test(minitest): avoid installing at_exit

KnapsackPro · Jan 8, 2024 · 2f3779f · 2f3779f
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diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Changelog
 
+### Unreleased (patch)
+
+* test(minitest): avoid installing `at_exit` (that would result in an empty run of Minitest after Knapsack Pro is finished)
+
 ### 6.0.3
 
 * fix(Turnip): make sure `.feature` files are recorded

diff --git a/lib/knapsack_pro/runners/queue/minitest_runner.rb b/lib/knapsack_pro/runners/queue/minitest_runner.rb
@@ -7,6 +7,10 @@ class MinitestRunner < BaseRunner
         def self.run(args)
           require 'minitest'
 
+          # Avoid installing `at_exit` since we are calling `Minitest.run` ourselves.
+          # Without this, Minitest would run again (autorun) after `Minitest.run`.
+          ::Minitest.class_variable_set('@@installed_at_exit', true)
+
           ENV['KNAPSACK_PRO_TEST_SUITE_TOKEN'] = KnapsackPro::Config::Env.test_suite_token_minitest
           ENV['KNAPSACK_PRO_QUEUE_RECORDING_ENABLED'] = 'true'
           ENV['KNAPSACK_PRO_QUEUE_ID'] = KnapsackPro::Config::EnvGenerator.set_queue_id