improve test

Author: greg-rychlewski

integration_test/pg/prepare_test.exs

@@ -8,12 +8,18 @@ defmodule Ecto.Integration.PrepareTest do
     one = TestRepo.insert!(%Post{title: "one"})
     two = TestRepo.insert!(%Post{title: "two"})
 
+    stmt_count_query = "SHOW GLOBAL STATUS LIKE '%prepared_stmt_count%'"
+
     # Uncached
     assert TestRepo.all(Post, prepare: :unnamed) == [one, two]
+    assert %{rows: [[0]]} = TestRepo.query(stmt_count_query, [])
     assert TestRepo.all(Post, prepare: :named) == [one, two]
+    assert %{rows: [[1]]} = TestRepo.query(stmt_count_query, [])
 
     # Cached
     assert TestRepo.all(Post, prepare: :unnamed) == [one, two]
+    assert %{rows: [[1]]} = TestRepo.query(stmt_count_query, [])
     assert TestRepo.all(Post, prepare: :named) == [one, two]
+    assert %{rows: [[1]]} = TestRepo.query(stmt_count_query, [])
   end
 end