How to use nextBoolean method in fast-check-monorepo

Best JavaScript code snippet using fast-check-monorepo

beat_maker.js

Source:beat_maker.js

...6    let kick = this.pattern[0];7    let clap = this.pattern[1];8    let toms = [this.pattern[5], this.pattern[6], this.pattern[7]];9    let usedBeats = 0.0;10    let snareCutTime = this.rand.nextBoolean();11    let ib = 0;12    let usetom = false;13    let usekick;14    let useclap;15    for (let note of bassline) {16        usekick = false;17        useclap = false;18        usetom = false;19        if ((snareCutTime && usedBeats % 2 == 1.0) ||20                (!snareCutTime && usedBeats % 4 == 2.0)) {21            useclap = !note.isRest() || this.rand.nextBoolean();22        }23        else if ((snareCutTime && usedBeats % 2 == 0.0) ||24                (!snareCutTime && usedBeats % 4 == 0.0)) {25            usekick = !note.isRest() || this.rand.nextBoolean();26        }27        else {28            if (this.rand.nextBoolean())29                usekick = !note.isRest() && this.rand.nextBoolean();30            else31                usetom = !note.isRest() && this.rand.nextBoolean();32        }33        kick[ib] = usekick;34        clap[ib] = useclap;35        if (usetom) {36            toms[this.rand.nextInt(3)][ib] = true;37        }38        for (ib = ib + 1; ib < (usedBeats  + note.beats) * this.subbeats; ib++) {39            kick[ib] = this.rand.nextBoolean() && ((snareCutTime && ib % (2 * this.subbeats) == 0) ||40                    (!snareCutTime && ib % (4 * this.subbeats) == 0));41            clap[ib] = (snareCutTime && ib % (2 * this.subbeats) == this.subbeats) ||42                    (!snareCutTime && ib % (4 * this.subbeats) == (2 * this.subbeats));43        }44        usedBeats += note.beats;45    }46    for (ib = ib + 1; ib < (beats - usedBeats) * this.subbeats; ib++) {47        kick[ib] = this.rand.nextBoolean() && ((snareCutTime && ib % (2 * this.subbeats) == 0) ||48                (!snareCutTime && ib % (4 * this.subbeats) == 0));49        clap[ib] = this.rand.nextBoolean() && ((snareCutTime && ib % (2 * this.subbeats) == this.subbeats) ||50                (!snareCutTime && ib % (4 * this.subbeats) == (2 * this.subbeats)));51    }52    makeHiHatBeats(false);53}54OMGBeatMaker.prototype.makeHiHatBeats = function (defaultPattern) {55    let hihats = [this.pattern[2], this.pattern[3]];56    let openhh = this.rand.nextInt(3) > 0 ? 0 : 1;57    let opensubs = this.rand.nextInt(3) > 0 ? 0 : 1;58    let tmpopensubs;59    for (let i = 0; i < this.totalSubbeats; i++) {60        hihats[0][i] = defaultPattern && default_hithat[i];61        hihats[1][i] = false;62    }63    if (defaultPattern)64        return;65    let accent = Math.round(Math.random() * 10) / 1066    let downbeat;67    for (let i = 0; i < 4; i++) {68        downbeat = i * 4;69        hihats[openhh][downbeat] = this.rand.nextInt(20) > 0;70        hihats[openhh][downbeat + 16] = this.rand.nextInt(20) > 0;71        if (this.rand.nextInt(5) > 0) {72            tmpopensubs = (opensubs == 1 && this.rand.nextBoolean()) ? 