How to check if two files have the same content?

Question

I am using mocha/supertest/should.js to test my Rest Service

GET /files/ returns file as stream.

How can I assert in should.js

Answer 1

In should.js you can use .eql to compare Buffer's instances:

> var buf1 = new Buffer('abc');
undefined
> var buf2 = new Buffer('abc');
undefined
> var buf3 = new Buffer('dsfg');
undefined
> buf1.should.be.eql(buf1)
...
> buf1.should.be.eql(buf2)
...
> buf1.should.be.eql(buf3)
AssertionError: expected  to equal 
    ...
>