1 // Copyright 2014 the V8 project authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 // Flags: --expose-debug-as debug --allow-natives-syntax --promise-extra 6 7 // Test debug events when we listen to all exceptions and 8 // there is a catch handler for the exception thrown in a Promise. 9 // We expect a normal Exception debug event to be triggered. 10 11 Debug = debug.Debug; 12 13 var expected_events = 1; 14 var log = []; 15 16 var p = new Promise(function(resolve, reject) { 17 log.push("resolve"); 18 resolve(); 19 }); 20 21 var q = p.chain( 22 function() { 23 log.push("throw"); 24 throw new Error("caught"); 25 }); 26 27 q.catch( 28 function(e) { 29 assertEquals("caught", e.message); 30 }); 31 32 function listener(event, exec_state, event_data, data) { 33 try { 34 if (event == Debug.DebugEvent.Exception) { 35 expected_events--; 36 assertTrue(expected_events >= 0); 37 assertEquals("caught", event_data.exception().message); 38 assertSame(q, event_data.promise()); 39 assertFalse(event_data.uncaught()); 40 } 41 } catch (e) { 42 %AbortJS(e + "\n" + e.stack); 43 } 44 } 45 46 Debug.setBreakOnException(); 47 Debug.setListener(listener); 48 49 log.push("end main"); 50 51 function testDone(iteration) { 52 function checkResult() { 53 try { 54 assertTrue(iteration < 10); 55 if (expected_events === 0) { 56 assertEquals(["resolve", "end main", "throw"], log); 57 } else { 58 testDone(iteration + 1); 59 } 60 } catch (e) { 61 %AbortJS(e + "\n" + e.stack); 62 } 63 } 64 65 %EnqueueMicrotask(checkResult); 66 } 67 68 testDone(0); 69
