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-rw-r--r--spec/ruby/core/mutex/sleep_spec.rb2
1 files changed, 1 insertions, 1 deletions
diff --git a/spec/ruby/core/mutex/sleep_spec.rb b/spec/ruby/core/mutex/sleep_spec.rb
index 6638f5a5a2..9832e3125e 100644
--- a/spec/ruby/core/mutex/sleep_spec.rb
+++ b/spec/ruby/core/mutex/sleep_spec.rb
@@ -97,7 +97,7 @@ describe "Mutex#sleep" do
m.lock
times.each do |time|
# just testing that sleep completes
- m.sleep(time).should_not == nil
+ -> {m.sleep(time)}.should_not raise_error
end
end
end