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How to use cNext method in fast-check-monorepo

Best JavaScript code snippet using fast-check-monorepo

JsonParser.ts

Source:JsonParser.ts

1///<reference path='refs.ts'/>2module TDev.RT {3    export class JsonParser4    {5        /// JSON parser trying to be more lenient than real JSON, mimicking what .NET does. This means we accept6        /// - single quoted or double quoted keys7        /// - unquoted keys, as long as they are letter, digit, _, -, ., +, -8        /// NOTE this does not match .NET exactly, as .NET uses Unicode characterization of IsNumberOrDigit.9        ///10        static parse(s: string, log? : (msg:string) => void) : JsonObject11        {12            var index = 0;13            var current = s[0];14            var onerror = function (m:string) :void {15                throw { message: m }16            };17            var cnext = function (expected:string) {18                if (expected != current) {19                    onerror(lf("got `{0}`, but expected `{1}`", current, expected));20                }21                current = s[++index];22                return current;23            };24            var parseNumber = function () : number {25                var value: number;26                var sofar = "";27                if (current === "-") {28                    sofar = "-";29                    cnext("-");30                }31                while (current >= "0" && current <= "9") {32                    sofar += current;33                    cnext(current);34                }35                if (current === ".") {36                    sofar += current;37                    while (cnext(current) && current >= "0" && current <= "9") {38                        sofar += current;39                    }40                }41                if (current === "E" || current === "e") {42                    sofar += current;43                    cnext(current);44                    if (current === "-" || current === "+") {45                        sofar += current;46                        cnext(current);47                    }48                    while (current >= "0" && current <= "9") {49                        sofar += current;50                        cnext(current);51                    }52                }53                value = +sofar;54                if (isNaN(value)) {55                    onerror(lf("not a number"));56                }57                return value;58            }59            var getQuoteChar = function() : string {60                if (current == '"') return current;61                if (current == "'") return current;62                onerror(lf("missing quote for string"));63            }64            var parseString = function () {65                var quote = getQuoteChar();66                var escapedChar=false;67                var sofar = "";68                while (cnext(current)) {69                    if (current === "\\") {70                        if (escapedChar) {71                            sofar += '\\';72                            escapedChar = false;73                        }74                        else {75                            escapedChar = true;76                        }77                        continue;78                    }79                    if (escapedChar) {80                        escapedChar = false;81                        if (current === '"' || current === "'" || current === "/") {82                            sofar += current;83                        }84                        else if (current === "b") {85                            sofar += "\b";86                        }87                        else if (current === "f") {88                            sofar += "\f";89                        }90                        else if (current === "n") {91                            sofar += "\n";92                        }93                        else if (current === "r") {94                            sofar += "\r";95                        }96                        else if (current === "t") {97                            sofar += "\t";98                        }99                        else if (current === "u") {100                            var value = 0;101                            for (var i = 0; i < 4; i++) {102                                var digit = parseInt(cnext(current), 16);103                                if (!isFinite(digit)) {104                                    break;105                                }106                                value = value * 16 + digit;107                            }108                            sofar += String.fromCharCode(value);109                        }110                        else {111                            onerror(lf("bad escaped char: {0}", current));112                        }113                    }114                    else {115                        if (current === quote) {116                            cnext(quote);117                            return sofar;118                        }119                        sofar += current;120                    }121                }122                onerror(lf("non-terminated string"));123            }124            var skipWhiteSpace = function () {125                while (current && current <= " ") {126                    cnext(current);127                }128            }129            var parsePrimitiveToken = function() {130                var sofar = "";131                while (current) {132                    if (current >= "0" && current <= "9" || current >= "a" && current <= "z" || current >= "A" && current <= "Z" || current === "." || current === "-" || current === "_" || current === "+") {133                        sofar += current;134                        cnext(current);135                    }136                    else {137                        break;138                    }139                }140                return sofar;141            }142            var parsePrimitive = function () : any {143                switch (current) {144                    case 't':145                        cnext("t");146                        cnext("r");147                        cnext("u");148                        cnext("e");149                        return true;150                    case 'f':151                        cnext("f");152                        cnext("a");153                        cnext("l");154                        cnext("s");155                        cnext("e");156                        return false;157                    case 'n':158                        cnext("n");159                        cnext("u");160                        cnext("l");161                        cnext("l");162                        return null;163                }164                onerror("expected true, false, or null at \n"165                       +"      " + s.slice(Math.max(0, index - 20), index) + "\n"166                       +" ---->" + s.slice(index + 1, Math.min(s.length, index + 20)));167            }168            var parseArray : () => any[] = function() {169                var result = [];170                cnext('[');171                skipWhiteSpace();172                if (current === ']') {173                    cnext(']');174                    return result;175                }176                while (current) {177                    result.push(parseValue());178                    skipWhiteSpace();179                    if (current === ']') {180                        cnext(']');181                        return result;182                    }183                    cnext(",");184                    skipWhiteSpace();185                }186                onerror(lf("incomplete array"));187                return result;188            }189            var parseValue : () => any = function (){190                skipWhiteSpace();191                switch (current) {192                    case '{': return parseObject();193                    case '[': return parseArray();194                    case '"':195                    case "'":196                        return parseString();197                    case '-':198                        return parseNumber();199                    default:200                        if (current >= '0' && current <= '9') return parseNumber();201                        else return parsePrimitive();202                }203            }204            var parseObject = function (): any {205                var result = {};206                cnext("{");207                skipWhiteSpace();208                if (current === "}") {209                    cnext("}");210                    return result;211                }212                var key: string;213                while (current) {214                    if (current === "'" || current === '"') {215                        key = parseString();216                    }217                    else {218                        key = parsePrimitiveToken();219                    }220                    if (key === null || key === undefined) {221                        onerror(lf("bad key"));222                    }223                    skipWhiteSpace();224                    cnext(":");225                    result[key] = parseValue();226                    skipWhiteSpace();227                    if (current === "}") {228                        cnext("}");229                        return result;230                    }231                    cnext(",");232                    skipWhiteSpace();233                }234                onerror(lf("incomplete object"));235            }236            try {237                return JsonObject.wrap(JSON.parse(s))238            } catch (e) {239                try {240                    var value = parseValue();241                    skipWhiteSpace();242                    if (current) {243                        onerror(lf("illegal json value"));244                    }245                    var js = JsonObject.wrap(value);246                    return js;247                }248                catch(e)249                {250                    if (log)251                        log(lf("error parsing json {0} {1}", s.length > 100 ? s.slice(0,100) + "..." : s, e.message));252                    return undefined;253                }254            }255        }256    }...

