CSV RSpec is the project I'm currently participating in

expect(csv).to have_content('value')

I wrote it in the form of, but since it became necessary to check the value for each line, I was researching various things, but it did not come out in a simple search, so I made a note.

Assuming the following csv

column_0	column_1
value_1	value_2
value_3	value_4

it 'example' do
  csv_content = Sample.csv_content
  csv = CSV.parse(csv_content)
  # [line number][Column index]
  expect(csv[0][0]).to eq 'value_1'
  expect(csv[0][1]).to eq 'value_2'
  expect(csv[1][0]).to eq 'value_3'
  expect(csv[1][1]).to eq 'value_4'

  #You can also compare line by line
  expect(csv[0]).to eq ['value_1', 'value_2']
  expect(csv[1]).to eq ['value_3', 'value_4']
end

This will speed up the test.

Postscript

In the comments, I told you what is called CSV.table!

it 'example' do
  csv_content_path = Sample.csv_content.path
  table = CSV.table(csv_content_path) #Pass Path
  table.headers # => [:column_0, :column_1]

  # [Header name][line number]
  expect(table[:column_0][0]).to eq 'value_1'
  expect(table[:column_0][1]).to eq 'value_2'
  expect(table[:column_1][0]).to eq 'value_3'
  expect(table[:column_1][1]).to eq 'value_4'

  #Get line by line
  expect(table[0]).to eq ['value_1', 'value_2']
  expect(table[1]).to eq ['value_3', 'value_4']

  #Get by column
  expect(table[:column_0]).to eq ['value_1', 'value_3']
  expect(table[:column_1]).to eq ['value_2', 'value_4']
end

This may be easier to use if it is being implemented. It seems that there are quite a few uses that you can get all at once for each column.

However, CSV.table needs to pass the path of the file, so be careful there.

Reference link https://qiita.com/gotchane/items/e615fed15901aed6c18a https://melborne.github.io/2013/01/24/csv-table-method-is-awesome/ https://docs.ruby-lang.org/ja/latest/class/CSV=3a=3aTable.html

[RUBY] Check CSV value with RSpec

Postscript