test: print test summary at the end (#13421)

tools/mocha-runner/src/mocha-runner.ts

@@ -29,6 +29,7 @@ import {
   filterByParameters,
   filterByPlatform,
   getExpectationUpdates,
+  getSuggestionsForAction,
   printSuggestions,
   readJSON,
   writeJSON,
@@ -295,23 +296,31 @@ async function main() {
     fail = true;
     console.error(err);
   } finally {
+    const added = getSuggestionsForAction(recommendations, 'add');
+    const removed = getSuggestionsForAction(recommendations, 'remove');
+    const updated = getSuggestionsForAction(recommendations, 'update');
     if (!!provideSuggestions) {
       printSuggestions(
-        recommendations,
-        'add',
+        added,
         'Add the following to TestExpectations.json to ignore the error:',
+        true,
       );
       printSuggestions(
-        recommendations,
-        'remove',
+        removed,
         'Remove the following from the TestExpectations.json to ignore the error:',
       );
       printSuggestions(
-        recommendations,
-        'update',
+        updated,
         'Update the following expectations in the TestExpectations.json to ignore the error:',
+        true,
       );
     }
+    const unexpected = added.length + removed.length + updated.length;
+    console.log(
+      fail && Boolean(unexpected)
+        ? `Run failed: ${unexpected} unexpected result(s).`
+        : `Run succeeded.`,
+    );
     process.exit(fail ? 1 : 0);
   }
 }

tools/mocha-runner/src/utils.ts

@@ -72,27 +72,33 @@ export function prettyPrintJSON(json: unknown): void {
   console.log(JSON.stringify(json, null, 2));
 }
 
-export function printSuggestions(
+export function getSuggestionsForAction(
   recommendations: RecommendedExpectation[],
   action: RecommendedExpectation['action'],
-  message: string,
-): void {
-  const toPrint = recommendations.filter(item => {
+): RecommendedExpectation[] {
+  return recommendations.filter(item => {
     return item.action === action;
   });
-  if (toPrint.length) {
+}
+
+export function printSuggestions(
+  recommendations: RecommendedExpectation[],
+  message: string,
+  printBasedOn = false,
+): void {
+  if (recommendations.length) {
     console.log(message);
     prettyPrintJSON(
-      toPrint.map(item => {
+      recommendations.map(item => {
         return item.expectation;
       }),
     );
-    if (action !== 'remove') {
+    if (printBasedOn) {
       console.log(
         'The recommendations are based on the following applied expectations:',
       );
       prettyPrintJSON(
-        toPrint.map(item => {
+        recommendations.map(item => {
           return item.basedOn;
         }),
       );