Add tests.

spec/controllers/namespaces_controller_spec.rb

+require 'spec_helper'
+
+describe NamespacesController do
+  let!(:user) { create(:user, avatar: fixture_file_upload(Rails.root + "spec/fixtures/dk.png", "image/png")) }
+
+  describe "GET show" do
+    context "when the namespace belongs to a user" do
+      let!(:other_user) { create(:user) }
+
+      it "redirects to the user's page" do
+        get :show, id: other_user.username
+
+        expect(response).to redirect_to(user_path(other_user))
+      end
+    end
+
+    context "when the namespace belongs to a group" do
+      let!(:group) { create(:group) }
+      let!(:project) { create(:project, namespace: group) }
+
+      context "when the group has public projects" do
+        before do
+          project.update_attribute(:visibility_level, Project::PUBLIC)
+        end
+
+        context "when not signed in" do
+          it "redirects to the group's page" do
+            get :show, id: group.path
+
+            expect(response).to redirect_to(group_path(group))
+          end
+        end
+
+        context "when signed in" do
+          before do
+            sign_in(user)
+          end
+
+          it "redirects to the group's page" do
+            get :show, id: group.path
+
+            expect(response).to redirect_to(group_path(group))
+          end
+        end
+      end
+
+      context "when the project doesn't have public projects" do
+        context "when not signed in" do
+          it "redirects to the sign in page" do
+            get :show, id: group.path
+
+            expect(response).to redirect_to(new_user_session_path)
+          end
+        end
+
+        context "when signed in" do
+          before do
+            sign_in(user)
+          end
+
+          context "when the user has access to the project" do
+            before do
+              project.team << [user, :master]
+            end
+
+            context "when the user is blocked" do
+              before do
+                user.block
+                project.team << [user, :master]
+              end
+
+              it "redirects to the sign in page" do
+                get :show, id: group.path
+
+                expect(response).to redirect_to(new_user_session_path)
+              end
+            end
+
+            context "when the user isn't blocked" do
+              it "redirects to the group's page" do
+                get :show, id: group.path
+
+                expect(response).to redirect_to(group_path(group))
+              end
+            end
+          end
+
+          context "when the user doesn't have access to the project" do
+            it "responds with status 404" do
+              get :show, id: group.path
+
+              expect(response.status).to eq(404)
+            end
+          end
+        end
+      end
+    end
+
+    context "when the namespace doesn't exist" do
+      context "when signed in" do
+        before do
+          sign_in(user)
+        end
+
+        it "responds with status 404" do
+          get :show, id: "doesntexist"
+
+          expect(response.status).to eq(404)
+        end
+      end
+
+      context "when not signed in" do
+        it "redirects to the sign in page" do
+          get :show, id: "doesntexist"
+
+          expect(response).to redirect_to(new_user_session_path)
+        end
+      end
+    end
+  end
+end