From 1bcabbfa575c47e3687b90f24608dc4455a8ff4f Mon Sep 17 00:00:00 2001
From: Carlo Cabrera <30379873+carlocab@users.noreply.github.com>
Date: Tue, 25 Apr 2023 14:59:08 +0800
Subject: [PATCH] test_runner_formula: fix caching

---
 Library/Homebrew/test_runner_formula.rb | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/Library/Homebrew/test_runner_formula.rb b/Library/Homebrew/test_runner_formula.rb
index b3e2dded65..2fd0e6b8f4 100644
--- a/Library/Homebrew/test_runner_formula.rb
+++ b/Library/Homebrew/test_runner_formula.rb
@@ -91,7 +91,7 @@ class TestRunnerFormula
   def dependents(platform:, arch:, macos_version:)
     cache_key = :"#{platform}_#{arch}_#{macos_version}"
 
-    @dependent_hash.fetch(cache_key) do
+    @dependent_hash[cache_key] ||= begin
       all = eval_all || Homebrew::EnvConfig.eval_all?
       formula_selector, eval_all_env = if all
         [:all, "1"]
@@ -112,5 +112,7 @@ class TestRunnerFormula
         Homebrew::SimulateSystem.clear
       end
     end
+
+    @dependent_hash.fetch(cache_key)
   end
 end