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45 lines
1.7 KiB
CoffeeScript
45 lines
1.7 KiB
CoffeeScript
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DeserializerManager = require '../src/deserializer-manager'
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describe "DeserializerManager", ->
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manager = null
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class Foo
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@deserialize: ({name}) -> new Foo(name)
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constructor: (@name) ->
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beforeEach ->
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manager = new DeserializerManager
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describe "::add(deserializer)", ->
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it "returns a disposable that can be used to remove the manager", ->
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disposable = manager.add(Foo)
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expect(manager.deserialize({deserializer: 'Foo', name: 'Bar'})).toBeDefined()
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disposable.dispose()
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spyOn(console, 'warn')
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expect(manager.deserialize({deserializer: 'Foo', name: 'Bar'})).toBeUndefined()
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describe "::deserialize(state)", ->
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beforeEach ->
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manager.add(Foo)
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it "calls deserialize on the manager for the given state object, or returns undefined if one can't be found", ->
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spyOn(console, 'warn')
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object = manager.deserialize({deserializer: 'Foo', name: 'Bar'})
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expect(object.name).toBe 'Bar'
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expect(manager.deserialize({deserializer: 'Bogus'})).toBeUndefined()
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describe "when the manager has a version", ->
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beforeEach ->
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Foo.version = 2
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describe "when the deserialized state has a matching version", ->
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it "attempts to deserialize the state", ->
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object = manager.deserialize({deserializer: 'Foo', version: 2, name: 'Bar'})
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expect(object.name).toBe 'Bar'
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describe "when the deserialized state has a non-matching version", ->
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it "returns undefined", ->
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expect(manager.deserialize({deserializer: 'Foo', version: 3, name: 'Bar'})).toBeUndefined()
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expect(manager.deserialize({deserializer: 'Foo', version: 1, name: 'Bar'})).toBeUndefined()
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expect(manager.deserialize({deserializer: 'Foo', name: 'Bar'})).toBeUndefined()
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