Modify android/run_all_unit_tests.sh to continue on error

Merged from Widevine CDM repo:
https://widevine-internal-review.googlesource.com/#/c/13840/

Change-Id: Iefd2c6c38dcbec1571f5965eb7e6b30e011cf65b

libwvdrmengine/run_all_unit_tests.sh

@@ -1,13 +1,19 @@
 #!/bin/sh
 
-set -e
+final_result=0
+failed_tests=()
 
 # Execute a command in "adb shell" and capture the result.
 adb_shell_run() {
   local tmp_log="$OUT/mediadrmtest.log"
-  local adb_error="[ADB SHELL] $1 failed"
-  adb shell $1 \|\| echo "$adb_error" | tee "$tmp_log"
+  local adb_error="[ADB SHELL] $@ failed"
+  adb shell $@ \|\| echo "$adb_error" | tee "$tmp_log"
   ! grep -Fq "$adb_error" "$tmp_log"
+  local result=$?
+  if [ $result -ne 0 ]; then
+    final_result=$result
+    failed_tests+=("$adb_error")
+  fi
 }
 
 if [ -z "$ANDROID_BUILD_TOP" ]; then
@@ -35,8 +41,13 @@ adb_shell_run /system/bin/device_files_unittest
 adb_shell_run /system/bin/timer_unittest
 
 library_path="/system/vendor/lib/mediadrm/ "
-adb_shell_run "LD_LIBRARY_PATH=$library_path /system/bin/libwvdrmengine_test"
+adb_shell_run LD_LIBRARY_PATH=$library_path /system/bin/libwvdrmengine_test
 
-adb_shell_run "am start com.widevine.test/com.widevine.test.MediaDrmAPITest"
-echo "MediaDrm unittests completed successfully!"
+adb_shell_run am start com.widevine.test/com.widevine.test.MediaDrmAPITest
+if [ $final_result -eq 0 ]; then
+  echo "MediaDrm unittests completed successfully!"
+else
+  printf '\n%s' "${failed_tests[@]}"
+  exit $final_result
+fi