feat(membership-fees): add database schema and Ash domain structure

test/membership_fees/foreign_key_test.exs

@@ -0,0 +1,220 @@
+defmodule Mv.MembershipFees.ForeignKeyTest do
+  @moduledoc """
+  Tests for foreign key behaviors (CASCADE and RESTRICT).
+  """
+  use Mv.DataCase, async: true
+
+  alias Mv.MembershipFees.MembershipFeeCycle
+  alias Mv.MembershipFees.MembershipFeeType
+  alias Mv.Membership.Member
+
+  describe "CASCADE behavior" do
+    test "deleting member deletes associated membership_fee_cycles" do
+      # Create member
+      {:ok, member} =
+        Ash.create(Member, %{
+          first_name: "Cascade",
+          last_name: "Test",
+          email: "cascade.test.#{System.unique_integer([:positive])}@example.com"
+        })
+
+      # Create fee type
+      {:ok, fee_type} =
+        Ash.create(MembershipFeeType, %{
+          name: "Cascade Test Fee #{System.unique_integer([:positive])}",
+          amount: Decimal.new("100.00"),
+          interval: :monthly
+        })
+
+      # Create multiple cycles for this member
+      {:ok, cycle1} =
+        Ash.create(MembershipFeeCycle, %{
+          cycle_start: ~D[2025-01-01],
+          amount: Decimal.new("100.00"),
+          member_id: member.id,
+          membership_fee_type_id: fee_type.id
+        })
+
+      {:ok, cycle2} =
+        Ash.create(MembershipFeeCycle, %{
+          cycle_start: ~D[2025-02-01],
+          amount: Decimal.new("100.00"),
+          member_id: member.id,
+          membership_fee_type_id: fee_type.id
+        })
+
+      # Verify cycles exist
+      assert {:ok, _} = Ash.get(MembershipFeeCycle, cycle1.id)
+      assert {:ok, _} = Ash.get(MembershipFeeCycle, cycle2.id)
+
+      # Delete member
+      assert :ok = Ash.destroy(member)
+
+      # Verify cycles are also deleted (CASCADE)
+      # NotFound is wrapped in Ash.Error.Invalid
+      assert {:error, %Ash.Error.Invalid{}} = Ash.get(MembershipFeeCycle, cycle1.id)
+      assert {:error, %Ash.Error.Invalid{}} = Ash.get(MembershipFeeCycle, cycle2.id)
+    end
+  end
+
+  describe "RESTRICT behavior" do
+    test "cannot delete membership_fee_type if cycles reference it" do
+      # Create member
+      {:ok, member} =
+        Ash.create(Member, %{
+          first_name: "Restrict",
+          last_name: "Test",
+          email: "restrict.test.#{System.unique_integer([:positive])}@example.com"
+        })
+
+      # Create fee type
+      {:ok, fee_type} =
+        Ash.create(MembershipFeeType, %{
+          name: "Restrict Test Fee #{System.unique_integer([:positive])}",
+          amount: Decimal.new("100.00"),
+          interval: :monthly
+        })
+
+      # Create a cycle referencing this fee type
+      {:ok, _cycle} =
+        Ash.create(MembershipFeeCycle, %{
+          cycle_start: ~D[2025-01-01],
+          amount: Decimal.new("100.00"),
+          member_id: member.id,
+          membership_fee_type_id: fee_type.id
+        })
+
+      # Try to delete fee type - should fail due to RESTRICT
+      assert {:error, error} = Ash.destroy(fee_type)
+
+      # Check that it's a foreign key violation error
+      assert is_struct(error, Ash.Error.Invalid) or is_struct(error, Ash.Error.Unknown)
+    end
+
+    test "can delete membership_fee_type if no cycles reference it" do
+      # Create fee type without any cycles
+      {:ok, fee_type} =
+        Ash.create(MembershipFeeType, %{
+          name: "Deletable Fee #{System.unique_integer([:positive])}",
+          amount: Decimal.new("100.00"),
+          interval: :monthly
+        })
+
+      # Should be able to delete
+      assert :ok = Ash.destroy(fee_type)
+
+      # Verify it's gone (NotFound is wrapped in Ash.Error.Invalid)
+      assert {:error, %Ash.Error.Invalid{}} = Ash.get(MembershipFeeType, fee_type.id)