1 : 0;73            hihats[tmpopensubs][downbeat + 2] = true;74            hihats[tmpopensubs][downbeat + 2 + 16] = true;75            if (this.rand.nextBoolean()) {76                hihats[opensubs][downbeat + 1] = accent;77                hihats[opensubs][downbeat + 3] = accent;78                hihats[opensubs][downbeat + 1 + 16] = accent;79                hihats[opensubs][downbeat + 3 + 16] = accent;80            }81        }82    }83}84OMGBeatMaker.prototype.makeKickBeats = function (defaultPattern) {85    let kick = this.pattern[0];86    console.log(kick)87    if (defaultPattern) {88        for (let i = 0; i < this.totalSubbeats; i++) {89            kick[i] = default_kick[i];90        }91        return;92    }93    let p = this.rand.nextInt(10);94    for (let i = 0; i < this.totalSubbeats; i++) {95        kick[i] = p == 0 ? (this.rand.nextBoolean() && this.rand.nextBoolean()) :96                    p <  5  ? i % this.subbeats == 0 :97                    p <  9 ? i % 8 == 0 :98                            (i == 0 || i == 8 || i == 16);99        100    }101}102OMGBeatMaker.prototype.makeClapBeats = function (defaultPattern) {103    let clap = this.pattern[1];104    if (defaultPattern) {105        for (let i = 0; i < this.totalSubbeats; i++) {106            clap[i] = default_clap[i];107        }108        return;109    }110    let pattern = this.rand.nextInt(20);111//        clap = new boolean[beats * subbeats];112    let snareCutTime = false //this.rand.nextBoolean();113    for (let i = 0; i < this.totalSubbeats; i++) {114        clap[i] = pattern != 0 && (115            (!snareCutTime && i % (2 * this.subbeats) == this.subbeats) ||116                    (snareCutTime && i % (4 * this.subbeats) == (2 * this.subbeats))117        );118    }119}120OMGBeatMaker.prototype.getTrack = function (track)  {121    return this.pattern[track];122}123OMGBeatMaker.prototype.setPattern = function (track, subbeat, value) {124    this.pattern[track][subbeat] = value;125}126OMGBeatMaker.prototype.makeDrumBeat = function (part, beatParams) {127    this.subbeats = beatParams.subbeats128    this.totalSubbeats = beatParams.subbeats * beatParams.beats * beatParams.measures129    let tracks = part.data.tracks130    this.pattern = [131        tracks[0].data, 132        tracks[1].data, 133        tracks[2].data, 134        tracks[3].data, 135        tracks[4].data, 136        tracks[5].data, 137        tracks[6].data, 138        tracks[7].data139    ]140    //clearPattern();141    //half the time, drums from the bass142    if (false && this.this.rand.nextBoolean()) {143        this.makeDrumBeatsFromMelody(basslineChannel.getNotes());144    }145    else {146        // make them separate147        this.makeKickBeats(false);148        this.makeClapBeats(false);149        this.makeHiHatBeats(false);150    151        this.makeTomBeats();152    }153}154OMGBeatMaker.prototype.makeTomBeats = function () {155    //maybe none?156    if (this.rand.nextBoolean())157        return;158    if (this.rand.nextInt(5) > -1) {159        this.makeTomFill();160        return;161    }162    let toms = [this.pattern[5], this.pattern[6], this.pattern[7]];163    for (let ib = 0; ib < 4; ib++) {164    }165}166OMGBeatMaker.prototype.makeTomFill = function () {167    let everyBar = this.rand.nextBoolean();168    let toms = [this.pattern[5], this.pattern[6], this.pattern[7]];169    let start = 8;170    if (!everyBar && this.rand.nextInt(5) == 0) {171        start = 0;172    }173    let sparse = this.rand.nextBoolean();174    let on;175    let tom;176    for (let i = start; i < 16; i++) {177        on = (sparse && this.rand.nextBoolean()) ||178                (!sparse && (this.rand.nextBoolean() || this.rand.nextBoolean()));179        tom = this.rand.nextInt(3);180        if (everyBar) {181            toms[tom][i] = on;182        }183        toms[tom][i + 16] = on;184    }...

