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import { cloneDeep } from 'lodash'
import {
VERSION,
COMMAND_TRIM_FLAGS,
COMMAND_TRIM_FLAGS_AND_RESET,
_getRecentData,
_getAllFlags,
_mergeFlags,
_resetFlags,
mutations,
defaultState,
newUserFlags
} from 'src/modules/serverSideStorage.js'
describe('The serverSideStorage module', () => {
describe('mutations', () => {
describe('setServerSideStorage', () => {
const { setServerSideStorage } = mutations
const user = {
created_at: new Date('1999-02-09'),
storage: {}
}
it('should initialize storage if none present', () => {
const state = cloneDeep(defaultState)
setServerSideStorage(state, user)
expect(state.cache._version).to.eql(VERSION)
expect(state.cache._timestamp).to.be.a('number')
expect(state.cache.flagStorage).to.eql(defaultState.flagStorage)
})
it('should initialize storage with proper flags for new users if none present', () => {
const state = cloneDeep(defaultState)
setServerSideStorage(state, { ...user, created_at: new Date() })
expect(state.cache._version).to.eql(VERSION)
expect(state.cache._timestamp).to.be.a('number')
expect(state.cache.flagStorage).to.eql(newUserFlags)
})
it('should merge flags even if remote timestamp is older', () => {
const state = {
...cloneDeep(defaultState),
cache: {
_timestamp: Date.now(),
_version: VERSION,
...cloneDeep(defaultState)
}
}
setServerSideStorage(
state,
{
...user,
storage: {
_timestamp: 123,
_version: VERSION,
flagStorage: {
...defaultState.flagStorage,
updateCounter: 1
}
}
}
)
expect(state.cache.flagStorage).to.eql({
...defaultState.flagStorage,
updateCounter: 1
})
})
it('should reset local timestamp to remote if contents are the same', () => {
const state = {
...cloneDeep(defaultState),
cache: null
}
setServerSideStorage(
state,
{
...user,
storage: {
_timestamp: 123,
_version: VERSION,
flagStorage: {
...defaultState.flagStorage,
updateCounter: 999
}
}
}
)
expect(state.cache._timestamp).to.eql(123)
expect(state.flagStorage.updateCounter).to.eql(999)
expect(state.cache.flagStorage.updateCounter).to.eql(999)
})
it('should remote version if local missing', () => {
const state = cloneDeep(defaultState)
setServerSideStorage(state, user)
expect(state.cache._version).to.eql(VERSION)
expect(state.cache._timestamp).to.be.a('number')
expect(state.cache.flagStorage).to.eql(defaultState.flagStorage)
})
})
})
describe('helper functions', () => {
describe('_getRecentData', () => {
it('should handle nulls correctly', () => {
expect(_getRecentData(null, null)).to.eql({ recent: null, stale: null, needUpload: true })
})
it('doesn\'t choke on invalid data', () => {
expect(_getRecentData({ a: 1 }, { b: 2 })).to.eql({ recent: null, stale: null, needUpload: true })
})
it('should prefer the valid non-null correctly, needUpload works properly', () => {
const nonNull = { _version: VERSION, _timestamp: 1 }
expect(_getRecentData(nonNull, null)).to.eql({ recent: nonNull, stale: null, needUpload: true })
expect(_getRecentData(null, nonNull)).to.eql({ recent: nonNull, stale: null, needUpload: false })
})
it('should prefer the one with higher timestamp', () => {
const a = { _version: VERSION, _timestamp: 1 }
const b = { _version: VERSION, _timestamp: 2 }
expect(_getRecentData(a, b)).to.eql({ recent: b, stale: a, needUpload: false })
expect(_getRecentData(b, a)).to.eql({ recent: b, stale: a, needUpload: false })
})
it('case where both are same', () => {
const a = { _version: VERSION, _timestamp: 3 }
const b = { _version: VERSION, _timestamp: 3 }
expect(_getRecentData(a, b)).to.eql({ recent: b, stale: a, needUpload: false })
expect(_getRecentData(b, a)).to.eql({ recent: b, stale: a, needUpload: false })
})
})
describe('_getAllFlags', () => {
it('should handle nulls properly', () => {
expect(_getAllFlags(null, null)).to.eql([])
})
it('should output list of keys if passed single object', () => {
expect(_getAllFlags({ flagStorage: { a: 1, b: 1, c: 1 } }, null)).to.eql(['a', 'b', 'c'])
})
it('should union keys of both objects', () => {
expect(_getAllFlags({ flagStorage: { a: 1, b: 1, c: 1 } }, { flagStorage: { c: 1, d: 1 } })).to.eql(['a', 'b', 'c', 'd'])
})
})
describe('_mergeFlags', () => {
it('should handle merge two flag sets correctly picking higher numbers', () => {
expect(
_mergeFlags(
{ flagStorage: { a: 0, b: 3 } },
{ flagStorage: { b: 1, c: 4, d: 9 } },
['a', 'b', 'c', 'd'])
).to.eql({ a: 0, b: 3, c: 4, d: 9 })
})
})
describe('_resetFlags', () => {
it('should reset all known flags to 0 when reset flag is set to > 0 and < 9000', () => {
const totalFlags = { a: 0, b: 3, reset: 1 }
expect(_resetFlags(totalFlags)).to.eql({ a: 0, b: 0, reset: 0 })
})
it('should trim all flags to known when reset is set to 1000', () => {
const totalFlags = { a: 0, b: 3, c: 33, reset: COMMAND_TRIM_FLAGS }
expect(_resetFlags(totalFlags, { a: 0, b: 0, reset: 0 })).to.eql({ a: 0, b: 3, reset: 0 })
})
it('should trim all flags to known and reset when reset is set to 1001', () => {
const totalFlags = { a: 0, b: 3, c: 33, reset: COMMAND_TRIM_FLAGS_AND_RESET }
expect(_resetFlags(totalFlags, { a: 0, b: 0, reset: 0 })).to.eql({ a: 0, b: 0, reset: 0 })
})
})
})
})
|
