Change which ExceptionEvents are triggered by Promises

test/mjsunit/es6/debug-promises/promise-race-uncaught.js

Index: test/mjsunit/es6/debug-promises/promise-race-uncaught.js
diff --git a/test/mjsunit/es6/debug-promises/promise-race-uncaught.js b/test/mjsunit/es6/debug-promises/promise-race-uncaught.js
index 57955c01ef079366436271a19fc05536d66f7c59..b8a424f14d730888335e327ff71bc45b4585706b 100644
--- a/test/mjsunit/es6/debug-promises/promise-race-uncaught.js
+++ b/test/mjsunit/es6/debug-promises/promise-race-uncaught.js
@@ -6,13 +6,14 @@
 
 // Test debug events when we only listen to uncaught exceptions and a
 // Promise p3 created by Promise.race has no catch handler, and is rejected
-// because one of the Promises p2 passed to Promise.all is rejected. We
-// expect two Exception debug events to be triggered, for p2 and p3 each,
-// because neither has an user-defined catch handler.
+// because one of the Promises p2 passed to Promise.race is rejected.
+// We expect one event for p2; the system recognizes the rejection of p3
+// to be redundant and based on the rejection of p2 and does not trigger
+// an additional rejection.
 
 var Debug = debug.Debug;
 
-var expected_events = 2;
+var expected_events = 1;
 var log = [];
 
 var p1 = Promise.resolve();
@@ -35,13 +36,9 @@ function listener(event, exec_state, event_data, data) {
     assertTrue(expected_events >= 0);
     assertEquals("uncaught", event_data.exception().message);
     assertTrue(event_data.promise() instanceof Promise);
-    if (expected_events === 1) {
-      // Assert that the debug event is triggered at the throw site.
-      assertTrue(exec_state.frame(0).sourceLineText().indexOf("// event") > 0);
-      assertEquals("p2", event_data.promise().name);
-    } else {
-      assertEquals("p3", event_data.promise().name);
-    }
+    // Assert that the debug event is triggered at the throw site.
+    assertTrue(exec_state.frame(0).sourceLineText().indexOf("// event") > 0);
+    assertEquals("p2", event_data.promise().name);
     assertTrue(event_data.uncaught());
   } catch (e) {
     %AbortJS(e + "\n" + e.stack);