If max score is 0, don't show an error that your score is 0

Author: jon-bell

dist/index.js

@@ -110,7 +110,7 @@ async function generateSummaryReport(
     core.summary.addTable(rows)
   }
   await core.summary.write()
-  if (score == 0) {
+  if (score == 0 && max_score) {
     core.error('Score: 0')
   } else if (score != max_score) {
     core.warning(`Score: ${score}/${max_score}`)
@@ -241,7 +241,7 @@ export async function run(): Promise<void> {
         )
       }
       await generateSummaryReport(results, gradeResponse, regressionTestJob)
-      if (results.score === 0) {
+      if (results.score === 0 && results.max_score) {
         core.setFailed(
           'Score for this submission is 0. Please check to be sure that it conforms with the assignment instructions.'
         )