Module: RSpec::Rails::Matchers

Defined in:
lib/rspec/rails/matchers.rb,
lib/rspec/rails/matchers/be_a_new.rb,
lib/rspec/rails/matchers/be_valid.rb,
lib/rspec/rails/matchers/active_job.rb,
lib/rspec/rails/matchers/send_email.rb,
lib/rspec/rails/matchers/redirect_to.rb,
lib/rspec/rails/matchers/action_cable.rb,
lib/rspec/rails/matchers/base_matcher.rb,
lib/rspec/rails/matchers/be_new_record.rb,
lib/rspec/rails/matchers/have_rendered.rb,
lib/rspec/rails/matchers/action_mailbox.rb,
lib/rspec/rails/matchers/have_http_status.rb,
lib/rspec/rails/matchers/routing_matchers.rb,
lib/rspec/rails/matchers/have_enqueued_mail.rb,
lib/rspec/rails/matchers/action_cable/have_streams.rb,
lib/rspec/rails/matchers/action_cable/have_broadcasted_to.rb

Overview

Container module for Rails specific matchers.

Defined Under Namespace

Modules: ActionCable, ActionMailbox, ActiveJob, HaveHttpStatus, RedirectTo, RenderTemplate, RoutingMatchers Classes: BaseMatcher, BeANew, SendEmail

Instance Method Summary collapse

Instance Method Details

#be_a_new(model_class) ⇒ Object

Passes if actual is an instance of model_class and returns true for new_record?. Typically used to specify instance variables assigned to views by controller actions

Use the with method to specify the specific attributes to match on the new record.

Examples:

get :new
assigns(:thing).should be_a_new(Thing)

post :create, :thing => { :name => "Illegal Value" }
assigns(:thing).should be_a_new(Thing).with(:name => nil)


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# File 'lib/rspec/rails/matchers/be_a_new.rb', line 78

def be_a_new(model_class)
  BeANew.new(model_class)
end

#be_new_record ⇒ Object

Passes if actual returns true for new_record?.

Examples:

get :new
expect(assigns(:thing)).to be_new_record


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# File 'lib/rspec/rails/matchers/be_new_record.rb', line 25

def be_new_record
  BeANewRecord.new
end

#be_valid(*args) ⇒ Object

Passes if the given model instance's valid? method is true, meaning all of the ActiveModel::Validations passed and no errors exist. If a message is not given, a default message is shown listing each error.

Examples:

thing = Thing.new
expect(thing).to be_valid


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# File 'lib/rspec/rails/matchers/be_valid.rb', line 44

def be_valid(*args)
  BeValid.new(*args)
end

#have_been_enqueued ⇒ Object

Passes if a job has been enqueued. May chain at_least, at_most or exactly to specify a number of times.

Examples:

before { ActiveJob::Base.queue_adapter.enqueued_jobs.clear }

HeavyLiftingJob.perform_later
expect(HeavyLiftingJob).to have_been_enqueued

HelloJob.perform_later
HeavyLiftingJob.perform_later
expect(HeavyLiftingJob).to have_been_enqueued.exactly(:once)

3.times { HelloJob.perform_later }
expect(HelloJob).to have_been_enqueued.at_least(2).times

HelloJob.perform_later
expect(HelloJob).to enqueue_job(HelloJob).at_most(:twice)

HelloJob.perform_later
HeavyLiftingJob.perform_later
expect(HelloJob).to have_been_enqueued
expect(HeavyLiftingJob).to have_been_enqueued

HelloJob.set(wait_until: Date.tomorrow.noon, queue: "low").perform_later(42)
expect(HelloJob).to have_been_enqueued.with(42).on_queue("low").at(Date.tomorrow.noon)

HelloJob.set(queue: "low").perform_later(42)
expect(HelloJob).to have_been_enqueued.with(42).on_queue("low").at(:no_wait)


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# File 'lib/rspec/rails/matchers/active_job.rb', line 377

def have_been_enqueued
  check_active_job_adapter
  ActiveJob::HaveBeenEnqueued.new
end

#have_been_performed ⇒ Object

Passes if a job has been performed. May chain at_least, at_most or exactly to specify a number of times.

