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calculate-scroll-canvas.js
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calculate-scroll-canvas.js
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import { calculateScrollCanvas } from 'lib/utility/calendar'
import {items, groups} from '../../../__fixtures__/itemsAndGroups'
import {props, state, visibleTimeStart, visibleTimeEnd} from '../../../__fixtures__/stateAndProps'
describe('calculateScrollCanvas', () => {
it('should calculate new scroll state', () => {
const newStartTime = visibleTimeStart + 13 * 60 * 60 * 1000
const newEndTime = visibleTimeEnd + visibleTimeStart + 13 * 60 * 60 * 1000
const result = calculateScrollCanvas(
newStartTime,
newEndTime,
false,
items,
groups,
props,
state
)
expect(result).toHaveProperty('visibleTimeStart')
expect(result).toHaveProperty('visibleTimeEnd')
expect(result).toHaveProperty('dimensionItems')
})
it('should calculate new scroll state correctly', () => {
const newStartTime = visibleTimeStart + 13 * 60 * 60 * 1000
const newEndTime = visibleTimeEnd + 13 * 60 * 60 * 1000
const result = calculateScrollCanvas(
newStartTime,
newEndTime,
false,
items,
groups,
props,
state
)
expect(result).toMatchSnapshot()
})
it('should skip new calculation if new visible start and visible end in canvas', () => {
const newStartTime = visibleTimeStart + 1 * 60 * 60 * 1000
const newEndTime = visibleTimeEnd + 1 * 60 * 60 * 1000
const result = calculateScrollCanvas(
newStartTime,
newEndTime,
false,
items,
groups,
props,
state
)
expect(result).toHaveProperty('visibleTimeStart')
expect(result).toHaveProperty('visibleTimeEnd')
expect(result).not.toHaveProperty('dimensionItems')
})
it('should force new calculation', () => {
const newStartTime = visibleTimeStart + 1 * 60 * 60 * 1000
const newEndTime = visibleTimeEnd + 1 * 60 * 60 * 1000
const result = calculateScrollCanvas(
newStartTime.valueOf(),
newEndTime.valueOf(),
true,
items,
groups,
props,
state
)
expect(result).toHaveProperty('visibleTimeStart')
expect(result).toHaveProperty('visibleTimeEnd')
expect(result).toHaveProperty('dimensionItems')
})
it('should calculate new state if zoom changed ', () => {
const newStartTime = visibleTimeStart
const newEndTime = visibleTimeEnd + 1 * 60 * 60 * 1000
const result = calculateScrollCanvas(
newStartTime,
newEndTime,
false,
items,
groups,
props,
state
)
expect(result).toHaveProperty('visibleTimeStart')
expect(result).toHaveProperty('visibleTimeEnd')
expect(result).toHaveProperty('dimensionItems')
})
it('should calculate new state if zoom changed correctly', () => {
const newStartTime = visibleTimeStart
const newEndTime = visibleTimeEnd + 1 * 60 * 60 * 1000
const result = calculateScrollCanvas(
newStartTime,
newEndTime,
false,
items,
groups,
props,
state
)
expect(result).toMatchSnapshot()
})
})