/
utils.js
77 lines (64 loc) · 1.47 KB
/
utils.js
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var Hash = require('hashish')
// capture terminal output, so that we might
// assert against it.
exports.checkOutput = function (f, argv, cb) {
var exit = false
var _exit = process.exit
var _emit = process.emit
var _env = process.env
var _argv = process.argv
var _error = console.error
var _log = console.log
var _warn = console.warn
process.exit = function () { exit = true }
process.env = Hash.merge(process.env, { _: 'node' })
process.argv = argv || [ './usage' ]
var errors = []
var logs = []
var warnings = []
console.error = function (msg) { errors.push(msg) }
console.log = function (msg) { logs.push(msg) }
console.warn = function (msg) { warnings.push(msg) }
var result
if (typeof cb === 'function') {
process.exit = function () {
exit = true
cb(null, done())
}
process.emit = function (ev, value) {
if (ev === 'uncaughtException') {
done()
cb(value)
return true
}
return _emit.apply(this, arguments)
}
f()
} else {
try {
result = f()
} finally {
reset()
}
return done()
}
function reset () {
process.exit = _exit
process.emit = _emit
process.env = _env
process.argv = _argv
console.error = _error
console.log = _log
console.warn = _warn
}
function done () {
reset()
return {
errors: errors,
logs: logs,
warnings: warnings,
exit: exit,
result: result
}
}
}