How do I compare two text files with RSpec?

Question

I have a method which compares if two text files have the same content.

How do I compare if two text files have the same content using RSpec?

What does your current method look like? You say you have a method that does 'x' so please do show your code. — vgoff, Jul 11 '13 at 01:59
See http://sscce.org/. You need to show code, sample data and any errors. — the Tin Man, Jul 11 '13 at 02:47

score 15 · Answer 1 · edited Jul 02 '19 at 13:53

15

For others who stumble across this, check the FileUtils#cmp method:

require 'fileutils'
expect(FileUtils.compare_file(file1, file2)).to be_truthy

edited Jul 02 '19 at 13:53

Arturo Herrero

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answered Apr 19 '15 at 23:09

Jamon Holmgren

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Amadan · Accepted Answer · 2016-10-20T01:25:43.633

12

On a trivial level:

IO.read(file1).should == IO.read(file2)

If you want to do something nicer, you're likely going to need to write a new matcher, something like have_same_content_as defined to check for the above condition. "Up and Running with Custom RSpec Matchers" is a nice tutorial on writing custom matchers.

edited Oct 20 '16 at 01:25

answered Jul 11 '13 at 02:03

Amadan

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@Dom: I found it elsewhere and fixed the link. – Amadan Oct 20 '16 at 01:25

How do I compare two text files with RSpec?

2 Answers2