diff --git a/test/membership/fuzzy_search_test.exs b/test/membership/fuzzy_search_test.exs
new file mode 100644
index 0000000..9e746d3
--- /dev/null
+++ b/test/membership/fuzzy_search_test.exs
@@ -0,0 +1,164 @@
+defmodule Mv.Membership.FuzzySearchTest do
+  use Mv.DataCase, async: false
+
+  test "fuzzy_search/2 function exists" do
+    assert function_exported?(Mv.Membership.Member, :fuzzy_search, 2)
+  end
+
+  test "fuzzy_search returns only John Doe by fuzzy query 'john'" do
+    {:ok, john} =
+      Mv.Membership.create_member(%{
+        first_name: "John",
+        last_name: "Doe",
+        email: "john.doe@example.com"
+      })
+
+    {:ok, _jane} =
+      Mv.Membership.create_member(%{
+        first_name: "Adriana",
+        last_name: "Smith",
+        email: "adriana.smith@example.com"
+      })
+
+    {:ok, alice} =
+      Mv.Membership.create_member(%{
+        first_name: "Alice",
+        last_name: "Johnson",
+        email: "alice.johnson@example.com"
+      })
+
+    result =
+      Mv.Membership.Member
+      |> Mv.Membership.Member.fuzzy_search(%{query: "john", fields: [:first_name, :last_name, :email]})
+      |> Ash.read!()
+
+    assert Enum.map(result, & &1.id) == [john.id, alice.id]
+  end
+
+  test "fuzzy_search finds 'Thomas' when searching misspelled 'tomas'" do
+    {:ok, thomas} =
+      Mv.Membership.create_member(%{
+        first_name: "Thomas",
+        last_name: "Doe",
+        email: "john.doe@example.com"
+      })
+
+    {:ok, jane} =
+      Mv.Membership.create_member(%{
+        first_name: "Jane",
+        last_name: "Smith",
+        email: "jane.smith@example.com"
+      })
+
+    {:ok, _alice} =
+      Mv.Membership.create_member(%{
+        first_name: "Alice",
+        last_name: "Johnson",
+        email: "alice.johnson@example.com"
+      })
+
+    result =
+      Mv.Membership.Member
+      |> Mv.Membership.Member.fuzzy_search(%{query: "tomas", fields: [:first_name, :last_name, :email]})
+      |> Ash.read!()
+
+    ids = Enum.map(result, & &1.id)
+    assert thomas.id in ids
+    refute jane.id in ids
+    assert length(ids) >= 1
+  end
+
+  test "empty query returns all members" do
+    {:ok, a} =
+      Mv.Membership.create_member(%{first_name: "A", last_name: "One", email: "a1@example.com"})
+
+    {:ok, b} =
+      Mv.Membership.create_member(%{first_name: "B", last_name: "Two", email: "b2@example.com"})
+
+    result =
+      Mv.Membership.Member
+      |> Mv.Membership.Member.fuzzy_search(%{query: ""})
+      |> Ash.read!()
+
+    assert Enum.sort(Enum.map(result, & &1.id)) |> Enum.uniq() |> Enum.sort()
+           |> Enum.all?(fn id -> id in [a.id, b.id] end)
+  end
+
+  test "substring numeric search matches postal_code mid-string" do
+    {:ok, m1} =
+      Mv.Membership.create_member(%{
+        first_name: "Num",
+        last_name: "One",
+        email: "n1@example.com",
+        postal_code: "12345"
+      })
+
+    {:ok, _m2} =
+      Mv.Membership.create_member(%{
+        first_name: "Num",
+        last_name: "Two",
+        email: "n2@example.com",
+        postal_code: "67890"
+      })
+
+    result =
+      Mv.Membership.Member
+      |> Mv.Membership.Member.fuzzy_search(%{query: "345"})
+      |> Ash.read!()
+
+    ids = Enum.map(result, & &1.id)
+    assert m1.id in ids
+  end
+
+  test "substring numeric search matches house_number mid-string" do
+    {:ok, m1} =
+      Mv.Membership.create_member(%{
+        first_name: "Home",
+        last_name: "One",
+        email: "h1@example.com",
+        house_number: "A345B"
+      })
+
+    {:ok, _m2} =
+      Mv.Membership.create_member(%{
+        first_name: "Home",
+        last_name: "Two",
+        email: "h2@example.com",
+        house_number: "77"
+      })
+
+    result =
+      Mv.Membership.Member
+      |> Mv.Membership.Member.fuzzy_search(%{query: "345"})
+      |> Ash.read!()
+
+    ids = Enum.map(result, & &1.id)
+    assert m1.id in ids
+  end
+
+  test "fuzzy matches street misspelling" do
+    {:ok, s1} =
+      Mv.Membership.create_member(%{
+        first_name: "Road",
+        last_name: "Test",
+        email: "s1@example.com",
+        street: "Main Street"
+      })
+
+    {:ok, _s2} =
+      Mv.Membership.create_member(%{
+        first_name: "Road",
+        last_name: "Other",
+        email: "s2@example.com",
+        street: "Second Avenue"
+      })
+
+    result =
+      Mv.Membership.Member
+      |> Mv.Membership.Member.fuzzy_search(%{query: "mainn"})
+      |> Ash.read!()
+
+    ids = Enum.map(result, & &1.id)
+    assert s1.id in ids
+  end
+end