1 files changed, 54 insertions, 0 deletions
diff --git a/deps/v8/test/debugger/debug/es6/default-parameters-debug.js b/deps/v8/test/debugger/debug/es6/default-parameters-debug.js
new file mode 100644
index 0000000000..87ff386b83
--- /dev/null
+++ b/deps/v8/test/debugger/debug/es6/default-parameters-debug.js
@@ -0,0 +1,54 @@
+// Copyright 2015 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: --noanalyze-environment-liveness
+
+
+Debug = debug.Debug
+
+listenerComplete = false;
+breakPointCount = 0;
+exception = null;
+
+function listener(event, exec_state, event_data, data) {
+  if (event != Debug.DebugEvent.Break) return;
+  try {
+    breakPointCount++;
+    if (breakPointCount == 1) {
+      // Break point in initializer for parameter `a`, invoked by
+      // initializer for parameter `b`
+      assertEquals('default', exec_state.frame(0).evaluate('mode').value());
+      assertTrue(exec_state.frame(1).evaluate('b').isUndefined());
+      assertTrue(exec_state.frame(1).evaluate('c').isUndefined());
+    } else if (breakPointCount == 2) {
+      // Break point in IIFE initializer for parameter `c`
+      assertEquals('modeFn', exec_state.frame(1).evaluate('a.name').value());
+      assertEquals('default', exec_state.frame(1).evaluate('b').value());
+      assertTrue(exec_state.frame(1).evaluate('c').isUndefined());
+    } else if (breakPointCount == 3) {
+      // Break point in function body --- `c` parameter is shadowed
+      assertEquals('modeFn', exec_state.frame(0).evaluate('a.name').value());
+      assertEquals('default', exec_state.frame(0).evaluate('b').value());
+      assertEquals('local', exec_state.frame(0).evaluate('d').value());
+    }
+  } catch (e) {
+    exception = e;
+  }
+};
+
+// Add the debug event listener.
+Debug.setListener(listener);
+
+function f(a = function modeFn(mode) { debugger; return mode; },
+           b = a("default"),
+           c = (function() { debugger; })()) {
+  var d = 'local';
+  debugger;
+};
+
+f();
+
+// Make sure that the debug event listener vas invoked.
+assertEquals(3, breakPointCount);
+assertNull(exception);