1 files changed, 48 insertions, 0 deletions
diff --git a/spec/ruby/library/socket/basicsocket/close_write_spec.rb b/spec/ruby/library/socket/basicsocket/close_write_spec.rb
new file mode 100644
index 0000000000..232cfbb7c6
--- /dev/null
+++ b/spec/ruby/library/socket/basicsocket/close_write_spec.rb
@@ -0,0 +1,48 @@
+require_relative '../spec_helper'
+require_relative '../fixtures/classes'
+
+describe "Socket::BasicSocket#close_write" do
+  before :each do
+    @server = TCPServer.new(0)
+  end
+
+  after :each do
+    @server.close unless @server.closed?
+  end
+
+  it "closes the writing end of the socket" do
+    @server.close_write
+    -> { @server.write("foo") }.should raise_error(IOError)
+  end
+
+  it 'does not raise when called on a socket already closed for writing' do
+    @server.close_write
+    @server.close_write
+    -> { @server.write("foo") }.should raise_error(IOError)
+  end
+
+  it 'does not fully close the socket' do
+    @server.close_write
+    @server.closed?.should be_false
+  end
+
+  it "does not prevent reading" do
+    @server.close_write
+    @server.read(0).should == ""
+  end
+
+  it "fully closes the socket if it was already closed for reading" do
+    @server.close_read
+    @server.close_write
+    @server.closed?.should be_true
+  end
+
+  it 'raises IOError when called on a fully closed socket' do
+    @server.close
+    -> { @server.close_write }.should raise_error(IOError)
+  end
+
+  it "returns nil" do
+    @server.close_write.should be_nil
+  end
+end