Refactor prices

#475

spec/requests/admin/billing/prices/update_spec.rb

@@ -0,0 +1,62 @@
+require 'rails_helper'
+
+RSpec.describe 'admin price update', settings: false do
+  before :example do
+    sign_in_to_admin_area
+  end
+
+  it 'updates zone' do
+    price = create(:price)
+    create(:zone, id: 2)
+
+    patch admin_price_path(price), price: attributes_for(:price, zone_id: '2')
+    price.reload
+
+    expect(price.zone_id).to eq(2)
+  end
+
+  it 'updates operation category' do
+    price = create(:price, operation_category: Billing::Price.operation_categories.first)
+
+    patch admin_price_path(price),
+          price: attributes_for(:price, operation_category: Billing::Price.operation_categories.second)
+    price.reload
+
+    expect(price.operation_category).to eq(Billing::Price.operation_categories.second)
+  end
+
+  it 'updates duration' do
+    price = create(:price, duration: '1 year')
+
+    patch admin_price_path(price), price: attributes_for(:price, duration: '2 years')
+    price.reload
+
+    expect(price.duration).to eq('2 years')
+  end
+
+  it 'updates valid_from' do
+    price = create(:price, valid_from: '2010-07-05')
+
+    patch admin_price_path(price), price: attributes_for(:price, valid_from: '2010-07-06')
+    price.reload
+
+    expect(price.valid_from).to eq(Time.zone.parse('06.07.2010'))
+  end
+
+  it 'updates valid_to' do
+    price = create(:price, valid_to: '2010-07-05')
+
+    patch admin_price_path(price), price: attributes_for(:price, valid_to: '2010-07-06')
+    price.reload
+
+    expect(price.valid_to).to eq(Time.zone.parse('06.07.2010'))
+  end
+
+  it 'redirects to :index' do
+    price = create(:price)
+
+    patch admin_price_path(price), price: attributes_for(:price)
+
+    expect(response).to redirect_to admin_prices_url
+  end
+end