Overview

This article is about using include matcher instead of eq matcher when you want to check hash with rspec.

code

If you have a hash of {hoge:'fuga'} and you try to check it with eq,

it do
  expect(subject).to eq { hoge: 'fuga' }
end

You can't write like, because {} is interpreted as a block. So to use eq

it do
  expected_hash = { hoge: 'fuga' }
  expect(subject).to eq expected_hash
end

You have to put the hash in a variable, like.

It may not be necessary to write an article, but

This is a hassle, so use include.

it do
  expect(subject).to include(hoge: 'fuga')
end