Run iOS functional tests on azure pipelines (appium#390)

* Set up CI with Azure Pipelines

* review comments

* update README

Author: ki4070ma

README.md

@@ -52,7 +52,8 @@ download and unarchive the source tarball (Appium-Python-Client-X.X.tar.gz).
     - It generates readable changelog
 - Setup
     - `pip install --user pipenv`
-    - `pipenv install --dev`
+    - `pipenv lock --clear`
+    - `pipenv install --dev --system`
     - `pre-commit install`
 
 ## Run tests

azure-pipelines.yml

@@ -0,0 +1,20 @@
+# Xcode
+# Build, test, and archive an Xcode workspace on macOS.
+# Add steps that install certificates, test, sign, and distribute an app, save build artifacts, and more:
+# https://docs.microsoft.com/azure/devops/pipelines/languages/xcode
+jobs:
+  - job: func_test_ios1
+    pool:
+      vmImage: 'macOS-10.14'
+    steps:
+      - template: ./ci-jobs/functional/run_appium.yml
+      - script: |
+          py.test test/functional/ios/find_*.py test/functional/ios/push_file_tests.py test/functional/ios/safari_tests.py
+        displayName: Run functional tests
+  - job: func_test_ios2
+    pool:
+      vmImage: 'macOS-10.14'
+    steps:
+      - template: ./ci-jobs/functional/run_appium.yml
+      - script: py.test test/functional/ios/appium_tests.py
+        displayName: Run functional tests

ci-jobs/functional/run_appium.yml

@@ -0,0 +1,28 @@
+steps:
+- task: NodeTool@0
+  inputs:
+    versionSpec: '10.x'
+  displayName: Install Node 10.x
+- script: npm install -g appium
+  displayName: Install appium
+- task: UsePythonVersion@0
+  inputs:
+    versionSpec: '3.x'
+- script: brew install ffmpeg
+  displayName: Resolve dependencies (Appium server)
+- script: python setup.py install
+  displayName: Install python language bindings for Appium
+- script: |
+    pip install pipenv
+    pipenv lock --clear
+    pipenv install --system
+  displayName: Resolve dependencies (Python)
+- script: |
+    git --no-pager log -n1
+    python --version
+    ffmpeg -version
+    appium --version
+    node --version
+  displayName: Check versions
+- script: appium --relaxed-security &
+  displayName: Run Appium in background