Add tests for image controller

spec/requests/admin/images_spec.rb

@@ -0,0 +1,71 @@
+# frozen_string_literal: true
+
+require "spec_helper"
+
+describe "/admin/products/:product_id/images", type: :request do
+  include AuthenticationHelper
+
+  let!(:product) { create(:product) }
+
+  before do
+    login_as_admin
+  end
+
+  shared_examples "updating images" do
+    let(:params) do
+      {
+        image: {
+          attachment: fixture_file_upload("logo.png", "image/png"),
+          viewable_id: product.id,
+        }
+      }
+    end
+
+    it "creates a new image and redirects" do
+      expect {
+        subject
+        product.reload
+      }.to change{ product.image&.attachment&.filename.to_s }
+
+      expect(response.status).to eq 302
+      expect(response.location).to end_with spree.admin_product_images_path(product)
+
+      expect(product.image.url(:product)).to end_with "logo.png"
+    end
+
+    context "with wrong type of file" do
+      let(:params) do
+        {
+          image: {
+            attachment: fixture_file_upload("sample_file_120_products.csv", "text/csv"),
+            viewable_id: product.id,
+          }
+        }
+      end
+
+      it "responds with an error" do
+        expect {
+          subject
+          product.reload
+        }.to_not change{ product.image&.attachment&.filename.to_s }
+
+        pending "error status code"
+        expect(response).to be_unprocessable
+        expect(response.body).to include "Attachment has an invalid content type"
+      end
+    end
+  end
+
+  describe "POST /admin/products/:product_id/images" do
+    subject { post(spree.admin_product_images_path(product), params:) }
+
+    it_behaves_like "updating images"
+  end
+
+  describe "PATCH /admin/products/:product_id/images/:id" do
+    let!(:product) { create(:product_with_image) }
+    subject { patch(spree.admin_product_image_path(product, product.image), params:) }
+
+    it_behaves_like "updating images"
+  end
+end