[Fix #1475] Ensure date is parsable before doing it (to avoid errors)

spec/models/individual_spec.rb

@@ -6,4 +6,38 @@ describe Individual do
   it { is_expected.to have_db_column(:prenom) }
   it { is_expected.to have_db_column(:birthdate) }
   it { is_expected.to belong_to(:dossier) }
+
+  describe ".save" do
+    let(:individual) { build(:individual) }
+
+    subject { individual.save }
+
+    context "with birthdate" do
+      before do
+        individual.birthdate = birthdate_from_user
+        subject
+      end
+
+      context "and the format is dd/mm/yyy " do
+        let(:birthdate_from_user) { "12/11/1980" }
+
+        it { expect(individual.valid?).to be true }
+        it { expect(individual.birthdate).to eq("1980-11-12") }
+      end
+
+      context "and the format is ISO" do
+        let(:birthdate_from_user) { "1980-11-12" }
+
+        it { expect(individual.valid?).to be true }
+        it { expect(individual.birthdate).to eq("1980-11-12") }
+      end
+
+      context "and the format is WTF" do
+        let(:birthdate_from_user) { "1980 1 12" }
+
+        it { expect(individual.valid?).to be false }
+        it { expect(individual.birthdate).to eq("1980 1 12") }
+      end
+    end
+  end
 end