diff --git a/phoenix-tests/unit/tests/app/models/product_drive_participant_spec.rb b/phoenix-tests/unit/tests/app/models/product_drive_participant_spec.rb
new file mode 100644
index 0000000000..59afb696f5
--- /dev/null
+++ b/phoenix-tests/unit/tests/app/models/product_drive_participant_spec.rb
@@ -0,0 +1,101 @@
+require "rails_helper"
+
+RSpec.describe ProductDriveParticipant, type: :model do
+  let(:organization) { Organization.create!(name: "Test Organization") }
+  let(:product_drive_participant) { described_class.new(organization: organization) }
+
+  describe "associations" do
+    it "has many donations" do
+      expect(product_drive_participant).to have_many(:donations).inverse_of(:product_drive_participant).dependent(:destroy)
+    end
+  end
+
+  describe "validations" do
+    context "when phone is blank" do
+      it "validates presence of email" do
+        product_drive_participant.phone = nil
+        product_drive_participant.email = nil
+        product_drive_participant.valid?
+        expect(product_drive_participant.errors[:email]).to include("Must provide a phone or an e-mail")
+      end
+    end
+
+    context "when email is blank" do
+      it "validates presence of phone" do
+        product_drive_participant.email = nil
+        product_drive_participant.phone = nil
+        product_drive_participant.valid?
+        expect(product_drive_participant.errors[:phone]).to include("Must provide a phone or an e-mail")
+      end
+    end
+
+    context "when contact_name is blank" do
+      it "validates presence of business_name" do
+        product_drive_participant.contact_name = nil
+        product_drive_participant.business_name = nil
+        product_drive_participant.valid?
+        expect(product_drive_participant.errors[:business_name]).to include("Must provide a name or a business name")
+      end
+    end
+
+    context "when business_name is blank" do
+      it "validates presence of contact_name" do
+        product_drive_participant.business_name = nil
+        product_drive_participant.contact_name = nil
+        product_drive_participant.valid?
+        expect(product_drive_participant.errors[:contact_name]).to include("Must provide a name or a business name")
+      end
+    end
+
+    it "validates length of comment" do
+      product_drive_participant.comment = "a" * 501
+      product_drive_participant.valid?
+      expect(product_drive_participant.errors[:comment]).to include("is too long (maximum is 500 characters)")
+    end
+  end
+
+  describe "scopes" do
+    describe ".alphabetized" do
+      it "orders by contact_name" do
+        participant1 = ProductDriveParticipant.create!(contact_name: "Zeta", phone: "123456789", organization: organization)
+        participant2 = ProductDriveParticipant.create!(contact_name: "Alpha", phone: "987654321", organization: organization)
+        expect(ProductDriveParticipant.alphabetized).to eq([participant2, participant1])
+      end
+    end
+  end
+
+  describe "#volume" do
+    it "calculates the total volume of donations" do
+      donation1 = double("Donation", line_items: double("LineItems", total: 10))
+      donation2 = double("Donation", line_items: double("LineItems", total: 20))
+      allow(product_drive_participant).to receive(:donations).and_return([donation1, donation2])
+      expect(product_drive_participant.volume).to eq(30)
+    end
+  end
+
+  describe "#volume_by_product_drive" do
+    it "calculates the total volume of donations for a specific product drive" do
+      product_drive_id = 1
+      donation1 = double("Donation", line_items: double("LineItems", total: 10))
+      donation2 = double("Donation", line_items: double("LineItems", total: 20))
+      allow(product_drive_participant.donations).to receive(:by_product_drive).with(product_drive_id).and_return([donation1, donation2])
+      expect(product_drive_participant.volume_by_product_drive(product_drive_id)).to eq(30)
+    end
+  end
+
+  describe "#donation_source_view" do
+    context "when contact_name is present" do
+      it "returns the formatted donation source view" do
+        product_drive_participant.contact_name = "John Doe"
+        expect(product_drive_participant.donation_source_view).to eq("John Doe (participant)")
+      end
+    end
+
+    context "when contact_name is blank" do
+      it "returns nil" do
+        product_drive_participant.contact_name = nil
+        expect(product_drive_participant.donation_source_view).to be_nil
+      end
+    end
+  end
+end
diff --git a/phoenix-tests/unit/tests/app/models/product_drive_spec.rb b/phoenix-tests/unit/tests/app/models/product_drive_spec.rb
new file mode 100644
index 0000000000..98945529a4
--- /dev/null
+++ b/phoenix-tests/unit/tests/app/models/product_drive_spec.rb
@@ -0,0 +1,168 @@
+require "rails_helper"
+
+RSpec.describe ProductDrive, type: :model do
+  let(:organization) { create(:organization) }
+  let(:product_drive) { create(:product_drive, organization: organization) }
+  let(:donation) { create(:donation, product_drive: product_drive) }
+  let(:line_item) { create(:line_item, donation: donation) }
+
+  describe "associations" do
+    it "belongs to organization" do
+      expect(product_drive.organization).to eq(organization)
+    end
+
+    it "has many donations" do
+      expect(product_drive.donations).to include(donation)
+    end
+
+    it "has many product_drive_participants through donations" do
+      participant = create(:product_drive_participant, donations: [donation])
+      expect(product_drive.product_drive_participants).to include(participant)
+    end
+  end
+
+  describe "validations" do
+    it "validates presence of name" do
+      product_drive.name = nil
+      expect(product_drive).not_to be_valid
+      expect(product_drive.errors[:name]).to include("A name must be chosen.")