search.js

Source:search.js

1function dfs(init, adj, goalTest) {2    let stack = [init];3    let visited = {init: null};4    while(stack.length > 0) {5        // Apply DFS strategy to expand node6        let cnode = stack.pop();7        // Check if cnode is the goal8        if (goalTest(cnode)) {9            return pathToGoal(init, cnode, visited);10        }11        // Iterate on the list of adjacent nodes12        for (let cnext of adj(cnode)) {13            if(!(cnext in visited)) {14                visited[cnext] = cnode;15                stack.push(cnext);16            }17        }18    }19    return null;20}21function bfs(init, adj, goalTest) {22    let queue = [init];23    let visited = {init: null};24    while(queue.length > 0) {25        // Apply DFS strategy to expand node26        let cnode = queue.shift();27        // Check if cnode is the goal28        if (goalTest(cnode)) {29            return pathToGoal(init, cnode, visited);30        }31        // Iterate on the list of adjacent nodes32        for (let cnext of adj(cnode)) {33            if(!(cnext in visited)) {34                visited[cnext] = cnode;35                queue.push(cnext);36            }37        }38    }39    return null;40}41function pathToGoal(init, goal, visited) {42    let path = [goal];43    let n = goal;44    while(n != init) {45        n = visited[n];46        path.push(n);47    }48    return path;...

Using AI Code Generation

1const fc = require('fast-check');2fc.assert(fc.property(fc.integer(), fc.integer(), fc.integer(), (a, b, c) => {3    if (a > b) {4        return;5    }6    if (b > c) {7        return;8    }9    if (a > c) {10        fc.cNext('a > c');11    }12}));

Using AI Code Generation

1const fc = require('fast-check');2const { cNext } = require('fast-check-monorepo');3fc.assert(4  fc.property(fc.integer(), (n) => {5    const next = cNext(n);6    return next === n + 1;7  })8);9const fc = require('fast-check');10const { cNext } = require('fast-check-monorepo');11fc.assert(12  fc.property(fc.integer(), (n) => {13    const next = cNext(n);14    return next === n + 1;15  })16);

