Resolves #4818 Fix print feature for product drive with no participant

app/pdfs/donation_pdf.rb

@@ -20,9 +20,13 @@ def initialize(donation)
         @address = nil
         @email = nil
       when Donation::SOURCES[:product_drive]
-        @name = donation.product_drive_participant.business_name
-        @address = donation.product_drive_participant.address
-        @email = donation.product_drive_participant.email
+        if donation.product_drive_participant
+          @name = donation.product_drive_participant.business_name
+          @address = donation.product_drive_participant.address
+          @email = donation.product_drive_participant.email
+        else
+          @name = donation.product_drive.name
+        end
       when Donation::SOURCES[:misc]
         @name = "Misc. Donation"
         @address = nil

spec/pdfs/donation_pdf_spec.rb

@@ -5,6 +5,17 @@
     create(:donation, organization: organization, donation_site: donation_site, source: Donation::SOURCES[:donation_site],
       comment: "A donation comment")
   end
+  let(:product_drive) { create(:product_drive, name: "Second Best Product Drive") }
+  let(:product_drive_participant) {
+    create(:product_drive_participant, business_name: "A Good Place to Collect Diapers", email: "[email protected]")
+  }
+  let(:product_drive_donation) do
+    create(:donation, organization: organization, product_drive: product_drive, source: Donation::SOURCES[:product_drive],
+      product_drive_participant: product_drive_participant, comment: "A product drive donation")
+  end
+  let(:product_drive_donation_without_participant) do
+    create(:donation, organization: organization, product_drive: product_drive, source: Donation::SOURCES[:product_drive], comment: "A product drive donation without participant")
+  end
   let(:item1) { FactoryBot.create(:item, name: "Item 1", package_size: 50, value_in_cents: 100) }
   let(:item2) { FactoryBot.create(:item, name: "Item 2", value_in_cents: 200) }
   let(:item3) { FactoryBot.create(:item, name: "Item 3", value_in_cents: 300) }
@@ -65,4 +76,21 @@
       expect(pdf_test.page(1).text).to include("Total Items Received")
     end
   end
+
+  context "product drive donation" do
+    it "renders correctly" do
+      pdf = described_class.new(organization, product_drive_donation)
+      pdf_test = PDF::Reader.new(StringIO.new(pdf.compute_and_render))
+      expect(pdf_test.page(1).text).to include(product_drive_donation.product_drive_participant.business_name)
+      expect(pdf_test.page(1).text).to include(product_drive_donation.product_drive_participant.email)
+      expect(pdf_test.page(1).text).to include(product_drive_donation.comment)
+    end
+
+    it "renders correctly without a product drive participant" do
+      pdf = described_class.new(organization, product_drive_donation_without_participant)
+      pdf_test = PDF::Reader.new(StringIO.new(pdf.compute_and_render))
+      expect(pdf_test.page(1).text).to include(product_drive_donation_without_participant.product_drive.name)
+      expect(pdf_test.page(1).text).to include(product_drive_donation_without_participant.comment)
+    end
+  end
 end