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      1 // Copyright 2010 the V8 project authors. All rights reserved.
      2 // Redistribution and use in source and binary forms, with or without
      3 // modification, are permitted provided that the following conditions are
      4 // met:
      5 //
      6 //     * Redistributions of source code must retain the above copyright
      7 //       notice, this list of conditions and the following disclaimer.
      8 //     * Redistributions in binary form must reproduce the above
      9 //       copyright notice, this list of conditions and the following
     10 //       disclaimer in the documentation and/or other materials provided
     11 //       with the distribution.
     12 //     * Neither the name of Google Inc. nor the names of its
     13 //       contributors may be used to endorse or promote products derived
     14 //       from this software without specific prior written permission.
     15 //
     16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
     22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     27 
     28 // Flags: --expose-debug-as debug
     29 // Get the Debug object exposed from the debug context global object.
     30 Debug = debug.Debug
     31 
     32 // Note: the following tests only checks the debugger handling of the
     33 // setexceptionbreak command.  It does not test whether the debugger
     34 // actually breaks on exceptions or not.  That functionality is tested
     35 // in test-debug.cc instead.
     36 
     37 // Simple function which stores the last debug event.
     38 listenerComplete = false;
     39 exception = false;
     40 
     41 var breakpoint = -1;
     42 var base_request = '"seq":0,"type":"request","command":"setexceptionbreak"'
     43 
     44 function safeEval(code) {
     45   try {
     46     return eval('(' + code + ')');
     47   } catch (e) {
     48     assertEquals(void 0, e);
     49     return undefined;
     50   }
     51 }
     52 
     53 function testArguments(dcp, arguments, success, type, enabled) {
     54   var request = '{' + base_request + ',"arguments":' + arguments + '}'
     55   var json_response = dcp.processDebugJSONRequest(request);
     56   var response = safeEval(json_response);
     57   if (success) {
     58     assertTrue(response.success, json_response);
     59     assertEquals(response.body.type, type);
     60     assertEquals(response.body.enabled, enabled);
     61   } else {
     62     assertFalse(response.success, json_response);
     63   }
     64 }
     65 
     66 function listener(event, exec_state, event_data, data) {
     67   try {
     68   if (event == Debug.DebugEvent.Break) {
     69     // Get the debug command processor.
     70     var dcp = exec_state.debugCommandProcessor("unspecified_running_state");
     71 
     72     // Test some illegal setexceptionbreak requests.
     73     var request = '{' + base_request + '}'
     74     var response = safeEval(dcp.processDebugJSONRequest(request));
     75     assertFalse(response.success);
     76 
     77     testArguments(dcp, '{}', false);
     78     testArguments(dcp, '{"type":0}', false);
     79 
     80     // Test some legal setexceptionbreak requests with default.
     81     // Note: by default, break on exceptions should be disabled.  Hence,
     82     // the first time, we send the command with no enabled arg, the debugger
     83     // should toggle it on.  The second time, it should toggle it off.
     84     testArguments(dcp, '{"type":"all"}', true, "all", true);
     85     testArguments(dcp, '{"type":"all"}', true, "all", false);
     86     testArguments(dcp, '{"type":"uncaught"}', true, "uncaught", true);
     87     testArguments(dcp, '{"type":"uncaught"}', true, "uncaught", false);
     88 
     89     // Test some legal setexceptionbreak requests with explicit enabled arg.
     90     testArguments(dcp, '{"type":"all","enabled":true}', true, "all", true);
     91     testArguments(dcp, '{"type":"all","enabled":false}', true, "all", false);
     92 
     93     testArguments(dcp, '{"type":"uncaught","enabled":true}', true,
     94                   "uncaught", true);
     95     testArguments(dcp, '{"type":"uncaught","enabled":false}', true,
     96                   "uncaught", false);
     97 
     98     // Indicate that all was processed.
     99     listenerComplete = true;
    100 
    101   }
    102   } catch (e) {
    103     exception = e
    104   };
    105 };
    106 
    107 // Add the debug event listener.
    108 Debug.setListener(listener);
    109 
    110 function g() {};
    111 
    112 
    113 // Set a break point and call to invoke the debug event listener.
    114 breakpoint = Debug.setBreakPoint(g, 0, 0);
    115 g();
    116 
    117 // Make sure that the debug event listener vas invoked.
    118 assertFalse(exception, "exception in listener")
    119 assertTrue(listenerComplete, "listener did not run to completion");
    120