local h = require("harness")
local t = h.module("require")

t.check("a module runs once, and every require gets it", function()
    local first = require("lib/counter")
    assert(require("./lib/counter") == first, "a second copy")
    assert(first.loads() == 1, "it ran " .. first.loads() .. " times")
end)
t.check("a module that requires itself is an error", function()
    local why = h.refused(require, "lib/cycle_a")
    assert(why:find("requires itself", 1, true), why)
end)
t.check("a module that is not there is an error", function() h.refused(require, "lib/missing") end)
t.check("a module outside the package is refused", function()
    h.refused(require, "../manifest")
    h.refused(require, "C:/Windows/win")
end)