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update.js
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var assert = require('assert')
var sinon = require('sinon')
var Model = require('./model.js')
var View = require('./view.js')
describe('ModelUpdate', function() {
describe('reset model', function() {
it('should set single insert range', function() {
model = new Model()
view = new View()
sinon.spy(view, '_insertItems')
model.reset(6000)
model.apply(view)
sinon.assert.calledOnce(view._insertItems)
sinon.assert.calledWith(view._insertItems, 0, 6000)
})
})
describe('insert + remove', function() {
it('should result in no', function() {
model = new Model()
view = new View()
sinon.spy(view, '_insertItems')
sinon.spy(view, '_updateItems')
sinon.spy(view, '_removeItems')
model.insert(0, 10)
model.remove(0, 10)
model.apply(view)
sinon.assert.notCalled(view._insertItems)
sinon.assert.notCalled(view._updateItems)
sinon.assert.notCalled(view._removeItems)
})
})
describe('sequental left insert', function() {
it('should set single insert range', function() {
model = new Model()
view = new View()
sinon.spy(view, '_insertItems')
for(var i = 0; i < 10; ++i)
model.insert(0, 1)
model.apply(view)
sinon.assert.calledOnce(view._insertItems)
sinon.assert.calledWith(view._insertItems, 0, 10)
})
})
describe('sequental right insert', function() {
it('should set single insert range', function() {
model = new Model()
view = new View()
sinon.spy(view, '_insertItems')
for(var i = 0; i < 10; ++i)
model.insert(i, i + 1)
model.apply(view)
sinon.assert.calledOnce(view._insertItems)
sinon.assert.calledWith(view._insertItems, 0, 10)
})
})
describe('sequental left remove', function() {
it('should set single remove range', function() {
model = new Model()
view = new View()
sinon.spy(view, '_removeItems')
model.reset(10)
model.apply(view)
for(var i = 0; i < 10; ++i)
model.remove(0, 1)
model.apply(view)
sinon.assert.calledOnce(view._removeItems)
sinon.assert.calledWith(view._removeItems, 0, 10)
})
})
describe('sequental right remove', function() {
it('should set single remove range', function() {
model = new Model()
view = new View()
sinon.spy(view, '_removeItems')
model.reset(10)
model.apply(view)
for(var i = 9; i >= 0; --i)
model.remove(i, i + 1)
model.apply(view)
sinon.assert.calledOnce(view._removeItems)
sinon.assert.calledWith(view._removeItems, 0, 10)
})
})
describe('stray update', function() {
it('should call update', function() {
model = new Model()
view = new View()
model.reset(5)
model.apply(view)
sinon.spy(view, '_updateItems')
model.update(0, 1)
model.apply(view)
sinon.assert.calledOnce(view._updateItems)
sinon.assert.calledWith(view._updateItems, 0, 1)
})
})
describe('sequental left update', function() {
it('should set three ranges, noop, update, noop', function() {
model = new Model()
view = new View()
sinon.spy(view, '_updateItems')
model.reset(5)
model.apply(view)
for(var i = 1; i <= 3; ++i)
model.update(i, i + 1)
model.apply(view)
sinon.assert.calledOnce(view._updateItems)
sinon.assert.calledWith(view._updateItems, 1, 4)
})
})
describe('sequental right update', function() {
it('should set three ranges, noop, update, noop', function() {
model = new Model()
view = new View()
sinon.spy(view, '_updateItems')
model.reset(5)
model.apply(view)
for(var i = 3; i >= 1; --i)
model.update(i, i + 1)
model.apply(view)
sinon.assert.calledOnce(view._updateItems)
sinon.assert.calledWith(view._updateItems, 1, 4)
})
})
describe('interlaced update', function() {
it('should set single-value ranges, noop, update, noop', function() {
model = new Model()
view = new View()
