Add a Yamato pipeline to run C# editmode tests. (#2773)

run-tests-editmode-osx-editor.sh

+#!/bin/bash
+
+set -eo pipefail
+
+EDITOR_VERSION="2017.4.33f1"
+BOKKEN_UNITY="/Users/bokken/${EDITOR_VERSION}/Unity.app/Contents/MacOS/Unity"
+HUB_UNITY="/Applications/Unity/Hub/Editor/${EDITOR_VERSION}/Unity.app/Contents/MacOS/Unity"
+
+if [[ -f ${BOKKEN_UNITY} ]]; then 
+    UNITY=${BOKKEN_UNITY}
+else
+    UNITY=${HUB_UNITY}
+fi 
+
+pushd $(dirname "${0}") > /dev/null
+BASETPATH=$(pwd -L)
+popd > /dev/null
+
+echo "Cleaning previous results"
+
+if [[ -e ${BASETPATH}/results.xml ]]
+then
+	rm ${BASETPATH}/results.xml
+fi
+
+echo "Starting tests via $UNITY"
+
+CMD_LINE="$UNITY -runTests -projectPath $BASETPATH/UnitySDK -testResults $BASETPATH/results.xml -testPlatform editmode"
+
+echo "$CMD_LINE ..."
+
+$CMD_LINE
+RES=$?
+
+TOTAL=$(echo 'cat /test-run/test-suite/@total' | xmllint --shell results.xml | awk -F'[="]' '!/>/{print $(NF-1)}')
+PASSED=$(echo 'cat /test-run/test-suite/@passed' | xmllint --shell results.xml | awk -F'[="]' '!/>/{print $(NF-1)}')
+FAILED=$(echo 'cat /test-run/test-suite/@failed' | xmllint --shell results.xml | awk -F'[="]' '!/>/{print $(NF-1)}')
+DURATION=$(echo 'cat /test-run/test-suite/@duration' | xmllint --shell results.xml | awk -F'[="]' '!/>/{print $(NF-1)}')
+
+echo "$TOTAL tests executed in ${DURATION}s: $PASSED passed, $FAILED failed. More details in results.xml"
+
+if [[ ${RES} -eq 0 ]] && [[ -e ${BASETPATH}/results.xml ]]; then
+    echo "Test run SUCCEEDED!"
+else
+    echo "Test run FAILED!"
+fi
+
+rm "${BASETPATH}/results.xml"
+
+exit ${RES}

.yamato/csharp-tests.yml

+name: Mac Edit Mode Tests
+triggers:
+    branches:
+      only:
+      - "/develop-.*/"
+    targets:
+      only:
+      - "develop"
+    pull_requests:
+      - targets:
+          only:
+            - "master"
+            - "/release-.*/"
+            - "/hotfix-.*/"
+
+agent:
+  type: Unity::VM::osx
+  image: ml-agents/ml-agents-bokken-mac:latest
+  flavor: i1.small
+
+variables:
+  LC_ALL: "en_US.UTF-8"
+commands:
+  - ./run-tests-editmode-osx-editor.sh