Merge pull request #11127 from tchak/fix-champ-validation

fix(champ): always check if a champ is in dossier revision before validate

app/controllers/champs/piece_justificative_controller.rb

@@ -27,7 +27,8 @@ class Champs::PieceJustificativeController < Champs::ChampController
 
     ActiveStorage::Attachment.transaction do
       @champ.piece_justificative_file.attach(params[:blob_signed_id])
-      save_succeed = @champ.save
+      context = @champ.public? ? :champs_public_value : :champs_private_value
+      save_succeed = @champ.save(context:)
     end
 
     if save_succeed && dossier.brouillon?

app/models/champ.rb

@@ -89,7 +89,8 @@ class Champ < ApplicationRecord
   end
 
   def blank?
-    type_de_champ.champ_blank?(self)
+    # FIXME: temporary fix to avoid breaking validation
+    in_dossier_revision? ? type_de_champ.champ_blank?(self) : value.blank?
   end
 
   def used_by_routing_rules?

app/models/champs/boolean_champ.rb

@@ -7,7 +7,7 @@ class Champs::BooleanChamp < Champ
   before_validation :set_value_to_nil, if: -> { value.blank? }
   before_validation :set_value_to_false, unless: -> { ([nil, TRUE_VALUE, FALSE_VALUE]).include?(value) }
 
-  validates :value, inclusion: [TRUE_VALUE, FALSE_VALUE], allow_nil: true, allow_blank: false, if: :validate_champ_value_or_prefill?
+  validates :value, inclusion: [TRUE_VALUE, FALSE_VALUE], allow_nil: true, allow_blank: false, if: :validate_champ_value?
 
   def true?
     value == TRUE_VALUE

app/models/champs/civilite_champ.rb

@@ -1,7 +1,7 @@
 # frozen_string_literal: true
 
 class Champs::CiviliteChamp < Champ
-  validates :value, inclusion: ["M.", "Mme"], allow_nil: true, allow_blank: false, if: :validate_champ_value_or_prefill?
+  validates :value, inclusion: ["M.", "Mme"], allow_nil: true, allow_blank: false, if: :validate_champ_value?
 
   def legend_label?
     true

app/models/champs/cnaf_champ.rb

@@ -3,8 +3,8 @@
 class Champs::CnafChamp < Champs::TextChamp
   # see https://github.com/betagouv/api-particulier/blob/master/src/presentation/middlewares/cnaf-input-validation.middleware.ts
 
-  validates :numero_allocataire, format: { with: /\A\d{1,7}\z/ }, if: -> { code_postal.present? && validate_champ_value_or_prefill? }
+  validates :numero_allocataire, format: { with: /\A\d{1,7}\z/ }, if: -> { code_postal.present? && validate_champ_value? }
-  validates :code_postal, format: { with: /\A\w{5}\z/ }, if: -> { numero_allocataire.present? && validate_champ_value_or_prefill? }
+  validates :code_postal, format: { with: /\A\w{5}\z/ }, if: -> { numero_allocataire.present? && validate_champ_value? }
 
   store_accessor :value_json, :numero_allocataire, :code_postal
 

app/models/champs/commune_champ.rb

@@ -4,7 +4,7 @@ class Champs::CommuneChamp < Champs::TextChamp
   store_accessor :value_json, :code_departement, :code_postal, :code_region
   before_save :on_codes_change, if: :should_refresh_after_code_change?
 
-  validates :external_id, presence: true, if: -> { validate_champ_value_or_prefill? && value.present? }
+  validates :external_id, presence: true, if: -> { value.present? && validate_champ_value? }
   after_validation :instrument_external_id_error, if: -> { errors.include?(:external_id) }
 
   def departement_name

app/models/champs/decimal_number_champ.rb

@@ -17,7 +17,7 @@ class Champs::DecimalNumberChamp < Champ
     message: -> (object, _data) {
       object.errors.generate_message(:value, :not_a_number)
     }
-  }, if: :validate_champ_value_or_prefill?
+  }, if: :validate_champ_value?
 
   private
 

app/models/champs/departement_champ.rb

@@ -3,8 +3,8 @@
 class Champs::DepartementChamp < Champs::TextChamp
   store_accessor :value_json,  :code_region
 
