Test file download with Capybara and Cucumber - webkit

Question

I am trying to test a download using Capybara and Cucumber.
The test steps look like:
When(/^I export to CSV$/) do
export_button = find("div.results-table input[type=\"submit\"]")
export_button.click
end
Then(/^I should be prompted to download the CSV$/) do
Capybara.current_driver = :webkit #switch driver so we can see the response_headers
page.response_headers['Content-Disposition'].should include("filename=\"transactions\"")
end
I had to add the capybara webkit driver in the middle of the test so that I can use the response_headers, but the response_headers seem to return an empty object. I am using the default driver before that because I need to click the button, but I wonder if switching drivers like this is why I am not getting anything in the response_header?

Answer 1

I have done it in my recent project as shown below
Given Download folder for export is empty
And Joe clicks "Download Csv" button
Then The contents of the downloaded csv should be:
|TEAM_ID | TEAM_EXTERNAL_ID | TYPE | REG_OPTION | TEAM_REG_BRACKET | RACE_NAME | WAVE | BIB | BRACKET | STATUS | TEAM_NAME | TEAM_TYPE | ATHLETE_COUNT | MIN_MEMBERS | MAX_MEMBERS | TEAM_MEMBERS |
| 8 | | TEAM | 10k Aggregate | N/A | 10k | Universal | 208 | Overall | DNF | Team 08 | Aggregate |0 | | | |
And the capybara for this cucumber will be like
Given(/^Download folder for export is empty$/) do
FileUtils.rm_rf('/home/vagrant/Downloads/')
end
And(/^(\S*) clicks "([^"]*)" button$/) do |user, arg|
button = find_button(arg)
button.click
end
And /^The contents of the downloaded csv should be:$/ do |table|
for i in 0..5
if(Dir.glob('/home/vagrant/Downloads/*.csv'))
break;
end
sleep(1); // if not found wait one second before continue looping
end
if(Dir.glob('/home/vagrant/Downloads/*.csv'))
Dir['/home/vagrant/Downloads/*'].each do |file_name|
arr = CSV.read(file_name, :col_sep => "\t", :row_sep => "\r\n", encoding: "UTF-16:UTF-8")
table.raw[0...table.raw.length].each_with_index do |row, row_index|
row.each_with_index do |value, index|
if arr[row_index][index] == nil
arr[row_index][index] = ""
end
if index == 1
else
puts "#{index}" + 'Value in table = ' + "#{value} + 'Value in file' + #{arr[row_index][index]}"
value.should eq arr[row_index][index]
end
end
end
end
else
puts "/home/vagrant/Downloads/*.csv file not found!"
end
end
Hope this resolves you problem for downloading CSV and verifying its contents too :)