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- chai = require "chai"
- chai.use(require "chai-increasing")
- {assert,expect} = chai
- Bluebird = require "bluebird"
- now = require "../"
- getUptime = -> process.uptime() * 1e3
- describe "now", ->
- it "reported time differs at most 1ms from a freshly reported uptime", ->
- assert.isAtMost Math.abs(now()-getUptime()), 1
- it "two subsequent calls return an increasing number", ->
- assert.isBelow now(), now()
- it "has less than 10 microseconds overhead", ->
- assert.isBelow Math.abs(now() - now()), 0.010
- it "can be called 1 million times in under 1 second (averaging under 1 microsecond per call)", ->
- @timeout 1000
- now() for [0...1e6]
- undefined
- it "for 10,000 numbers, number n is never bigger than number n-1", ->
- stamps = (now() for [1...10000])
- expect(stamps).to.be.increasing
- it "shows that at least 0.2 ms has passed after a timeout of 1 ms", ->
- earlier = now()
- Bluebird.resolve().delay(1).then -> assert.isAbove (now()-earlier), 0.2
- it "shows that at most 3 ms has passed after a timeout of 1 ms", ->
- earlier = now()
- Bluebird.resolve().delay(1).then -> assert.isBelow (now()-earlier), 3
- it "shows that at least 190ms ms has passed after a timeout of 200ms", ->
- earlier = now()
- Bluebird.resolve().delay(200).then -> assert.isAbove (now()-earlier), 190
- it "shows that at most 220 ms has passed after a timeout of 200ms", ->
- earlier = now()
- Bluebird.resolve().delay(200).then -> assert.isBelow (now()-earlier), 220
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