-  validate :value_in_departement_names, if: -> { validate_champ_value_or_prefill? && !value.nil? }
+  validate :value_in_departement_names, if: -> { !value.nil? && validate_champ_value? }
-  validate :external_id_in_departement_codes, if: -> { validate_champ_value_or_prefill? && !external_id.nil? }
+  validate :external_id_in_departement_codes, if: -> { !external_id.nil? && validate_champ_value? }
   before_save :store_code_region
 
   def selected

app/models/champs/dgfip_champ.rb

@@ -2,8 +2,8 @@
 
 class Champs::DgfipChamp < Champs::TextChamp
   # see https://github.com/betagouv/api-particulier/blob/master/src/presentation/middlewares/dgfip-input-validation.middleware.ts
-  validates :numero_fiscal, format: { with: /\A\w{13,14}\z/ }, if: -> { reference_avis.present? && validate_champ_value_or_prefill? }
+  validates :numero_fiscal, format: { with: /\A\w{13,14}\z/ }, if: -> { validate_champ_value? && reference_avis.present? }
-  validates :reference_avis, format: { with: /\A\w{13,14}\z/ }, if: -> { numero_fiscal.present? && validate_champ_value_or_prefill? }
+  validates :reference_avis, format: { with: /\A\w{13,14}\z/ }, if: -> { validate_champ_value? && numero_fiscal.present? }
 
   store_accessor :value_json, :numero_fiscal, :reference_avis
 

app/models/champs/drop_down_list_champ.rb

@@ -6,7 +6,7 @@ class Champs::DropDownListChamp < Champ
   THRESHOLD_NB_OPTIONS_AS_AUTOCOMPLETE = 20
   OTHER = '__other__'
   delegate :options_without_empty_value_when_mandatory, to: :type_de_champ
-  validate :value_is_in_options, if: -> { !(value.blank? || drop_down_other?) && validate_champ_value_or_prefill? }
+  validate :value_is_in_options, if: -> { validate_champ_value? && !(value.blank? || drop_down_other?) }
 
   def render_as_radios?
     drop_down_options.size <= THRESHOLD_NB_OPTIONS_AS_RADIO

app/models/champs/email_champ.rb

@@ -4,5 +4,5 @@ class Champs::EmailChamp < Champs::TextChamp
   include EmailSanitizableConcern
   before_validation -> { sanitize_email(:value) }
 
-  validates :value, allow_blank: true, format: { with: StrictEmailValidator::REGEXP }, if: :validate_champ_value_or_prefill?
+  validates :value, allow_blank: true, format: { with: StrictEmailValidator::REGEXP }, if: :validate_champ_value?
 end

app/models/champs/engagement_juridique_champ.rb

@@ -5,5 +5,5 @@ class Champs::EngagementJuridiqueChamp < Champ
   validates_with ExpressionReguliereValidator,
                 expression_reguliere: /([A-Z]|[0-9]|\-|\_|\+|\/)+/,
                 expression_reguliere_error_message: "Le numéro d'EJ ne peut contenir que des caractères alphanumérique et les caractères spéciaux suivant : “-“ ; “_“ ; “+“ ; “/“",
-                if: :validate_champ_value_or_prefill?
+                if: :validate_champ_value?
 end

app/models/champs/epci_champ.rb

@@ -5,9 +5,9 @@ class Champs::EpciChamp < Champs::TextChamp
   before_validation :on_departement_change
   before_validation :on_epci_name_changes
 
-  validate :code_departement_in_departement_codes, if: -> { !(code_departement.nil?) && validate_champ_value_or_prefill? }
+  validate :code_departement_in_departement_codes, if: -> { !(code_departement.nil?) && validate_champ_value? }
-  validate :external_id_in_departement_epci_codes, if: -> { !(code_departement.nil? || external_id.nil?) && validate_champ_value_or_prefill? }
+  validate :external_id_in_departement_epci_codes, if: -> { !(code_departement.nil? || external_id.nil?) && validate_champ_value? }
-  validate :value_in_departement_epci_names, if: -> { !(code_departement.nil? || external_id.nil? || value.nil?) && validate_champ_value_or_prefill? }
+  validate :value_in_departement_epci_names, if: -> { !(code_departement.nil? || external_id.nil? || value.nil?) && validate_champ_value? }
 
   def departement_name
     APIGeoService.departement_name(code_departement)

