1 files changed, 37 insertions, 0 deletions
diff --git a/spec/ruby/library/socket/socket/accept_nonblock_spec.rb b/spec/ruby/library/socket/socket/accept_nonblock_spec.rb
new file mode 100644
index 0000000000..be0bbf5f03
--- /dev/null
+++ b/spec/ruby/library/socket/socket/accept_nonblock_spec.rb
@@ -0,0 +1,37 @@
+require File.expand_path('../../../../spec_helper', __FILE__)
+require File.expand_path('../../fixtures/classes', __FILE__)
+
+require 'socket'
+
+describe "Socket#accept_nonblock" do
+  before :each do
+    @hostname = "127.0.0.1"
+    @addr = Socket.sockaddr_in(0, @hostname)
+    @socket = Socket.new(Socket::AF_INET, Socket::SOCK_STREAM, 0)
+    @socket.bind(@addr)
+    @socket.listen(1)
+  end
+
+  after :each do
+    @socket.close
+  end
+
+  it "raises IO::WaitReadable if the connection is not accepted yet" do
+    lambda {
+      @socket.accept_nonblock
+    }.should raise_error(IO::WaitReadable) { |e|
+      platform_is_not :windows do
+        e.should be_kind_of(Errno::EAGAIN)
+      end
+      platform_is :windows do
+        e.should be_kind_of(Errno::EWOULDBLOCK)
+      end
+    }
+  end
+
+  ruby_version_is '2.3' do
+    it 'returns :wait_readable in exceptionless mode' do
+      @socket.accept_nonblock(exception: false).should == :wait_readable
+    end
+  end
+end