@danielkalen/simplybind/test/specs/stage-2-methods/setOption.coffee

Magically simple, framework-less one-way/two-way data binding for frontend/backend in ~5kb.

suite ".setOption()", ()->
	test "should update the specified option only for the target interface and not modify global default options", ()->
		SimplyBind.defaultOptions.updateOnBind = false
		expect(SimplyBind.defaultOptions.updateOnBind).to.be.false

		pubInterface = SimplyBind('prop1').of(objectA)
		subInterface = SimplyBind('prop1').of(objectB)
		binding = pubInterface.to(subInterface)
		metaData = pubInterface._.subsMeta or pubInterface._.sM
		opts = metaData[subInterface._.ID].opts

		expect(opts.updateOnBind).to.be.false


		binding.setOption 'updateOnBind', true
		expect(opts.updateOnBind).to.be.true
		expect(SimplyBind.defaultOptions.updateOnBind).to.be.false

		SimplyBind.defaultOptions.updateOnBind = true
		restartSandbox()



	test "should only update the options for the last added sub in a chain", ()->
		SimplyBind.defaultOptions.updateEvenIfSame = false
		SimplyBind.defaultOptions.updateOnBind = false
		dispatcher = 'prop':'value'
		receivers = {1,2,3,4}
		updateCount = 1:0, 2:0, 3:0, 4:0

		bindings = 
			1: SimplyBind(1).of(receivers).to ()-> updateCount[1]++
			2: SimplyBind(2).of(receivers).to ()-> updateCount[2]++
			3: SimplyBind(3).of(receivers).to ()-> updateCount[3]++
			4: SimplyBind(4).of(receivers).to ()-> updateCount[4]++
		expect(updateCount[1]).to.equal 0
		expect(updateCount[2]).to.equal 0
		expect(updateCount[3]).to.equal 0
		expect(updateCount[4]).to.equal 0
		

		SimplyBind('prop').of(dispatcher)
			.to(1).of(receivers)
			.and.to(2).of(receivers)
			.and.to(3).of(receivers).setOption('updateEvenIfSame', true)
			.and.to(4).of(receivers)
		bindings[3].setOption('updateEvenIfSame', true)

		dispatcher.prop = 'anotherValue'
		expect(updateCount[1]).to.equal 1
		expect(updateCount[2]).to.equal 1
		expect(updateCount[3]).to.equal 1
		expect(updateCount[4]).to.equal 1

		dispatcher.prop = dispatcher.prop
		expect(updateCount[1]).to.equal 1
		expect(updateCount[2]).to.equal 1
		expect(updateCount[3]).to.equal 2
		expect(updateCount[4]).to.equal 1

		SimplyBind.defaultOptions.updateOnBind = true
		restartSandbox()