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capybara-email

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Test your ActionMailer and Mailer messages in Capybara
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 Popularity
Downloads
9,360,225
Stars
339
Forks
51
Watchers
9
 Releases
Current version
3.0.2
Total releases
23
First release
2012-03-04
Latest release
2020-06-06
 Issues
Open Issues
4
Closed Issues
23
Total Issues
27
Issue Closure Rate
85%
 Pull Requests
Open Pull Requests
0
Closed Pull Requests
8
Merged Pull Requests
48
Pull Request Acceptance Rate
85%
 Development
Primary Language
Ruby
Licenses
MIT
Average date of last 50 commits
2017-03-08
Reverse Dependencies
7

 Dependencies

Development

actionmailer
> 3.0
bourne
>= 0
rake
>= 0
rspec
>= 0

Runtime

capybara
>= 2.4, < 4.0
mail
>= 0
 Project Readme

CapybaraEmail

Build Status Code Climate

Easily test ActionMailer and Mail messages in your Capybara integration tests

Installation

Add this line to your application's Gemfile:

gem 'capybara-email'

And then execute:

$ bundle

Or install it yourself as:

$ gem install capybara-email

Usage

RSpec

In your spec_helper.rb require capybara/email/rspec.

require 'capybara/email/rspec'

Example:

feature 'Emailer' do
  background do
    # will clear the message queue
    clear_emails
    visit email_trigger_path
    # Will find an email sent to test@example.com
    # and set `current_email`
    open_email('test@example.com')
  end

  scenario 'following a link' do
    current_email.click_link 'your profile'
    expect(page).to have_content 'Profile page'
  end

  scenario 'testing for content' do
    expect(current_email).to have_content 'Hello Joe!'
  end

  scenario 'testing for attachments' do
    expect(current_email.attachments.first.filename).to eq 'filename.csv'
  end

  scenario 'testing for a custom header' do
    expect(current_email.headers).to include 'header-key'
  end

  scenario 'testing for a custom header value' do
    expect(current_email.header('header-key')).to eq 'header_value'
  end

  scenario 'view the email body in your browser' do
    # the `launchy` gem is required
    current_email.save_and_open
  end
end

Cucumber

Require capybara/email in your features/support/env.rb

require 'capybara/email'

Once you have required capybara-email, gaining access to usable methods is easy as adding this module to your Cucumber World:

World(Capybara::Email::DSL)

I recommend adding this to a support file such as features/support/capybara_email.rb

require 'capybara/email'
World(Capybara::Email::DSL)

Example:

Scenario: Email is sent to winning user
  Given "me@example.com" is playing a game
  When that user picks a winning piece
  Then "me@example.com" receives an email with "You've Won!" as the subject

Then /^"([^"]*)" receives an email with "([^"]*)" as the subject$/ do |email_address, subject|
  open_email(email_address)
  expect(current_email.subject).to eq subject
end

Test::Unit

Require capybara/email at the top of test/test_helper.rb

  require 'capybara/email'

Include Capybara::Email::DSL in your test class

class ActionDispatch::IntegrationTest
  include Capybara::Email::DSL
end

Example:

class EmailTriggerControllerTest < ActionDispatch::IntegrationTest
  def setup
    # will clear the message queue
    clear_emails
    visit email_trigger_path

    # Will find an email sent to `test@example.com`
    # and set `current_email`
    open_email('test@example.com')
  end

  test 'testing any email is sent' do
    expect(all_emails).not_to be_empty
  end

  test 'following a link' do
    current_email.click_link 'your profile'
    expect(page).to have_content 'Profile page'
  end

  test 'testing for content' do
    expect(current_email).to have_content 'Hello Joe!'
  end

  test 'testing for a custom header' do
    expect(current_email.headers).to include 'header-key'
  end

  test 'testing for a custom header value' do
    expect(current_email.header('header-key')).to eq 'header_value'
  end

  test 'view the email body in your browser' do
    # the `launchy` gem is required
    current_email.save_and_open
  end
end

CurrentEmail API

The current_email method will delegate all necessary method calls to Mail::Message. So if you need to access the subject of an email:

current_email.subject

Check out API for the mail gem for details on what methods are available.

Setting your test host

When testing, it's common to want to open an email and click through to your application. To do this, you'll probably need to update your test environment, as well as Capybara's configuration.

By default, Capybara's app_host is set to http://example.com. You should update this so that it points to the same host as your test environment. In our example, we'll update both to http://localhost:3001:

# tests/test_helper.rb
ActionDispatch::IntegrationTest do
  Capybara.server_port = 3001
  Capybara.app_host = 'http://localhost:3001'
end

# config/environments/test.rb
config.action_mailer.default_url_options = { host: 'localhost', 
                                             port: 3001 }

Sending Emails with JavaScript

Sending emails asynchronously will cause #open_email to not open the correct email or not find any email at all depending on the state of the email queue. We recommend forcing a sleep prior to trying to read any email after an asynchronous event:

click_link 'Send email'
sleep 0.1
open_email 'test@example.com'

Authors

Brian Cardarella

We are very thankful for the many contributors

Versioning

This gem follows Semantic Versioning

Want to help?

Stable branches are created based upon each minor version. Please make pull requests to specific branches rather than master.

Please make sure you include tests!

Don't use tabs to indent, two spaces are the standard.

Legal

DockYard, Inc. © 2014

@dockyard

Licensed under the MIT license