File

spec/util_human_io_spec.lua @ 12446:e54b8a5e35ad 0.12

util.random: Test whether util.crand works before using it (fix #1734) util.crand can be configured at compile time to use the Linux getrandom() system call, available from Linux 3.17, but it is still possible to load it with an older kernel lacking that system call, where attempting to use it throws an ENOSYS error. By testing for this on load we can fall back to /dev/urandom in this case.
author Kim Alvefur <zash@zash.se>
date Sat, 02 Apr 2022 16:33:27 +0200
parent 11896:93e9f7ae2f9b
child 13054:f4d7fe919969
line wrap: on
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describe("util.human.io", function ()
	local human_io
	setup(function ()
		human_io = require "util.human.io";
	end);
	describe("table", function ()

		it("alignment works", function ()
			local row = human_io.table({
					{
						width = 3,
						align = "right"
					},
					{
						width = 3,
					},
				});

			assert.equal("  1 | .  ", row({ 1, "." }));
			assert.equal(" 10 | .. ", row({ 10, ".." }));
			assert.equal("100 | ...", row({ 100, "..." }));
			assert.equal("10… | ..…", row({ 1000, "...." }));

		end);
	end);

	describe("ellipsis", function()
		it("works", function()
			assert.equal("…", human_io.ellipsis("abc", 1));
			assert.equal("a…", human_io.ellipsis("abc", 2));
			assert.equal("abc", human_io.ellipsis("abc", 3));

			assert.equal("…", human_io.ellipsis("räksmörgås", 1));
			assert.equal("r…", human_io.ellipsis("räksmörgås", 2));
			assert.equal("rä…", human_io.ellipsis("räksmörgås", 3));
			assert.equal("räk…", human_io.ellipsis("räksmörgås", 4));
			assert.equal("räks…", human_io.ellipsis("räksmörgås", 5));
			assert.equal("räksm…", human_io.ellipsis("räksmörgås", 6));
			assert.equal("räksmö…", human_io.ellipsis("räksmörgås", 7));
			assert.equal("räksmör…", human_io.ellipsis("räksmörgås", 8));
			assert.equal("räksmörg…", human_io.ellipsis("räksmörgås", 9));
			assert.equal("räksmörgås", human_io.ellipsis("räksmörgås", 10));
		end);
	end);
end);