113 lines
2.8 KiB
Lua
113 lines
2.8 KiB
Lua
local constants = require "modules.constants"
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local vec2 = require "modules.vec2"
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describe("vec2:", function()
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it("testing basic operators", function()
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-- add
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assert.is.equal(vec2(1, 1) + vec2(2, 3), vec2(3, 4))
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assert.is.equal(vec2(1, 1) + 5, vec2(6, 6))
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-- sub
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assert.is.equal(vec2(1, 1) - vec2(2, 3), vec2(-1, -2))
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assert.is.equal(vec2(1, 1) + 5, vec2(-4, -4))
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-- mul
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assert.is.equal(vec2(2, 1) * vec2(2, 3), vec2(4, 3))
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assert.has_no.errors(function() return vec2(1,1) * {x=2,y=2} end)
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assert.has_no.errors(function() return 2 * vec2(1,1) end)
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assert.has_no.errors(function() return vec2(1,1) * 2 end)
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-- unm
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assert.is.equal(vec2(1, 1) + -vec2(1, 1), vec2(0, 0))
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-- div
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assert.is.equal(vec2(1, 1) / 2, vec2(0.5, 0.5))
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assert.is.equal(vec2(1, 1) / vec2(2, 2), vec2(0.5, 0.5))
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assert.is.equal(1 / vec2(2, 2), vec2(0.5, 0.5))
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end)
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it("testing value ranges", function()
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-- This makes sure we are initializing reasonably and that
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-- we haven't broken everything with some FFI magic.
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assert.is.equal(vec2(256, 0).x, 256)
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assert.is.equal(vec2(0, 65537).y, 65537)
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assert.is.equal(vec2(-953, 0).x, -953)
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assert.is.equal(vec2(0, 1.2222).y, 1.2222)
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end)
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it("testing comparison operators", function()
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-- eq
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assert.is_true(vec2(5,5) == vec2(5,5))
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-- lt
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assert.is_true(vec2(3,3) < vec2(5,5))
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assert.is_false(vec2(5,5) < vec2(5,5))
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-- le
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assert.is_true(vec2(5,5) <= vec2(5,5))
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assert.is_false(vec2(3,3) >= vec2(5,5))
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end)
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it("testing new", function()
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local v = vec2()
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assert.is_true(v.x == 0)
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assert.is_true(v.y == 0)
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v = vec2{1, 2}
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assert.is_true(v.x == 1)
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assert.is_true(v.y == 2)
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v = vec2(4, 5)
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assert.is_true(v.x == 4)
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assert.is_true(v.y == 5)
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end)
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it("testing tostring", function()
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assert.has_no.errors(function() return tostring(vec2(1,1)) end)
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end)
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it("testing isvector", function()
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assert.is_true(vec2.isvector(vec2()))
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assert.is_true(vec2.isvector(vec2{1,1}))
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assert.is_true(vec2.isvector{x=1, y=2})
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end)
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it("testing clone", function()
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local v = vec2(1,1)
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local c = v:clone()
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c.x = 2
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assert.is_not.equal(v, c)
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end)
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it("testing len and normalize", function()
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assert.is.equal(vec2(1,0):len(), 1)
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assert.is_true(vec2(5,-10):normalize():len() - 1 < constants.FLT_EPSILON)
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end)
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it("testing len2", function()
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assert.is.equal(vec2(1,0):len2(), 1)
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assert.is.equal(vec2(2,0):len2(), 4)
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end)
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it("testing lerp", function()
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assert.is.equal(vec2(0, 0):lerp(vec2(1, 1), 0.5), vec2(0.5, 0.5))
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end)
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describe("vec2 pending tests", function()
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pending "rotate"
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pending "dot"
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pending "cross"
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pending "trim"
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pending "angle_to"
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pending "angle_between"
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pending "mirror_on"
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pending "orientation_to_direction"
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pending "project_from"
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pending "project_on"
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pending "perpendicular"
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pending "rotate"
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pending "dist"
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pending "dist2"
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end)
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end)
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