Add unit test for aus pay net api client

Gemfile

@@ -11,3 +11,4 @@ gem 'minitest-stub-const'
 gem 'net-ftp', '~> 0.1.3'
 gem 'rake', '~> 13.0'
 gem 'rubocop'
+gem 'vcr'

lib/bsb/database_generator.rb

@@ -2,7 +2,6 @@
 
 require 'bsb/base_generator'
 require 'bsb/aus_pay_net/client'
-require 'faraday'
 
 module BSB
   class DatabaseGenerator < BaseGenerator

test/bsb/aus_pay_net/client_test.rb

@@ -0,0 +1,19 @@
+# frozen_string_literal: true
+
+require 'bsb/aus_pay_net/client'
+require 'test_helper'
+
+describe BSB::AusPayNet::Client do
+  describe '.fetch_all_bsbs' do
+    before { ENV['AUSPAYNET_SUB_KEY'] = 'something' }
+
+    it 'returns the expected response' do
+      VCR.use_cassette('auspaynet_fetch_all_bsbs') do
+        response = BSB::AusPayNet::Client.fetch_all_bsbs
+        assert_equal(response.class, BSB::AusPayNet::Client::Response)
+        assert_equal(response.body.class, String)
+        assert_equal(JSON.parse(response.body).count, 2)
+      end
+    end
+  end
+end

test/test_helper.rb

@@ -3,11 +3,20 @@
 require 'bsb'
 require 'minitest/autorun'
 require 'minitest/stub_const'
+require 'vcr'
 
 Minitest.after_run do
   Dir.glob('test/tmp/**/*.json').each { File.delete(_1) }
 end
 
+VCR.configure do |config|
+  config.cassette_library_dir = 'test/fixtures/vcr_cassettes'
+  config.hook_into :faraday
+  config.filter_sensitive_data('<AUSPAYNET_SUB_KEY>') do |interaction|
+    interaction.request.headers['Ocp-apim-subscription-key'][0]
+  end
+end
+
 class Account
   include ActiveModel::API