File

spec/util_interpolation_spec.lua @ 13039:9ddb344b9fab

util.human.io: Allow defining per column ellipsis function As an alternative to doing it in the mapper function. Could be useful in cases where one may want to put the ellipsis in the middle or beginning instead of the start.
author Kim Alvefur <zash@zash.se>
date Fri, 07 Apr 2023 13:00:58 +0200
parent 11308:5d4d90d1eabb
line wrap: on
line source

local template = [[
{greet!?Hi}, {name?world}!
]];
local expect1 = [[
Hello, WORLD!
]];
local expect2 = [[
Hello, world!
]];
local expect3 = [[
Hi, YOU!
]];
local template_array = [[
{foo#{idx}. {item}
}]]
local expect_array = [[
1. HELLO
2. WORLD
]]
local template_func_pipe = [[
{foo|sort#{idx}. {item}
}]]
local expect_func_pipe = [[
1. A
2. B
3. C
4. D
]]
local template_map = [[
{foo%{idx}: {item!}
}]]
local expect_map = [[
FOO: bar
]]
local template_not = [[
{thing~Thing is falsy}{thing&Thing is truthy}
]]
local expect_not_true = [[
Thing is truthy
]]
local expect_not_nil = [[
Thing is falsy
]]
local expect_not_false = [[
Thing is falsy
]]
describe("util.interpolation", function ()
	it("renders", function ()
		local render = require "util.interpolation".new("%b{}", string.upper, { sort = function (t) table.sort(t) return t end });
		assert.equal(expect1, render(template, { greet = "Hello", name = "world" }));
		assert.equal(expect2, render(template, { greet = "Hello" }));
		assert.equal(expect3, render(template, { name = "you" }));
		assert.equal(expect_array, render(template_array, { foo = { "Hello", "World" } }));
		assert.equal(expect_func_pipe, render(template_func_pipe, { foo = { "c", "a", "d", "b", } }));
		-- assert.equal("", render(template_func_pipe, { foo = nil })); -- FIXME
		assert.equal(expect_map, render(template_map, { foo = { foo = "bar" } }));
		assert.equal(expect_not_true, render(template_not, { thing = true }));
		assert.equal(expect_not_nil, render(template_not, { thing = nil }));
		assert.equal(expect_not_false, render(template_not, { thing = false }));
	end);
	it("fixes #1623", function ()
		local render = require "util.interpolation".new("%b{}", string.upper, { x = string.lower });
		assert.equal("", render("{foo?}", {  }))
		assert.equal("", render("{foo|x?}", {  }))
	end);
end);