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spec/util_random_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 | 8450:3a9a3d90c44c |
rev | line source |
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8236
4878e4159e12
Port tests to the `busted` test runner
Waqas Hussain <waqas20@gmail.com>
parents:
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changeset
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1 |
4878e4159e12
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parents:
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2 local random = require "util.random"; |
4878e4159e12
Port tests to the `busted` test runner
Waqas Hussain <waqas20@gmail.com>
parents:
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3 |
4878e4159e12
Port tests to the `busted` test runner
Waqas Hussain <waqas20@gmail.com>
parents:
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4 describe("util.random", function() |
4878e4159e12
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Waqas Hussain <waqas20@gmail.com>
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5 describe("#bytes()", function() |
4878e4159e12
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Waqas Hussain <waqas20@gmail.com>
parents:
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6 it("should return a string", function() |
4878e4159e12
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parents:
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7 assert.is_string(random.bytes(16)); |
4878e4159e12
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Waqas Hussain <waqas20@gmail.com>
parents:
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8 end); |
4878e4159e12
Port tests to the `busted` test runner
Waqas Hussain <waqas20@gmail.com>
parents:
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9 |
4878e4159e12
Port tests to the `busted` test runner
Waqas Hussain <waqas20@gmail.com>
parents:
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changeset
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10 it("should return the requested number of bytes", function() |
4878e4159e12
Port tests to the `busted` test runner
Waqas Hussain <waqas20@gmail.com>
parents:
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changeset
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11 -- Makes no attempt at testing how random the bytes are, |
4878e4159e12
Port tests to the `busted` test runner
Waqas Hussain <waqas20@gmail.com>
parents:
diff
changeset
|
12 -- just that it returns the number of bytes requested |
4878e4159e12
Port tests to the `busted` test runner
Waqas Hussain <waqas20@gmail.com>
parents:
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changeset
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13 |
8450
3a9a3d90c44c
spec/util.random: Check a larger range of sizes
Kim Alvefur <zash@zash.se>
parents:
8236
diff
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14 for i = 1, 20 do |
3a9a3d90c44c
spec/util.random: Check a larger range of sizes
Kim Alvefur <zash@zash.se>
parents:
8236
diff
changeset
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15 assert.are.equal(2^i, #random.bytes(2^i)); |
8236
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Waqas Hussain <waqas20@gmail.com>
parents:
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16 end |
4878e4159e12
Port tests to the `busted` test runner
Waqas Hussain <waqas20@gmail.com>
parents:
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17 end); |
4878e4159e12
Port tests to the `busted` test runner
Waqas Hussain <waqas20@gmail.com>
parents:
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changeset
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18 end); |
4878e4159e12
Port tests to the `busted` test runner
Waqas Hussain <waqas20@gmail.com>
parents:
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changeset
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19 end); |