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

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local Vector3 = require("worldeditadditions.utils.vector3")
describe("Vector3.limit_to", function()
it("should limit_to a positive vector", function()
local a = Vector3.new(801980510, 801980510, 801980510)
assert.are.same(
Vector3.new(80198051, 80198051, 80198051),
a:limit_to(138907099)
)
end)
it("should limit_to a negative vector", function()
local a = Vector3.new(-1897506260, -1897506260, -1897506260)
assert.are.same(
Vector3.new(-189750626, -189750626, -189750626),
a:limit_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:limit_to(138907099)
)
end)
it("should not change anything if the length is smaller", function()
local a = Vector3.new(3, 4, 5)
assert.are.same(
Vector3.new(3, 4, 5),
a:limit_to(100)
)
end)
it("should return a new Vector3 instance", function()
local a = Vector3.new(801980510, 801980510, 801980510)
local result = a:limit_to(138907099)
assert.are.same(
Vector3.new(80198051, 80198051, 80198051),
result
)
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a.x = 4
assert.are.same(Vector3.new(4, 801980510, 801980510), a)
assert.are.same(Vector3.new(80198051, 80198051, 80198051), result)
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end)
it("should return a new Vector3 instance if the length is smaller", function()
local a = Vector3.new(3, 4, 5)
local result = a:limit_to(101)
assert.are.same(
Vector3.new(3, 4, 5),
result
)
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a.x = 40
assert.are.same(Vector3.new(40, 4, 5), a)
assert.are.same(Vector3.new(3, 4, 5), result)
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end)
end)