CST-2558: newly registered participants with induction start date in …

…payments-frozen cohort are now placed in the cohort currently open for registration

app/forms/schools/add_participants/base_wizard.rb

@@ -467,7 +467,7 @@ def cohort_to_place_participant
         if transfer?
           existing_participant_cohort || existing_participant_profile&.schedule&.cohort
         elsif ect_participant? && induction_start_date.present?
-          Cohort.containing_date(induction_start_date).tap do |cohort|
+          Cohort.for_induction_start_date(induction_start_date).tap do |cohort|
             return Cohort.current if cohort.blank? || cohort.npq_plus_one_or_earlier?
           end
         elsif Cohort.within_automatic_assignment_period?

app/models/cohort.rb

@@ -43,10 +43,12 @@ def self.next
   #   - Cohort.current for dates ealier than Sept 2021 or
   #   - The previous date's year cohort if the date is before Jun or
   #   - the cohort starting the date's year otherwise.
+  # If the cohort calculated is payments-frozen, the currently active for registration is returned instead.
   def self.for_induction_start_date(date)
-    return current if date < Date.new(2021, 9, 1)
+    cohort = current if date < Date.new(2021, 9, 1)
+    cohort ||= Cohort.find_by_start_year(date.month < 6 ? date.year - 1 : date.year)
 
-    Cohort.find_by_start_year(date.month < 6 ? date.year - 1 : date.year)
+    cohort&.payments_frozen? ? active_registration_cohort : cohort
   end
 
   def self.previous

spec/models/cohort_spec.rb

@@ -3,7 +3,7 @@
 require "rails_helper"
 
 RSpec.describe Cohort, type: :model do
-  let!(:cohort_2024) { FactoryBot.create :seed_cohort, start_year: 2024 }
+  let!(:cohort_2024) { Cohort.find_by_start_year(2024) }
 
   describe "associations" do
     it { is_expected.to have_many(:call_off_contracts) }
@@ -58,10 +58,14 @@
   describe ".for_induction_start_date" do
     subject { Cohort.for_induction_start_date(induction_start_date) }
 
-    context "when the provided date is earlier than 2021" do
-      let(:induction_start_date) { Date.new(2020, 5, 1) }
+    context "when the cohort calculated has been frozen for payments" do
+      let(:induction_start_date) { Date.new(2022, 7, 1) }
 
-      it { is_expected.to eq(Cohort.current) }
+      before do
+        Cohort.find_by_start_year(2022).update!(payments_frozen_at: Time.current)
+      end
+
+      it { is_expected.to eq(Cohort.active_registration_cohort) }
     end
 
     context "when the provided date is in 2021 before September" do