOXENV
     displayName: 'Submit coverage'
     condition: succeeded()
+- job: 'win'
+  pool:
+    vmImage: 'windows-2019'
+  container: $[variables.containerImage]
+  strategy:
+    matrix:
+      Python27-x86:
+        TOXENV: py27
+        containerImage: 'pyca/cryptography-runner-windows:py27-x86'
+        OPENSSL_DIR: 'OpenSSL-Win32-2010'
+        PYTHON_DIR: 'Python27'
+        WINDOWS_ARCH: 'x86'
+      Python27-x86-64:
+        TOXENV: py27
+        containerImage: 'pyca/cryptography-runner-windows:py27-x86_64'
+        OPENSSL_DIR: 'OpenSSL-Win64-2010'
+        PYTHON_DIR: 'Python27'
+        WINDOWS_ARCH: 'x86_64'
+  steps:
+  - script: C:/%PYTHON_DIR%/Scripts/pip install codecov
+    displayName: 'Install codecov'
+
+  - script: git clone https://github.com/google/wycheproof
+    displayName: 'Clone wycheproof'
+
+  - script: |
+        set INCLUDE=C:/%OPENSSL_DIR%/include;%INCLUDE%
+        set LIB=C:/%OPENSSL_DIR%/lib;%LIB%
+        C:/%PYTHON_DIR%/Scripts/tox -r --  --color=yes --wycheproof-root=wycheproof
+        IF %ERRORLEVEL% NEQ 0 EXIT /B %ERRORLEVEL%
+    displayName: 'Run tests'
+
+  - script: C:/%PYTHON_DIR%/Scripts/codecov -e AGENT_OS,TOXENV,WINDOWS_ARCH
+    displayName: 'Submit coverage'
+    condition: succeeded()