melody_maker.js

Source:melody_maker.js

2    this.rand = rand3}4OMGMelodyMaker.prototype.makeMelody = function (totalBeats, beatBias) {5    //50/50 use a motif6    if (this.rand.nextBoolean()) {7        return this.makeMelodyFromMotif(totalBeats);8    }9    // choose a duration to tend toward10    if (beatBias === -1.0) {11        let bbr = this.rand.nextInt(3);12        beatBias = bbr == 0 ? 0.250 : bbr == 1 ? 0.5 : 1.0;13    }14    let adjust = 0;15    let restRatio = 2 + this.rand.nextInt(10);16    let playedBeats = 0.0;17    let currentNoteDuration;18    let currentNoteNumber;19    let currentNote;20    let lastNote = 0;21    let notesAway;22    let goingUp = this.rand.nextBoolean();23    while (playedBeats < totalBeats) {24        currentNote = new Note();25        //currentNote.setBeatPosition(playedBeats);26        line.add(currentNote);27        currentNoteDuration = Math.min(getRandomNoteDuration(beatBias),28                totalBeats - playedBeats);29        currentNote.setBeats(currentNoteDuration);30        playedBeats += currentNoteDuration;31        // rest?32        if (this.rand.nextInt(restRatio) == 0) {33            currentNote.setRest(true);34            continue;35        }36        // play the last note37        if (this.rand.nextBoolean()) {38            currentNote.setBasicNote(adjust + lastNote);39            continue;40        }41        // maybe change the direction42        if (this.rand.nextBoolean()) {43            goingUp = this.rand.nextBoolean();44        }45        // play a different note46        notesAway = this.rand.nextBoolean() ? 1 : this.rand.nextBoolean() ? 2 : this.rand.nextBoolean() ? 3 : 1;47        if (!goingUp) {48            notesAway = notesAway * -1;49        }50        currentNoteNumber = lastNote + notesAway;51        currentNote.setBasicNote(adjust + currentNoteNumber);52        lastNote = currentNoteNumber;53    }54    // go backwards55    playedBeats = 0.0;56    if (this.rand.nextInt(3) == 0) {57        let line2 = [];58        for (let ii = line.size(); ii > 0; ii--) {59            currentNote = line.get(ii - 1);60            //currentNote.setBeatPosition(playedBeats);61            playedBeats += currentNote.beats;62            line2.add(currentNote);63        }64        line = line2;65    }66    currentMelody = line;67    return line;68}69OMGMelodyMaker.prototype.getRandomNoteDuration = function (beatBias) {70        if (this.rand.nextBoolean() ) {71            return beatBias;72        }73        // 50 50 chance we get an eighth note74        if (this.rand.nextBoolean())75            return 0.5;76        // quarter note77        if (this.rand.nextBoolean())78            return 1.0;79        // go for a sixteenth80        if (this.rand.nextBoolean())81            return 0.25;82        // try and eighth note again83        if (this.rand.nextBoolean())84            return 0.5;85        return beatBias;86    }87OMGMelodyMaker.prototype.makeMelodyFromMotif = function (motif,  totalbeats) {88    let ret = []89    let loops = totalbeats / 2;90    this.melodify(motif);91    let playedBeats = 0.0;92    let pattern = this.rand.nextInt(5);93    let note94    for (let i = 0; i < loops; i++) {95        if ((pattern > 2 && i%2==1)96                || (pattern == 2 && i == loops -1)97                || (pattern == 1 && i%2==0)) {98            if (this.rand.nextInt(4) > 0) {99                note = {}100                note.rest = true;101                note.beats = 2.0;102                ret.push(note);103            }104            else {105                note = {}106                Object.assign(note, motif[0])107                ret.push(note);108                let beatsFromFirstNote = note.beats;109                if (beatsFromFirstNote < 2.0) {110                    note = {};111                    note.rest = true;112                    note.beats = 2.0 - beatsFromFirstNote;113                    ret.push(note);114                }115            }116            playedBeats += 2.0;117        }118        else {119            for (let note of motif) {120                note = JSON.parse(JSON.stringify(note));121                ret.push(note);122                playedBeats += note.beats;123            }124        }125    }126    return ret;127}128// a 2 beat motif129OMGMelodyMaker.prototype.makeMotif = function () {130    let ret = []131    let beatsNeeded = 2.0;132    let beatsUsed = 0.0;133    let currentNote;134    let currentBeats;135    let beatBias;136    if (this.rand.nextBoolean()) {137        beatBias = 1;138    }139    else {140        beatBias = 0.5;141    }142    while (beatsUsed < beatsNeeded) {143        currentNote = {};144        // first note 1 in 6 on the downbeat145        if (beatsUsed == 0) {146            if (this.rand.nextInt(6) == 0) {147                currentNote.rest = true;148            }149            else {150                currentNote.note = 0151            }152        }153        else {154            if (this.rand.nextInt(3) == 0) {155                currentNote.rest = true;156            }157            else {158                currentNote.note = 0159            }160        }161        currentBeats = this.getRandomNoteDuration(beatBias);162        currentBeats = Math.min(currentBeats, beatsNeeded - beatsUsed);163        currentNote.beats = currentBeats;164        beatsUsed += currentBeats;165        ret.push(currentNote);166    }167    mCurrentMotif = ret;168    return ret;169}170OMGMelodyMaker.prototype.melodify = function (motif) {171    let lastNote = 0;172    let notesAway;173    let goingUp = this.rand.nextBoolean();174    let note;175    for (let i = 1; i < motif.length; i++) {176        note = motif[i];177        // play the last note178        if (this.rand.nextBoolean()) {179            note.note = lastNote;180            continue;181        }182        // maybe change the direction183        if (this.rand.nextBoolean()) {184            goingUp = this.rand.nextBoolean();185        }186        // play a different note187        notesAway = this.rand.nextBoolean() ? 1 : this.rand.nextBoolean() ? 2 : this.rand.nextBoolean() ? 3 : 1;188        if (!goingUp) {189            notesAway = notesAway * -1;190        }191        note.note = notesAway;192    }193    return motif;194}195OMGMelodyMaker.prototype.makeBassLine = function (motif, beats) {196    var out = []197    for (var i = 0; i < beats * 2; i++) {198        out.push({note:0, beats: 0.5})199    }200    return out201}

