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Merged
merged 3 commits into from
Sep 21, 2022
Merged

Add property-based testing to DateTime serialisation #999

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9d40a8c
Add property-based testing to DateTime serialization
bigmontz Sep 20, 2022
dad19e6
Filtering valid timezones
bigmontz Sep 20, 2022
2afb0bd
Addressing comments in the pr
bigmontz Sep 21, 2022
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42 changes: 42 additions & 0 deletions packages/bolt-connection/package-lock.json
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1 change: 1 addition & 0 deletions packages/bolt-connection/package.json
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Original file line number Diff line number Diff line change
Expand Up @@ -32,6 +32,7 @@
"homepage": "https://github.com/neo4j/neo4j-javascript-driver#readme",
"devDependencies": {
"@types/jest": "^27.1.4",
"fast-check": "^3.1.3",
"jest": "^27.1.4",
"lolex": "^6.0.0",
"ts-jest": "^27.1.4",
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82 changes: 81 additions & 1 deletion packages/bolt-connection/test/bolt/bolt-protocol-v4x3.test.js
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Expand Up @@ -39,13 +39,15 @@ import {

import { alloc } from '../../src/channel'
import { structure } from '../../src/packstream'
import fc from 'fast-check'

const WRITE = 'WRITE'

const {
txConfig: { TxConfig },
bookmarks: { Bookmarks },
logger: { Logger }
logger: { Logger },
temporalUtil
} = internal

describe('#unit BoltProtocolV4x3', () => {
Expand Down Expand Up @@ -850,6 +852,84 @@ describe('#unit BoltProtocolV4x3', () => {
expect(unpackedDateTimeWithoutOffset).toEqual(object)
})

it('should pack and unpack DateTimeWithOffset', () => {
fc.assert(
fc.property(
fc.date({
min: temporalUtil.newDate(utils.MIN_UTC_IN_MS + utils.ONE_DAY_IN_MS),
max: temporalUtil.newDate(utils.MAX_UTC_IN_MS - utils.ONE_DAY_IN_MS)
}),
utils.arbitraryTimeZoneId(),
(date, timeZoneId) => {
const object = new DateTime(
date.getUTCFullYear(),
date.getUTCMonth() + 1,
date.getUTCDate(),
date.getUTCHours(),
date.getUTCMinutes(),
date.getUTCSeconds(),
date.getUTCMilliseconds() * 1_000_000,
undefined,
timeZoneId
)

buffer.reset()

const packable = protocol.packable(object)

expect(packable).not.toThrow()

buffer.reset()

const unpacked = protocol.unpack(buffer)

expect(unpacked.timeZoneOffsetSeconds).toBeDefined()

const unpackedDateTimeWithoutOffset = new DateTime(
unpacked.year,
unpacked.month,
unpacked.day,
unpacked.hour,
unpacked.minute,
unpacked.second,
unpacked.nanosecond,
undefined,
unpacked.timeZoneId
)

expect(loggerFunction)
.toBeCalledWith('warn',
'DateTime objects without "timeZoneOffsetSeconds" property ' +
'are prune to bugs related to ambiguous times. For instance, ' +
'2022-10-30T2:30:00[Europe/Berlin] could be GMT+1 or GMT+2.')

expect(unpackedDateTimeWithoutOffset).toEqual(object)
})
)
})

it('should pack and unpack DateTimeWithZoneIdAndNoOffset', () => {
fc.assert(
fc.property(fc.date(), date => {
const object = DateTime.fromStandardDate(date)

buffer.reset()

const packable = protocol.packable(object)

expect(packable).not.toThrow()

buffer.reset()

const unpacked = protocol.unpack(buffer)

expect(unpacked.timeZoneOffsetSeconds).toBeDefined()

expect(unpacked).toEqual(object)
})
)
})

it.each([
[
'DateTimeWithZoneOffset with less fields',
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82 changes: 81 additions & 1 deletion packages/bolt-connection/test/bolt/bolt-protocol-v4x4.test.js
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Original file line number Diff line number Diff line change
Expand Up @@ -39,13 +39,15 @@ import {

import { alloc } from '../../src/channel'
import { structure } from '../../src/packstream'
import fc from 'fast-check'

const WRITE = 'WRITE'

const {
txConfig: { TxConfig },
bookmarks: { Bookmarks },
logger: { Logger }
logger: { Logger },
temporalUtil
} = internal

describe('#unit BoltProtocolV4x4', () => {
Expand Down Expand Up @@ -883,6 +885,84 @@ describe('#unit BoltProtocolV4x4', () => {
expect(unpackedDateTimeWithoutOffset).toEqual(object)
})

it('should pack and unpack DateTimeWithOffset', () => {
fc.assert(
fc.property(
fc.date({
min: temporalUtil.newDate(utils.MIN_UTC_IN_MS + utils.ONE_DAY_IN_MS),
max: temporalUtil.newDate(utils.MAX_UTC_IN_MS - utils.ONE_DAY_IN_MS)
}),
utils.arbitraryTimeZoneId(),
(date, timeZoneId) => {
const object = new DateTime(
date.getUTCFullYear(),
date.getUTCMonth() + 1,
date.getUTCDate(),
date.getUTCHours(),
date.getUTCMinutes(),
date.getUTCSeconds(),
date.getUTCMilliseconds() * 1_000_000,
undefined,
timeZoneId
)

buffer.reset()

const packable = protocol.packable(object)

expect(packable).not.toThrow()

buffer.reset()

const unpacked = protocol.unpack(buffer)

expect(unpacked.timeZoneOffsetSeconds).toBeDefined()

const unpackedDateTimeWithoutOffset = new DateTime(
unpacked.year,
unpacked.month,
unpacked.day,
unpacked.hour,
unpacked.minute,
unpacked.second,
unpacked.nanosecond,
undefined,
unpacked.timeZoneId
)

expect(loggerFunction)
.toBeCalledWith('warn',
'DateTime objects without "timeZoneOffsetSeconds" property ' +
'are prune to bugs related to ambiguous times. For instance, ' +
'2022-10-30T2:30:00[Europe/Berlin] could be GMT+1 or GMT+2.')

expect(unpackedDateTimeWithoutOffset).toEqual(object)
})
)
})

it('should pack and unpack DateTimeWithZoneIdAndNoOffset', () => {
fc.assert(
fc.property(fc.date(), date => {
const object = DateTime.fromStandardDate(date)

buffer.reset()

const packable = protocol.packable(object)

expect(packable).not.toThrow()

buffer.reset()

const unpacked = protocol.unpack(buffer)

expect(unpacked.timeZoneOffsetSeconds).toBeDefined()

expect(unpacked).toEqual(object)
})
)
})

it.each([
[
'DateTimeWithZoneOffset with less fields',
Expand Down
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