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-rw-r--r--mrbgems/mruby-bin-mirb/bintest/mirb.rb7
1 files changed, 7 insertions, 0 deletions
diff --git a/mrbgems/mruby-bin-mirb/bintest/mirb.rb b/mrbgems/mruby-bin-mirb/bintest/mirb.rb
index ed53321bd..a1a0651b4 100644
--- a/mrbgems/mruby-bin-mirb/bintest/mirb.rb
+++ b/mrbgems/mruby-bin-mirb/bintest/mirb.rb
@@ -10,3 +10,10 @@ assert('regression for #1563') do
o, s = Open3.capture2('bin/mirb', :stdin_data => "a=1;b=2;c=3\nb\nc")
assert_true o.include?('=> 3')
end
+
+assert('mirb -d option') do
+ o, s = Open3.capture2('bin/mirb', :stdin_data => "p $DEBUG\n")
+ assert_true o.include?('=> false')
+ o, s = Open3.capture2('bin/mirb -d', :stdin_data => "p $DEBUG\n")
+ assert_true o.include?('=> true')
+end