app/models/champs/expression_reguliere_champ.rb

@@ -1,5 +1,5 @@
 # frozen_string_literal: true
 
 class Champs::ExpressionReguliereChamp < Champ
-  validates_with ExpressionReguliereValidator, if: :validate_champ_value_or_prefill?
+  validates_with ExpressionReguliereValidator, if: :validate_champ_value?
 end

app/models/champs/iban_champ.rb

@@ -1,7 +1,7 @@
 # frozen_string_literal: true
 
 class Champs::IbanChamp < Champ
-  validates_with IbanValidator, if: :validate_champ_value_or_prefill?
+  validates_with IbanValidator, if: :validate_champ_value?
   after_validation :format_iban
 
   private

app/models/champs/integer_number_champ.rb

@@ -11,7 +11,7 @@ class Champs::IntegerNumberChamp < Champ
       # i18n-tasks-use t('errors.messages.not_an_integer')
       object.errors.generate_message(:value, :not_an_integer)
     }
-  }, if: :validate_champ_value_or_prefill?
+  }, if: :validate_champ_value?
 
   def format_value
     return if value.blank?

app/models/champs/multiple_drop_down_list_champ.rb

@@ -1,7 +1,7 @@
 # frozen_string_literal: true
 
 class Champs::MultipleDropDownListChamp < Champ
-  validate :values_are_in_options, if: -> { value.present? && validate_champ_value_or_prefill? }
+  validate :values_are_in_options, if: -> { value.present? && validate_champ_value? }
 
   THRESHOLD_NB_OPTIONS_AS_CHECKBOX = 5
 

app/models/champs/phone_champ.rb

@@ -7,5 +7,5 @@ class Champs::PhoneChamp < Champs::TextChamp
       allow_blank: true,
       message: I18n.t(:not_a_phone, scope: 'activerecord.errors.messages')
     },
-    if: -> { !Phonelib.valid_for_countries?(value, TypesDeChamp::PhoneTypeDeChamp::DEFAULT_COUNTRY_CODES) && validate_champ_value_or_prefill? }
+    if: -> { validate_champ_value? && !Phonelib.valid_for_countries?(value, TypesDeChamp::PhoneTypeDeChamp::DEFAULT_COUNTRY_CODES) }
 end

app/models/champs/piece_justificative_champ.rb

@@ -5,14 +5,13 @@ class Champs::PieceJustificativeChamp < Champ
 
   has_many_attached :piece_justificative_file
 
-  # TODO: if: -> { validate_champ_value? || validation_context == :prefill }
   validates :piece_justificative_file,
     size: { less_than: FILE_MAX_SIZE },
-    if: -> { !type_de_champ.skip_pj_validation }
+    if: -> { can_validate? && !type_de_champ.skip_pj_validation }
 
   validates :piece_justificative_file,
     content_type: AUTHORIZED_CONTENT_TYPES,
-    if: -> { !type_de_champ.skip_content_type_pj_validation }
+    if: -> { can_validate? && !type_de_champ.skip_content_type_pj_validation }
 
   def main_value_name
     :piece_justificative_file

app/models/champs/region_champ.rb

@@ -1,8 +1,8 @@
 # frozen_string_literal: true
 
 class Champs::RegionChamp < Champs::TextChamp
-  validate :value_in_region_names, if: -> { !value.nil? && validate_champ_value_or_prefill? }
+  validate :value_in_region_names, if: -> { !value.nil? && validate_champ_value? }
-  validate :external_id_in_region_codes, if: -> { !external_id.nil? && validate_champ_value_or_prefill? }
+  validate :external_id_in_region_codes, if: -> { !external_id.nil? && validate_champ_value? }
 
   def selected
     code

app/models/champs/rna_champ.rb

@@ -5,7 +5,7 @@ class Champs::RNAChamp < Champ
 
   validates :value, allow_blank: true, format: {
     with: /\AW[0-9A-Z]{9}\z/, message: I18n.t(:not_a_rna, scope: 'activerecord.errors.messages')
-  }, if: :validate_champ_value_or_prefill?
+  }, if: :validate_champ_value?
 
   delegate :id, to: :procedure, prefix: true
 

app/models/champs/titre_identite_champ.rb

@@ -6,8 +6,10 @@ class Champs::TitreIdentiteChamp < Champ
 
   has_many_attached :piece_justificative_file
 
-  # TODO: if: -> { validate_champ_value? || validation_context == :prefill }
+  validates :piece_justificative_file,
-  validates :piece_justificative_file, content_type: ACCEPTED_FORMATS, size: { less_than: FILE_MAX_SIZE }
+    content_type: ACCEPTED_FORMATS,
+    size: { less_than: FILE_MAX_SIZE },
+    if: :validate_champ_value?
 
