Set up CI with Azure Pipelines (#207)

* Set up CI with Azure Pipelines

* remove the publish job from the script

Author: Wenbing Li

azure-pipelines.yml

@@ -0,0 +1,59 @@
+# Python package
+# Create and test a Python package on multiple Python versions.
+# Add steps that analyze code, save the dist with the build record, publish to a PyPI-compatible index, and more:
+# https://docs.microsoft.com/azure/devops/pipelines/languages/python
+
+trigger:
+- master
+
+jobs:
+
+- job: 'Test'
+  pool:
+    vmImage: 'Ubuntu-16.04'
+  strategy:
+    matrix:
+      Python27:
+        python.version: '2.7'
+      # Python35:
+      #   python.version: '3.5'
+      Python36:
+        python.version: '3.6'
+    maxParallel: 3
+
+  steps:
+  - task: CondaEnvironment@1
+    inputs:
+      createCustomEnvironment: true
+      environmentName: 'py$(python.version)'
+      packageSpecs: 'python=$(python.version)'
+
+  - script: |
+      python -m pip install --upgrade pip
+      conda config --set always_yes yes --set changeps1 no
+      conda install -c conda-forge protobuf
+      conda install -c conda-forge numpy
+      conda install -c conda-forge cmake
+      conda install -c conda-forge openmpi
+      conda install -c conda-forge tensorflow
+      pip install -r requirements.txt
+      pip install -r requirements-dev.txt
+      test '$(python.version)' != '2.7' && pip install onnxruntime
+      pip install pytest
+      git clone --recursive https://github.com/cjlin1/libsvm libsvm
+      cd libsvm
+      make lib
+    displayName: 'Install dependencies'
+
+  - script: |
+      export PYTHONPATH=$PYTHONPATH:libsvm/python
+      python -c "import svmutil"
+      test '$(python.version)' != '2.7' && python -c "import onnxruntime"
+      pytest tests --doctest-modules --junitxml=junit/test-results.xml
+    displayName: 'pytest'
+
+  - task: PublishTestResults@2
+    inputs:
+      testResultsFiles: '**/test-results.xml'
+      testRunTitle: 'Python $(python.version)'
+    condition: succeededOrFailed()