Like database_cleaner, but for tests that do file manipulation.
Add this line to your application's Gemfile and bundle:
group :test do
gem 'filesystem_cleaner'
end
# spec/spec_helper.rb
RSpec.configure do |config|
fs_cleaner = FileSystemCleaner.new(
Rails.root.join("public", "system", "test", "files"),
Rails.root.join("tmp, "files.bak")
)
config.before(:each) { fs_cleaner.save_files!(example) }
config.after(:each) { fs_cleaner.restore_files!(example) }
end
# spec/some_spec.rb
describe "a filesystem modification", file: true do # `file: true` activates the cleaner
before do
test_file = Rails.root.join("public", "system", "test", "files", "#{filename}.txt")
`cp #{fixture_file} #{test_file}`
end
it "reads the file" do
expect(MyFileReader.new(filename).to_s).to eq(File.read(fixture_file))
end
let(:filename) { SecureRandom.uuid }
let(:fixture_file) { Rails.root.join("spec", "fixtures", "some_data.txt") }
end
After the test runs, public/system/test/files
is restored to it's pre-test state.
This has nothing to do with filesystem cleaner, but is a neat trick if you have to look at the files after the test to know if they were modified correctly (e.g. pdfs)
describe "applying a signature", file: true do
before do
`cp #{Settings.fixture_drawing} #{working_file}`
post "/documents/#{document.id}/sign"
end
it "applies the engineer's signature" do
# `quality_assurance_dir` is _not_ cleaned by filesystem_cleaner
`cp #{working_file} #{Settings.quality_assurance_dir}`
fname = filename
RSpec.configure do |config|
config.after(:suite) do
qa_file_path = "#{Settings.quality_assurance_dir}/#{fname}"
message = "ssh me@my-host cat #{qa_file_path} | display - "
puts
puts
print message
end
end
end
end
Produces a nice output:
$ bundle exec rspec
............*.......
ssh me@my-host cat /home/me/app/spec/support/qa/b5f69a0-aa53-c39e0c27e2 | display -
Pending:
Some spec is pending for some reason or other
# No reason given
# ./spec/mailers/mailer_spec.rb:8
Now you can just copy and paste that ssh command to view the file locally.
- Fork it
- Create your feature branch (
git checkout -b my-new-feature
) - Commit your changes (
git commit -am 'Add some feature'
) - Push to the branch (
git push origin my-new-feature
) - Create new Pull Request