edit TDD 2.4

test/proptracker_web/controllers/2.4_edit_ad_test.exs

+defmodule ProptrackerWeb.AdvertisementUpdateTest do
+  use ProptrackerWeb.ConnCase
+
+  alias Proptracker.Accounts.{User, Advertisement}
+  alias Proptracker.Repo
+
+  @valid_user_attrs %{name: "John Doe", username: "john_doe", password: "secret123", date_of_birth: ~D[1990-01-01], phone_number: "123456789"}
+  @valid_advertisement_attrs %{
+    title: "Sample Ad",
+    pictures: ["path/to/image1.jpg", "path/to/image2.jpg"],
+    description: "Sample Description",
+    type: "rent",
+    price: Decimal.new("1000.00"),
+    square_meters: 100,
+    location: "Sample City",
+    rooms: 2,
+    floor: 1,
+    total_floors: 5,
+    state: "available"
+  }
+
+  # Create user helper function
+  defp create_user(_) do
+    {:ok, user} = Repo.insert(%User{} |> User.changeset(@valid_user_attrs))
+    %{user: user}
+  end
+
+  # Create advertisement helper function, preload user association
+  defp create_advertisement(%{user: user}) do
+    advertisement_attrs = Map.put(@valid_advertisement_attrs, :user_id, user.id)
+    changeset = Advertisement.changeset(%Advertisement{}, advertisement_attrs)
+    {:ok, advertisement} = Repo.insert(changeset)
+    advertisement = Repo.preload(advertisement, :user)
+    %{advertisement: advertisement}
+  end
+
+  # Login helper function
+  defp login_user(conn, user) do
+    post(conn, "/login", user: %{username: user.username, password: user.password})
+  end
+
+  describe "update advertisement" do
+    setup [:create_user, :create_advertisement]
+
+    test "advertisement is successfully updated", %{conn: conn, user: user, advertisement: advertisement} do
+      # Simulate logging in the user
+      conn = login_user(conn, user)
+
+      # Ensure user is logged in (session contains user_id)
+      assert get_session(conn, :user_id) == user.id
+
+      # Simulate a PUT request to update the advertisement
+      updated_attrs = Map.put(@valid_advertisement_attrs, :title, "Updated Ad Title")
+      conn =
+        put(conn, ~p"/advertisements/#{advertisement.id}", %{
+          "advertisement" => updated_attrs
+        })
+
+      # Retrieve the updated advertisement from the database
+      updated_advertisement = Repo.get(Advertisement, advertisement.id)
+
+      # Check if the advertisement was successfully updated in the database
+      assert updated_advertisement != nil
+      assert updated_advertisement.title == "Updated Ad Title"
+      assert updated_advertisement.description == "Sample Description"
+      assert updated_advertisement.location == "Sample City"
+      assert updated_advertisement.user_id == user.id
+      assert updated_advertisement.state == "available"
+    end
+
+    test "advertisement is not updated with invalid data", %{conn: conn, user: user, advertisement: advertisement} do
+      # Simulate logging in the user
+      conn = login_user(conn, user)
+
+      # Ensure user is logged in (session contains user_id)
+      assert get_session(conn, :user_id) == user.id
+
+      # Simulate a PUT request with missing title (required field)
+      conn =
+        put(conn, ~p"/advertisements/#{advertisement.id}", %{
+          "advertisement" => Map.put(@valid_advertisement_attrs, :user_id, user.id)
+          |> Map.delete(:title)
+        })
+
+      # Check that the advertisement is not updated
+      unchanged_advertisement = Repo.get(Advertisement, advertisement.id)
+      assert unchanged_advertisement.title == advertisement.title  # original title is unchanged
+    end
+  end
+end