overleaf/libraries/metrics/test/unit/coffee/timeAsyncMethodTests.coffee
2017-03-16 09:49:45 +00:00

49 lines
1.3 KiB
CoffeeScript

require('coffee-script')
chai = require('chai')
should = chai.should()
expect = chai.expect
path = require('path')
modulePath = path.join __dirname, '../../../timeAsyncMethod.coffee'
SandboxedModule = require('sandboxed-module')
sinon = require("sinon")
describe 'timeAsyncMethod', ->
beforeEach ->
@Timer = {done: sinon.stub()}
@TimerConstructor = sinon.stub().returns(@Timer)
@metrics = {
Timer: @TimerConstructor
}
@timeAsyncMethod = SandboxedModule.require modulePath, requires:
'./metrics': @metrics
@testObject = {
nextNumber: (n, callback=(err, result)->) ->
setTimeout(
() ->
callback(null, n+1)
, 100
)
}
it 'should have the testObject behave correctly before wrapping', (done) ->
@testObject.nextNumber 2, (err, result) ->
expect(err).to.not.exist
expect(result).to.equal 3
done()
it 'should wrap method without error', (done) ->
@timeAsyncMethod @testObject, 'nextNumber', 'test.nextNumber'
done()
it 'should transparently wrap method invocation in timer', (done) ->
@timeAsyncMethod @testObject, 'nextNumber', 'test.nextNumber'
@testObject.nextNumber 2, (err, result) =>
expect(err).to.not.exist
expect(result).to.equal 3
expect(@TimerConstructor.callCount).to.equal 1
expect(@Timer.done.callCount).to.equal 1
done()