Add a test for un-staling

__tests__/main.test.ts

@@ -343,11 +343,11 @@ test('exempt issue labels will not be marked stale', async () => {
     ])
   ];
 
-  let opts = DefaultProcessorOptions;
+  const opts = {...DefaultProcessorOptions};
   opts.exemptIssueLabels = 'Exempt';
 
   const processor = new IssueProcessor(
-    DefaultProcessorOptions,
+    opts,
     async p => (p == 1 ? TestIssueList : []),
     async (num, dt) => [],
     async (issue, label) => new Date().toDateString()
@@ -365,11 +365,11 @@ test('exempt issue labels will not be marked stale (multi issue label with space
     generateIssue(1, 'My first issue', '2020-01-01T17:00:00Z', false, ['Cool'])
   ];
 
-  let opts = DefaultProcessorOptions;
+  const opts = {...DefaultProcessorOptions};
   opts.exemptIssueLabels = 'Exempt, Cool, None';
 
   const processor = new IssueProcessor(
-    DefaultProcessorOptions,
+    opts,
     async p => (p == 1 ? TestIssueList : []),
     async (num, dt) => [],
     async (issue, label) => new Date().toDateString()
@@ -387,11 +387,11 @@ test('exempt issue labels will not be marked stale (multi issue label)', async (
     generateIssue(1, 'My first issue', '2020-01-01T17:00:00Z', false, ['Cool'])
   ];
 
-  let opts = DefaultProcessorOptions;
+  const opts = {...DefaultProcessorOptions};
   opts.exemptIssueLabels = 'Exempt,Cool,None';
 
   const processor = new IssueProcessor(
-    DefaultProcessorOptions,
+    opts,
     async p => (p == 1 ? TestIssueList : []),
     async (num, dt) => [],
     async (issue, label) => new Date().toDateString()
@@ -411,11 +411,11 @@ test('exempt pr labels will not be marked stale', async () => {
     generateIssue(3, 'Another issue', '2020-01-01T17:00:00Z', false)
   ];
 
-  let opts = DefaultProcessorOptions;
+  const opts = {...DefaultProcessorOptions};
   opts.exemptIssueLabels = 'Cool';
 
   const processor = new IssueProcessor(
-    DefaultProcessorOptions,
+    opts,
     async p => (p == 1 ? TestIssueList : []),
     async (num, dt) => [],
     async (issue, label) => new Date().toDateString()
@@ -436,11 +436,11 @@ test('stale issues should not be closed if days is set to -1', async () => {
     generateIssue(3, 'Another issue', '2020-01-01T17:00:00Z', false, ['Stale'])
   ];
 
-  let opts = DefaultProcessorOptions;
+  const opts = {...DefaultProcessorOptions};
   opts.daysBeforeClose = -1;
 
   const processor = new IssueProcessor(
-    DefaultProcessorOptions,
+    opts,
     async p => (p == 1 ? TestIssueList : []),
     async (num, dt) => [],
     async (issue, label) => new Date().toDateString()
@@ -451,3 +451,32 @@ test('stale issues should not be closed if days is set to -1', async () => {
 
   expect(processor.closedIssues.length).toEqual(0);
 });
+
+test('stale label should be removed if a comment was added to a stale issue', async () => {
+  const TestIssueList: Issue[] = [
+    generateIssue(
+      1,
+      'An issue that should un-stale',
+      '2020-01-01T17:00:00Z',
+      false,
+      ['Stale']
+    )
+  ];
+
+  const opts = DefaultProcessorOptions;
+  opts.removeStaleWhenUpdated = true;
+
+  const processor = new IssueProcessor(
+    opts,
+    async p => (p == 1 ? TestIssueList : []),
+    async (num, dt) => [{user: {type: 'User'}}], // return a fake comment so indicate there was an update
+    async (issue, label) => new Date().toDateString()
+  );
+
+  // process our fake issue list
+  await processor.processIssues(1);
+
+  expect(processor.closedIssues.length).toEqual(0);
+  expect(processor.staleIssues.length).toEqual(0);
+  expect(processor.removedLabelIssues.length).toEqual(1);
+});

dist/index.js

@@ -8452,6 +8452,7 @@ class IssueProcessor {
         this.operationsLeft = 0;
         this.staleIssues = [];
         this.closedIssues = [];
+        this.removedLabelIssues = [];
         this.options = options;
         this.operationsLeft = options.operationsPerRun;
         this.client = new github.GitHub(options.repoToken);
@@ -8632,6 +8633,7 @@ class IssueProcessor {
     removeLabel(issue, label) {
         return __awaiter(this, void 0, void 0, function* () {
             core.debug(`Removing label ${label} from issue #${issue.number} - ${issue.title}`);
+            this.removedLabelIssues.push(issue);
             this.operationsLeft -= 1;
             if (this.options.debugOnly) {
                 return;

src/IssueProcessor.ts

@@ -58,6 +58,7 @@ export class IssueProcessor {
 
   readonly staleIssues: Issue[] = [];
   readonly closedIssues: Issue[] = [];
+  readonly removedLabelIssues: Issue[] = [];
 
   constructor(
     options: IssueProcessorOptions,
@@ -326,6 +327,8 @@ export class IssueProcessor {
       `Removing label ${label} from issue #${issue.number} - ${issue.title}`
     );
 
+    this.removedLabelIssues.push(issue);
+
     this.operationsLeft -= 1;
 
     if (this.options.debugOnly) {