+    end
+
+    it "validates presence of start_date" do
+      product_drive.start_date = nil
+      expect(product_drive).not_to be_valid
+      expect(product_drive.errors[:start_date]).to include("Please enter a start date.")
+    end
+
+    it "validates end_date is after start_date" do
+      product_drive.start_date = Date.today
+      product_drive.end_date = Date.yesterday
+      expect(product_drive).not_to be_valid
+      expect(product_drive.errors[:end_date]).to include("End date must be after the start date")
+    end
+  end
+
+  describe "scopes" do
+    describe ".by_name" do
+      it "filters by name" do
+        create(:product_drive, name: "Drive A")
+        create(:product_drive, name: "Drive B")
+        expect(ProductDrive.by_name("Drive A").count).to eq(1)
+      end
+    end
+
+    describe ".by_item_category_id" do
+      it "filters by item category id" do
+        item_category = create(:item_category)
+        item = create(:item, item_category: item_category)
+        line_item.update(item: item)
+        expect(ProductDrive.by_item_category_id(item_category.id)).to include(product_drive)
+      end
+    end
+
+    describe ".within_date_range" do
+      it "filters by date range" do
+        create(:product_drive, start_date: Date.today - 5, end_date: Date.today + 5)
+        create(:product_drive, start_date: Date.today - 10, end_date: Date.today - 1)
+        expect(ProductDrive.within_date_range("#{Date.today - 3} - #{Date.today + 3}").count).to eq(1)
+      end
+    end
+
+    describe ".alphabetized" do
+      it "orders by name" do
+        drive_a = create(:product_drive, name: "Drive A")
+        drive_b = create(:product_drive, name: "Drive B")
+        expect(ProductDrive.alphabetized).to eq([drive_a, drive_b])
+      end
+    end
+  end
+
+  describe "instance methods" do
+    describe "#end_date_is_bigger_of_end_date" do
+      it "adds error if end_date is before start_date" do
+        product_drive.start_date = Date.today
+        product_drive.end_date = Date.yesterday
+        product_drive.valid?
+        expect(product_drive.errors[:end_date]).to include("End date must be after the start date")
+      end
+    end
+
+    describe "#donation_quantity" do
+      it "calculates total donation quantity" do
+        line_item.update(quantity: 5)
+        expect(product_drive.donation_quantity).to eq(5)
+      end
+    end
+
+    describe "#distinct_items_count" do
+      it "counts distinct items" do
+        create(:line_item, donation: donation, item: line_item.item)
+        expect(product_drive.distinct_items_count).to eq(1)
+      end
+    end
+
+    describe "#in_kind_value" do
+      it "calculates in-kind value" do
+        allow(donation).to receive(:value_per_itemizable).and_return(100)
+        expect(product_drive.in_kind_value).to eq(100)
+      end
+    end
+
+    describe "#donation_source_view" do
+      it "returns formatted donation source view" do
+        expect(product_drive.donation_source_view).to eq("#{product_drive.name} (product drive)")
+      end
+    end
+
+    describe "#item_quantities_by_name_and_date" do
+      it "returns item quantities filtered by date and sorted by name" do
+        date_range = (Date.today - 1)..(Date.today + 1)
+        expect(product_drive.item_quantities_by_name_and_date(date_range)).to be_an(Array)
+      end
+    end
+
+    describe "#donation_quantity_by_date" do
+      it "calculates donation quantity by date" do
+        date_range = (Date.today - 1)..(Date.today + 1)
+        expect(product_drive.donation_quantity_by_date(date_range)).to eq(0)
+      end
+
+      context "with item_category_id" do
+        it "filters donation quantity by item category id" do
+          item_category = create(:item_category)
+          item = create(:item, item_category: item_category)
+          line_item.update(item: item)
+          date_range = (Date.today - 1)..(Date.today + 1)
+          expect(product_drive.donation_quantity_by_date(date_range, item_category.id)).to eq(0)
+        end
+      end
+    end
+
+    describe "#distinct_items_count_by_date" do
+      it "counts distinct items by date" do
+        date_range = (Date.today - 1)..(Date.today + 1)
+        expect(product_drive.distinct_items_count_by_date(date_range)).to eq(0)
+      end
+
+      context "with item_category_id" do
+        it "filters distinct items count by item category id" do
+          item_category = create(:item_category)
+          item = create(:item, item_category: item_category)
+          line_item.update(item: item)
+          date_range = (Date.today - 1)..(Date.today + 1)
+          expect(product_drive.distinct_items_count_by_date(date_range, item_category.id)).to eq(0)
+        end
+      end
+    end
+  end
+
+  describe "class methods" do
+    describe ".search_date_range" do
+      it "parses date range from string" do
+        dates = "2023-01-01 - 2023-12-31"
+        result = ProductDrive.search_date_range(dates)
+        expect(result).to eq({ start_date: "2023-01-01", end_date: "2023-12-31" })
+      end
+    end
+  end
+end