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8ea4b63878
git-subtree-dir: src/lib/middleclass git-subtree-split: 27a64f107e61532006030a6168e4fe6a71eee9a2
139 lines
3.2 KiB
Lua
139 lines
3.2 KiB
Lua
local class = require 'middleclass'
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describe('A Class', function()
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describe('Default stuff', function()
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local AClass
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before_each(function()
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AClass = class('AClass')
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end)
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describe('name', function()
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it('is correctly set', function()
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assert.equal(AClass.name, 'AClass')
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end)
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end)
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describe('tostring', function()
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it('returns "class *name*"', function()
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assert.equal(tostring(AClass), 'class AClass')
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end)
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end)
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describe('()', function()
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it('returns an object, like Class:new()', function()
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local obj = AClass()
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assert.equal(obj.class, AClass)
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end)
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end)
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describe('include', function()
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it('throws an error when used without the :', function()
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assert.error(function() AClass.include() end)
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end)
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it('throws an error when passed a non-table:', function()
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assert.error(function() AClass:include(1) end)
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end)
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end)
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describe('subclass', function()
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it('throws an error when used without the :', function()
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assert.error(function() AClass.subclass() end)
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end)
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it('throws an error when no name is given', function()
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assert.error( function() AClass:subclass() end)
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end)
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describe('when given a subclass name', function()
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local SubClass
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before_each(function()
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function AClass.static:subclassed(other) self.static.child = other end
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SubClass = AClass:subclass('SubClass')
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end)
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it('it returns a class with the correct name', function()
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assert.equal(SubClass.name, 'SubClass')
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end)
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it('it returns a class with the correct superclass', function()
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assert.equal(SubClass.super, AClass)
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end)
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it('it invokes the subclassed hook method', function()
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assert.equal(SubClass, AClass.child)
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end)
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it('it includes the subclass in the list of subclasses', function()
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assert.is_true(AClass.subclasses[SubClass])
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end)
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end)
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end)
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end)
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describe('attributes', function()
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local A, B
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before_each(function()
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A = class('A')
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A.static.foo = 'foo'
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B = class('B', A)
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end)
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it('are available after being initialized', function()
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assert.equal(A.foo, 'foo')
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end)
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it('are available for subclasses', function()
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assert.equal(B.foo, 'foo')
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end)
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it('are overridable by subclasses, without affecting the superclasses', function()
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B.static.foo = 'chunky bacon'
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assert.equal(B.foo, 'chunky bacon')
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assert.equal(A.foo, 'foo')
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end)
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end)
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describe('methods', function()
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local A, B
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before_each(function()
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A = class('A')
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function A.static:foo() return 'foo' end
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B = class('B', A)
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end)
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it('are available after being initialized', function()
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assert.equal(A:foo(), 'foo')
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end)
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it('are available for subclasses', function()
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assert.equal(B:foo(), 'foo')
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end)
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it('are overridable by subclasses, without affecting the superclasses', function()
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function B.static:foo() return 'chunky bacon' end
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assert.equal(B:foo(), 'chunky bacon')
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assert.equal(A:foo(), 'foo')
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end)
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end)
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end)
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