test: stabilize parallel event-source coverage (#37)

.github/workflows/unittest.yaml

@@ -26,4 +26,4 @@ jobs:
         run: dart run tool/validate_gherkin_test_format.dart
 
       - name: Run tests
-        run: dart test -j 1
+        run: dart test

README.md

@@ -82,7 +82,7 @@ dart run bin/code_work_spawner.dart \
 ```bash
 dart run tool/validate_gherkin_test_format.dart
 dart analyze
-dart test -j 1
+dart test
 ```
 
 ## ref

test/core/concurrency_test.dart

@@ -108,13 +108,13 @@ void registerIssueAssistantAppRunOnceConcurrencyTests() {
         ghLog: ghLog,
       );
 
-      // And a responder that sleeps for one second while logging each issue number.
+      // And a responder that sleeps long enough to expose overlap despite scheduler jitter.
       final eventLog = File(p.join(sandbox.path, 'responder-events.log'));
       final responderScript = File(p.join(sandbox.path, 'responder-slow.sh'));
       await writeDelayedLoggingResponderScript(
         responderScript,
         eventLog: eventLog,
-        delay: const Duration(seconds: 1),
+        delay: const Duration(seconds: 2),
         response: {
           'decision': 'reply',
           'mode': 'planning',

test/core/retry_test.dart

@@ -92,7 +92,7 @@ projects:
 
       // When the long-running app starts and enough time passes for a retry.
       final runFuture = app.run();
-      for (var attempt = 0; attempt < 60; attempt += 1) {
+      for (var attempt = 0; attempt < 200; attempt += 1) {
         final logLines = await ghLog.exists()
             ? await ghLog.readAsLines()
             : const <String>[];

test/issue_event_source/github_gosmee_test.dart

@@ -123,7 +123,7 @@ projects:
 
       // When the long-running app starts and receives the forwarded webhook.
       final runFuture = app.run();
-      for (var attempt = 0; attempt < 50; attempt += 1) {
+      for (var attempt = 0; attempt < 200; attempt += 1) {
         if (await postedBody.exists()) {
           break;
         }

test/issue_event_source/gitlab_gosmee_test.dart

@@ -137,7 +137,7 @@ projects:
 
       // When the long-running app starts and receives the forwarded webhook.
       final runFuture = app.run();
-      for (var attempt = 0; attempt < 50; attempt += 1) {
+      for (var attempt = 0; attempt < 200; attempt += 1) {
         if (await postedBody.exists()) {
           break;
         }

test/issue_event_source/gosmee_test.dart

@@ -165,7 +165,7 @@ projects:
 
       // When the long-running app starts and receives the forwarded webhook.
       final runFuture = app.run();
-      for (var attempt = 0; attempt < 50; attempt += 1) {
+      for (var attempt = 0; attempt < 200; attempt += 1) {
         if (await postedBody.exists()) {
           break;
         }
@@ -374,7 +374,7 @@ projects:
 
       // When the long-running app starts and enough time passes for reconciliation polling.
       final runFuture = app.run();
-      for (var attempt = 0; attempt < 50; attempt += 1) {
+      for (var attempt = 0; attempt < 200; attempt += 1) {
         if (await postedBody.exists()) {
           break;
         }

test/issue_event_source/webhook_forward_test.dart

@@ -103,7 +103,7 @@ projects:
 
       // When the long-running app starts and receives the forwarded webhook.
       final runFuture = app.run();
-      for (var attempt = 0; attempt < 50; attempt += 1) {
+      for (var attempt = 0; attempt < 200; attempt += 1) {
         if (await postedBody.exists()) {
           break;
         }
@@ -208,7 +208,7 @@ projects:
 
       // When the long-running app starts and webhook-forward emits that stderr line.
       final runFuture = app.run();
-      for (var attempt = 0; attempt < 50; attempt += 1) {
+      for (var attempt = 0; attempt < 200; attempt += 1) {
         if (records.any(
           (record) => record.message.contains('error creating webhook'),
         )) {
@@ -384,7 +384,7 @@ projects:
 
       // When the long-running app starts and enough time passes for reconciliation polling.
       final runFuture = app.run();
-      for (var attempt = 0; attempt < 50; attempt += 1) {
+      for (var attempt = 0; attempt < 200; attempt += 1) {
         if (await postedBody.exists()) {
           break;
         }