Set exit code 65 if xcodebuild test has unexpected failures

Author: andrewheard

scripts/build.sh

@@ -114,6 +114,7 @@ function RunXcodebuild() {
 
   result=0
   xcodebuild "$@" | tee xcodebuild.log | "${xcbeautify_cmd[@]}" || result=$?
+  result=$(CheckUnexpectedFailures $result xcodebuild.log)
 
   if [[ $result == 65 ]]; then
     ExportLogs "$@"
@@ -123,6 +124,7 @@ function RunXcodebuild() {
 
     result=0
     xcodebuild "$@" | tee xcodebuild.log | "${xcbeautify_cmd[@]}" || result=$?
+    result=$(CheckUnexpectedFailures $result xcodebuild.log)
   fi
 
   if [[ $result != 0 ]]; then
@@ -138,6 +140,19 @@ function ExportLogs() {
   python "${scripts_dir}/xcresult_logs.py" "$@"
 }
 
+function CheckUnexpectedFailures() {
+  local result=$1
+  local log_file=$2
+
+  if [[ $result != 0 ]]; then
+    return "$result"
+  elif grep -Eq "[1-9]\d* failures \([1-9]\d* unexpected\)" "$log_file"; then
+    return 65
+  else
+    return 0
+  fi
+}
+
 if [[ "$xcode_major" -lt 15 ]]; then
   ios_flags=(
     -sdk 'iphonesimulator'