   def main_value_name
     :piece_justificative_file

app/models/concerns/champ_validate_concern.rb

@@ -19,6 +19,8 @@ module ChampValidateConcern
         public? && can_validate? && visible?
       when :champs_private_value
         private? && can_validate? && visible?
+      when :prefill
+        true
       else
         false
       end
@@ -27,9 +29,5 @@ module ChampValidateConcern
     def can_validate?
       in_dossier_revision? && is_same_type_as_revision? && !row? && !in_discarded_row?
     end
-
-    def validate_champ_value_or_prefill?
-      validate_champ_value? || validation_context == :prefill
-    end
   end
 end

spec/factories/dossier.rb

@@ -295,7 +295,7 @@ def dossier_factory_create_champ_or_repetition(type_de_champ, dossier)
     types_de_champ = dossier.revision.children_of(type_de_champ)
     2.times do
       row_id = ULID.generate
-      type_de_champ.build_champ(dossier:, row_id:).save!
+      dossier.champs << type_de_champ.build_champ(row_id:)
       types_de_champ.each do |type_de_champ|
         dossier_factory_create_champ(type_de_champ, dossier, row_id:)
       end
@@ -313,6 +313,6 @@ def dossier_factory_create_champ(type_de_champ, dossier, row_id: nil)
   elsif type_de_champ.multiple_drop_down_list?
     type_de_champ.drop_down_options.first(2).to_json
   end
-  attrs = { stable_id: type_de_champ.stable_id, private: type_de_champ.private?, row_id:, dossier:, value: }.compact
+  attrs = { stable_id: type_de_champ.stable_id, private: type_de_champ.private?, row_id:, value: }.compact
-  create(:"champ_do_not_use_#{type_de_champ.type_champ}", **attrs)
+  dossier.champs << build(:"champ_do_not_use_#{type_de_champ.type_champ}", **attrs)
 end

spec/models/champs/dossier_link_champ_spec.rb

@@ -1,9 +1,18 @@
 # frozen_string_literal: true
 
 describe Champs::DossierLinkChamp, type: :model do
+  let(:champ) { Champs::DossierLinkChamp.new(value:, dossier: build(:dossier)) }
+  let(:mandatory) { false }
+
+  before do
+    allow(champ).to receive(:type_de_champ).and_return(build(:type_de_champ_dossier_link, mandatory:))
+    allow(champ).to receive(:in_dossier_revision?).and_return(true)
+  end
+
   describe 'prefilling validations' do
+    let(:linked_dossier) { create(:dossier) }
     describe 'value' do
-      subject { described_class.new(value:, dossier: build(:dossier)).valid?(:prefill) }
+      subject { champ.valid?(:prefill) }
 
       context 'when nil' do
         let(:value) { nil }
@@ -18,13 +27,13 @@ describe Champs::DossierLinkChamp, type: :model do
       end
 
       context 'when an integer' do
-        let(:value) { 42 }
+        let(:value) { linked_dossier.id }
 
         it { expect(subject).to eq(true) }
       end
 
       context 'when a string representing an integer' do
-        let(:value) { "42" }
+        let(:value) { linked_dossier.id.to_s }
 
         it { expect(subject).to eq(true) }
       end
@@ -38,14 +47,7 @@ describe Champs::DossierLinkChamp, type: :model do
   end
 
   describe 'validation' do
-    let(:champ) { Champs::DossierLinkChamp.new(value:, dossier: build(:dossier)) }
+    before { champ.run_callbacks(:validation) }
-
-    before do
-      allow(champ).to receive(:type_de_champ).and_return(build(:type_de_champ_dossier_link, mandatory:))
-      allow(champ).to receive(:in_dossier_revision?).and_return(true)
-      champ.run_callbacks(:validation)
-    end
-
     subject { champ.validate(:champs_public_value) }
 
     context 'when not mandatory' do

spec/models/champs/epci_champ_spec.rb

@@ -1,15 +1,18 @@
 # frozen_string_literal: true
 
 describe Champs::EpciChamp, type: :model do
+  let(:champ) { Champs::EpciChamp.new(code_departement: code_departement, dossier: build(:dossier)) }
+  let(:code_departement) { nil }
+
+  before do
+    allow(champ).to receive(:visible?).and_return(true)
+    allow(champ).to receive(:can_validate?).and_return(true)
+  end
+
   describe 'validations' do
     subject { champ.validate(:champs_public_value) }
 
