https://git.ruby-lang.org/ruby.git/commit/?id=116c632095

From 116c6320956ce80efcb1db849a190ebd7f8c8ad3 Mon Sep 17 00:00:00 2001
From: Koichi Sasada <ko1@a...>
Date: Thu, 27 Feb 2020 02:26:14 +0900
Subject: don't ignore `--seed` option

`--seed N` option is just ignored so respect this option.
[Feature #16655]

Also making "Run options" display pretty.

diff --git a/tool/lib/test/unit.rb b/tool/lib/test/unit.rb
index 42d1d83..ad053cf 100644
--- a/tool/lib/test/unit.rb
+++ b/tool/lib/test/unit.rb
@@ -64,7 +64,18 @@ module Test https://github.com/ruby/ruby/blob/trunk/tool/lib/test/unit.rb#L64
         args = @init_hook.call(args, options) if @init_hook
         non_options(args, options)
         @run_options = orig_args
-        @help = orig_args.map { |s| s =~ /[\s|&<>$()]/ ? s.inspect : s }.join " "
+
+        if seed = options[:seed]
+          srand(seed)
+        else
+          seed = options[:seed] = srand % 100_000
+          srand(seed)
+          orig_args << "--seed=#{seed}"
+        end
+
+        @help = "\n" + orig_args.map { |s|
+          "  " + (s =~ /[\s|&<>$()]/ ? s.inspect : s)
+        }.join("\n")
         @options = options
       end
 
@@ -79,7 +90,7 @@ module Test https://github.com/ruby/ruby/blob/trunk/tool/lib/test/unit.rb#L90
         end
 
         opts.on '-s', '--seed SEED', Integer, "Sets random seed" do |m|
-          options[:seed] = m
+          options[:seed] = m.to_i
         end
 
         opts.on '-v', '--verbose', "Verbose. Show progress processing files." do
-- 
cgit v0.10.2


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