Using AI Code Generation

1const fc = require('fast-check');2const {cNext} = require('fast-check/lib/check/arbitrary/CNextArbitrary');3const {cNextInt} = require('fast-check/lib/check/arbitrary/CNextArbitrary');4const {cNextString} = require('fast-check/lib/check/arbitrary/CNextArbitrary');5const {cNextBool} = require('fast-check/lib/check/arbitrary/CNextArbitrary');6const {cNextDate} = require('fast-check/lib/check/arbitrary/CNextArbitrary');7const {cNextFloat} = require('fast-check/lib/check/arbitrary/CNextArbitrary');8const {cNextDouble} = require('fast-check/lib/check/arbitrary/CNextArbitrary');9const {cNextChar} = require('fast-check/lib/check/arbitrary/CNextArbitrary');10const {cNextUint8Array} = require('fast-check/lib/check/arbitrary/CNextArbitrary');11const {cNextUint32Array} = require('fast-check/lib/check/arbitrary/CNextArbitrary');12const {cNextUint16Array} = require('fast-check/lib/check/arbitrary/CNextArbitrary');13const {cNextUint8ClampedArray} = require('fast-check/lib/check/arbitrary/CNextArbitrary');14const {cNextInt8Array} = require('fast-check/lib/check/arbitrary/CNextArbitrary');15const {cNextInt16Array} = require('fast-check/lib/check/arbitrary/CNextArbitrary');16const {cNextInt32Array} = require('fast-check/lib/check/arbitrary/CNextArbitrary');17const {cNextFloat32Array} = require('fast-check/lib/check/arbitrary/CNextArbitrary');18const {cNextFloat64Array} = require('fast-check/lib/check/arbitrary/CNextArbitrary');19const {cNextBigInt64Array} = require('fast-check/lib/check/arbitrary/CNextArbitrary');20const {cNextBigUint64Array} = require('fast-check/lib/check/arbitrary/CNextArbitrary');21const {cNextUint8} = require('fast-check/lib/check/arbitrary/CNextArbitrary');22const {cNextUint16} = require('fast-check/lib/check/arbitrary/CNextArbitrary');23const {cNextUint32} = require('fast-check/lib/check/arbitrary/CNextArbitrary');24const {cNextInt8} = require('fast-check/lib/check/arbitrary/CNextArbitrary

Using AI Code Generation

1const { cNext } = require('fast-check-monorepo');2const fc = require('fast-check');3const c = cNext(fc);4const { property } = fc;5const { assert } = require('chai');6const add = (a, b) => a + b;7const sub = (a, b) => a - b;8describe('Addition', () => {9    it('should be commutative', () => {10        property(c.int, c.int, (a, b) => {11            assert.equal(add(a, b), add(b, a));12        });13    });14    it('should be associative', () => {15        property(c.int, c.int, c.int, (a, b, c) => {16            assert.equal(add(a, add(b, c)), add(add(a, b), c));17        });18    });19    it('should be distributive', () => {20        property(c.int, c.int, c.int, (a, b, c) => {21            assert.equal(add(a, sub(b, c)), sub(add(a, b), add(a, c)));22        });23    });24});25const { cNext } = require('fast-check-monorepo');26const fc = require('fast-check');27const c = cNext(fc);28const { property } = fc;29const { assert } = require('chai');30const add = (a, b) => a + b;31const sub = (a, b) => a - b;32describe('Addition', () => {33    it('should be commutative', () => {34        property(c.int, c.int, (a, b) => {35            assert.equal(add(a, b), add(b, a));36        });37    });38    it('should be associative', () => {39        property(c.int, c.int, c.int, (a, b, c) => {40            assert.equal(add(a, add(b, c)), add(add(a, b), c));41        });42    });43    it('should be distributive', () => {44        property(c.int, c.int, c.int, (a, b, c) => {45            assert.equal(add(a, sub(b, c)), sub(add(a, b), add(a, c)));46        });47    });48});

Using AI Code Generation

1const { cNext } = require('fast-check-monorepo');2const cNextTest = cNext({3  fn: (a, b) => a + b,4  pre: (a, b) => a >= 0 && b >= 0,5  post: (a, b, ret) => ret >= a && ret >= b,6});7cNextTest();

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