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-rw-r--r--spec/ruby/library/monitor/try_enter_spec.rb39
1 files changed, 39 insertions, 0 deletions
diff --git a/spec/ruby/library/monitor/try_enter_spec.rb b/spec/ruby/library/monitor/try_enter_spec.rb
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+++ b/spec/ruby/library/monitor/try_enter_spec.rb
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+require_relative '../../spec_helper'
+require 'monitor'
+
+describe "Monitor#try_enter" do
+ it "will acquire a monitor not held by another thread" do
+ monitor = Monitor.new
+ 10.times do
+
+ thread = Thread.new do
+ val = monitor.try_enter
+ monitor.exit if val
+ val
+ end
+
+ thread.join
+ thread.value.should == true
+ end
+ end
+
+ it "will not acquire a monitor already held by another thread" do
+ monitor = Monitor.new
+ 10.times do
+ monitor.enter
+ begin
+ thread = Thread.new do
+ val = monitor.try_enter
+ monitor.exit if val
+ val
+ end
+
+ thread.join
+ thread.value.should == false
+ ensure
+ monitor.exit
+ end
+ monitor.mon_locked?.should == false
+ end
+ end
+end