Add Cuttlefish tests in CI

scripts/test_common.sh

@@ -0,0 +1,42 @@
+export PATH="$PATH:$ANDROID_SDK_ROOT/platform-tools"
+
+sdk="$ANDROID_SDK_ROOT/cmdline-tools/latest/bin/sdkmanager"
+boot_timeout=600
+
+print_title() {
+  echo -e "\n\033[44;39m${1}\033[0m\n"
+}
+
+print_error() {
+  echo -e "\n\033[41;39m${1}\033[0m\n"
+}
+
+run_content_cmd() {
+  while true; do
+    local out=$(adb shell echo "'content call --uri content://com.topjohnwu.magisk.provider --method $1'" \| /system/xbin/su | tee /dev/fd/2)
+    if ! grep -q 'Bundle\[' <<< "$out"; then
+      # The call failed, wait a while and retry later
+      sleep 30
+    else
+      grep -q 'result=true' <<< "$out"
+      return $?
+    fi
+  done
+}
+
+test_setup() {
+  local variant=$1
+  adb shell 'PATH=$PATH:/debug_ramdisk magisk -v'
+
+  # Install the Magisk app
+  adb install -r -g out/app-${variant}.apk
+
+  # Use the app to run setup and reboot
+  run_content_cmd setup
+}
+
+test_app() {
+  # Run app tests
+  run_content_cmd test
+  adb shell echo 'su -c id' \| /system/xbin/su 2000 | tee /dev/fd/2 | grep -q 'uid=0'
+}