v8/test/debugger/debug/debug-clearbreakpoint.js

// Copyright 2008 the V8 project authors. All rights reserved.
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// modification, are permitted provided that the following conditions are
// met:
//
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Debug = debug.Debug

// Simple function which stores the last debug event.
listenerComplete = false;
exception = false;

var breakpoint = -1;

function listener(event, exec_state, event_data, data) {
  try {
    if (event == Debug.DebugEvent.Break) {
      // Clear once.
      Debug.clearBreakPoint(breakpoint);
      // Indicate that all was processed.
      listenerComplete = true;
    }
  } catch (e) {
    exception = e
  };
};

// Add the debug event listener.
Debug.setListener(listener);

function g() {};

// Set a break point and call to invoke the debug event listener.
breakpoint = Debug.setBreakPoint(g, 0, 0);
g();

// Make sure that the debug event listener vas invoked.
assertTrue(listenerComplete, "listener did not run to completion");
assertFalse(exception, "exception in listener")