Add tests for InboxController

spec/controllers/inbox_controller_spec.rb

@@ -0,0 +1,32 @@
+# frozen_string_literal: true
+
+require "rails_helper"
+
+describe InboxController, type: :controller do
+  let(:user) { FactoryBot.create(:user) }
+
+  describe "#show" do
+    subject { get :show }
+
+    context "when user is signed in" do
+      before(:each) { sign_in(user) }
+
+      it "shows the inbox" do
+        subject
+        expect(response).to render_template("show")
+      end
+    end
+  end
+
+  describe "#create" do
+    subject { post :create }
+
+    context "when user is signed in" do
+      before(:each) { sign_in(user) }
+
+      it "creates an inbox entry" do
+        expect { subject }.to(change { user.inboxes.count }.by(1))
+      end
+    end
+  end
+end