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.
30Debug = 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// Note: The following function g() is purposedly placed here so that
38// its line numbers will not change should we add more lines of test code
39// below.  The test checks for these line numbers.
40
41function g() { // line 40
42  var x = 5;
43  var y = 6;
44  var z = 7;
45};
46
47var first_lineno = 40; // Must be the line number of g() above.
48                       // The first line of the file is line 0.
49
50// Simple function which stores the last debug event.
51listenerComplete = false;
52exception = false;
53
54var breakpoint1 = -1;
55var base_request = '"seq":0,"type":"request","command":"listbreakpoints"'
56
57function safeEval(code) {
58  try {
59    return eval('(' + code + ')');
60  } catch (e) {
61    assertEquals(void 0, e);
62    return undefined;
63  }
64}
65
66
67function clearBreakpoint(dcp, breakpoint_id) {
68  var base_request = '"seq":0,"type":"request","command":"clearbreakpoint"'
69  var arguments = '{"breakpoint":' + breakpoint_id + '}'
70  var request = '{' + base_request + ',"arguments":' + arguments + '}'
71  var json_response = dcp.processDebugJSONRequest(request);
72}
73
74
75function setBreakOnException(dcp, type, enabled) {
76  var base_request = '"seq":0,"type":"request","command":"setexceptionbreak"'
77  var arguments = '{"type":"' + type + '","enabled":' + enabled + '}'
78  var request = '{' + base_request + ',"arguments":' + arguments + '}'
79  var json_response = dcp.processDebugJSONRequest(request);
80}
81
82
83function testArguments(dcp, success, breakpoint_ids, breakpoint_linenos,
84                       break_on_all, break_on_uncaught) {
85  var request = '{' + base_request + '}'
86  var json_response = dcp.processDebugJSONRequest(request);
87  var response = safeEval(json_response);
88  var num_breakpoints = breakpoint_ids.length;
89
90  if (success) {
91    assertTrue(response.success, json_response);
92    assertEquals(response.body.breakpoints.length, num_breakpoints);
93    if (num_breakpoints > 0) {
94      var breakpoints = response.body.breakpoints;
95      for (var i = 0; i < breakpoints.length; i++) {
96        var id = breakpoints[i].number;
97        var found = false;
98        for (var j = 0; j < num_breakpoints; j++) {
99          if (breakpoint_ids[j] == id) {
100            assertEquals(breakpoints[i].line, breakpoint_linenos[j]);
101            found = true;
102            break;
103          }
104        }
105        assertTrue(found, "found unexpected breakpoint " + id);
106      }
107    }
108    assertEquals(response.body.breakOnExceptions, break_on_all);
109    assertEquals(response.body.breakOnUncaughtExceptions, break_on_uncaught);
110  } else {
111    assertFalse(response.success, json_response);
112  }
113}
114
115
116function listener(event, exec_state, event_data, data) {
117  try {
118  if (event == Debug.DebugEvent.Break) {
119    // Get the debug command processor.
120    var dcp = exec_state.debugCommandProcessor("unspecified_running_state");
121
122    // Test with the 1 breakpoint already set:
123    testArguments(dcp, true, [ breakpoint1 ], [ first_lineno ], false, false);
124
125    setBreakOnException(dcp, "all", true);
126    testArguments(dcp, true, [ breakpoint1 ], [ first_lineno ], true, false);
127
128    setBreakOnException(dcp, "uncaught", true);
129    testArguments(dcp, true, [ breakpoint1 ], [ first_lineno ], true, true);
130
131    setBreakOnException(dcp, "all", false);
132    testArguments(dcp, true, [ breakpoint1 ], [ first_lineno ], false, true);
133
134    setBreakOnException(dcp, "uncaught", false);
135    testArguments(dcp, true, [ breakpoint1 ], [ first_lineno ], false, false);
136
137    // Clear the one breakpoint and retest:
138    clearBreakpoint(dcp, breakpoint1);
139    testArguments(dcp, true, [], [], false, false);
140
141    setBreakOnException(dcp, "all", true);
142    testArguments(dcp, true, [], [], true, false);
143
144    setBreakOnException(dcp, "uncaught", true);
145    testArguments(dcp, true, [], [], true, true);
146
147    setBreakOnException(dcp, "all", false);
148    testArguments(dcp, true, [], [], false, true);
149
150    setBreakOnException(dcp, "uncaught", false);
151    testArguments(dcp, true, [], [], false, false);
152
153    // Set some more breakpoints, and clear them in various orders:
154    var bp2 = Debug.setBreakPoint(g, 1, 0);
155    testArguments(dcp, true, [ bp2 ],
156                  [ first_lineno + 1 ],
157                  false, false);
158
159    var bp3 = Debug.setBreakPoint(g, 2, 0);
160    testArguments(dcp, true, [ bp2, bp3 ],
161                  [ first_lineno + 1, first_lineno + 2 ],
162                  false, false);
163
164    var bp4 = Debug.setBreakPoint(g, 3, 0);
165    testArguments(dcp, true, [ bp2, bp3, bp4 ],
166                  [ first_lineno + 1, first_lineno + 2, first_lineno + 3 ],
167                  false, false);
168
169    clearBreakpoint(dcp, bp3);
170    testArguments(dcp, true, [ bp2, bp4 ],
171                  [ first_lineno + 1, first_lineno + 3 ],
172                  false, false);
173
174    clearBreakpoint(dcp, bp4);
175    testArguments(dcp, true, [ bp2 ],
176                  [ first_lineno + 1 ],
177                  false, false);
178
179    var bp5 = Debug.setBreakPoint(g, 3, 0);
180    testArguments(dcp, true, [ bp2, bp5 ],
181                  [ first_lineno + 1, first_lineno + 3 ],
182                  false, false);
183
184    clearBreakpoint(dcp, bp2);
185    testArguments(dcp, true, [ bp5 ],
186                  [ first_lineno + 3 ],
187                  false, false);
188
189    clearBreakpoint(dcp, bp5);
190    testArguments(dcp, true, [], [], false, false);
191
192    // Indicate that all was processed.
193    listenerComplete = true;
194
195  }
196  } catch (e) {
197    exception = e
198  };
199};
200
201// Add the debug event listener.
202Debug.setListener(listener);
203
204// Set a break point and call to invoke the debug event listener.
205breakpoint1 = Debug.setBreakPoint(g, 0, 0);
206g();
207
208// Make sure that the debug event listener vas invoked.
209assertFalse(exception, "exception in listener")
210assertTrue(listenerComplete, "listener did not run to completion");
211