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334# frozen_string_literal: true
require 'rails_helper'
RSpec.describe V1::SubscriptionsController, type: :controller do
describe 'Create subscription' do
let!(:category) { create(:category) }
let(:valid_params) do
{
first_name: 'John',
last_name: 'Doe',
work_email: 'john@example.com',
category_guids: [category.guid]
}
end
context 'with valid parameters' do
it 'creates a new subscription' do
post :create, params: valid_params
expect(response).to have_http_status(:created)
end
it 'creates a subscription for an existing customer without subscriptions' do
customer = create(:customer, work_email: valid_params[:work_email])
expect {
post :create, params: valid_params
}.not_to change(Customer, :count)
expect(response).to have_http_status(:created)
expect(customer.subscriptions.count).to eq(1)
end
it 'creates a subscription for an existing customer when request contains categories the customer is already subscribed to' do
another_category = create(:category)
customer = create(:customer, work_email: valid_params[:work_email])
create(:subscription, customer: customer, category: category)
params_with_both_categories = valid_params.merge(
category_guids: [category.guid, another_category.guid]
)
post :create, params: params_with_both_categories
expect(response).to have_http_status(:created)
expect(customer.subscriptions.count).to eq(2)
expect(customer.subscriptions.pluck(:category_id)).to match_array([category.id, another_category.id])
end
end
context 'with invalid parameters' do
it 'returns bad request when first_name is missing' do
post :create, params: valid_params.except(:first_name)
expect(response).to have_http_status(:bad_request)
end
it 'returns bad request when last_name is missing' do
post :create, params: valid_params.except(:last_name)
expect(response).to have_http_status(:bad_request)
end
it 'returns bad request when work_email is missing' do
post :create, params: valid_params.except(:work_email)
expect(response).to have_http_status(:bad_request)
end
it 'returns bad request when category_guids is empty' do
post :create, params: valid_params.merge(category_guids: [])
expect(response).to have_http_status(:bad_request)
end
it 'returns bad request when work_email is invalid' do
post :create, params: valid_params.merge(work_email: 'not-an-email')
expect(response).to have_http_status(:bad_request)
json_response = JSON.parse(response.body)
expect(json_response['error']).to eq('work_email must be a valid email address')
end
end
end
describe 'Get subscriptions' do
let!(:category1) { create(:category) }
let!(:category2) { create(:category) }
let!(:customer) { create(:customer) }
context 'when no query parameters exist in the request' do
before do
15.times do |i|
create(:subscription,
customer: create(:customer),
category: i.even? ? category1 : category2
)
end
end
it 'returns paginated results with default limit' do
# Get records of first page
get :index
expect(response).to have_http_status(:ok)
first_page = JSON.parse(response.body)
expect(first_page['subscriptions'].length).to eq(10) # Default limit
expect(first_page['has_more']).to be_truthy
expect(first_page['previous_cursor']).to be_present
expect(first_page['next_cursor']).to be_present
# Get records of second page
get :index, params: { pagination_id: first_page['next_cursor'] }
expect(response).to have_http_status(:ok)
second_page = JSON.parse(response.body)
expect(second_page['subscriptions'].length).to eq(5)
expect(second_page['subscriptions']).not_to eq(first_page['subscriptions'])
expect(second_page['next_cursor']).to be_present
expect(second_page['has_more']).to be_falsey
expect(second_page['previous_cursor']).to be_present
[first_page, second_page].each do |page|
page['subscriptions'].each do |subscription|
expect(subscription).to include(
'work_email',
'first_name',
'last_name',
'category_name'
)
end
end
end
end
context 'when invalid query parameters exist in the request' do
it 'validates pagination_id is numeric' do
get :index, params: { pagination_id: 'abc' }
expect(response).to have_http_status(:bad_request)
json_response = JSON.parse(response.body)
expect(json_response['error']).to eq('pagination_id must be numeric')
end
it 'validates limit is numeric' do
get :index, params: { limit: 'abc' }
expect(response).to have_http_status(:bad_request)
json_response = JSON.parse(response.body)
expect(json_response['error']).to eq('limit must be numeric')
end
it 'validates category_guids is not an empty string' do
get :index, params: { category_guids: '' }
expect(response).to have_http_status(:bad_request)
json_response = JSON.parse(response.body)
expect(json_response['error']).to eq('category_guids must be a list of non-empty strings')
end
it 'validates that pagination_direction is either forward or backward' do
get :index, params: { pagination_direction: 'abc' }
expect(response).to have_http_status(:bad_request)
json_response = JSON.parse(response.body)
expect(json_response['error']).to eq('pagination_direction must either be forward or backward')
end
end
context 'when valid query parameters exist in the request' do
before do
15.times do |i|
create(:subscription,
customer: create(:customer),
category: i.even? ? category1 : category2
)
end
end
it 'returns all subscriptions when only limit exists in the query parameters and limit is greater than total records' do
get :index, params: { limit: 20 }
expect(response).to have_http_status(:ok)
result = JSON.parse(response.body)
expect(result['subscriptions'].length).to eq(15)
expect(result['next_cursor']).to be_present
