Index: test/mjsunit/debug-stepin-foreach.js |
diff --git a/test/mjsunit/debug-stepin-foreach.js b/test/mjsunit/debug-stepin-foreach.js |
new file mode 100644 |
index 0000000000000000000000000000000000000000..fa728e019c11ed204a6a751e925598d3eab30ea4 |
--- /dev/null |
+++ b/test/mjsunit/debug-stepin-foreach.js |
@@ -0,0 +1,51 @@ |
+// Copyright 2014 the V8 project authors. All rights reserved. |
+// Use of this source code is governed by a BSD-style license that can be |
+// found in the LICENSE file. |
+ |
+// Flags: --expose-debug-as debug |
+// Tests stepping into through Array.prototype.forEach callbacks. |
+ |
+Debug = debug.Debug |
+var exception = null; |
+var break_count = 0; |
+var expected_breaks = -1; |
+ |
+function listener(event, exec_state, event_data, data) { |
+ try { |
+ if (event == Debug.DebugEvent.Break) { |
+ assertTrue(exec_state.frameCount() != 0, "FAIL: Empty stack trace"); |
+ if (!break_count) { |
+ // Count number of expected breakpoints in this source file. |
+ var source_text = exec_state.frame(0).func().script().source(); |
+ expected_breaks = source_text.match(/\/\/\s*Break\s+\d+\./g).length; |
+ print("Expected breaks: " + expected_breaks); |
+ } |
+ var source = exec_state.frame(0).sourceLineText(); |
+ print("paused at: " + source); |
+ assertTrue(source.indexOf("// Break " + break_count + ".") > 0, |
+ "Unexpected pause at: " + source + "\n" + |
+ "Expected: // Break " + break_count + "."); |
+ ++break_count; |
+ if (break_count !== expected_breaks) { |
+ exec_state.prepareStep(Debug.StepAction.StepIn, 1); |
+ } |
+ } |
+ } catch(e) { |
+ exception = e; |
+ print(e, e.stack); |
+ } |
+}; |
+ |
+Debug.setListener(listener); |
+ |
+debugger; // Break 0. |
+[1,2].forEach(callback); // Break 1. |
+ |
+function callback(x) { |
+ return x; // Break 2. // Break 4. |
+} // Break 3. // Break 5. |
+ |
+assertNull(exception); // Break 6. |
+assertEquals(expected_breaks, break_count); |
+ |
+Debug.setListener(null); |