- Homepage: https://github.com/rebelidealist/stripe-ruby-mock
- Issues: https://github.com/rebelidealist/stripe-ruby-mock/issues
In your gemfile:
gem 'stripe-ruby-mock', '>= 1.8.7.4'
- No stripe server access required
- Easily test against stripe errors
- Mock and customize stripe webhooks
** WARNING: This library does not cover all Stripe API endpoints. If you need one that's missing, please create an issue for it. **
At its core, this library overrides stripe-ruby's request method to skip all http calls and instead directly return test data. This allows you to write and run tests without the need to actually hit stripe's servers.
You can use stripe-ruby-mock with any ruby testing library. Here's a quick dummy example with RSpec:
require 'stripe_mock'
describe MyApp do
before { StripeMock.start }
after { StripeMock.stop }
it "creates a stripe customer" do
# This doesn't touch stripe's servers nor the internet!
customer = Stripe::Customer.create({
email: 'johnny@appleseed.com',
card: 'void_card_token'
})
expect(customer.email).to eq('johnny@appleseed.com')
end
end
Tired of manually inputting fake credit card numbers to test against errors? Tire no more!
it "mocks a declined card error" do
# Prepares an error for the next create charge request
StripeMock.prepare_card_error(:card_declined)
expect { Stripe::Charge.create }.to raise_error {|e|
expect(e).to be_a Stripe::CardError
expect(e.http_status).to eq(402)
expect(e.code).to eq('card_declined')
}
end
StripeMock.prepare_card_error(:incorrect_number)
StripeMock.prepare_card_error(:invalid_number)
StripeMock.prepare_card_error(:invalid_expiry_month)
StripeMock.prepare_card_error(:invalid_expiry_year)
StripeMock.prepare_card_error(:invalid_cvc)
StripeMock.prepare_card_error(:expired_card)
StripeMock.prepare_card_error(:incorrect_cvc)
StripeMock.prepare_card_error(:card_declined)
StripeMock.prepare_card_error(:missing)
StripeMock.prepare_card_error(:processing_error)
You can see the details of each error in lib/stripe_mock/api/errors.rb
To raise an error on a specific type of request, take a look at the request handlers folder and pass a method name to StripeMock.prepare_error
.
If you wanted to raise an error for creating a new customer, for instance, you would do the following:
it "raises a custom error for specific actions" do
custom_error = StandardError.new("Please knock first.")
StripeMock.prepare_error(custom_error, :new_customer)
expect { Stripe::Charge.create }.to_not raise_error
expect { Stripe::Customer.create }.to raise_error {|e|
expect(e).to be_a StandardError
expect(e.message).to eq("Please knock first.")
}
end
In the above example, :new_customer
is the name of a method from customers.rb.
Sometimes you want your test stripe data to persist for a bit, such as during integration tests running on different processes. In such cases you'll want to start the stripe mock server:
# spec_helper.rb
#
# The mock server will automatically be killed when your tests are done running.
#
require 'thin'
StripeMock.spawn_server
Then, instead of StripeMock.start
, you'll want to use StripeMock.start_client
:
describe MyApp do
before do
@client = StripeMock.start_client
end
after do
StripeMock.stop_client
# Alternatively:
# @client.close!
# -- Or --
# StripeMock.stop_client(:clear_server_data => true)
end
end
This is all essentially the same as using StripeMock.start
, except that the stripe test
data is held in its own server process.
Here are some other neat things you can do with the client:
@client.state #=> 'ready'
@client.get_server_data(:customers) # Also works for :charges, :plans, etc.
@client.clear_server_data
@client.close!
@client.state #=> 'closed'
# NOTE: Shown below are the default options
StripeMock.default_server_pid_path = './stripe-mock-server.pid'
StripeMock.spawn_server(
:pid_path => StripeMock.default_server_pid_path,
:host => '0.0.0.0',
:port => 4999,
:server => :thin
)
StripeMock.kill_server(StripeMock.default_server_pid_path)
If you need the mock server to continue running even after your tests are done, you'll want to use the executable:
$ stripe-mock-server -p 4000
$ stripe-mock-server --help
If your application handles stripe webhooks, you are most likely retrieving the event from stripe and passing the result to a handler. StripeMock helps you by easily mocking that event:
it "mocks a stripe webhook" do
event = StripeMock.mock_webhook_event('customer.created')
customer_object = event.data.object
expect(customer_object.id).to_not be_nil
expect(customer_object.default_card).to_not be_nil
# etc.
end
By default, StripeMock searches in your spec/fixtures/stripe_webhooks/
folder for your own, custom webhooks.
If it finds nothing, it falls back to test events generated through stripe's webhooktester.
For example, you could create a file in spec/fixtures/stripe_webhooks/invoice.created.with-sub.json
, copy/paste the default from the default invoice.created.json, and customize it to your needs.
Then you can use that webook directly in your specs:
it "can use a custom webhook fixture" do
event = StripeMock.mock_webhook_event('invoice.created.with-sub')
# etc.
end
You can alse override values on the fly:
it "can override webhook values" do
# NOTE: given hash values get merged directly into event.data.object
event = StripeMock.mock_webhook_event('customer.created', {
:id => 'cus_my_custom_value',
:email => 'joe@example.com'
})
# Alternatively:
# event.data.object.id = 'cus_my_custom_value'
# event.data.object.email = 'joe@example.com'
expect(event.data.object.id).to eq('cus_my_custom_value')
expect(event.data.object.email).to eq('joe@example.com')
end
You can name events whatever you like in your spec/fixtures/stripe_webhooks/
folder. However, if you try to call a non-standard event that's doesn't exist in that folder, StripeMock will throw an error.
If you wish to use a different fixture path, you can set it yourself:
StripeMock.webhook_fixture_path = './spec/other/folder/'
Sometimes you need to check if your code reads a stripe card correctly. If so, you can specifically assign card data to a generated card token:
it "generates a stripe card token" do
card_token = StripeMock.generate_card_token(last4: "9191", exp_year: 1984)
cus = Stripe::Customer.create(card: card_token)
card = cus.cards.data.first
expect(card.last4).to eq("9191")
expect(card.exp_year).to eq(1984)
end
To enable debug messages:
StripeMock.toggle_debug(true)
This will only last for the session; Once you call StripeMock.stop
or StripeMock.stop_client
,
debug will be toggled off.
If you always want debug to be on (it's quite verbose), you should put this in a before
block.
- Cover all stripe urls/methods
- Throw useful errors that emulate Stripe's requirements
- For example: "You must supply either a card or a customer id" for
Stripe::Charge
- For example: "You must supply either a card or a customer id" for
To run the tests:
$ rspec
Patches are welcome and greatly appreciated! If you're contributing to fix a problem, be sure to write tests that illustrate the problem being fixed. This will help ensure that the problem remains fixed in future updates.
Copyright (c) 2013 Gilbert
See LICENSE.txt for details.