mix phx.new labelmaker --no-ecto --no-mailer

config/test.exs

@@ -0,0 +1,18 @@
+import Config
+
+# We don't run a server during test. If one is required,
+# you can enable the server option below.
+config :labelmaker, LabelmakerWeb.Endpoint,
+  http: [ip: {127, 0, 0, 1}, port: 4002],
+  secret_key_base: "lZMsfcAC1kzLKyhPxLZIArJn6pxh7YsRSeHRlYE5mXmngBjO18ABJyyMSgDmbMyl",
+  server: false
+
+# Print only warnings and errors during test
+config :logger, level: :warning
+
+# Initialize plugs at runtime for faster test compilation
+config :phoenix, :plug_init_mode, :runtime
+
+# Enable helpful, but potentially expensive runtime checks
+config :phoenix_live_view,
+  enable_expensive_runtime_checks: true