How to use significand method in fast-check-monorepo

Best JavaScript code snippet using fast-check-monorepo

decimal128.js

Source:decimal128.js Github

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1'use strict';2var Long = require('./long');3var PARSE_STRING_REGEXP = /^(\+|-)?(\d+|(\d*\.\d*))?(E|e)?([-+])?(\d+)?$/;4var PARSE_INF_REGEXP = /^(\+|-)?(Infinity|inf)$/i;5var PARSE_NAN_REGEXP = /^(\+|-)?NaN$/i;6var EXPONENT_MAX = 6111;7var EXPONENT_MIN = -6176;8var EXPONENT_BIAS = 6176;9var MAX_DIGITS = 34;10// Nan value bits as 32 bit values (due to lack of longs)11var NAN_BUFFER = [12 0x7c,13 0x00,14 0x00,15 0x00,16 0x00,17 0x00,18 0x00,19 0x00,20 0x00,21 0x00,22 0x00,23 0x00,24 0x00,25 0x00,26 0x00,27 0x0028].reverse();29// Infinity value bits 32 bit values (due to lack of longs)30var INF_NEGATIVE_BUFFER = [31 0xf8,32 0x00,33 0x00,34 0x00,35 0x00,36 0x00,37 0x00,38 0x00,39 0x00,40 0x00,41 0x00,42 0x00,43 0x00,44 0x00,45 0x00,46 0x0047].reverse();48var INF_POSITIVE_BUFFER = [49 0x78,50 0x00,51 0x00,52 0x00,53 0x00,54 0x00,55 0x00,56 0x00,57 0x00,58 0x00,59 0x00,60 0x00,61 0x00,62 0x00,63 0x00,64 0x0065].reverse();66var EXPONENT_REGEX = /^([-+])?(\d+)?$/;67var utils = require('./parser/utils');68// Detect if the value is a digit69var isDigit = function(value) {70 return !isNaN(parseInt(value, 10));71};72// Divide two uint128 values73var divideu128 = function(value) {74 var DIVISOR = Long.fromNumber(1000 * 1000 * 1000);75 var _rem = Long.fromNumber(0);76 var i = 0;77 if (!value.parts[0] && !value.parts[1] && !value.parts[2] && !value.parts[3]) {78 return { quotient: value, rem: _rem };79 }80 for (i = 0; i <= 3; i++) {81 // Adjust remainder to match value of next dividend82 _rem = _rem.shiftLeft(32);83 // Add the divided to _rem84 _rem = _rem.add(new Long(value.parts[i], 0));85 value.parts[i] = _rem.div(DIVISOR).low_;86 _rem = _rem.modulo(DIVISOR);87 }88 return { quotient: value, rem: _rem };89};90// Multiply two Long values and return the 128 bit value91var multiply64x2 = function(left, right) {92 if (!left && !right) {93 return { high: Long.fromNumber(0), low: Long.fromNumber(0) };94 }95 var leftHigh = left.shiftRightUnsigned(32);96 var leftLow = new Long(left.getLowBits(), 0);97 var rightHigh = right.shiftRightUnsigned(32);98 var rightLow = new Long(right.getLowBits(), 0);99 var productHigh = leftHigh.multiply(rightHigh);100 var productMid = leftHigh.multiply(rightLow);101 var productMid2 = leftLow.multiply(rightHigh);102 var productLow = leftLow.multiply(rightLow);103 productHigh = productHigh.add(productMid.shiftRightUnsigned(32));104 productMid = new Long(productMid.getLowBits(), 0)105 .add(productMid2)106 .add(productLow.shiftRightUnsigned(32));107 productHigh = productHigh.add(productMid.shiftRightUnsigned(32));108 productLow = productMid.shiftLeft(32).add(new Long(productLow.getLowBits(), 0));109 // Return the 128 bit result110 return { high: productHigh, low: productLow };111};112var lessThan = function(left, right) {113 // Make values unsigned114 var uhleft = left.high_ >>> 0;115 var uhright = right.high_ >>> 0;116 // Compare high bits first117 if (uhleft < uhright) {118 return true;119 } else if (uhleft === uhright) {120 var ulleft = left.low_ >>> 0;121 var ulright = right.low_ >>> 0;122 if (ulleft < ulright) return true;123 }124 return false;125};126// var longtoHex = function(value) {127// var buffer = utils.allocBuffer(8);128// var index = 0;129// // Encode the low 64 bits of the decimal130// // Encode low bits131// buffer[index++] = value.low_ & 0xff;132// buffer[index++] = (value.low_ >> 8) & 0xff;133// buffer[index++] = (value.low_ >> 16) & 0xff;134// buffer[index++] = (value.low_ >> 24) & 0xff;135// // Encode high bits136// buffer[index++] = value.high_ & 0xff;137// buffer[index++] = (value.high_ >> 8) & 0xff;138// buffer[index++] = (value.high_ >> 16) & 0xff;139// buffer[index++] = (value.high_ >> 24) & 0xff;140// return buffer.reverse().toString('hex');141// };142// var int32toHex = function(value) {143// var buffer = utils.allocBuffer(4);144// var index = 0;145// // Encode the low 64 bits of the decimal146// // Encode low bits147// buffer[index++] = value & 