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BREAKING CHANGE: Fuzzers now have an input and decoded type. Fuzzer generate as output the *input* of the t.Type, not the decoded or output types.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,8 +1,91 @@ | ||
| import { FuzzContext, concreteFuzzerByName } from '../fuzzer'; | ||
| import { rngi } from '../rng'; | ||
| import { | ||
| FuzzContext, | ||
| concreteFuzzerByName, | ||
| FuzzerUnit, | ||
| ImmediateConcreteFuzzer, | ||
| fuzzerByName, | ||
| } from '../fuzzer'; | ||
| import { rngi, rng } from '../rng'; | ||
|
|
||
| import * as t from 'io-ts'; | ||
| import { isRight } from 'fp-ts/lib/Either'; | ||
| import { date } from 'io-ts-types/lib/date'; | ||
| import { DateFromISOString } from 'io-ts-types/lib/DateFromISOString'; | ||
| import { DateFromNumber } from 'io-ts-types/lib/DateFromNumber'; | ||
| import { DateFromUnixTime } from 'io-ts-types/lib/DateFromUnixTime'; | ||
| import { BooleanFromString } from 'io-ts-types/lib/BooleanFromString'; | ||
| import { IntFromString } from 'io-ts-types/lib/IntFromString'; | ||
| import { NumberFromString } from 'io-ts-types/lib/NumberFromString'; | ||
|
|
||
| function decode<A1, U, I1>(t: t.Type<A1, U, I1>, v: I1): A1 { | ||
| const d = t.decode(v); | ||
| // istanbul ignore else | ||
| if (isRight(d)) { | ||
| return d.right; | ||
| } else { | ||
| throw new Error('IOTSF0003: cannot decode piped fuzzer output'); | ||
| } | ||
| } | ||
|
|
||
| function pipeFuzzer<A1, I1, V, U, T>( | ||
| t: t.Type<A1, U, I1>, | ||
| e: t.Encode<A1, V> | ||
| ): ImmediateConcreteFuzzer<T, V> { | ||
| return { | ||
| type: 'fuzzer', | ||
| mightRecurse: false, | ||
| children: [t], | ||
| func: (ctx, n, h0) => { | ||
| return e(decode(t, (h0 as FuzzerUnit<I1>).encode([rngi(n), ctx]))); | ||
| }, | ||
| }; | ||
| } | ||
|
|
||
| export function fuzzDate(_: FuzzContext, n: number): Date { | ||
| return new Date(rngi(n) / 1000.0); | ||
| } | ||
|
|
||
| export const fuzzers = [concreteFuzzerByName(fuzzDate, 'Date')]; | ||
| export function fuzzUUID(_: FuzzContext, n: number): string { | ||
| const r = rng(n); | ||
| const ret: string[] = []; | ||
| for (const i of new Array(32).keys()) { | ||
| switch (i) { | ||
| case 8: | ||
| case 12: | ||
| case 16: | ||
| case 20: | ||
| ret.push('-'); | ||
| break; | ||
| default: | ||
| // nothing | ||
| } | ||
| ret.push((Math.abs(r.int32()) % 16).toString(16)); | ||
| } | ||
| return ret.join(''); | ||
| } | ||
|
|
||
| export function fuzzRegExp(i: string): RegExp { | ||
| return new RegExp(i); | ||
| } | ||
|
|
||
| export const fuzzers = [ | ||
| concreteFuzzerByName(fuzzDate, 'Date'), | ||
| fuzzerByName( | ||
| pipeFuzzer(t.boolean, BooleanFromString.encode), | ||
| 'BooleanFromString' | ||
| ), | ||
| fuzzerByName(pipeFuzzer(date, DateFromISOString.encode), 'DateFromISOString'), | ||
| fuzzerByName(pipeFuzzer(date, DateFromNumber.encode), 'DateFromNumber'), | ||
| fuzzerByName( | ||
| pipeFuzzer(date, x => Math.floor(DateFromUnixTime.encode(x))), | ||
| 'DateFromUnixTime' | ||
| ), | ||
| fuzzerByName(pipeFuzzer(t.Int, IntFromString.encode), 'IntFromString'), | ||
| fuzzerByName(pipeFuzzer(t.string, x => `n${x}`), 'NonEmptyString'), | ||
| fuzzerByName( | ||
| pipeFuzzer(t.number, NumberFromString.encode), | ||
| 'NumberFromString' | ||
| ), | ||
| concreteFuzzerByName(fuzzUUID, 'UUID'), | ||
| fuzzerByName(pipeFuzzer(t.string, fuzzRegExp), 'RegExp'), | ||
| ]; |
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