feat: Add bulk imports API for contacts (#1724)

spec/jobs/data_import_job_spec.rb

@@ -0,0 +1,24 @@
+require 'rails_helper'
+
+RSpec.describe DataImportJob, type: :job do
+  subject(:job) { described_class.perform_later(data_import) }
+
+  let!(:data_import) { create(:data_import) }
+
+  it 'queues the job' do
+    expect { job }.to have_enqueued_job(described_class)
+      .with(data_import)
+      .on_queue('low')
+  end
+
+  it 'imports data into the account' do
+    csv_length = CSV.parse(data_import.import_file.download, headers: true).length
+    described_class.perform_now(data_import)
+    expect(data_import.account.contacts.count).to eq(csv_length)
+    expect(data_import.reload.total_records).to eq(csv_length)
+    expect(data_import.reload.processed_records).to eq(csv_length)
+
+    # should generate pubsub tokens for contacts
+    expect(data_import.account.contacts.last.pubsub_token).present?
+  end
+end