util.human.io: Add brief test of table generation

spec/util_human_io_spec.lua

@@ -0,0 +1,29 @@
+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);
+end);
+
+
+