(feature) SupplierImport accepts CSV data and imports it

Calling `SupplierImport.new(csv).run!` iterates over the supplied CSV
data and calls `SupplierImportRow` on each row.

Author: leeky

lib/supplier_import.rb

@@ -1,2 +1,14 @@
+require 'csv'
+require 'supplier_import_row'
+
 class SupplierImport
+  def initialize(csv_data)
+    @rows = CSV.parse(csv_data, headers: true, header_converters: :symbol)
+  end
+
+  def run!
+    @rows.each do |row|
+      SupplierImportRow.new(row.to_h).import!
+    end
+  end
 end

spec/lib/supplier_import_spec.rb

@@ -1,9 +1,32 @@
 require 'rails_helper'
-require 'supplier_import'
+require './lib/supplier_import'
+require './lib/supplier_import_row'
 
 RSpec.describe SupplierImport do
   describe '#initialize' do
     it 'accepts CSV data as a string input' do
+      csv = "frameworkreference,suppliername\nRM1234,Cheese & Crackers LLP\nRM5678,Vaughan Legal\n"
+
+      expect { SupplierImport.new(csv) }.to_not raise_error
+    end
+  end
+
+  describe '#run!' do
+    it 'creates supplier records for the suppliers listed in the CSV data' do
+      rm1234 = FactoryBot.create(:framework, short_name: 'RM1234')
+      rm5678 = FactoryBot.create(:framework, short_name: 'RM5678')
+
+      csv = "frameworkreference,suppliername\nRM1234,Cheese & Crackers LLP\nRM5678,Vaughan Legal\n"
+
+      SupplierImport.new(csv).run!
+
+      created_suppliers = Supplier.order(:name).all
+
+      expect(created_suppliers[0].name).to eql 'Cheese & Crackers LLP'
+      expect(created_suppliers[0].frameworks).to contain_exactly(rm1234)
+
+      expect(created_suppliers[1].name).to eql 'Vaughan Legal'
+      expect(created_suppliers[1].frameworks).to contain_exactly(rm5678)
     end
   end
 end