     describe 'code_departement' do
-      let(:champ) { Champs::EpciChamp.new(code_departement: code_departement, dossier: build(:dossier)) }
-      before do
-        allow(champ).to receive(:visible?).and_return(true)
-        allow(champ).to receive(:can_validate?).and_return(true)
-      end
       context 'when nil' do
         let(:code_departement) { nil }
 
@@ -156,7 +159,6 @@ describe Champs::EpciChamp, type: :model do
   end
 
   describe 'value' do
-    let(:champ) { described_class.new }
     let(:epci) { APIGeoService.epcis('01').first }
 
     it 'with departement and code' do

spec/models/champs/piece_justificative_champ_spec.rb

@@ -5,10 +5,12 @@ require 'active_storage_validations/matchers'
 describe Champs::PieceJustificativeChamp do
   include ActiveStorageValidations::Matchers
 
+  let(:procedure) { create(:procedure, types_de_champ_public: [{ type: :piece_justificative }]) }
+  let(:dossier) { create(:dossier, :with_populated_champs, procedure:) }
+  let(:champ) { dossier.champs.first }
+
   describe "validations" do
-    let(:champ) { Champs::PieceJustificativeChamp.new }
     subject { champ }
-    before { allow(champ).to receive(:type_de_champ).and_return(build(:type_de_champ_piece_justificative)) }
 
     context "by default" do
       it { is_expected.to validate_size_of(:piece_justificative_file).less_than(Champs::PieceJustificativeChamp::FILE_MAX_SIZE) }
@@ -19,20 +21,17 @@ describe Champs::PieceJustificativeChamp do
     context "when validation is disabled" do
       before { champ.type_de_champ.update(skip_pj_validation: true) }
 
-      it { is_expected.not_to validate_size_of(:piece_justificative_file).less_than(Champs::PieceJustificativeChamp::FILE_MAX_SIZE) }
+      it { is_expected.not_to validate_size_of(:piece_justificative_file).on(:champs_public_value).less_than(Champs::PieceJustificativeChamp::FILE_MAX_SIZE) }
     end
 
     context "when content-type validation is disabled" do
       before { champ.type_de_champ.update(skip_content_type_pj_validation: true) }
 
-      it { is_expected.not_to validate_content_type_of(:piece_justificative_file).rejecting('application/x-ms-dos-executable') }
+      it { is_expected.not_to validate_content_type_of(:piece_justificative_file).on(:champs_public_value).rejecting('application/x-ms-dos-executable') }
     end
   end
 
   describe "#for_export" do
-    let(:procedure) { create(:procedure, types_de_champ_public: [{ type: :piece_justificative }]) }
-    let(:dossier) { create(:dossier, :with_populated_champs, procedure:) }
-    let(:champ) { dossier.champs.first }
     subject { champ.type_de_champ.champ_value_for_export(champ) }
 
     it { is_expected.to eq('toto.txt') }
@@ -44,10 +43,6 @@ describe Champs::PieceJustificativeChamp do
   end
 
   describe '#for_api' do
-    let(:procedure) { create(:procedure, types_de_champ_public: [{ type: :piece_justificative }]) }
-    let(:dossier) { create(:dossier, :with_populated_champs, procedure:) }
-    let(:champ) { dossier.champs.first }
-
     before { champ.piece_justificative_file.first.blob.update(virus_scan_result:) }
 
     subject { champ.type_de_champ.champ_value_for_api(champ, version: 1) }

spec/models/concerns/champ_validate_concern_spec.rb

@@ -51,6 +51,34 @@ RSpec.describe ChampValidateConcern do
         expect(dossier.errors).to be_empty
       }
     end
+
+    context 'attachments' do
+      let(:types_de_champ_public) { [{ type: :piece_justificative }, { type: :titre_identite }] }
+
+      before {
+        dossier.revision.revision_types_de_champ.delete_all
+        dossier.validate(:champs_public_value)
+      }
+      it {
+        expect(dossier.revision.revision_types_de_champ).to be_empty
+        expect(dossier.champs).not_to be_empty
+        expect(dossier.errors).to be_empty
+      }
+    end
+
+    context 'drop_down_list' do
+      let(:types_de_champ_public) { [{ type: :drop_down_list }] }
+
+      before {
+        dossier.revision.revision_types_de_champ.delete_all
+        dossier.validate(:champs_public_value)
+      }
+      it {
+        expect(dossier.revision.revision_types_de_champ).to be_empty
+        expect(dossier.champs).not_to be_empty
+        expect(dossier.errors).to be_empty
+      }
+    end
   end
 
