add tests regarding /users/statistiques view

spec/views/users/statistiques/show.html.haml_spec.rb

@@ -0,0 +1,16 @@
+describe 'users/statistiques/show.html.haml', type: :view do
+  let(:procedure) { create(:procedure) }
+
+  before do
+    assign(:procedure, procedure)
+  end
+
+  subject { render }
+
+  it "display stats" do
+    expect(subject).to have_text("RÉPARTITION PAR SEMAINE")
+    expect(subject).to have_text("AVANCÉE DES DOSSIERS")
+    expect(subject).to have_text("TAUX D’ACCEPTATION")
+    expect(subject).to have_text(procedure.libelle)
+  end
+end