Examples:

before do
  ActiveJob::Base.queue_adapter.performed_jobs.clear
  ActiveJob::Base.queue_adapter.perform_enqueued_jobs = true
  ActiveJob::Base.queue_adapter.perform_enqueued_at_jobs = true
end

HeavyLiftingJob.perform_later
expect(HeavyLiftingJob).to have_been_performed

HelloJob.perform_later
HeavyLiftingJob.perform_later
expect(HeavyLiftingJob).to have_been_performed.exactly(:once)

3.times { HelloJob.perform_later }
expect(HelloJob).to have_been_performed.at_least(2).times

HelloJob.perform_later
HeavyLiftingJob.perform_later
expect(HelloJob).to have_been_performed
expect(HeavyLiftingJob).to have_been_performed

HelloJob.set(wait_until: Date.tomorrow.noon, queue: "low").perform_later(42)
expect(HelloJob).to have_been_performed.with(42).on_queue("low").at(Date.tomorrow.noon)


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# File 'lib/rspec/rails/matchers/active_job.rb', line 450

def have_been_performed
  check_active_job_adapter
  ActiveJob::HaveBeenPerformed.new
end

#have_broadcasted_to(target = nil) ⇒ Object Also known as: broadcast_to

Passes if a message has been sent to a stream/object inside a block. May chain at_least, at_most or exactly to specify a number of times. To specify channel from which message has been broadcasted to object use from_channel.

Examples:

expect {
  ActionCable.server.broadcast "messages", text: 'Hi!'
}.to have_broadcasted_to("messages")

expect {
  SomeChannel.broadcast_to(user)
}.to have_broadcasted_to(user).from_channel(SomeChannel)

# Using alias
expect {
  ActionCable.server.broadcast "messages", text: 'Hi!'
}.to broadcast_to("messages")

expect {
  ActionCable.server.broadcast "messages", text: 'Hi!'
  ActionCable.server.broadcast "all", text: 'Hi!'
}.to have_broadcasted_to("messages").exactly(:once)

expect {
  3.times { ActionCable.server.broadcast "messages", text: 'Hi!' }
}.to have_broadcasted_to("messages").at_least(2).times

expect {
  ActionCable.server.broadcast "messages", text: 'Hi!'
}.to have_broadcasted_to("messages").at_most(:twice)

expect {
  ActionCable.server.broadcast "messages", text: 'Hi!'
}.to have_broadcasted_to("messages").with(text: 'Hi!')


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# File 'lib/rspec/rails/matchers/action_cable.rb', line 48

def have_broadcasted_to(target = nil)
  check_action_cable_adapter

  ActionCable::HaveBroadcastedTo.new(target, channel: described_class)
end

#have_enqueued_job(job = nil) ⇒ Object Also known as: enqueue_job

Passes if a job has been enqueued inside block. May chain at_least, at_most or exactly to specify a number of times.

Examples:

expect {
  HeavyLiftingJob.perform_later
}.to have_enqueued_job

# Using alias
expect {
  HeavyLiftingJob.perform_later
}.to enqueue_job

expect {
  HelloJob.perform_later
  HeavyLiftingJob.perform_later
}.to have_enqueued_job(HelloJob).exactly(:once)

expect {
  3.times { HelloJob.perform_later }
}.to have_enqueued_job(HelloJob).at_least(2).times

expect {
  HelloJob.perform_later
}.to have_enqueued_job(HelloJob).at_most(:twice)

expect {
  HelloJob.perform_later
  HeavyLiftingJob.perform_later
}.to have_enqueued_job(HelloJob).and have_enqueued_job(HeavyLiftingJob)

expect {
  HelloJob.set(wait_until: Date.tomorrow.noon, queue: "low").perform_later(42)
}.to have_enqueued_job.with(42).on_queue("low").at(Date.tomorrow.noon)

expect {
  HelloJob.set(queue: "low").perform_later(42)
}.to have_enqueued_job.with(42).on_queue("low").at(:no_wait)

expect {
  HelloJob.perform_later('rspec_rails', 'rails', 42)
}.to have_enqueued_job.with { |from, to, times|
  # Perform more complex argument matching using dynamic arguments
  expect(from).to include "_#{to}"
}


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# File 'lib/rspec/rails/matchers/active_job.rb', line 342

def have_enqueued_job(job = nil)
  check_active_job_adapter
  ActiveJob::HaveEnqueuedJob.new(job)
end

#have_enqueued_mail(mailer_class = nil, mail_method_name = nil) ⇒ Object Also known as: have_enqueued_email, enqueue_mail, enqueue_email

Passes if an email has been enqueued inside block. May chain with to specify expected arguments. May chain at_least, at_most or exactly to specify a number of times. May chain at to specify a send time. May chain on_queue to specify a queue.

