Added additional tests to REPP API

test/integration/repp/v1/invoices/cancel_test.rb

@@ -0,0 +1,44 @@
+require 'test_helper'
+
+class ReppV1InvoicesCancelTest < ActionDispatch::IntegrationTest
+  def setup
+    @user = users(:api_bestnames)
+    token = Base64.encode64("#{@user.username}:#{@user.plain_text_password}")
+    token = "Basic #{token}"
+
+    @auth_headers = { 'Authorization' => token }
+  end
+
+  def test_cancels_invoice
+    invoice = invoices(:one)
+    invoice.account_activity = nil
+    assert invoice.cancellable?
+    stub_request(:post, 'https://eis_billing_system:3000/api/v1/invoice_generator/invoice_status')
+      .to_return(status: :ok, headers: {})
+
+    put "/repp/v1/invoices/#{invoice.id}/cancel", headers: @auth_headers
+    json = JSON.parse(response.body, symbolize_names: true)
+
+    assert_response :ok
+    assert_equal 1000, json[:code]
+    assert_equal 'Command completed successfully', json[:message]
+
+    invoice.reload
+    assert invoice.cancelled?
+    assert json[:data][:invoice].is_a? Hash
+  end
+
+  def test_cancels_uncancellable_invoice
+    invoice = invoices(:one)
+    assert_not invoice.cancellable?
+
+    put "/repp/v1/invoices/#{invoice.id}/cancel", headers: @auth_headers
+    json = JSON.parse(response.body, symbolize_names: true)
+
+    assert_response :bad_request
+    assert_equal 'Invoice status prohibits operation', json[:message]
+
+    invoice.reload
+    assert_not invoice.cancelled?
+  end
+end