add test for evenement vie and fix associations

app/models/evenement_vie.rb

@@ -1,5 +1,6 @@
 class EvenementVie < ActiveRecord::Base
-  #TODO a tester
+  has_many :formulaires
+
   def self.for_admi_facile
     where(use_admi_facile: true)
   end

spec/models/evenement_vie_spec.rb

@@ -0,0 +1,26 @@
+require 'spec_helper'
+
+describe EvenementVie do
+  describe 'database column' do
+    it { is_expected.to have_db_column(:nom) }
+    it { is_expected.to have_db_column(:created_at) }
+    it { is_expected.to have_db_column(:updated_at) }
+    it { is_expected.to have_db_column(:use_admi_facile) }
+  end
+
+  describe 'associations' do
+    it { is_expected.to have_many(:formulaires) }
+  end
+
+  describe '.for_admi_facile' do
+    let(:evenement_for_admi_facile) { EvenementVie.where(use_admi_facile: true).first }
+    let(:evenement_not_for_admi_facile) { EvenementVie.where(use_admi_facile: false).first }
+    subject { EvenementVie.for_admi_facile }
+    it 'returns elements where use_admi_facile is true' do
+      expect(subject).to include(evenement_for_admi_facile)
+    end
+    it 'does not return elements where use_admi_facile is false' do
+      expect(subject).not_to include(evenement_not_for_admi_facile)
+    end
+  end
+end