v8/test/mjsunit/debug-setbreakpoint.js

218 lines
8.7 KiB
JavaScript

// Copyright 2008 the V8 project authors. All rights reserved.
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following
// disclaimer in the documentation and/or other materials provided
// with the distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// Flags: --expose-debug-as debug
// Get the Debug object exposed from the debug context global object.
Debug = debug.Debug
// Simple function which stores the last debug event.
var listenerComplete = false;
var exception = false;
var f_script_id = 0;
var g_script_id = 0;
var h_script_id = 0;
var f_line = 0;
var g_line = 0;
var base_request = '"seq":0,"type":"request","command":"setbreakpoint"'
function safeEval(code) {
try {
return eval('(' + code + ')');
} catch (e) {
assertEquals(void 0, e);
return undefined;
}
}
function testArguments(dcp, arguments, success, is_script) {
var request = '{' + base_request + ',"arguments":' + arguments + '}'
var json_response = dcp.processDebugJSONRequest(request);
var response = safeEval(json_response);
if (success) {
assertTrue(response.success, request + ' -> ' + json_response);
if (is_script) {
assertEquals('scriptName', response.body.type, request + ' -> ' + json_response);
} else {
assertEquals('scriptId', response.body.type, request + ' -> ' + json_response);
}
} else {
assertFalse(response.success, request + ' -> ' + json_response);
}
return response;
}
function listener(event, exec_state, event_data, data) {
try {
if (event == Debug.DebugEvent.Break) {
// Get the debug command processor.
var dcp = exec_state.debugCommandProcessor("unspecified_running_state");
// Test some illegal setbreakpoint requests.
var request = '{' + base_request + '}'
var response = safeEval(dcp.processDebugJSONRequest(request));
assertFalse(response.success);
var mirror;
testArguments(dcp, '{}', false);
testArguments(dcp, '{"type":"xx"}', false);
testArguments(dcp, '{"type":"function"}', false);
testArguments(dcp, '{"type":"script"}', false);
testArguments(dcp, '{"target":"f"}', false);
testArguments(dcp, '{"type":"xx","target":"xx"}', false);
testArguments(dcp, '{"type":"function","target":1}', false);
testArguments(dcp, '{"type":"function","target":"f","line":-1}', false);
testArguments(dcp, '{"type":"function","target":"f","column":-1}', false);
testArguments(dcp, '{"type":"function","target":"f","ignoreCount":-1}', false);
testArguments(dcp, '{"type":"handle","target":"-1"}', false);
mirror = debug.MakeMirror(o);
testArguments(dcp, '{"type":"handle","target":' + mirror.handle() + '}', false);
// Test some legal setbreakpoint requests.
testArguments(dcp, '{"type":"function","target":"f"}', true, false);
testArguments(dcp, '{"type":"function","target":"h"}', true, false);
testArguments(dcp, '{"type":"function","target":"f","line":1}', true, false);
testArguments(dcp, '{"type":"function","target":"f","position":1}', true, false);
testArguments(dcp, '{"type":"function","target":"f","condition":"i == 1"}', true, false);
testArguments(dcp, '{"type":"function","target":"f","enabled":true}', true, false);
testArguments(dcp, '{"type":"function","target":"f","enabled":false}', true, false);
testArguments(dcp, '{"type":"function","target":"f","ignoreCount":7}', true, false);
testArguments(dcp, '{"type":"script","target":"test"}', true, true);
testArguments(dcp, '{"type":"script","target":"test"}', true, true);
testArguments(dcp, '{"type":"script","target":"test","line":1}', true, true);
testArguments(dcp, '{"type":"script","target":"test","column":1}', true, true);
testArguments(dcp, '{"type":"scriptId","target":' + f_script_id + ',"line":' + f_line + '}', true, false);
testArguments(dcp, '{"type":"scriptId","target":' + g_script_id + ',"line":' + g_line + '}', true, false);
testArguments(dcp, '{"type":"scriptId","target":' + h_script_id + ',"line":' + h_line + '}', true, false);
mirror = debug.MakeMirror(f);
testArguments(dcp, '{"type":"handle","target":' + mirror.handle() + '}', true, false);
mirror = debug.MakeMirror(o.a);
testArguments(dcp, '{"type":"handle","target":' + mirror.handle() + '}', true, false);
testArguments(dcp, '{"type":"script","target":"sourceUrlScript","line":0}', true, true);
// Set a break point on a line with the comment, and check that actual position
// is the next line after the comment.
request = '{"type":"scriptId","target":' + g_script_id + ',"line":' + (g_line + 1) + '}';
response = testArguments(dcp, request, true, false);
assertEquals(g_line + 2, response.body.actual_locations[0].line);
// Indicate that all was processed.
listenerComplete = true;
}
} catch (e) {
exception = e
};
};
// Add the debug event listener.
Debug.setListener(listener);
function f() {
a=1
};
function g() {
// Comment.
f();
};
eval('function h(){}');
eval('function sourceUrlFunc() { a = 2; }\n//# sourceURL=sourceUrlScript');
o = {a:function(){},b:function(){}}
// Check the script ids for the test functions.
f_script_id = Debug.findScript(f).id;
g_script_id = Debug.findScript(g).id;
h_script_id = Debug.findScript(h).id;
sourceURL_script_id = Debug.findScript(sourceUrlFunc).id;
assertTrue(f_script_id > 0, "invalid script id for f");
assertTrue(g_script_id > 0, "invalid script id for g");
assertTrue(h_script_id > 0, "invalid script id for h");
assertTrue(sourceURL_script_id > 0, "invalid script id for sourceUrlFunc");
assertEquals(f_script_id, g_script_id);
// Get the source line for the test functions.
f_line = Debug.findFunctionSourceLocation(f).line;
g_line = Debug.findFunctionSourceLocation(g).line;
h_line = Debug.findFunctionSourceLocation(h).line;
assertTrue(f_line > 0, "invalid line for f");
assertTrue(g_line > 0, "invalid line for g");
assertTrue(f_line < g_line);
assertEquals(h_line, 0, "invalid line for h");
// Set a break point and call to invoke the debug event listener.
Debug.setBreakPoint(g, 0, 0);
g();
// Make sure that the debug event listener was invoked.
assertTrue(listenerComplete, "listener did not run to completion: " + exception);
// Try setting breakpoint by url specified in sourceURL
var breakListenerCalled = false;
function breakListener(event) {
if (event == Debug.DebugEvent.Break)
breakListenerCalled = true;
}
Debug.setListener(breakListener);
sourceUrlFunc();
assertTrue(breakListenerCalled, "Break listener not called on breakpoint set by sourceURL");
// Breakpoint in a script with no statements test case. If breakpoint is set
// to the script body, its actual position is taken from the nearest statement
// below or like in this case is reset to the very end of the script.
// Unless some precautions made, this position becomes out-of-range and
// we get an exception.
// Gets a script of 'i1' function and sets the breakpoint at line #4 which
// should be empty.
function SetBreakpointInI1Script() {
var i_script = Debug.findScript(i1);
assertTrue(!!i_script, "invalid script for i1");
Debug.setScriptBreakPoint(Debug.ScriptBreakPointType.ScriptId,
i_script.id, 4);
}
// Creates the eval script and tries to set the breakpoint.
// The tricky part is that the script function must be strongly reachable at the
// moment. Since there's no way of simply getting the pointer to the function,
// we run this code while the script function is being activated on stack.
eval('SetBreakpointInI1Script()\nfunction i1(){}\n\n\n\nfunction i2(){}\n');