bugfix/windows-test-pipeline (#317)

* debug prints

* try corretly escape variable

* more tests

* more debugging

* try add openssl

* revert unneeded changes

Author: trittsv

.azure/templates/build-test.yml

@@ -43,6 +43,12 @@ steps:
     name: flake8_lint
     displayName: Run Flake8 Linter
     condition: eq(variables['run-fuzzing'], false)
+  - pwsh: |
+      choco install openssl.light -y --no-progress
+      $opensslBin = "C:\Program Files\OpenSSL-Win64\bin"
+      Write-Host "##vso[task.setvariable variable=PATH]$opensslBin;$env:PATH"
+    condition: eq(variables['Agent.OS'], 'Windows_NT')
+    displayName: Install OpenSSL (Windows)
   - bash: |
       cd tests
       python -m pytest .. -vv --no-coverage-upload --color=yes