Fixed missing test error auto focusing for watch mode run (#1120)

Author: connectdotz

Diff for: release-notes/release-note-v6.md

@@ -50,7 +50,8 @@ This release is a patch release with the following changes:
 
 **Bug Fixes**
 - Fixed an outputConfig initialization bug that did not honor "testing.openTesting": "openOnTestFailure" setting correctly. ([#1119](https://github.com/jest-community/vscode-jest/pull/1119) - @connectdotz)
- 
+- Fixed missing test error auto focusing for watch mode run. ([#1120](https://github.com/jest-community/vscode-jest/pull/1120) - @connectdotz) 
+  
 **New Command**
 - Added a new command `"Jest: Disable Auto Focus Test Output"` to easily disable TEST RESULTS panel auto focus. It will set the output to the "neutral" mode, i.e., no auto focusing. ([#1119](https://github.com/jest-community/vscode-jest/pull/1119) - @connectdotz)
 

Diff for: src/JestExt/core.ts

@@ -204,6 +204,12 @@ export class JestExt {
         case 'end': {
           const state = event.error ? 'exec-error' : 'done';
           this.updateStatusBar({ state });
+
+          // testError should be persistent per run-cycle. Not clear up this flag at end end of the cycle
+          // could cause the processes with multiple run cycles, such as watch mode, to failed to act properly.
+          if (event.process.userData?.testError) {
+            event.process.userData.testError = undefined;
+          }
           break;
         }
         case 'exit':

Diff for: tests/JestExt/core.test.ts

@@ -1362,13 +1362,47 @@ describe('JestExt', () => {
       onRunEvent({ type: 'start', process });
       expect(mockOutputManager.showOutputOn).toHaveBeenCalledWith('run', expect.anything());
     });
-    it('notify outputManager for test-error event', () => {
-      const sut = newJestExt();
-      const onRunEvent = (sut.events.onRunEvent.event as jest.Mocked<any>).mock.calls[0][0];
-      const process = { id: 'a process id', request: { type: 'watch' } };
-      onRunEvent({ type: 'test-error', process });
-      expect(mockOutputManager.showOutputOn).toHaveBeenCalledWith('run', expect.anything());
-      expect(mockOutputManager.showOutputOn).toHaveBeenCalledWith('test-error', expect.anything());
+    describe('when test errors occurred', () => {
+      it('will notify outputManager', () => {
+        const sut = newJestExt();
+        const onRunEvent = (sut.events.onRunEvent.event as jest.Mocked<any>).mock.calls[0][0];
+        const process = { id: 'a process id', request: { type: 'watch' } };
+        onRunEvent({ type: 'test-error', process });
+        expect(mockOutputManager.showOutputOn).toHaveBeenCalledWith('run', expect.anything());
+        expect(mockOutputManager.showOutputOn).toHaveBeenCalledWith(
+          'test-error',
+          expect.anything()
+        );
+      });
+      it('will only notify outputManager once per run cycle', () => {
+        const sut = newJestExt();
+        const onRunEvent = (sut.events.onRunEvent.event as jest.Mocked<any>).mock.calls[0][0];
+        const process = { id: 'a process id', request: { type: 'watch' } };
+
+        onRunEvent({ type: 'test-error', process, userData: {} });
+        expect(mockOutputManager.showOutputOn).toHaveBeenCalledWith(
+          'test-error',
+          expect.anything()
+        );
+        mockOutputManager.showOutputOn.mockClear();
+
+        onRunEvent({ type: 'test-error', process });
+        expect(mockOutputManager.showOutputOn).not.toHaveBeenCalledWith(
+          'test-error',
+          expect.anything()
+        );
+      });
+      it('will reset testError state when test run ended', () => {
+        const sut = newJestExt();
+        const onRunEvent = (sut.events.onRunEvent.event as jest.Mocked<any>).mock.calls[0][0];
+        const process: any = { id: 'a process id', request: { type: 'watch' } };
+
+        onRunEvent({ type: 'test-error', process });
+        expect(process.userData?.testError).toEqual(true);
+
+        onRunEvent({ type: 'end', process });
+        expect(process.userData?.testError).toBeUndefined();
+      });
     });
     it('when setting changed, output setting will change accordingly', () => {
       const runMode = new RunMode({ type: 'watch', deferred: false });