add champ_value for dropdown

app/models/logic.rb

@@ -16,6 +16,8 @@ module Logic
     case [left.type, right.type]
     in [a, ^a] # syntax for same type
       true
+    in [:enum, :string]
+      left.options.include?(right.value)
     else
       false
     end

app/models/logic/champ_value.rb

@@ -12,7 +12,7 @@ class Logic::ChampValue < Logic::Term
       champ(champs).true?
     when all_types.fetch(:integer_number), all_types.fetch(:decimal_number)
       champ(champs).for_api
-    when all_types.fetch(:text)
+    when all_types.fetch(:drop_down_list), all_types.fetch(:text)
       champ(champs).value
     end
   end
@@ -28,6 +28,8 @@ class Logic::ChampValue < Logic::Term
       :number
     when all_types.fetch(:text)
       :string
+    when all_types.fetch(:drop_down_list)
+      :enum
     end
   end
 
@@ -54,6 +56,10 @@ class Logic::ChampValue < Logic::Term
     self.class == other.class && @stable_id == other.stable_id
   end
 
+  def options
+    type_de_champ.drop_down_list_enabled_non_empty_options
+  end
+
   private
 
   def type_de_champ

spec/models/logic/champ_value_spec.rb

@@ -41,6 +41,13 @@ describe Logic::ChampValue do
     it { is_expected.to eq(42.01) }
   end
 
+  context 'dropdown tdc' do
+    let(:champ) { create(:champ_drop_down_list, value: 'choix 1') }
+
+    it { expect(champ_value(champ.stable_id).type).to eq(:enum) }
+    it { is_expected.to eq('choix 1') }
+  end
+
   context 'checkbox tdc' do
     let(:champ) { create(:champ_checkbox, value: 'on') }
 

spec/models/logic_spec.rb

@@ -18,6 +18,16 @@ describe Logic do
   describe '.compatible_type?' do
     it { expect(Logic.compatible_type?(constant(true), constant(true))).to be true }
     it { expect(Logic.compatible_type?(constant(1), constant(true))).to be false }
+
+    context 'with a dropdown' do
+      let(:drop_down) { create(:type_de_champ_drop_down_list) }
+      let(:first_option) { drop_down.drop_down_list_enabled_non_empty_options.first }
+
+      it do
+        expect(Logic.compatible_type?(champ_value(drop_down.stable_id), constant(first_option))).to be true
+        expect(Logic.compatible_type?(champ_value(drop_down.stable_id), constant('a'))).to be false
+      end
+    end
   end
 
   describe 'priority' do