Add code coverage for Async::Container::Channel.

Author: ioquatix

test/async/container/channel.rb

@@ -0,0 +1,32 @@
+# frozen_string_literal: true
+
+# Released under the MIT License.
+# Copyright, 2025, by Samuel Williams.
+
+require "async/container/channel"
+
+describe Async::Container::Channel do
+	let(:channel) {subject.new}
+	
+	after do
+		@channel&.close
+	end
+	
+	it "can send and receive" do
+		channel.out.puts "Hello, World!"
+		
+		expect(channel.in.gets).to be == "Hello, World!\n"
+	end
+	
+	it "can send and receive JSON" do
+		channel.out.puts JSON.dump({hello: "world"})
+		
+		expect(channel.receive).to be == {hello: "world"}
+	end
+	
+	it "can receive invalid JSON" do
+		channel.out.puts "Hello, World!"
+		
+		expect(channel.receive).to be == {line: "Hello, World!\n"}
+	end
+end