diff options
author | chai <chaifix@163.com> | 2021-11-15 11:54:17 +0800 |
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committer | chai <chaifix@163.com> | 2021-11-15 11:54:17 +0800 |
commit | 30f2f46474bf4eda5f10d4c64a07cde01d469f66 (patch) | |
tree | 6ff2ed3262037b3c9bae2d2b9059a1d65773f31c /Data/DefaultContent/Libraries/middleclass/spec/metamethods_spec.lua | |
parent | 4c36bed53fe63ae6056730b3ecad2573f03d88f8 (diff) |
*rename DefaultContent -> BuiltIn
Diffstat (limited to 'Data/DefaultContent/Libraries/middleclass/spec/metamethods_spec.lua')
-rw-r--r-- | Data/DefaultContent/Libraries/middleclass/spec/metamethods_spec.lua | 317 |
1 files changed, 0 insertions, 317 deletions
diff --git a/Data/DefaultContent/Libraries/middleclass/spec/metamethods_spec.lua b/Data/DefaultContent/Libraries/middleclass/spec/metamethods_spec.lua deleted file mode 100644 index 73bf883..0000000 --- a/Data/DefaultContent/Libraries/middleclass/spec/metamethods_spec.lua +++ /dev/null @@ -1,317 +0,0 @@ -local class = require 'middleclass' - -local function is_lua_5_2_compatible() - return type(rawlen) == 'function' -end - -local function is_lua_5_3_compatible() - return type(string.unpack) == 'function' -end - -if is_lua_5_2_compatible() then - require 'spec/metamethods_lua_5_2' -end - -if is_lua_5_3_compatible() then - require 'spec.metamethods_lua_5_3' -end - -describe('Metamethods', function() - describe('Custom Metamethods', function() - local Vector, v, w - before_each(function() - Vector= class('Vector') - function Vector.initialize(a,x,y,z) a.x, a.y, a.z = x,y,z end - function Vector.__tostring(a) return a.class.name .. '[' .. a.x .. ',' .. a.y .. ',' .. a.z .. ']' end - function Vector.__eq(a,b) return a.x==b.x and a.y==b.y and a.z==b.z end - function Vector.__lt(a,b) return a() < b() end - function Vector.__le(a,b) return a() <= b() end - function Vector.__add(a,b) return a.class:new(a.x+b.x, a.y+b.y ,a.z+b.z) end - function Vector.__sub(a,b) return a.class:new(a.x-b.x, a.y-b.y, a.z-b.z) end - function Vector.__div(a,s) return a.class:new(a.x/s, a.y/s, a.z/s) end - function Vector.__unm(a) return a.class:new(-a.x, -a.y, -a.z) end - function Vector.__concat(a,b) return a.x*b.x+a.y*b.y+a.z*b.z end - function Vector.__call(a) return math.sqrt(a.x*a.x+a.y*a.y+a.z*a.z) end - function Vector.__pow(a,b) - return a.class:new(a.y*b.z-a.z*b.y,a.z*b.x-a.x*b.z,a.x*b.y-a.y*b.x) - end - function Vector.__mul(a,b) - if type(b)=="number" then return a.class:new(a.x*b, a.y*b, a.z*b) end - if type(a)=="number" then return b.class:new(a*b.x, a*b.y, a*b.z) end - end - Vector.__metatable = "metatable of a vector" - Vector.__mode = "k" - - v = Vector:new(1,2,3) - w = Vector:new(2,4,6) - end) - - it('implements __tostring', function() - assert.equal(tostring(v), "Vector[1,2,3]") - end) - - it('implements __eq', function() - assert.equal(v, v) - end) - - it('implements __lt', function() - assert.is_true(v < w) - end) - - it('implements __le', function() - assert.is_true(v <= w) - end) - - it('implements __add', function() - assert.equal(v+w, Vector(3,6,9)) - end) - - it('implements __sub', function() - assert.equal(w-v, Vector(1,2,3)) - end) - - it('implements __div', function() - assert.equal(w/2, Vector(1,2,3)) - end) - - it('implements __concat', function() - assert.equal(v..w, 28) - end) - - it('implements __call', function() - assert.equal(v(), math.sqrt(14)) - end) - - it('implements __pow', function() - assert.equal(v^w, Vector(0,0,0)) - end) - - it('implements __mul', function() - assert.equal(4*v, Vector(4,8,12)) - end) - - it('implements __metatable', function() - assert.equal("metatable of a vector", getmetatable(v)) - end) - - it('implements __mode', function() - v[{}] = true - collectgarbage() - for k in pairs(v) do assert.not_table(k) end - end) - - --[[ - it('implements __index', function() - assert.equal(b[1], 3) - end) - --]] - - describe('Inherited Metamethods', function() - local Vector2, v2, w2 - before_each(function() - Vector2= class('Vector2', Vector) - function Vector2:initialize(x,y,z) Vector.initialize(self,x,y,z) end - - v2 = Vector2:new(1,2,3) - w2 = Vector2:new(2,4,6) - end) - - it('implements __tostring', function() - assert.equal(tostring(v2), "Vector2[1,2,3]") - end) - - it('implements __eq', function() - assert.equal(v2, v2) - end) - - it('implements __lt', function() - assert.is_true(v2 < w2) - end) - - it('implements __le', function() - assert.is_true(v2 <= w2) - end) - - it('implements __add', function() - assert.equal(v2+w2, Vector2(3,6,9)) - end) - - it('implements __sub', function() - assert.equal(w2-v2, Vector2(1,2,3)) - end) - - it('implements __div', function() - assert.equal(w2/2, Vector2(1,2,3)) - end) - - it('implements __concat', function() - assert.equal(v2..w2, 28) - end) - - it('implements __call', function() - assert.equal(v2(), math.sqrt(14)) - end) - - it('implements __pow', function() - assert.equal(v2^w2, Vector2(0,0,0)) - end) - - it('implements __mul', function() - assert.equal(4*v2, Vector2(4,8,12)) - end) - - it('implements __metatable', function() - assert.equal("metatable of a vector", getmetatable(v2)) - end) - - it('implements __mode', function() - v2[{}] = true - collectgarbage() - for k in pairs(v2) do assert.not_table(k) end - end) - - it('allows inheriting further', function() - local Vector3 = class('Vector3', Vector2) - local v3 = Vector3(1,2,3) - local w3 = Vector3(3,4,5) - assert.equal(v3+w3, Vector3(4,6,8)) - end) - - describe('Updates', function() - it('overrides __add', function() - Vector2.__add = function(a, b) return Vector.__add(a, b)/2 end - assert.equal(v2+w2, Vector2(1.5,3,4.5)) - end) - - it('updates __add', function() - Vector.__add = Vector.__sub - assert.equal(v2+w2, Vector2(-1,-2,-3)) - end) - - it('does not update __add after overriding', function() - Vector2.__add = function(a, b) return Vector.__add(a, b)/2 end - Vector.__add = Vector.__sub - assert.equal(v2+w2, Vector2(-0.5,-1,-1.5)) - end) - - it('reverts __add override', function() - Vector2.__add = function(a, b) return Vector.__add(a, b)/2 end - Vector2.__add = nil - assert.equal(v2+w2, Vector2(3,6,9)) - end) - end) - end) - end) - - describe('Custom __index and __newindex', function() - describe('Tables', function() - local Proxy, fallback, p - before_each(function() - Proxy = class('Proxy') - fallback = {foo = 'bar', common = 'fallback'} - Proxy.__index = fallback - Proxy.__newindex = fallback - Proxy.common = 'class' - p = Proxy() - end) - - it('uses __index', function() - assert.equal(p.foo, 'bar') - end) - - it('does not use __index when field exists in class', function() - assert.equal(p.common, 'class') - end) - - it('uses __newindex', function() - p.key = 'value' - assert.equal(fallback.key, 'value') - end) - - it('uses __newindex when field exists in class', function() - p.common = 'value' - assert.equal(p.common, 'class') - assert.equal(Proxy.common, 'class') - assert.equal(fallback.common, 'value') - end) - end) - - describe('Functions', function() - local Namespace, Rectangle, r - before_each(function() - Namespace = class('Namespace') - function Namespace:__index(name) - local getter = self.class[name.."Getter"] - if getter then return getter(self) end - end - function Namespace:__newindex(name, value) - local setter = self.class[name.."Setter"] - if setter then setter(self, value) else rawset(self, name, value) end - end - Rectangle = class('Rectangle', Namespace) - function Rectangle:initialize(x, y, scale) - self._scale, self.x, self.y = 1, x, y - self.scale = scale - end - function Rectangle:scaleGetter() return self._scale end - function Rectangle:scaleSetter(v) - self.x = self.x*v/self._scale - self.y = self.y*v/self._scale - self._scale = v - end - function Rectangle:areaGetter() return self.x * self.y end - r = Rectangle(3, 4, 2) - end) - - it('uses setter', function() - assert.equal(r.x, 6) - assert.equal(r.y, 8) - r.scale = 3 - assert.equal(r.x, 9) - assert.equal(r.y, 12) - end) - - it('uses getters', function() - assert.equal(r.scale, 2) - assert.equal(r.area, 48) - end) - - it('updates inherited __index', function() - function Namespace.__index() return 42 end - assert.equal(r.area, 42) - function Rectangle.__index() return 24 end - assert.equal(r.area, 24) - function Namespace.__index() return 96 end - assert.equal(r.area, 24) - Rectangle.__index = nil - assert.equal(r.area, 96) - end) - end) - end) - - describe('Default Metamethods', function() - - local Peter, peter - - before_each(function() - Peter = class('Peter') - peter = Peter() - end) - - describe('A Class', function() - it('has a call metamethod properly set', function() - assert.is_true(peter:isInstanceOf(Peter)) - end) - it('has a tostring metamethod properly set', function() - assert.equal(tostring(Peter), 'class Peter') - end) - end) - - describe('An instance', function() - it('has a tostring metamethod, returning a different result from Object.__tostring', function() - assert.equal(tostring(peter), 'instance of class Peter') - end) - end) - end) - -end) |