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spec/util_format_spec.lua @ 11694:d6be4dda1f60
net.server_epoll: Set minimum wait time to 1ms, matching epoll
A timeout value less than 0.001 gets turned into zero on the C side, so
epoll_wait() returns instantly and essentially busy-loops up to 1ms,
e.g. when a timer event ends up scheduled (0, 0.001)ms into the future.
Unsure if this has much effect in practice, but it may waste a small
amount of CPU time. How much would depend on how often this ends up
happening and how fast the CPU gets trough main loop iterations.
author | Kim Alvefur <zash@zash.se> |
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date | Thu, 15 Jul 2021 01:38:44 +0200 |
parent | 11644:fc1b8fe94d04 |
child | 12031:87bc26f23d9b |
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local format = require "util.format".format; describe("util.format", function() describe("#format()", function() it("should work", function() assert.equal("hello", format("%s", "hello")); assert.equal("(nil)", format("%s")); assert.equal("(nil)", format("%d")); assert.equal("(nil)", format("%q")); assert.equal(" [(nil)]", format("", nil)); assert.equal("true", format("%s", true)); assert.equal("[true]", format("%d", true)); assert.equal("% [true]", format("%%", true)); assert.equal("{ }", format("%q", { })); assert.equal("[1.5]", format("%d", 1.5)); assert.equal("[7.3786976294838e+19]", format("%d", 73786976294838206464)); end); it("escapes ascii control stuff", function () assert.equal("␁", format("%s", "\1")); end); end); end);