electron/spec/fixtures/module/inspector-binding.js

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2017-11-06 14:25:48 +00:00
const inspector = require('inspector')
const path = require('path')
// This test case will set a breakpoint 4 lines below
function debuggedFunction () {
let i
let accum = 0
for (i = 0; i < 5; i++) {
accum += i
}
return accum
}
let scopeCallback = null
function checkScope (session, scopeId) {
session.post('Runtime.getProperties', {
'objectId': scopeId,
'ownProperties': false,
'accessorPropertiesOnly': false,
'generatePreview': true
}, scopeCallback)
}
function debuggerPausedCallback (session, notification) {
const params = notification['params']
const callFrame = params['callFrames'][0]
const scopeId = callFrame['scopeChain'][0]['object']['objectId']
checkScope(session, scopeId)
}
function testSampleDebugSession () {
let cur = 0
const failures = []
const expects = {
i: [0, 1, 2, 3, 4],
accum: [0, 0, 1, 3, 6]
}
scopeCallback = function (error, result) {
if (error) failures.push(error)
const i = cur++
let v, actual, expected
for (v of result['result']) {
actual = v['value']['value']
expected = expects[v['name']][i]
if (actual !== expected) {
failures.push(`Iteration ${i} variable: ${v['name']} ` +
`expected: ${expected} actual: ${actual}`)
}
}
}
const session = new inspector.Session()
session.connect()
let secondSessionOpened = false
const secondSession = new inspector.Session()
try {
secondSession.connect()
secondSessionOpened = true
} catch (error) {
// expected as the session already exists
}
session.on('Debugger.paused',
(notification) => debuggerPausedCallback(session, notification))
let cbAsSecondArgCalled = false
session.post('Debugger.enable', () => { cbAsSecondArgCalled = true })
session.post('Debugger.setBreakpointByUrl', {
'lineNumber': 8,
'url': path.resolve(__dirname, __filename),
'columnNumber': 0,
'condition': ''
})
debuggedFunction()
scopeCallback = null
session.disconnect()
process.send({
'cmd': 'assert',
'debuggerEnabled': cbAsSecondArgCalled,
'secondSessionOpened': secondSessionOpened,
'success': (cur === 5) && (failures.length === 0)
})
}
testSampleDebugSession()