From 2a37a6ea8f4f74c9906492d7ab5146ed06040798 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=C5=81ukasz=20Samson?= <lukaszsamson@gmail.com>
Date: Sat, 23 May 2026 11:48:51 +0200
Subject: [PATCH] Fix spec of ex_unit capture_log options

Passing `formatter: nil` was never supported and would crash in https://github.com/elixir-lang/elixir/blob/274dbb6e10ab6e47cf93cc5d576c9a22180b1d2c/lib/ex_unit/lib/ex_unit/capture_server.ex#L79
---
 lib/ex_unit/lib/ex_unit/capture_log.ex | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/ex_unit/lib/ex_unit/capture_log.ex b/lib/ex_unit/lib/ex_unit/capture_log.ex
index 1a7b1288df6..5955583cb15 100644
--- a/lib/ex_unit/lib/ex_unit/capture_log.ex
+++ b/lib/ex_unit/lib/ex_unit/capture_log.ex
@@ -45,7 +45,7 @@ defmodule ExUnit.CaptureLog do
 
   @type capture_log_opts :: [
           {:level, Logger.level() | nil}
-          | {:formatter, {module(), term()} | nil}
+          | {:formatter, {module(), term()}}
         ]
 
   @doc """