   context 'when type changed' do

spec/models/dossier_spec.rb

@@ -2133,21 +2133,21 @@ describe Dossier, type: :model do
       expect(champ_titre_identite.piece_justificative_file.attached?).to be_truthy
       expect(champ_titre_identite_vide.piece_justificative_file.attached?).to be_falsey
       dossier.accepter!(instructeur: dossier.followers_instructeurs.first, motivation: "yolo!")
-      expect(champ_titre_identite.piece_justificative_file.attached?).to be_falsey
+      expect(Champ.exists?(champ_titre_identite.id)).to be_falsey
     end
 
     it "clean up titres identite on refuser" do
       expect(champ_titre_identite.piece_justificative_file.attached?).to be_truthy
       expect(champ_titre_identite_vide.piece_justificative_file.attached?).to be_falsey
       dossier.refuser!(instructeur: dossier.followers_instructeurs.first, motivation: "yolo!")
-      expect(champ_titre_identite.piece_justificative_file.attached?).to be_falsey
+      expect(Champ.exists?(champ_titre_identite.id)).to be_falsey
     end
 
     it "clean up titres identite on classer_sans_suite" do
       expect(champ_titre_identite.piece_justificative_file.attached?).to be_truthy
       expect(champ_titre_identite_vide.piece_justificative_file.attached?).to be_falsey
       dossier.classer_sans_suite!(instructeur: dossier.followers_instructeurs.first, motivation: "yolo!")
-      expect(champ_titre_identite.piece_justificative_file.attached?).to be_falsey
+      expect(Champ.exists?(champ_titre_identite.id)).to be_falsey
     end
 
     context 'en_construction' do
@@ -2158,7 +2158,7 @@ describe Dossier, type: :model do
         expect(champ_titre_identite.piece_justificative_file.attached?).to be_truthy
         expect(champ_titre_identite_vide.piece_justificative_file.attached?).to be_falsey
         dossier.accepter_automatiquement!
-        expect(champ_titre_identite.piece_justificative_file.attached?).to be_falsey
+        expect(Champ.exists?(champ_titre_identite.id)).to be_falsey
       end
     end
   end

spec/models/prefill_champs_spec.rb

@@ -3,7 +3,8 @@
 RSpec.describe PrefillChamps do
   describe "#to_a", vcr: { cassette_name: 'api_geo_all' } do
     let(:procedure) { create(:procedure, :published, types_de_champ_public:, types_de_champ_private:) }
-    let(:dossier) { create(:dossier, :brouillon, procedure: procedure) }
+    let(:dossier) { create(:dossier, :brouillon, procedure:) }
+    let(:linked_dossier) { create(:dossier, :en_construction, procedure:) }
     let(:types_de_champ_public) { [] }
     let(:types_de_champ_private) { [] }
 
@@ -68,11 +69,12 @@ RSpec.describe PrefillChamps do
         let(:types_de_champ_public) { [{ type: type_de_champ_type }] }
         let(:type_de_champ) { procedure.published_revision.types_de_champ_public.first }
         let(:champ) { find_champ_by_stable_id(dossier, type_de_champ.stable_id) }
+        let(:champ_value) { value == 'linked_dossier_id' ? linked_dossier.id : value }
 
-        let(:params) { { "champ_#{type_de_champ.to_typed_id_for_query}" => value } }
+        let(:params) { { "champ_#{type_de_champ.to_typed_id_for_query}" => champ_value } }
 
         it "builds an array of hash matching the given params" do
-          expect(prefill_champs_array).to match([{ id: champ.id }.merge(attributes(champ, value))])
+          expect(prefill_champs_array).to match([{ id: champ.id }.merge(attributes(champ, champ_value))])
         end
       end
     end
@@ -82,11 +84,12 @@ RSpec.describe PrefillChamps do
         let(:types_de_champ_private) { [{ type: type_de_champ_type }] }
         let(:type_de_champ) { procedure.published_revision.types_de_champ_private.first }
         let(:champ) { find_champ_by_stable_id(dossier, type_de_champ.stable_id) }
+        let(:champ_value) { value == 'linked_dossier_id' ? linked_dossier.id : value }
 