sinon.spy(view, '_updateItems')
model.reset(10)
model.apply(view)
for(var i = 1; i < 10; i += 2)
model.update(i, i + 1)
model.apply(view)
sinon.assert.callCount(view._updateItems, 5)
sinon.assert.calledWith(view._updateItems, 1, 2)
sinon.assert.calledWith(view._updateItems, 3, 4)
sinon.assert.calledWith(view._updateItems, 5, 6)
sinon.assert.calledWith(view._updateItems, 7, 8)
sinon.assert.calledWith(view._updateItems, 9, 10)
})
})
describe('interlaced full update', function() {
it('should set single range', function() {
model = new Model()
view = new View()
sinon.spy(view, '_updateItems')
model.reset(10)
model.apply(view)
for(var i = 1; i < 10; i += 2)
model.update(i, i + 1)
for(var i = 0; i < 9; i += 2)
model.update(i, i + 1)
model.apply(view)
sinon.assert.calledOnce(view._updateItems)
sinon.assert.calledWith(view._updateItems, 0, 10)
})
})
describe('reset model, the same row count', function() {
it('should call insert, then update', function() {
model = new Model()
view = new View()
sinon.spy(view, '_insertItems')
sinon.spy(view, '_updateItems')
sinon.spy(view, '_removeItems')
model.reset(10)
model.apply(view)
model.reset(10)
model.apply(view)
sinon.assert.calledOnce(view._insertItems)
sinon.assert.calledWith(view._insertItems, 0, 10)
sinon.assert.calledOnce(view._updateItems)
sinon.assert.calledWith(view._updateItems, 0, 10)
assert(!view._removeItems.called)
})
})
describe('reset model, with bigger row count', function() {
it('should call insert, update, and insert', function() {
model = new Model()
view = new View()
var insert = sinon.spy(view, '_insertItems')
var update = sinon.spy(view, '_updateItems')
var remove = sinon.spy(view, '_removeItems')
//fixme: add withArgs here
model.reset(10)
model.apply(view)
model.reset(20)
model.apply(view)
sinon.assert.calledTwice(view._insertItems)
sinon.assert.calledOnce(view._updateItems)
assert(!view._removeItems.called)
})
})
describe('reset model, with lesser row count', function() {
it('should call insert, update, and remove', function() {
model = new Model()
view = new View()
var insert = sinon.spy(view, '_insertItems')
var update = sinon.spy(view, '_updateItems')
var remove = sinon.spy(view, '_removeItems')
//fixme: add withArgs here
model.reset(20)
model.apply(view)
model.reset(10)
model.apply(view)
sinon.assert.calledOnce(view._insertItems)
sinon.assert.calledOnce(view._updateItems)
sinon.assert.calledOnce(view._removeItems)
})
})
describe('reset model, then update', function() {
it('should call insert, update, and remove', function() {
model = new Model()
view = new View()
var insert = sinon.spy(view, '_insertItems')
var update = sinon.spy(view, '_updateItems')
var remove = sinon.spy(view, '_removeItems')
model.reset(20)
model.apply(view)
sinon.assert.calledWith(view._insertItems, 0, 20)
sinon.assert.notCalled(view._updateItems)
sinon.assert.notCalled(view._removeItems)
model.reset(20)
model.update(0, 1)
model.apply(view)
sinon.assert.calledWith(view._insertItems, 0, 20)
sinon.assert.callCount(view._insertItems, 1)
sinon.assert.calledWith(view._updateItems, 0, 20)
sinon.assert.callCount(view._updateItems, 1)
sinon.assert.notCalled(view._removeItems)
})
})
describe('insert + update', function() {
it('should call insert and update with no overlap', function() {
model = new Model()
view = new View()
model.reset(10)
model.apply(view)
sinon.spy(view, '_insertItems')
sinon.spy(view, '_updateItems')
model.insert(10, 20)
for(var i = 0; i < 20; ++i)
model.update(i, i + 1)
model.apply(view)
sinon.assert.calledOnce(view._insertItems)
sinon.assert.calledWith(view._insertItems, 10, 20)
sinon.assert.calledOnce(view._updateItems)