expect(result['previous_cursor']).to be_present
expect(result['has_more']).to be_falsey
result['subscriptions'].each do |subscription|
expect(subscription).to include(
'work_email',
'first_name',
'last_name',
'category_name'
)
end
end
it 'returns paginated results when limit and one category_guid exist in the query parameters' do
# Get records of first page
get :index, params: { limit: 5, category_guids: category1.guid }
expect(response).to have_http_status(:ok)
first_page = JSON.parse(response.body)
expect(first_page['subscriptions'].length).to eq(5)
expect(first_page['next_cursor']).to be_present
expect(first_page['previous_cursor']).to be_present
expect(first_page['has_more']).to be_truthy
# Get records of second page
get :index, params: { limit: 5, category_guids: category1.guid, pagination_id: first_page['next_cursor'] }
expect(response).to have_http_status(:ok)
second_page = JSON.parse(response.body)
expect(second_page['subscriptions'].length).to eq(3)
expect(second_page['subscriptions']).not_to eq(first_page['subscriptions'])
expect(second_page['next_cursor']).to be_present
expect(second_page['previous_cursor']).to be_present
expect(second_page['has_more']).to be_falsey
[first_page, second_page].each do |page|
page['subscriptions'].each do |subscription|
expect(subscription).to include(
'work_email',
'first_name',
'last_name',
'category_name'
)
end
end
end
it 'returns subscriptions when limit and multiple category_guid exist in the query parameters' do
category3 = create(:category)
create(:subscription, customer: customer, category: category3)
get :index, params: {
category_guid: [category1.guid, category2.guid, category3.guid],
limit: 20
}
expect(response).to have_http_status(:ok)
result = JSON.parse(response.body)
expect(result['subscriptions'].length).to eq(16)
expect(result['next_cursor']).to be_present
expect(result['previous_cursor']).to be_present
expect(result['has_more']).to be_falsey
result['subscriptions'].each do |subscription|
expect(subscription).to include(
'work_email',
'first_name',
'last_name',
'category_name'
)
end
end
it 'returns paginated results when only category_guid exists in the query parameters' do
get :index, params: { category_guids: category1.guid }
expect(response).to have_http_status(:ok)
result = JSON.parse(response.body)
expect(result['subscriptions'].length).to eq(8)
expect(result['next_cursor']).to be_present
expect(result['previous_cursor']).to be_present
expect(result['has_more']).to be_falsey
result['subscriptions'].each do |subscription|
expect(subscription).to include(
'work_email',
'first_name',
'last_name',
'category_name'
)
end
end
it 'returns paginated results when there are multiple limit parameters in the query string' do
get :index, params: { limit: 5 }, params: { limit: 3 }
expect(response).to have_http_status(:ok)
result = JSON.parse(response.body)
expect(result['subscriptions'].length).to eq(3)
end
it 'returns paginated results when there are multiple pagination_id parameters in the query string' do
first_subscription = create(:subscription, customer: customer, category: category1)
second_subscription = create(:subscription, customer: customer, category: category2)
third_subscription = create(:subscription, customer: customer, category: create(:category))
get :index, params: { pagination_id: first_subscription.id, pagination_id: second_subscription.id }
expect(response).to have_http_status(:ok)
result = JSON.parse(response.body)
expect(result['subscriptions'].length).to eq(1)
expect(result['subscriptions'].first['work_email']).to eq(third_subscription.customer.work_email)
expect(result['next_cursor']).to eq(third_subscription.id)
expect(result['previous_cursor']).to eq(third_subscription.id)
expect(result['has_more']).to be_falsey
end
end
context 'when paginating' do
it 'should be able to paginate in both directions' do
subscription_one = create(:subscription, customer: create(:customer), category: category1)
subscription_two = create(:subscription, customer: create(:customer), category: category1)
subscription_three = create(:subscription, customer: create(:customer), category: category1)
subscription_four = create(:subscription, customer: create(:customer), category: category1)
subscription_five = create(:subscription, customer: create(:customer), category: category1)
subscription_six = create(:subscription, customer: create(:customer), category: category1)
# Forward pagination
get :index, params: { limit: 3 }
expect(response).to have_http_status(:ok)
result = JSON.parse(response.body)
expect(result['subscriptions'].length).to eq(3)
expect(result['previous_cursor']).to eq(subscription_one.id)
expect(result['next_cursor']).to eq(subscription_three.id)
expect(result['has_more']).to be_truthy
# Forward pagination
get :index, params: { limit: 3, pagination_id: result['next_cursor'] }
expect(response).to have_http_status(:ok)
result_two = JSON.parse(response.body)
expect(result_two['subscriptions'].length).to eq(3)
expect(result_two['previous_cursor']).to eq(subscription_four.id)
expect(result_two['next_cursor']).to eq(subscription_six.id)
expect(result_two['has_more']).to be_falsey
# Backward pagination
get :index, params: { limit: 3, pagination_id: result_two['previous_cursor'], pagination_direction: 'backward' }
expect(response).to have_http_status(:ok)
result_three = JSON.parse(response.body)
expect(result_three['subscriptions'].length).to eq(3)
expect(result_three['previous_cursor']).to eq(subscription_one.id)
expect(result_three['next_cursor']).to eq(subscription_three.id)
expect(result_three['has_more']).to be_falsey
end
end
end
end