-        let(:params) { { "champ_#{type_de_champ.to_typed_id_for_query}" => value } }
+        let(:params) { { "champ_#{type_de_champ.to_typed_id_for_query}" => champ_value } }
 
         it "builds an array of hash matching the given params" do
-          expect(prefill_champs_array).to match([{ id: champ.id }.merge(attributes(champ, value))])
+          expect(prefill_champs_array).to match([{ id: champ.id }.merge(attributes(champ, champ_value))])
         end
       end
     end
@@ -125,7 +128,7 @@ RSpec.describe PrefillChamps do
     it_behaves_like "a champ public value that is authorized", :communes, ['01540', '01457']
     it_behaves_like "a champ public value that is authorized", :address, "20 avenue de Ségur 75007 Paris"
     it_behaves_like "a champ public value that is authorized", :multiple_drop_down_list, ["val1", "val2"]
-    it_behaves_like "a champ public value that is authorized", :dossier_link, "1"
+    it_behaves_like "a champ public value that is authorized", :dossier_link, 'linked_dossier_id'
     it_behaves_like "a champ public value that is authorized", :epci, ['01', '200042935']
     it_behaves_like "a champ public value that is authorized", :siret, "13002526500013"
 
@@ -167,7 +170,7 @@ RSpec.describe PrefillChamps do
     it_behaves_like "a champ private value that is authorized", :communes, ['01540', '01457']
     it_behaves_like "a champ private value that is authorized", :address, "20 avenue de Ségur 75007 Paris"
     it_behaves_like "a champ private value that is authorized", :multiple_drop_down_list, ["val1", "val2"]
-    it_behaves_like "a champ private value that is authorized", :dossier_link, "1"
+    it_behaves_like "a champ private value that is authorized", :dossier_link, 'linked_dossier_id'
     it_behaves_like "a champ private value that is authorized", :epci, ['01', '200042935']
 
     context "when the private type de champ is authorized (repetition)" do

spec/system/users/dossier_prefill_get_spec.rb

@@ -19,6 +19,7 @@ describe 'Prefilling a dossier (with a GET request):', js: true do
   end
   let(:procedure) { create(:procedure, :for_individual, :published, opendata: true, types_de_champ_public:) }
   let(:dossier) { procedure.dossiers.last }
+  let(:linked_dossier) { create(:dossier, :en_construction, procedure:) }
   let(:types_de_champ) { procedure.active_revision.types_de_champ_public }
 
   let(:type_de_champ_text) { types_de_champ[0] }
@@ -43,7 +44,7 @@ describe 'Prefilling a dossier (with a GET request):', js: true do
     ]
   }
   let(:epci_value) { ['01', '200029999'] }
-  let(:dossier_link_value) { '42' }
+  let(:dossier_link_value) { linked_dossier.id }
   let(:commune_value) { ['01540', '01457'] }
   let(:commune_libelle) { 'Vonnas (01540)' }
   let(:address_value) { "20 Avenue de Ségur 75007 Paris" }

spec/system/users/dossier_prefill_post_spec.rb

@@ -19,6 +19,7 @@ describe 'Prefilling a dossier (with a POST request):', js: true do
   end
   let(:procedure) { create(:procedure, :for_individual, :published, types_de_champ_public:) }
   let(:dossier) { procedure.dossiers.last }
+  let(:linked_dossier) { create(:dossier, :en_construction, procedure:) }
   let(:types_de_champ) { procedure.active_revision.types_de_champ_public }
 
   let(:type_de_champ_text) { types_de_champ[0] }
@@ -51,7 +52,7 @@ describe 'Prefilling a dossier (with a POST request):', js: true do
   let(:integer_repetition_libelle) { sub_type_de_champs_repetition.second.libelle }
   let(:text_repetition_value) { "First repetition text" }
   let(:integer_repetition_value) { "42" }
-  let(:dossier_link_value) { '42' }
+  let(:dossier_link_value) { linked_dossier.id }
   let(:prenom_value) { 'Jean' }
   let(:nom_value) { 'Dupont' }
   let(:genre_value) { 'M.' }