Merge branch 'fix_flaky_tests_where_we_sometimes_loose_db_connections' into 'develop'

Fix flaky tests with DB connections; Allow higher amount of restarts for Pleroma.Repo during testing

See merge request pleroma/pleroma!3696

lib/pleroma/application.ex

@@ -112,7 +112,17 @@ def start(_type, _args) do
 
     # See http://elixir-lang.org/docs/stable/elixir/Supervisor.html
     # for other strategies and supported options
-    opts = [strategy: :one_for_one, name: Pleroma.Supervisor]
+    # If we have a lot of caches, default max_restarts can cause test
+    # resets to fail.
+    # Go for the default 3 unless we're in test
+    max_restarts =
+      if @mix_env == :test do
+        100
+      else
+        3
+      end
+
+    opts = [strategy: :one_for_one, name: Pleroma.Supervisor, max_restarts: max_restarts]
     result = Supervisor.start_link(children, opts)
 
     set_postgres_server_version()