third_party/WebKit/LayoutTests/inspector/sources/debugger-step/debugger-step-through-promises.html

   1 <html>
   2 <head>
   3 <script src="../../../http/tests/inspector/inspector-test.js"></script>
   4 <script src="../../../http/tests/inspector/debugger-test.js"></script>
   5 <script>
   6
   7 function testFunction()
   8 {
   9     Promise.resolve(42).then(
  10         function p1()
  11         {
  12             debugger;
  13         }
  14     ).then(
  15         function p2()
  16         {
  17             var dummy = window.foo || 1;
  18             return dummy;
  19         }
  20     ).then(
  21         function p3()
  22         {
  23             var dummy = window.foo || 2;
  24             return dummy;
  25         }
  26     ).catch(function(e) {
  27         console.error("FAIL: Unexpected exception: " + e);
  28     });
  29 }
  30
  31 function test()
  32 {
  33     InspectorTest.startDebuggerTest(step1, true);
  34
  35     function step1()
  36     {
  37         InspectorTest.runTestFunctionAndWaitUntilPaused(step2);
  38     }
  39
  40     function step2()
  41     {
  42         var actions = [
  43             "Print", // debugger; at p1
  44             "StepInto", "Print",
  45             "StepInto", "Print", // entered p2
  46             "StepOver", "Print",
  47             "StepOver", "Print",
  48             "StepOver", "Print", // entered p3
  49             "StepOver", "Print",
  50         ];
  51         InspectorTest.waitUntilPausedAndPerformSteppingActions(actions, step3);
  52     }
  53
  54     function step3()
  55     {
  56         InspectorTest.completeDebuggerTest();
  57     }
  58 }
  59
  60 </script>
  61 </head>
  62
  63 <body onload="runTest()">
  64 <input type='button' onclick='testFunction()' value='Test'/>
  65 <p>
  66 Tests that debugger will step through Promise handlers while not stepping into V8 internal scripts.
  67 </p>
  68 </body>
  69 </html>