A couple unit testing improvements (#2238)

Author: chadwhitacre

unit-test.sh

@@ -1,8 +1,14 @@
 #!/usr/bin/env bash
 
+export REPORT_SELF_HOSTED_ISSUES=0 # will be over-ridden in the relevant test
+
 FORCE_CLEAN=1 "./scripts/reset.sh"
 fail=0
 for test_file in _unit-test/*-test.sh; do
+  if [ "$1" -a "$1" != "$test_file" ]; then
+    echo "🙊 Skipping $test_file ..."
+    continue
+  fi
   echo "🙈 Running $test_file ..."
   $test_file
   if [ $? != 0 ]; then