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test-inspector.js
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test-inspector.js
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'use strict';
require('../common');
const assert = require('assert');
const helper = require('./inspector-helper.js');
let scopeId;
function checkListResponse(response) {
assert.strictEqual(1, response.length);
assert.ok(response[0]['devtoolsFrontendUrl']);
assert.ok(
response[0]['webSocketDebuggerUrl']
.match(/ws:\/\/localhost:\d+\/[0-9A-Fa-f]{8}-/));
}
function expectMainScriptSource(result) {
const expected = helper.mainScriptSource();
const source = result['scriptSource'];
assert(source && (source.indexOf(expected) >= 0),
'Script source is wrong: ' + source);
}
function setupExpectBreakOnLine(line, url, session, scopeIdCallback) {
return function(message) {
if ('Debugger.paused' === message['method']) {
const callFrame = message['params']['callFrames'][0];
const location = callFrame['location'];
assert.strictEqual(url, session.scriptUrlForId(location['scriptId']));
assert.strictEqual(line, location['lineNumber']);
scopeIdCallback &&
scopeIdCallback(callFrame['scopeChain'][0]['object']['objectId']);
return true;
}
};
}
function setupExpectConsoleOutput(type, values) {
if (!(values instanceof Array))
values = [ values ];
return function(message) {
if ('Runtime.consoleAPICalled' === message['method']) {
const params = message['params'];
if (params['type'] === type) {
let i = 0;
for (const value of params['args']) {
if (value['value'] !== values[i++])
return false;
}
return i === values.length;
}
}
};
}
function setupExpectScopeValues(expected) {
return function(result) {
for (const actual of result['result']) {
const value = expected[actual['name']];
if (value)
assert.strictEqual(value, actual['value']['value']);
}
};
}
function setupExpectValue(value) {
return function(result) {
assert.strictEqual(value, result['result']['value']);
};
}
function testBreakpointOnStart(session) {
console.log('[test]',
'Verifying debugger stops on start (--debug-brk option)');
const commands = [
{ 'method': 'Runtime.enable' },
{ 'method': 'Debugger.enable' },
{ 'method': 'Debugger.setPauseOnExceptions',
'params': {'state': 'none'} },
{ 'method': 'Debugger.setAsyncCallStackDepth',
'params': {'maxDepth': 0} },
{ 'method': 'Profiler.enable' },
{ 'method': 'Profiler.setSamplingInterval',
'params': {'interval': 100} },
{ 'method': 'Debugger.setBlackboxPatterns',
'params': {'patterns': []} },
{ 'method': 'Runtime.runIfWaitingForDebugger' }
];
session
.sendInspectorCommands(commands)
.expectMessages(setupExpectBreakOnLine(0, session.mainScriptPath, session));
}
function testSetBreakpointAndResume(session) {
console.log('[test]', 'Setting a breakpoint and verifying it is hit');
const commands = [
{ 'method': 'Debugger.setBreakpointByUrl',
'params': { 'lineNumber': 5,
'url': session.mainScriptPath,
'columnNumber': 0,
'condition': ''
}
},
{ 'method': 'Debugger.resume'},
[ { 'method': 'Debugger.getScriptSource',
'params': { 'scriptId': session.mainScriptId } },
expectMainScriptSource ],
];
session
.sendInspectorCommands(commands)
.expectMessages([
setupExpectConsoleOutput('log', ['A message', 5]),
setupExpectBreakOnLine(5, session.mainScriptPath,
session, (id) => scopeId = id),
]);
}
function testInspectScope(session) {
console.log('[test]', 'Verify we can read current application state');
session.sendInspectorCommands([
[
{
'method': 'Runtime.getProperties',
'params': {
'objectId': scopeId,
'ownProperties': false,
'accessorPropertiesOnly': false,
'generatePreview': true
}
}, setupExpectScopeValues({t: 1001, k: 1})
],
[
{
'method': 'Debugger.evaluateOnCallFrame', 'params': {
'callFrameId': '{"ordinal":0,"injectedScriptId":1}',
'expression': 'k + t',
'objectGroup': 'console',
'includeCommandLineAPI': true,
'silent': false,
'returnByValue': false,
'generatePreview': true
}
}, setupExpectValue(1002)
],
[
{
'method': 'Runtime.evaluate', 'params': {
'expression': '5 * 5'
}
}, (message) => assert.strictEqual(25, message['result']['value'])
],
]);
}
function testWaitsForFrontendDisconnect(session, harness) {
console.log('[test]', 'Verify node waits for the frontend to disconnect');
session.sendInspectorCommands({ 'method': 'Debugger.resume'})
.expectStderrOutput('Waiting for the debugger to disconnect...')
.disconnect(true);
}
function runTests(harness) {
harness
.testHttpResponse('/json', checkListResponse)
.testHttpResponse('/json/list', checkListResponse)
.testHttpResponse('/json/version', assert.ok)
.runFrontendSession([
testBreakpointOnStart,
testSetBreakpointAndResume,
testInspectScope,
testWaitsForFrontendDisconnect
]).expectShutDown(55);
}
helper.startNodeForInspectorTest(runTests);