bin/run-tests in elastic-apm-4.6.2 vs bin/run-tests in elastic-apm-4.7.0

@@ -1,17 +1,26 @@
 #!/bin/bash
 set -e
 
+JUNIT_PREFIX=${JUNIT_PREFIX:-""}
+
 runRspec(){
   local case=${1:-""}
   local bn=${case}
 
   if [ -n "${case}" ]; then
     bn="$(basename ${case} _spec.rb)/"
   fi
+  # If working on an isolated environment then copy the file to
+  # the original location
+  TEST_REPORT_DIR=spec/junit-reports/${JUNIT_PREFIX}${bn}
+  if [ -n "$APP_PATH" ] ; then
+    TEST_REPORT_DIR=$APP_PATH/$TEST_REPORT_DIR
+    mkdir -p $TEST_REPORT_DIR
+  fi
   bundle exec rspec \
     -f progress \
-    -r yarjuf -f JUnit -o spec/junit-reports/${bn}ruby-agent-junit.xml \
+    -r yarjuf -f JUnit -o ${TEST_REPORT_DIR}ruby-agent-junit.xml \
     ${case}
 }
 specific_spec=$1
 
 if [[ $specific_spec = '' ]]; then