File

spec/util_paths_spec.lua @ 11665:148075532021

net.server_epoll: Prevent stack overflow of opportunistic writes net.http.files serving a big enough file on a fast enough connection with opportunistic_writes enabled could trigger a stack overflow through repeatedly serving more data that immediately gets sent, draining the buffer and triggering more data to be sent. This also blocked the server on a single task until completion or an error. This change prevents nested opportunistic writes, which should prevent the stack overflow, at the cost of reduced download speed, but this is unlikely to be noticeable outside of Gbit networks. Speed at the cost of blocking other processing is not worth it, especially with the risk of stack overflow.
author Kim Alvefur <zash@zash.se>
date Sun, 11 Jul 2021 09:39:21 +0200
parent 11182:bab8d01e139a
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local sep = package.config:match("(.)\n");
describe("util.paths", function ()
	local paths = require "util.paths";
	describe("#join()", function ()
		it("returns single component as-is", function ()
			assert.equal("foo", paths.join("foo"));
		end);
		it("joins paths", function ()
			assert.equal("foo"..sep.."bar", paths.join("foo", "bar"))
		end);
		it("joins longer paths", function ()
			assert.equal("foo"..sep.."bar"..sep.."baz", paths.join("foo", "bar", "baz"))
		end);
		it("joins even longer paths", function ()
			assert.equal("foo"..sep.."bar"..sep.."baz"..sep.."moo", paths.join("foo", "bar", "baz", "moo"))
		end);
	end)

	describe("#glob_to_pattern()", function ()
		it("works", function ()
			assert.equal("^thing.%..*$", paths.glob_to_pattern("thing?.*"))
		end);
	end)

	describe("#resolve_relative_path()", function ()
		it("returns absolute paths as-is", function ()
			if sep == "/" then
				assert.equal("/tmp/path", paths.resolve_relative_path("/run", "/tmp/path"));
			elseif sep == "\\" then
				assert.equal("C:\\Program Files", paths.resolve_relative_path("A:\\", "C:\\Program Files"));
			end
		end);
		it("resolves relative paths", function ()
			if sep == "/" then
				assert.equal("/run/path", paths.resolve_relative_path("/run", "path"));
			end
		end);
	end)
end)