Minetest-WorldEditAdditions/.tests/Vector3/set_to.test.lua

52 lines
1.6 KiB
Lua

local Vector3 = require("worldeditadditions.utils.vector3")
describe("Vector3.set_to", function()
it("should set_to a positive vector", function()
local a = Vector3.new(801980510, 801980510, 801980510)
assert.are.same(
Vector3.new(80198051, 80198051, 80198051),
a:set_to(138907099)
)
end)
it("should set_to a negative vector", function()
local a = Vector3.new(-1897506260, -1897506260, -1897506260)
assert.are.same(
Vector3.new(-189750626, -189750626, -189750626),
a:set_to(328657725)
)
end)
it("should work if the length is borderline", function()
local a = Vector3.new(80198051, 80198051, 80198051)
assert.are.same(
Vector3.new(80198051, 80198051, 80198051),
a:set_to(138907099)
)
end)
it("should work if the length is smaller", function()
local a = Vector3.new(80198051, 80198051, 80198051)
assert.are.same(
Vector3.new(109552575, 109552575, 109552575),
a:set_to(189750626):floor() -- Hack to ignore flating-point errors. In theory we should really use epsilon here instead
)
end)
it("should return a new Vector3 instance", function()
local a = Vector3.new(801980510, 801980510, 801980510)
local result = a:set_to(138907099)
assert.are.same(
Vector3.new(80198051, 80198051, 80198051),
result
)
assert.are_not.equal(result, a)
end)
it("should return a new Vector3 instance if the length is smaller", function()
local a = Vector3.new(80198051, 80198051, 80198051)
local result = a:set_to(189750626):floor()
assert.are.same(
Vector3.new(109552575, 109552575, 109552575),
result
)
assert.are_not.equal(result, a)
end)
end)