There's an arity error in the drb tests when running on JRuby 10 (have not tested 9.4):
$ bundle exec ruby -Ilib:test/lib test/drb/test_drb.rb -n test_bug16634
Loaded suite test/drb/test_drb
Started
E
===========================================================================================================================================================================================================================================================================================================================================
Error: test_bug16634(DRbTests::TestBug16634): ArgumentError: wrong number of arguments (given 1, expected 0)
(druby://localhost:51803) /Users/headius/work/drb/test/drb/ut_drb.rb:151:in 'keyword_test1'
(druby://localhost:51803) /Users/headius/work/drb/lib/drb/drb.rb:1713:in 'perform_without_block'
(druby://localhost:51803) /Users/headius/work/drb/lib/drb/drb.rb:1669:in 'perform'
(druby://localhost:51803) /Users/headius/work/drb/lib/drb/drb.rb:1758:in 'block in main_loop'
(druby://localhost:51803) org/jruby/RubyKernel.java:1658:in 'loop'
(druby://localhost:51803) /Users/headius/work/drb/lib/drb/drb.rb:1754:in 'block in main_loop'
test/drb/test_drb.rb:364:in 'test_bug16634'
361: end
362:
363: def test_bug16634
=> 364: assert_equal(42, @there.keyword_test1(a: 42))
365: assert_equal("default", @there.keyword_test2)
366: assert_equal(42, @there.keyword_test2(b: 42))
367: assert_equal({:a=>42, :b=>42}, @there.keyword_test3(a: 42, b: 42))
I have not investigated this yet but it may be a method generated by drb as a remote binding, and that could be a clue about why it sees this as a mismatched arity.
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There's an arity error in the drb tests when running on JRuby 10 (have not tested 9.4):
$ bundle exec ruby -Ilib:test/lib test/drb/test_drb.rb -n test_bug16634 Loaded suite test/drb/test_drb Started E =========================================================================================================================================================================================================================================================================================================================================== Error: test_bug16634(DRbTests::TestBug16634): ArgumentError: wrong number of arguments (given 1, expected 0) (druby://localhost:51803) /Users/headius/work/drb/test/drb/ut_drb.rb:151:in 'keyword_test1' (druby://localhost:51803) /Users/headius/work/drb/lib/drb/drb.rb:1713:in 'perform_without_block' (druby://localhost:51803) /Users/headius/work/drb/lib/drb/drb.rb:1669:in 'perform' (druby://localhost:51803) /Users/headius/work/drb/lib/drb/drb.rb:1758:in 'block in main_loop' (druby://localhost:51803) org/jruby/RubyKernel.java:1658:in 'loop' (druby://localhost:51803) /Users/headius/work/drb/lib/drb/drb.rb:1754:in 'block in main_loop' test/drb/test_drb.rb:364:in 'test_bug16634' 361: end 362: 363: def test_bug16634 => 364: assert_equal(42, @there.keyword_test1(a: 42)) 365: assert_equal("default", @there.keyword_test2) 366: assert_equal(42, @there.keyword_test2(b: 42)) 367: assert_equal({:a=>42, :b=>42}, @there.keyword_test3(a: 42, b: 42))I have not investigated this yet but it may be a method generated by drb as a remote binding, and that could be a clue about why it sees this as a mismatched arity.