mirror of
https://github.com/sbrl/Minetest-WorldEditAdditions.git
synced 2024-11-22 23:42:59 +00:00
81 lines
1.7 KiB
Lua
81 lines
1.7 KiB
Lua
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local Vector3 = require("worldeditadditions.utils.vector3")
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describe("Vector3.subtract", function()
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it("should subtract 2 positive vectors", function()
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local a = Vector3.new(3, 4, 5)
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local b = Vector3.new(1, 1, 1)
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assert.are.same(
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a:subtract(b),
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Vector3.new(2, 3, 4)
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)
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end)
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it("should work with the sub alias", function()
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local a = Vector3.new(3, 4, 5)
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local b = Vector3.new(1, 1, 1)
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assert.are.same(
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a:sub(b),
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Vector3.new(2, 3, 4)
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)
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end)
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it("should work with scalar a", function()
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local a = 2
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local b = Vector3.new(6, 7, 8)
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assert.are.same(
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a - b,
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Vector3.new(4, 5, 6)
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)
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end)
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it("should work with scalar b", function()
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local a = Vector3.new(6, 7, 8)
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local b = 2
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assert.are.same(
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a - b,
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Vector3.new(4, 5, 6)
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)
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end)
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it("should support the subtract operator", function()
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local a = Vector3.new(3, 4, 5)
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local b = Vector3.new(1, 1, 1)
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assert.are.same(
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a - b,
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Vector3.new(2, 3, 4)
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)
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end)
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it("should handle negative b", function()
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local a = Vector3.new(3, 4, 5)
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local b = Vector3.new(-1, -1, -1)
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assert.are.same(
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a - b,
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Vector3.new(4, 5, 6)
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)
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end)
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it("should handle negative a", function()
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local a = Vector3.new(-3, -4, -5)
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local b = Vector3.new(1, 1, 1)
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assert.are.same(
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a - b,
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Vector3.new(-4, -5, -6)
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)
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end)
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it("should handle negative a and b", function()
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local a = Vector3.new(-3, -4, -5)
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local b = Vector3.new(-1, -1, -1)
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assert.are.same(
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a - b,
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Vector3.new(-2, -3, -4)
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)
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end)
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it("should return a new Vector3 instance", function()
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local a = Vector3.new(3, 4, 5)
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local b = Vector3.new(1, 1, 1)
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local result = a - b
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assert.are.same(
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result,
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Vector3.new(2, 3, 4)
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)
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assert.are_not.equal(result, a)
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assert.are_not.equal(result, b)
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end)
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end)
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