Merge pull request #94 from hello-ag/feature/PR_test_github_action

Add files to checkout new PR and run unit tests

.github/workflows/pr_clone_run_test.sh

@@ -0,0 +1,17 @@
+cd repos
+git clone $3 stretch_body_PR_testing
+cd stretch_body_PR_testing
+git fetch origin pull/$1/head:$2
+git checkout $2
+cd body
+declare -a TestFiles=("test_arm" "test_dxl_comms" "test_end_of_arm" "test_hello_utils" "test_robot_params" "test_timing_stats" "test_base" "test_dynamixel_hello_XL430" "test_end_of_arm_tools" "test_lift" "test_robot" "test_timing_stats" "test_arm" "test_device" "test_dynamixel_XL430" "test_hello_utils" "test_pimu" "test_steppers" )
+declare -a TestFiles2=("test_hello_utils")
+declare -a TestFiles3=("test_robot_params")
+# Iterate the string array using for loop
+for fileName in ${TestFiles2[@]}; do
+   python -m unittest test.$fileName
+done
+cd ../..
+rm -rf stretch_body_PR_testing
+exit
+~^Z

.github/workflows/stretch_ssh_pr_checkout.yml

@@ -0,0 +1,35 @@
+name: Checkout new PR
+on:
+  pull_request_target:
+jobs:
+  Checkout_PR_and_run_tests:
+    runs-on: ubuntu-18.04
+    steps:
+      - name: Repository checkout
+        uses: actions/checkout@v2
+
+      - name: save the ssh key for access to robot to the file
+        run: 'echo "$SSH_KEY" > the_key'
+        shell: bash
+        env:
+          SSH_KEY: ${{ secrets.STRETCH_SSH_KEY_GITHUB_ACTION }}
+      - run: chmod 400 the_key
+
+      - name: Print out PR reference values
+        run: |
+          echo github.base_ref: ${{ github.base_ref }}
+          echo github.head_ref: ${{ github.head_ref }}
+          echo github.ref: ${{ github.ref }}
+
+      - name: Replace PR number, Branch name and Cloning URL
+        run: sed -e "s/\$1/${PR_NUMBER}/g" -e "s|\$2|${BRANCH_NAME}|g" -e "s|\$3|${CLONE_URL}|g" .github/workflows/pr_checkout_commands.sh > ssh_commands_pr_info.sh; cat ssh_commands_pr_info.sh
+        env:
+          PR_NUMBER: ${{ github.event.number }}
+          BRANCH_NAME: ${{ github.head_ref }}
+          CLONE_URL: ${{ github.event.repository.clone_url }}
+
+      - name: Log into stretch using ssh and run tests
+        run: ssh -i the_key hello-robot@"${STRETCH_IP}" -p "$STRETCH_PORT" -tt -o StrictHostKeyChecking=no < ./ssh_commands_pr_info.sh
+        env:
+          STRETCH_IP: 72.134.86.243
+          STRETCH_PORT: 43771