magit: minitest.txt

modified   lib/minitest.rb
@@ -185,6 +185,10 @@ module Minitest
         options[:show_skips] = true
       end
 
+      opts.on "--hard-mode", "Run tests in 'hard mode', aka fully random." do
+        options[:hard_mode] = true
+      end
+
       opts.on "-n", "--name PATTERN", "Filter run on /regexp/ or string." do |a|
         options[:filter] = a # TODO: rename include?
       end
@@ -337,7 +341,13 @@ module Minitest
     # the serial tests won't lock around Reporter#record. Run the serial tests
     # first, so that after they complete, the parallel tests will lock when
     # recording results.
-    serial.map { |suite| suite.run_suite reporter, options } +
+    if options[:hard_mode] then
+      serial.flat_map { |suite| suite.runnable_methods.map { |m| [suite, m] } }
+        .shuffle
+        .map { |(suite, method_name)| suite.run suite, method_name, reporter }
+    else
+      serial.map { |suite| suite.run_suite reporter, options }
+    end +
       parallel.map { |suite| suite.run_suite reporter, options }
   end