什么是hrtimemock，mocking lib for process.hrtime
hrtimemock is a mocking function that causes
process.hrtime to output what ever time should have elapsed.
process.hrtime and for the second call returns the elapsed time specified by
mstime in the familiar array form.
mstimetime in milliseconds
var hrtimemock = require('hrtimemock'); hrtimemock(1000); var a = process.hrtime(); var elapsed = process.hrtime(a); console.log(elapsed); //will output [1,0]
Works only for a pair of
After that it has to be called again.