test-utils.ts

Source:test-utils.ts

...11 * a schedule with insufficient information so that the parser will error out.12 */13export function generateArbitraryIntervals(mrng: IRandomGenerator): ArbitraryIntervals {14  const ret = new Array<appscaling.ScalingInterval>();15  const absolute = mrng.nextBoolean();16  // Ascending or descending scaling17  const factor = (mrng.nextBoolean() ? 1 : -1) * (absolute ? 10 : 1);18  const bias = absolute ? 50 : 0;19  // Begin with a full schedule20  ret.push({ lower: 0, upper: 10, change: -2 * factor + bias });21  ret.push({ lower: 10, upper: 20, change: -1 * factor + bias });22  ret.push({ lower: 20, upper: 60, change: 0 + bias });23  ret.push({ lower: 60, upper: 80, change: 0 + bias });24  ret.push({ lower: 80, upper: 90, change: 1 * factor + bias });25  ret.push({ lower: 90, upper: Infinity, change: 2 * factor + bias });26  // Take away parts from this. First we see if we do something to the 0-change alarms.27  // The actions can be: remove it OR turn it into a regular change value.28  const noChanges = ret.filter(x => x.change === bias);29  if (!absolute) {30    if (mrng.nextBoolean()) {31      if (mrng.nextBoolean()) {32        ret.splice(ret.indexOf(noChanges[0]), 1);33      } else {34        noChanges[0] = { ...noChanges[0], change: -1 * factor + bias };35      }36    }37    if (mrng.nextBoolean()) {38      if (mrng.nextBoolean()) {39        ret.splice(ret.indexOf(noChanges[1]), 1);40      } else {41        noChanges[1] = { ...noChanges[1], change: 1 * factor + bias };42      }43    }44  } else {45    // In absolute mode both have to get the same treatment at the same time46    // otherwise we'll end up with a timeline with two gaps47    if (mrng.nextBoolean()) {48      ret.splice(ret.indexOf(noChanges[0]), 1);49      ret.splice(ret.indexOf(noChanges[1]), 1);50    } else {51      noChanges[0] = { ...noChanges[0], change: -1 * factor + bias };52      noChanges[1] = { ...noChanges[1], change: 1 * factor + bias };53    }54  }55  // We might also take away either the bottom or the upper half56  if (mrng.nextInt(0, 2) === 0) {57    const signToStrip = mrng.nextBoolean() ? -1 : 1;58    let ix = ret.findIndex(x => Math.sign(x.change - bias) === signToStrip);59    while (ix >= 0) {60      ret.splice(ix, 1);61      ix = ret.findIndex(x => Math.sign(x.change - bias) === signToStrip);62    }63  }64  // Then we're going to arbitrarily get rid of bounds in the most naive way possible65  const iterations = mrng.nextInt(0, 10);66  for (let iter = 0; iter < iterations; iter++) {67    const i = mrng.nextInt(0, ret.length - 1);68    if (mrng.nextBoolean()) {69      // scrap lower bound70      // okay if current interval has an upper bound AND the preceding interval has an upper bound71      if (ret[i].upper !== undefined && (i === 0 || ret[i - 1].upper !== undefined)) {72        ret[i] = { ...ret[i], lower: undefined };73      }74    } else {75      // scrap upper bound76      // okay if current interval has a lower bound AND the succeeding interval has a lower bound77      if (ret[i].lower !== undefined && (i === ret.length - 1 || ret[i + 1].lower !== undefined)) {78        ret[i] = { ...ret[i], upper: undefined };79      }80    }81  }82  return { absolute, intervals: ret };83}84export interface IRandomGenerator {85  nextBoolean(): boolean;86  nextInt(min: number, max: number): number;87}88export interface ArbitraryIntervals {89  readonly absolute: boolean;90  readonly intervals: appscaling.ScalingInterval[];...