+    end
+
+    test "cannot delete membership_fee_type if members reference it" do
+      # Create fee type
+      {:ok, fee_type} =
+        Ash.create(MembershipFeeType, %{
+          name: "Member Ref Fee #{System.unique_integer([:positive])}",
+          amount: Decimal.new("100.00"),
+          interval: :monthly
+        })
+
+      # Create member with this fee type
+      {:ok, _member} =
+        Ash.create(Member, %{
+          first_name: "FeeType",
+          last_name: "Reference",
+          email: "feetype.ref.#{System.unique_integer([:positive])}@example.com",
+          membership_fee_type_id: fee_type.id
+        })
+
+      # Try to delete fee type - should fail due to RESTRICT
+      assert {:error, error} = Ash.destroy(fee_type)
+      assert is_struct(error, Ash.Error.Invalid) or is_struct(error, Ash.Error.Unknown)
+    end
+  end
+
+  describe "member extensions" do
+    test "member can be created with membership_fee_type_id" do
+      # Create fee type first
+      {:ok, fee_type} =
+        Ash.create(MembershipFeeType, %{
+          name: "Create Test Fee #{System.unique_integer([:positive])}",
+          amount: Decimal.new("100.00"),
+          interval: :yearly
+        })
+
+      # Create member with fee type
+      {:ok, member} =
+        Ash.create(Member, %{
+          first_name: "With",
+          last_name: "FeeType",
+          email: "with.feetype.#{System.unique_integer([:positive])}@example.com",
+          membership_fee_type_id: fee_type.id
+        })
+
+      assert member.membership_fee_type_id == fee_type.id
+    end
+
+    test "member can be created with membership_fee_start_date" do
+      {:ok, member} =
+        Ash.create(Member, %{
+          first_name: "With",
+          last_name: "StartDate",
+          email: "with.startdate.#{System.unique_integer([:positive])}@example.com",
+          membership_fee_start_date: ~D[2025-01-01]
+        })
+
+      assert member.membership_fee_start_date == ~D[2025-01-01]
+    end
+
+    test "member can be created without membership fee fields" do
+      {:ok, member} =
+        Ash.create(Member, %{
+          first_name: "No",
+          last_name: "FeeFields",
+          email: "no.feefields.#{System.unique_integer([:positive])}@example.com"
+        })
+
+      assert member.membership_fee_type_id == nil
+      assert member.membership_fee_start_date == nil
+    end
+
+    test "member can be updated with membership_fee_type_id" do
+      # Create fee type
+      {:ok, fee_type} =
+        Ash.create(MembershipFeeType, %{
+          name: "Update Test Fee #{System.unique_integer([:positive])}",
+          amount: Decimal.new("100.00"),
+          interval: :yearly
+        })
+
+      # Create member without fee type
+      {:ok, member} =
+        Ash.create(Member, %{
+          first_name: "Update",
+          last_name: "Test",
+          email: "update.test.#{System.unique_integer([:positive])}@example.com"
+        })
+
+      assert member.membership_fee_type_id == nil
+
+      # Update member with fee type
+      {:ok, updated_member} = Ash.update(member, %{membership_fee_type_id: fee_type.id})
+
+      assert updated_member.membership_fee_type_id == fee_type.id
+    end
+
+    test "member can be updated with membership_fee_start_date" do
+      {:ok, member} =
+        Ash.create(Member, %{
+          first_name: "Start",
+          last_name: "Date",
+          email: "start.date.#{System.unique_integer([:positive])}@example.com"
+        })
+
+      assert member.membership_fee_start_date == nil
+
+      {:ok, updated_member} = Ash.update(member, %{membership_fee_start_date: ~D[2025-06-01]})
+
+      assert updated_member.membership_fee_start_date == ~D[2025-06-01]
+    end
+  end
+end