add test output and a run against Python RC

.azure-pipelines.yml

@@ -1,11 +1,15 @@
 trigger:
-- master
+- 'master'
+- '*-maintenance'
 
+jobs:
+- job: Flask
   variables:
     vmImage: ubuntu-latest
     python.version: '3.7'
     TOXENV: 'py,codecov'
     python.architecture: 'x64'
+    publish.test.results: 'true'
 
   strategy:
     matrix:
@@ -30,6 +34,7 @@ strategy:
         vmImage: 'windows-latest'
       DocsHtml:
         TOXENV: docs-html
+        publish.test.results: 'false'
       VersionRange:
         TOXENV: devel,lowest,codecov
 
@@ -45,9 +50,29 @@ steps:
   - script: pip install -U tox
     displayName: 'Install tox'
 
-- script: tox
+  - script: tox -- --junitxml=unittests/TEST-$(Agent.JobName).xml
     displayName: 'Run tox'
 
+  - task: PublishTestResults@2
+    inputs:
+      testResultsFiles: '**/TEST-*.xml'
+      testRunTitle: '$(Agent.JobName)'
+    condition: eq(variables['publish.test.results'], 'true')
+  
   # TODO: add codecov token
-# TODO: emit JUnit test results
+
-# TODO: build on nightly
+# As a courtesy, try this on the dev version of Python
+# Use a container since Azure Pipelines may not have the bleeding-edge Python RC
+- job: FlaskOnLatest
+  pool: { vmImage: ubuntu-latest }
+  container: python:rc-stretch
+  steps:
+  - script: |
+      echo "##vso[task.prependPath]$HOME/.local/bin"
+      pip install -U --user tox
+    displayName: 'Install tox'
+  
+  - script: |
+      tox
+      exit 0  # don't fail the build if this doesn't work!
+    displayName: 'Run tox'

tox.ini

@@ -35,7 +35,7 @@ commands =
     pip install -q -e examples/javascript[test]
 
     # pytest-cov doesn't seem to play nice with -p
-    coverage run -p -m pytest tests examples
+    coverage run -p -m pytest tests examples {posargs}
 
 [testenv:docs-html]
 deps =