Using AI Code Generation

1const fc = require("fast-check");2fc.assert(3  fc.property(fc.integer(), fc.integer(), (a, b) => {4    return a + b === b + a;5  })6);7fc.assert(8  fc.property(fc.integer(), fc.integer(), fc.integer(), (a, b, c) => {9    return a + (b + c) === (a + b) + c;10  })11);12fc.assert(13  fc.property(fc.integer(), fc.integer(), fc.integer(), (a, b, c) => {14    return a * (b * c) === (a * b) * c;15  })16);17fc.assert(18  fc.property(fc.integer(), fc.integer(), fc.integer(), (a, b, c) => {19    return a * (b + c) === a * b + a * c;20  })21);22fc.assert(23  fc.property(fc.integer(), fc.integer(), fc.integer(), (a, b, c) => {24    return a * (b + c) === a * b + a * c;25  })26);27fc.assert(28  fc.property(fc.integer(), fc.integer(), fc.integer(), (a, b, c) => {29    return a * (b + c) === a * b + a * c;30  })31);32fc.assert(33  fc.property(fc.integer(), fc.integer(), fc.integer(), (a, b, c) => {34    return a * (b + c) === a * b + a * c;35  })36);37fc.assert(38  fc.property(fc.integer(), fc.integer(), fc.integer(), (a, b, c) => {39    return a * (b + c) === a * b + a * c;40  })41);42fc.assert(43  fc.property(fc.integer(), fc.integer(), fc.integer(), (a, b, c) => {44    return a * (b + c) === a * b + a * c;45  })46);47fc.assert(48  fc.property(fc.integer(), fc.integer(), fc.integer(), (a, b, c) => {49    return a * (b + c) === a * b + a * c;50  })51);52fc.assert(53  fc.property(fc.integer(), fc.integer(), fc.integer(), (a, b, c) => {54    return a * (b + c) === a * b + a * c;55  })56);

Using AI Code Generation

1const fc = require('fast-check');2const { nextBoolean } = require('fast-check/lib/check/arbitrary/NextArbitrary');3const { Random } = require('fast-check/lib/random/generator/Random');4const { integer } = require('fast-check/lib/check/arbitrary/IntegerArbitrary');5const { cloneMethod } = require('fast-check/lib/check/symbols');6const { RandomType } = require('fast-check/lib/random/type/RandomType');7const { RandomArray } = require('fast-check/lib/random/array/RandomArray');