sinon.assert.calledWith(view._updateItems, 0, 10)
})
})
describe('update + remove', function() {
it('should call remove and update with no overlap', function() {
model = new Model()
view = new View()
model.reset(20)
model.apply(view)
sinon.spy(view, '_removeItems')
sinon.spy(view, '_updateItems')
for(var i = 0; i < 20; ++i)
model.update(i, i + 1)
model.remove(10, 20)
model.apply(view)
sinon.assert.calledOnce(view._removeItems)
sinon.assert.calledWith(view._removeItems, 10, 20)
sinon.assert.calledOnce(view._updateItems)
sinon.assert.calledWith(view._updateItems, 0, 10)
})
})
describe('remove + update', function() {
it('should call remove and update with no overlap', function() {
model = new Model()
view = new View()
model.reset(20)
model.apply(view)
sinon.spy(view, '_removeItems')
sinon.spy(view, '_updateItems')
model.remove(0, 10)
for(var i = 0; i < 10; ++i)
model.update(i, i + 1)
model.apply(view)
sinon.assert.calledOnce(view._removeItems)
sinon.assert.calledWith(view._removeItems, 0, 10)
sinon.assert.calledOnce(view._updateItems)
sinon.assert.calledWith(view._updateItems, 0, 10)
})
})
describe('remove from front + insert to back', function() {
it('should call to remove/update/insert because it changes model.index', function() {
model = new Model()
view = new View()
model.reset(10)
model.apply(view)
sinon.spy(view, '_insertItems')
sinon.spy(view, '_removeItems')
sinon.spy(view, '_updateItems')
model.remove(0, 1)
model.insert(9, 10)
model.apply(view)
sinon.assert.calledOnce(view._removeItems)
sinon.assert.calledWith(view._removeItems, 0, 1)
sinon.assert.calledOnce(view._updateItems)
sinon.assert.calledWith(view._updateItems, 0, 9)
sinon.assert.calledOnce(view._insertItems)
sinon.assert.calledWith(view._insertItems, 9, 10)
})
})
describe('insert to front + remove from back', function() {
it('should call to remove/update/insert because it changes model.index', function() {
model = new Model()
view = new View()
model.reset(10)
model.apply(view)
sinon.spy(view, '_insertItems')
sinon.spy(view, '_removeItems')
sinon.spy(view, '_updateItems')
model.insert(0, 1)
model.remove(10, 11)
model.apply(view)
sinon.assert.calledOnce(view._insertItems)
sinon.assert.calledWith(view._insertItems, 0, 1)
sinon.assert.calledOnce(view._updateItems)
sinon.assert.calledWith(view._updateItems, 1, 10)
sinon.assert.calledOnce(view._removeItems)
sinon.assert.calledWith(view._removeItems, 10, 11)
})
})
describe('reset + insert same row count', function() {
it('should call to update', function() {
model = new Model()
view = new View()
model.reset(10)
model.apply(view)
sinon.spy(view, '_insertItems')
sinon.spy(view, '_removeItems')
sinon.spy(view, '_updateItems')
model.reset(0)
for(var i = 0; i < 10; ++i)
model.insert(i, i + 1)
model.apply(view)
sinon.assert.calledOnce(view._updateItems)
sinon.assert.calledWith(view._updateItems, 0, 10)
sinon.assert.notCalled(view._insertItems)
sinon.assert.notCalled(view._removeItems)
})
})
describe('reset + insert + reset + insert', function() {
it('should call update/insert once', function() {
model = new Model()
view = new View()
model.reset(4)
model.apply(view)
model.reset(0)
model.reset(0)
model.insert(0, 5)
model.reset(0)
model.reset(0)
model.insert(0, 6)
model.reset(0)
model.reset(0)
model.insert(0, 8)
sinon.spy(view, '_insertItems')
sinon.spy(view, '_removeItems')
sinon.spy(view, '_updateItems')
model.apply(view)
sinon.assert.calledOnce(view._insertItems)
sinon.assert.calledWith(view._insertItems, 4, 8)
sinon.assert.notCalled(view._removeItems)
sinon.assert.callCount(view._updateItems, 1)
sinon.assert.calledWith(view._updateItems, 0, 4)
})
})
})