add tests

test/ex_sieve/builder/join_test.exs

@@ -60,5 +60,27 @@ defmodule ExSieve.Builder.JoinTest do
 
       assert original == built
     end
+
+    test "work with from queries" do
+      grouping = sample_grouping(name: [])
+
+      original = from(u in User) |> (&Ecto.Adapters.SQL.to_sql(:all, ExSieve.Repo, &1)).()
+      built = User |> Join.build(grouping, []) |> (&Ecto.Adapters.SQL.to_sql(:all, ExSieve.Repo, &1)).()
+
+      assert original == built
+    end
+
+    test "work with existent joins" do
+      grouping = sample_grouping(title: [:posts])
+
+      original =
+        User
+        |> join(:inner, [u], p in assoc(u, :posts), as: :posts)
+        |> inspect()
+
+      built = User |> Join.build(grouping, []) |> inspect()
+
+      assert original == built
+    end
   end
 end

test/ex_sieve_test.exs

@@ -9,7 +9,7 @@ defmodule ExSieveTest do
     {:ok, config: %Config{ignore_errors: false}}
   end
 
-  describe "ExSieve.filter/3" do
+  describe "ExSieve.Filter.filter/3" do
     test "return ordered by id and body", %{config: config} do
       [%{body: body} | _] = insert_pair(:post)
 
@@ -56,6 +56,10 @@ defmodule ExSieveTest do
       ids = User |> ExSieve.Filter.filter(%{"cash_lteq" => %Money{amount: 1000}}, config) |> ids()
       assert ids == ids(User)
     end
+
+    test "return error with invalid queries", %{config: config} do
+      assert {:error, :invalid_query} = ExSieve.Filter.filter(InvalidUser, %{}, config)
+    end
   end
 
   defp ids(query), do: query |> Repo.all() |> Enum.map(& &1.id)