fix for minitest 5.19

minitest/unit is only loaded if MT_COMPAT env var is set: https://github.com/minitest/minitest/blob/6719ad8d8d49779669083f5029ea9a0429c49ff5/History.rdoc#5190--2023-07-26-
qrush · Sep 17, 2023 · fa26cd8 · fa26cd8
1 parent c86bf77
commit fa26cd8
Showing 1 changed file with 5 additions and 1 deletion.
diff --git a/lib/m/frameworks.rb b/lib/m/frameworks.rb
@@ -1,7 +1,11 @@
 module M
   class Frameworks
     def self.minitest_version_major
-      defined?(Minitest) ? Minitest::Unit::VERSION.slice(/\d+/) : nil
+      if defined?(Minitest::Unit::VERSION)
+        Minitest::Unit::VERSION.slice(/\d+/)
+      elsif defined?(Minitest::VERSION)
+        Minitest::VERSION.slice(/\d+/)
+      end
     end
 
     def self.minitest5?