Add test for setting current working directory.

Author: ioquatix

test/async/container/.cwd.rb

@@ -0,0 +1,23 @@
+#!/usr/bin/env ruby
+# frozen_string_literal: true
+
+# Released under the MIT License.
+# Copyright, 2020-2024, by Samuel Williams.
+
+require_relative '../../../lib/async/container/controller'
+
+$stdout.sync = true
+
+class Pwd < Async::Container::Controller
+	def setup(container)
+		container.spawn do |instance|
+			instance.ready!
+			
+			instance.exec("pwd", chdir: "/")
+		end
+	end
+end
+
+controller = Pwd.new
+
+controller.run

test/async/container/controller.rb

@@ -206,4 +206,19 @@ def after(error = nil)
 			expect(input.read).to be == 'T'
 		end
 	end
+	
+	with 'working directory' do
+		let(:controller_path) {File.expand_path(".cwd.rb", __dir__)}
+		
+		it "can change working directory" do
+			pipe = IO.pipe
+			
+			pid = Process.spawn("bundle", "exec", controller_path, out: pipe.last)
+			pipe.last.close
+			
+			expect(pipe.first.gets(chomp: true)).to be == "/"
+		ensure
+			Process.kill(:INT, pid) if pid
+		end
+	end
 end