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s3_saver_spec.rb
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require 'spec_helper'
require 'capybara-screenshot/s3_saver'
describe Capybara::Screenshot::S3Saver do
let(:saver) { double('saver') }
let(:bucket_name) { double('bucket_name') }
let(:s3_client) { double('s3_client') }
let(:s3_saver) { Capybara::Screenshot::S3Saver.new(saver, s3_client, bucket_name) }
describe '.new_with_configuration' do
let(:access_key_id) { double('access_key_id') }
let(:secret_access_key) { double('secret_access_key') }
let(:s3_client_credentials_using_defaults) {
{
access_key_id: access_key_id,
secret_access_key: secret_access_key
}
}
let(:region) { double('region') }
let(:s3_client_credentials) {
s3_client_credentials_using_defaults.merge(region: region)
}
it 'destructures the configuration into its components' do
allow(Aws::S3::Client).to receive(:new).and_return(s3_client)
allow(Capybara::Screenshot::S3Saver).to receive(:new)
Capybara::Screenshot::S3Saver.new_with_configuration(saver, {
s3_client_credentials: s3_client_credentials,
bucket_name: bucket_name
})
expect(Aws::S3::Client).to have_received(:new).with(s3_client_credentials)
expect(Capybara::Screenshot::S3Saver).to have_received(:new).with(saver, s3_client, bucket_name)
end
it 'defaults the region to us-east-1' do
default_region = 'us-east-1'
allow(Aws::S3::Client).to receive(:new).and_return(s3_client)
allow(Capybara::Screenshot::S3Saver).to receive(:new)
Capybara::Screenshot::S3Saver.new_with_configuration(saver, {
s3_client_credentials: s3_client_credentials_using_defaults,
bucket_name: bucket_name
})
expect(Aws::S3::Client).to have_received(:new).with(
s3_client_credentials.merge(region: default_region)
)
expect(Capybara::Screenshot::S3Saver).to have_received(:new).with(saver, s3_client, bucket_name)
end
end
describe '#save' do
before do
allow(saver).to receive(:html_saved?).and_return(false)
allow(saver).to receive(:screenshot_saved?).and_return(false)
allow(saver).to receive(:save)
end
it 'calls save on the underlying saver' do
expect(saver).to receive(:save)
s3_saver.save
end
it 'uploads the html' do
html_path = '/foo/bar.html'
expect(saver).to receive(:html_path).and_return(html_path)
expect(saver).to receive(:html_saved?).and_return(true)
html_file = double('html_file')
expect(File).to receive(:open).with(html_path).and_yield(html_file)
expect(s3_client).to receive(:put_object).with(
bucket: bucket_name,
key: 'bar.html',
body: html_file
)
s3_saver.save
end
it 'uploads the screenshot' do
screenshot_path = '/baz/bim.jpg'
expect(saver).to receive(:screenshot_path).and_return(screenshot_path)
expect(saver).to receive(:screenshot_saved?).and_return(true)
screenshot_file = double('screenshot_file')
expect(File).to receive(:open).with(screenshot_path).and_yield(screenshot_file)
expect(s3_client).to receive(:put_object).with(
bucket: bucket_name,
key: 'bim.jpg',
body: screenshot_file
)
s3_saver.save
end
end
# Needed because we cannot depend on Verifying Doubles
# in older RSpec versions
describe 'an actual saver' do
it 'implements the methods needed by the s3 saver' do
instance_methods = Capybara::Screenshot::Saver.instance_methods
expect(instance_methods).to include(:save)
expect(instance_methods).to include(:html_saved?)
expect(instance_methods).to include(:html_path)
expect(instance_methods).to include(:screenshot_saved?)
expect(instance_methods).to include(:screenshot_path)
end
end
describe 'any other method' do
it 'transparently passes through to the saver' do
allow(saver).to receive(:foo_bar)
args = double('args')
s3_saver.foo_bar(*args)
expect(saver).to have_received(:foo_bar).with(*args)
end
end
end