[integration_test] Don't log exceptions twice (#81812)

dev/automated_tests/integration_test/exception_handling_expectation.txt

@@ -8,8 +8,9 @@ When the exception was thrown, this was the stack:
 <<skip until matching line>>
 The test description was:
 Exception handling in test harness - string
-<<skip until matching line>>
-  Test failed\. See exception logs above\.
+════════════════════════════════════════════════════════════════════════════════════════════════════
+\d\d:\d\d \+0 -1: Exception handling in test harness - string \[E\]
+  Test failed. See exception logs above.
   The test description was: Exception handling in test harness - string
 <<skip until matching line>>
 ══╡ EXCEPTION CAUGHT BY FLUTTER TEST FRAMEWORK ╞════════════════════════════════════════════════════
@@ -20,9 +21,10 @@ When the exception was thrown, this was the stack:
 #0      main.<anonymous closure> \(.+[/\\]dev[/\\]automated_tests[/\\]integration_test[/\\]exception_handling_test\.dart:13:5\)
 <<skip until matching line>>
 The test description was:
-Exception handling in test harness - FlutterError
-<<skip until matching line>>
-  Test failed\. See exception logs above\.
+  Exception handling in test harness - FlutterError
+════════════════════════════════════════════════════════════════════════════════════════════════════
+\d\d:\d\d \+0 -2: Exception handling in test harness - FlutterError \[E\]
+  Test failed. See exception logs above.
   The test description was: Exception handling in test harness - FlutterError
 <<skip until matching line>>
 ══╡ EXCEPTION CAUGHT BY FLUTTER TEST FRAMEWORK ╞════════════════════════════════════════════════════
@@ -33,9 +35,11 @@ When the exception was thrown, this was the stack:
 #2      main.<anonymous closure> \(.+[/\\]dev[/\\]automated_tests[/\\]integration_test[/\\]exception_handling_test\.dart:16:5\)
 <<skip until matching line>>
 The test description was:
-Exception handling in test harness - uncaught Future error
-<<skip until matching line>>
-  Test failed\. See exception logs above\.
+  Exception handling in test harness - uncaught Future error
+════════════════════════════════════════════════════════════════════════════════════════════════════
+\d\d:\d\d \+0 -3: Exception handling in test harness - uncaught Future error \[E\]
+  Test failed. See exception logs above.
   The test description was: Exception handling in test harness - uncaught Future error
+.*(TODO\(jiahaog\): Remove the next line once https://github.com/flutter/flutter/issues/81521 is fixed)?
 <<skip until matching line>>
 .*..:.. \+0 -3: Some tests failed\. *

packages/integration_test/lib/integration_test.dart

@@ -365,4 +365,19 @@ https://flutter.dev/docs/testing/integration-tests#testing-on-firebase-test-lab
     // TODO(jiahaog): Remove when https://github.com/flutter/flutter/issues/66006 is fixed.
     super.attachRootWidget(RepaintBoundary(child: rootWidget));
   }
+
+  @override
+  void reportExceptionNoticed(FlutterErrorDetails exception) {
+    // This method is called to log errors as they happen, and they will also
+    // be eventually logged again at the end of the tests. The superclass
+    // behavior is specific to the "live" execution semantics of
+    // [LiveTestWidgetsFlutterBinding] so users don't have to wait until tests
+    // finish to see the stack traces.
+    //
+    // Disable this because Integration Tests follow the semantics of
+    // [AutomatedTestWidgetsFlutterBinding] that does not log the stack traces
+    // live, and avoids the doubly logged stack trace.
+    // TODO(jiahaog): Integration test binding should not inherit from
+    // `LiveTestWidgetsFlutterBinding` https://github.com/flutter/flutter/issues/81534
+  }
 }