Add a simple test for clearing caches

test/teiserver/caches_test.exs

@@ -0,0 +1,42 @@
+defmodule Teiserver.CachesTest do
+  use Teiserver.DataCase, async: false
+
+  # This module is merely here to check that
+  # Teiserver.TeiserverTestLib.clear_all_con_caches does indeed clear the advertised
+  # cache across tests.
+  # because all queries rely heavily on caches, it's important to clear them between
+  # tests so as not to pollute other tests
+
+  @caches [
+      :telemetry_complex_client_event_types_cache,
+      :telemetry_complex_lobby_event_types_cache,
+      :telemetry_complex_match_event_types_cache,
+      :telemetry_complex_server_event_types_cache,
+      :telemetry_property_types_cache,
+      :telemetry_simple_client_event_types_cache,
+      :telemetry_simple_lobby_event_types_cache,
+      :telemetry_simple_match_event_types_cache,
+      :telemetry_simple_server_event_types_cache,
+      :users,
+      :users_lookup_id_with_discord,
+      :users_lookup_id_with_email,
+      :users_lookup_id_with_name,
+      :users_lookup_name_with_id
+  ]
+
+  test "clear caches between tests 1" do
+    for cache <- @caches do
+      assert is_nil(ConCache.get(cache, "test_key"))
+      ConCache.put(cache, "test_key", "test_val")
+      assert "test_val" == ConCache.get(cache, "test_key")
+    end
+  end
+
+  test "clear caches between tests 2" do
+    for cache <- @caches do
+      assert is_nil(ConCache.get(cache, "test_key"))
+      ConCache.put(cache, "test_key", "test_val")
+      assert "test_val" == ConCache.get(cache, "test_key")
+    end
+  end
+end