Examples:

expect {
  MyMailer.welcome(user).deliver_later
}.to have_enqueued_mail

expect {
  MyMailer.welcome(user).deliver_later
}.to have_enqueued_mail(MyMailer)

expect {
  MyMailer.welcome(user).deliver_later
}.to have_enqueued_mail(MyMailer, :welcome)

# Using alias
expect {
  MyMailer.welcome(user).deliver_later
}.to enqueue_mail(MyMailer, :welcome)

expect {
  MyMailer.welcome(user).deliver_later
}.to have_enqueued_mail(MyMailer, :welcome).with(user)

expect {
  MyMailer.welcome(user).deliver_later
  MyMailer.welcome(user).deliver_later
}.to have_enqueued_mail(MyMailer, :welcome).at_least(:once)

expect {
  MyMailer.welcome(user).deliver_later
}.to have_enqueued_mail(MyMailer, :welcome).at_most(:twice)

expect {
  MyMailer.welcome(user).deliver_later(wait_until: Date.tomorrow.noon)
}.to have_enqueued_mail(MyMailer, :welcome).at(Date.tomorrow.noon)

expect {
  MyMailer.welcome(user).deliver_later(queue: :urgent_mail)
}.to have_enqueued_mail(MyMailer, :welcome).on_queue(:urgent_mail)


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# File 'lib/rspec/rails/matchers/have_enqueued_mail.rb', line 218

def have_enqueued_mail(mailer_class = nil, mail_method_name = nil)
  HaveEnqueuedMail.new(mailer_class, mail_method_name)
end

#have_http_status(target) ⇒ Object

Passes if response has a matching HTTP status code.

The following symbolic status codes are allowed:

  • Rack::Utils::SYMBOL_TO_STATUS_CODE
  • One of the defined ActionDispatch::TestResponse aliases:
    • :error
    • :missing
    • :redirect
    • :success

Examples:

Accepts numeric and symbol statuses

expect(response).to have_http_status(404)
expect(response).to have_http_status(:created)
expect(response).to have_http_status(:success)
expect(response).to have_http_status(:error)
expect(response).to have_http_status(:missing)
expect(response).to have_http_status(:redirect)

Works with standard response objects and Capybara's page

expect(response).to have_http_status(404)
expect(page).to     have_http_status(:created)

Raises:

  • (ArgumentError)

See Also:



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# File 'lib/rspec/rails/matchers/have_http_status.rb', line 378

def have_http_status(target)
  raise ArgumentError, "Invalid HTTP status: nil" unless target

  HaveHttpStatus.matcher_for_status(target)
end

#have_performed_job(job = nil) ⇒ Object Also known as: perform_job

Passes if a job has been performed inside block. May chain at_least, at_most or exactly to specify a number of times.

Examples:

expect {
  perform_jobs { HeavyLiftingJob.perform_later }
}.to have_performed_job

expect {
  perform_jobs {
    HelloJob.perform_later
    HeavyLiftingJob.perform_later
  }
}.to have_performed_job(HelloJob).exactly(:once)

expect {
  perform_jobs { 3.times { HelloJob.perform_later } }
}.to have_performed_job(HelloJob).at_least(2).times

expect {
  perform_jobs { HelloJob.perform_later }
}.to have_performed_job(HelloJob).at_most(:twice)

expect {
  perform_jobs {
    HelloJob.perform_later
    HeavyLiftingJob.perform_later
  }
}.to have_performed_job(HelloJob).and have_performed_job(HeavyLiftingJob)

expect {
  perform_jobs {
    HelloJob.set(wait_until: Date.tomorrow.noon, queue: "low").perform_later(42)
  }
}.to have_performed_job.with(42).on_queue("low").at(Date.tomorrow.noon)


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# File 'lib/rspec/rails/matchers/active_job.rb', line 417

def have_performed_job(job = nil)
  check_active_job_adapter
  ActiveJob::HavePerformedJob.new(job)
end

#receive_inbound_email(message) ⇒ Object

Passes if the given inbound email would be routed to the subject inbox.

Parameters:

  • message (Hash, Mail::Message) —

    a mail message or hash of attributes used to build one



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# File 'lib/rspec/rails/matchers/action_mailbox.rb', line 68

def receive_inbound_email(message)
  ActionMailbox::ReceiveInboundEmail.new(message)
end

#send_email(criteria = {}) ⇒ Object

Check email sending with specific parameters.

Examples:

Positive expectation

expect { action }.to send_email

Negative expectations

expect { action }.not_to send_email

More precise expectation with attributes to match

expect { action }.to send_email(to: '[email protected]', subject: 'Confirm email')


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# File 'lib/rspec/rails/matchers/send_email.rb', line 117

def send_email(criteria = {})
  SendEmail.new(criteria)
end