feat: add scheme csv service spec

spec/fixtures/files/locations_csv_export.csv

@@ -0,0 +1,2 @@
+scheme_code,location_code,location_postcode,location_name,location_status,location_local_authority,location_units,location_type_of_unit,location_mobility_type,location_admin_district,location_active_dates
+,,SW1A 2AA,Downing Street,active,E09000033,20,Self-contained house,Fitted with equipment and adaptations,Westminster,Active from 1 April 2022

spec/fixtures/files/schemes_and_locations_csv_export.csv

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+scheme_code,scheme_service_name,scheme_status,scheme_sensitive,scheme_type,scheme_registered_under_care_act,scheme_owning_organisation_name,scheme_support_services_provided_by,scheme_primary_client_group,scheme_has_other_client_group,scheme_secondary_client_group,scheme_support_type,scheme_intended_stay,scheme_created_at,scheme_active_dates,location_code,location_postcode,location_name,location_status,location_local_authority,location_units,location_type_of_unit,location_mobility_type,location_admin_district,location_active_dates
+,Test name,active,Yes,Housing for older people,No,DLUHC,The same organisation that owns the housing stock,People with alcohol problems,Yes,Older people with support needs,High level,Medium stay,2021-04-01T00:00:00+01:00,Active from 1 April 2020,,SW1A 2AA,Downing Street,active,E09000033,20,Self-contained house,Fitted with equipment and adaptations,Westminster,Active from 1 April 2022

spec/fixtures/files/schemes_csv_export.csv

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+scheme_code,scheme_service_name,scheme_status,scheme_sensitive,scheme_type,scheme_registered_under_care_act,scheme_owning_organisation_name,scheme_support_services_provided_by,scheme_primary_client_group,scheme_has_other_client_group,scheme_secondary_client_group,scheme_support_type,scheme_intended_stay,scheme_created_at,scheme_active_dates
+,Test name,active,Yes,Housing for older people,No,DLUHC,The same organisation that owns the housing stock,People with alcohol problems,Yes,Older people with support needs,High level,Medium stay,2021-04-01T00:00:00+01:00,Active from 1 April 2020

spec/services/csv/scheme_csv_service_spec.rb

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+require "rails_helper"
+
+RSpec.describe Csv::SchemeCsvService do
+  let(:organisation) { create(:organisation) }
+  let(:fixed_time) { Time.zone.local(2023, 6, 26) }
+  let(:scheme) { create(:scheme, :export, owning_organisation: organisation, service_name: "Test name") }
+  let(:service) { described_class.new(download_type:) }
+  let(:download_type) { "combined" }
+  let(:csv) { CSV.parse(service.prepare_csv(Scheme.where(id: schemes.map(&:id)))) }
+  let(:schemes) { [scheme] }
+  let(:headers) { csv.first }
+
+  before do
+    Timecop.freeze(fixed_time)
+    create(:location, :export, scheme:)
+  end
+
+  after do
+    Timecop.return
+  end
+
+  it "returns a string" do
+    result = service.prepare_csv(Scheme.all)
+    expect(result).to be_a String
+  end
+
+  it "returns a csv with headers" do
+    expect(csv.first.first).to eq "scheme_code"
+  end
+
+  it "returns the correctly formatted scheme code" do
+    expect(csv.second.first.first).to eq "S"
+  end
+
+  context "when download type is schemes" do
+    let(:download_type) { "schemes" }
+    let(:scheme_attributes) { %w[scheme_code scheme_service_name scheme_status scheme_sensitive scheme_type scheme_registered_under_care_act scheme_owning_organisation_name scheme_support_services_provided_by scheme_primary_client_group scheme_has_other_client_group scheme_secondary_client_group scheme_support_type scheme_intended_stay scheme_created_at scheme_active_dates] }
+
+    it "has the correct headers" do
+      expect(headers).to eq(scheme_attributes)
+    end
+
+    it "exports the CSV with all values correct" do
+      expected_content = CSV.read("spec/fixtures/files/schemes_csv_export.csv")
+      values_to_delete = %w[scheme_code]
+      values_to_delete.each do |attribute|
+        index = csv.first.index(attribute)
+        csv.second[index] = nil
+      end
+      expect(csv).to eq expected_content
+    end
+
+    context "when there are many schemes and locations" do
+      let(:schemes) { create_list(:scheme, scheme_count) }
+      let(:scheme_count) { 5 }
+      let(:locations_per_scheme) { 2 }
+
+      before do
+        schemes.each do |scheme|
+          create_list(:location, locations_per_scheme, scheme:)
+        end
+      end
+
+      it "creates a CSV with the correct number of schemes" do
+        expected_row_count_with_headers = scheme_count + 1
+        expect(csv.size).to be expected_row_count_with_headers
+      end
+    end
+  end
+
+  context "when download type is locations" do
+    let(:download_type) { "locations" }
+    let(:location_attributes) { %w[scheme_code location_code location_postcode location_name location_status location_local_authority location_units location_type_of_unit location_mobility_type location_admin_district location_active_dates] }
+
+
+    it "has the correct headers" do
+      expect(headers).to eq(location_attributes)
+    end
+
+    it "exports the CSV with all values correct" do
+      expected_content = CSV.read("spec/fixtures/files/locations_csv_export.csv")
+      values_to_delete = %w[scheme_code location_code]
+      values_to_delete.each do |attribute|
+        index = csv.first.index(attribute)
+        csv.second[index] = nil
+      end
+      expect(csv).to eq expected_content
+    end
+
+    context "when there are many schemes and locations" do
+      let(:schemes) { create_list(:scheme, scheme_count) }
+      let(:scheme_count) { 5 }
+      let(:locations_per_scheme) { 2 }
+
+      before do
+        schemes.each do |scheme|
+          create_list(:location, locations_per_scheme, scheme:)
+        end
+      end
+
+      it "creates a CSV with the correct number of locations" do
+        expected_row_count_with_headers = locations_per_scheme * scheme_count + 1
+        expect(csv.size).to be expected_row_count_with_headers
+      end
+    end
+  end
+
+  context "when download type is combined" do
+    let(:combined_attributes) { %w[scheme_code scheme_service_name scheme_status scheme_sensitive scheme_type scheme_registered_under_care_act scheme_owning_organisation_name scheme_support_services_provided_by scheme_primary_client_group scheme_has_other_client_group scheme_secondary_client_group scheme_support_type scheme_intended_stay scheme_created_at scheme_active_dates location_code location_postcode location_name location_status location_local_authority location_units location_type_of_unit location_mobility_type location_admin_district location_active_dates] }
+
+    it "has the correct headers" do
+      expect(headers).to eq(combined_attributes)
+    end
+
+    it "exports the CSV with all values correct" do
+      expected_content = CSV.read("spec/fixtures/files/schemes_and_locations_csv_export.csv")
+      values_to_delete = %w[scheme_code location_code]
+      values_to_delete.each do |attribute|
+        index = csv.first.index(attribute)
+        csv.second[index] = nil
+      end
+      expect(csv).to eq expected_content
+    end
+
+    context "when there are many schemes and locations" do
+      let(:schemes) { create_list(:scheme, scheme_count) }
+      let(:scheme_count) { 5 }
+      let(:locations_per_scheme) { 2 }
+
+      before do
+        schemes.each do |scheme|
+          create_list(:location, locations_per_scheme, scheme:)
+        end
+      end
+
+      it "creates a CSV with the correct number of locations" do
+        expected_row_count_with_headers = locations_per_scheme * scheme_count + 1
+        expect(csv.size).to be expected_row_count_with_headers
+      end
+    end
+  end
+end