contact: rewrite specs to use finer-grained mocks

Before the specs mocked entire controller methods–which caused them
not to be tested.

Now we use finer mocks (or no mocks at all), to actually run more code.

spec/controllers/support_controller_spec.rb

@@ -7,6 +7,7 @@ describe SupportController, type: :controller do
     before do
       sign_in user
     end
+
     let(:user) { create(:user) }
 
     it 'should not have email field' do
@@ -51,51 +52,64 @@ describe SupportController, type: :controller do
     end
 
     describe "send form" do
-      it 'should create conversation' do
-        expect(subject).not_to receive(:create_commentaire)
-        allow(subject).to receive(:create_conversation).and_return(true)
+      subject do
+        post :create, params: { subject: 'bonjour', text: 'un message' }
+      end
 
-        post :create, params: {
-          subject: 'bonjour',
-          text: 'un message'
-        }
+      it 'creates a conversation on HelpScout' do
+        expect_any_instance_of(Helpscout::FormAdapter).to receive(:send_form).and_return(true)
+
+        expect { subject }.to change(Commentaire, :count).by(0)
 
         expect(flash[:notice]).to match('Votre message a été envoyé.')
         expect(response).to redirect_to root_path(formulaire_contact_general_submitted: true)
       end
 
-      context "with dossier" do
-        let(:user) { dossier.user }
+      context 'when a drafted dossier is mentionned' do
         let(:dossier) { create(:dossier) }
+        let(:user) { dossier.user }
 
-        it 'should create conversation' do
-          expect(subject).not_to receive(:create_commentaire)
-          allow(subject).to receive(:create_conversation).and_return(true)
-
+        subject do
           post :create, params: {
             dossier_id: dossier.id,
             type: Helpscout::FormAdapter::TYPE_INSTRUCTION,
             subject: 'bonjour',
             text: 'un message'
           }
+        end
+
+        it 'creates a conversation on HelpScout' do
+          expect_any_instance_of(Helpscout::FormAdapter).to receive(:send_form).and_return(true)
+
+          expect { subject }.to change(Commentaire, :count).by(0)
 
           expect(flash[:notice]).to match('Votre message a été envoyé.')
           expect(response).to redirect_to root_path(formulaire_contact_general_submitted: true)
         end
+      end
 
-        context "en_construction" do
+      context 'when a submitted dossier is mentionned' do
         let(:dossier) { create(:dossier, :en_construction) }
+        let(:user) { dossier.user }
 
-          it 'should create commentaire' do
-            allow(subject).to receive(:create_commentaire).and_return(true)
-            expect(subject).not_to receive(:create_conversation)
-
+        subject do
           post :create, params: {
             dossier_id: dossier.id,
             type: Helpscout::FormAdapter::TYPE_INSTRUCTION,
             subject: 'bonjour',
             text: 'un message'
           }
+        end
+
+        it 'posts the message to the dossier messagerie' do
+          expect_any_instance_of(Helpscout::FormAdapter).not_to receive(:send_form)
+
+          expect { subject }.to change(Commentaire, :count).by(1)
+
+          expect(Commentaire.last.email).to eq(user.email)
+          expect(Commentaire.last.dossier).to eq(dossier)
+          expect(Commentaire.last.body).to include('[bonjour]')
+          expect(Commentaire.last.body).to include('un message')
 
           expect(flash[:notice]).to match('Votre message a été envoyé sur la messagerie de votre dossier.')
           expect(response).to redirect_to messagerie_dossier_path(dossier)
@@ -103,7 +117,6 @@ describe SupportController, type: :controller do
       end
     end
   end
-  end
 
   context 'signed out' do
     describe "with dossier" do