Fix run_tests to not mask bash8 errors

The addition of the crazy-refs check masked the bash8 exit code.  So add
the same pass/fail handling from exercise.sh to provide a neat summary at
the end of the run.

Change-Id: I169eb90c619a114cf8584bee70b7dcda67769dc5

run_tests.sh

@@ -15,6 +15,23 @@
 #
 # this runs a series of unit tests for devstack to ensure it's functioning
 
+PASSES=""
+FAILURES=""
+
+# Check the return code and add the test to PASSES or FAILURES as appropriate
+# pass_fail <result> <expected> <name>
+function pass_fail {
+    local result=$1
+    local expected=$2
+    local test_name=$3
+
+    if [[ $result -ne $expected ]]; then
+        FAILURES="$FAILURES $test_name"
+    else
+        PASSES="$PASSES $test_name"
+    fi
+}
+
 if [[ -n $@ ]]; then
     FILES=$@
 else
@@ -27,6 +44,7 @@ fi
 echo "Running bash8..."
 
 ./tools/bash8.py -v $FILES
+pass_fail $? 0 bash8
 
 
 # Test that no one is trying to land crazy refs as branches
@@ -35,8 +53,21 @@ echo "Ensuring we don't have crazy refs"
 
 REFS=`grep BRANCH stackrc | grep -v -- '-master'`
 rc=$?
+pass_fail $rc 1 crazy-refs
 if [[ $rc -eq 0 ]]; then
     echo "Branch defaults must be master. Found:"
     echo $REFS
+fi
+
+echo "====================================================================="
+for script in $PASSES; do
+    echo PASS $script
+done
+for script in $FAILURES; do
+    echo FAILED $script
+done
+echo "====================================================================="
+
+if [[ -n "$FAILURES" ]]; then
     exit 1
 fi