Add tests for Stream#close_read.

Author: ioquatix

lib/protocol/http/body/stream.rb

@@ -148,6 +148,8 @@ def flush
 
 				def close_read
 					@closed_read = true
+					@buffer = nil
+					
 					@input&.close
 					@input = nil
 				end

test/protocol/http/body/stream.rb

@@ -11,6 +11,18 @@
 	let(:output) {Protocol::HTTP::Body::Buffered.new}
 	let(:stream) {subject.new(input, output)}
 
+	with 'no input' do
+		let(:input) {nil}
+		
+		it "should be empty" do
+			expect(stream).to be(:empty?)
+		end
+		
+		it "should read nothing" do
+			expect(stream.read).to be == ""
+		end
+	end
+	
 	with '#empty?' do
 		it "should be empty" do
 			expect(stream).to be(:empty?)
@@ -113,8 +125,9 @@
 
 	with '#close_read' do
 		it "should close the input" do
+			stream.read(1)
 			stream.close_read
-			expect{stream.read(5)}.to raise_exception(IOError)
+			expect{stream.read(1)}.to raise_exception(IOError)
 		end
 	end