Using AI Code Generation

1const fc = require('fast-check');2const { nextBoolean } = require('fast-check/lib/arbitrary/boolean');3const { nextInteger } = require('fast-check/lib/arbitrary/integer');4const { nextFloat } = require('fast-check/lib/arbitrary/float');5const { nextString } = require('fast-check/lib/arbitrary/string');6const { nextDate } = require('fast-check/lib/arbitrary/date');7const { nextRecord } = require('fast-check/lib/arbitrary/record');8const { nextArray } = require('fast-check/lib/arbitrary/array');9const { nextTuple } = require('fast-check/lib/arbitrary/tuple');10const { nextSet } = require('fast-check/lib/arbitrary/set');11const { nextMap } = require('fast-check/lib/arbitrary/map');12const { nextConstant } = require('fast-check/lib/arbitrary/constant');13const { nextConstantFrom } = require('fast-check/lib/arbitrary/constantFrom');14const { nextOneof } = require('fast-check/lib/arbitrary/oneof');15const { nextSubarray } = require('fast-check/lib/arbitrary/subarray');16const { nextSubarrayBy } = require('fast-check/lib/arbitrary/subarrayBy');17const { nextSubarrayLength } = require('fast-check/lib/arbitrary/subarrayLength');18const { nextSubarrayLengthBy } = require('fast-check/lib/arbitrary/subarrayLengthBy');19const { nextObject } = require('fast-check/lib/arbitrary/object');20const { nextObjectWithConstraints } = require('fast-check/lib/arbitrary/objectWithConstraints');21const { nextObjectWithConstraintsBy } = require('fast-check/lib/arbitrary/objectWithConstraintsBy');22const { nextObjectBy } = require('fast-check/lib/arbitrary/objectBy');23const { nextObjectKeys } = require('fast-check/lib/arbitrary/objectKeys');24const { nextObjectKeysBy } = require('fast-check/lib/arbitrary/objectKeysBy');25const { nextObjectValues } = require('fast-check/lib/arbitrary/objectValues');26const { nextObjectValuesBy } = require('fast-check/lib/arbitrary/objectValuesBy');27const { nextObjectEntries } = require('fast-check/lib/arbitrary/objectEntries');28const { nextObjectEntriesBy } = require('fast-check/lib/arbitrary/objectEntriesBy');29const { nextUnicodeString } = require('fast-check/lib/arbitrary/unicodeString');30const { nextUnicodeJson } = require('

Using AI Code Generation

1import { fc } from './fast-check';2fc.assert(3  fc.property(fc.boolean(), fc.boolean(), (a, b) => {4    return a === a;5  })6);7fc.assert(8  fc.property(fc.boolean(), fc.boolean(), (a, b) => {9    return a === a;10  })11);

Using AI Code Generation

1const fc = require('fast-check');2describe('nextBoolean', () => {3  it('should always return true or false', () => {4    fc.assert(5      fc.property(fc.integer(), (seed) => {6        const mrng = fc.scenario().pureRandom(seed).nextRandom();7        const value = mrng.nextBoolean();8        return value === true || value === false;9      })10    );11  });12});

Using AI Code Generation

1const fc = require("fast-check");2const { nextBoolean } = require("fast-check");3const seed = Date.now();4const random = fc.random(seed);5console.log(nextBoolean(random));6console.log(nextBoolean(random));7console.log(nextBoolean(random));8console.log(nextBoolean(random));9console.log(nextBoolean(random));10const fc = require("fast-check");11const { nextBoolean } = require("fast-check");12const seed = Date.now();13const random = fc.random(seed);14console.log(nextBoolean(random));15console.log(nextBoolean(random));16console.log(nextBoolean(random));17console.log(nextBoolean(random));18console.log(nextBoolean(random));

Using AI Code Generation

1const fc = require('fast-check');2const { nextBoolean } = require('fast-check/lib/arbitrary/BooleanArbitrary.js');3const nextBooleanArb = nextBoolean();4nextBooleanArb.generate(fc.random());5const fc = require('fast-check-monorepo');6const { nextBoolean } = require('fast-check-monorepo/lib/arbitrary/BooleanArbitrary.js');7const nextBooleanArb = nextBoolean();8nextBooleanArb.generate(fc.random());9const fc = require('fast-check');10const { nextBoolean } = require('fast-check-monorepo/lib/arbitrary/BooleanArbitrary.js');11const nextBooleanArb = nextBoolean();12nextBooleanArb.generate(fc.random());

Using AI Code Generation

1const fc = require('fast-check');2const gen = fc.boolean();3const sample = gen.nextValue();4console.log(sample);5const fc = require('fast-check');6const sample = fc.nextValue(fc.boolean());7console.log(sample);8const fc = require('fast-check');9const sample = fc.sample(fc.boolean());10console.log(sample);11const fc = require('fast-check');12fc.assert(13  fc.property(fc.boolean(), (b) => {14    return b === true || b === false;15  })16);17const fc = require('fast-check');18fc.check(19  fc.property(fc.boolean(), (b) => {20    return b === true || b === false;21  })22);

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