0xff;148// buffer[index++] = (value >> 8) & 0xff;149// buffer[index++] = (value >> 16) & 0xff;150// buffer[index++] = (value >> 24) & 0xff;151// return buffer.reverse().toString('hex');152// };153/**154 * A class representation of the BSON Decimal128 type.155 *156 * @class157 * @param {Buffer} bytes a buffer containing the raw Decimal128 bytes.158 * @return {Double}159 */160var Decimal128 = function(bytes) {161 this._bsontype = 'Decimal128';162 this.bytes = bytes;163};164/**165 * Create a Decimal128 instance from a string representation166 *167 * @method168 * @param {string} string a numeric string representation.169 * @return {Decimal128} returns a Decimal128 instance.170 */171Decimal128.fromString = function(string) {172 // Parse state tracking173 var isNegative = false;174 var sawRadix = false;175 var foundNonZero = false;176 // Total number of significant digits (no leading or trailing zero)177 var significantDigits = 0;178 // Total number of significand digits read179 var nDigitsRead = 0;180 // Total number of digits (no leading zeros)181 var nDigits = 0;182 // The number of the digits after radix183 var radixPosition = 0;184 // The index of the first non-zero in *str*185 var firstNonZero = 0;186 // Digits Array187 var digits = [0];188 // The number of digits in digits189 var nDigitsStored = 0;190 // Insertion pointer for digits191 var digitsInsert = 0;192 // The index of the first non-zero digit193 var firstDigit = 0;194 // The index of the last digit195 var lastDigit = 0;196 // Exponent197 var exponent = 0;198 // loop index over array199 var i = 0;200 // The high 17 digits of the significand201 var significandHigh = [0, 0];202 // The low 17 digits of the significand203 var significandLow = [0, 0];204 // The biased exponent205 var biasedExponent = 0;206 // Read index207 var index = 0;208 // Trim the string209 string = string.trim();210 // Naively prevent against REDOS attacks.211 // TODO: implementing a custom parsing for this, or refactoring the regex would yield212 // further gains.213 if (string.length >= 7000) {214 throw new Error('' + string + ' not a valid Decimal128 string');215 }216 // Results217 var stringMatch = string.match(PARSE_STRING_REGEXP);218 var infMatch = string.match(PARSE_INF_REGEXP);219 var nanMatch = string.match(PARSE_NAN_REGEXP);220 // Validate the string221 if ((!stringMatch && !infMatch && !nanMatch) || string.length === 0) {222 throw new Error('' + string + ' not a valid Decimal128 string');223 }224 // Check if we have an illegal exponent format225 if (stringMatch && stringMatch[4] && stringMatch[2] === undefined) {226 throw new Error('' + string + ' not a valid Decimal128 string');227 }228 // Get the negative or positive sign229 if (string[index] === '+' || string[index] === '-') {230 isNegative = string[index++] === '-';231 }232 // Check if user passed Infinity or NaN233 if (!isDigit(string[index]) && string[index] !== '.') {234 if (string[index] === 'i' || string[index] === 'I') {235 return new Decimal128(utils.toBuffer(isNegative ? INF_NEGATIVE_BUFFER : INF_POSITIVE_BUFFER));236 } else if (string[index] === 'N') {237 return new Decimal128(utils.toBuffer(NAN_BUFFER));238 }239 }240 // Read all the digits241 while (isDigit(string[index]) || string[index] === '.') {242 if (string[index] === '.') {243 if (sawRadix) {244 return new Decimal128(utils.toBuffer(NAN_BUFFER));245 }246 sawRadix = true;247 index = index + 1;248 continue;249 }250 if (nDigitsStored < 34) {251 if (string[index] !== '0' || foundNonZero) {252 if (!foundNonZero) {253 firstNonZero = nDigitsRead;254 }255 foundNonZero = true;256 // Only store 34 digits257 digits[digitsInsert++] = parseInt(string[index], 10);258 nDigitsStored = nDigitsStored + 1;259 }260 }261 if (foundNonZero) {262 nDigits = nDigits + 1;263 }264 if (sawRadix) {265 radixPosition = radixPosition + 1;266 }267 nDigitsRead = nDigitsRead + 1;268 index = index + 1;269 }270 if (sawRadix && !nDigitsRead) {271 throw new Error('' + string + ' not a valid Decimal128 string');272 }273 // Read exponent if exists274 if (string[index] === 'e' || string[index] === 'E') {275 // Read exponent digits276 var match = string.substr(++index).match(EXPONENT_REGEX);277 // No digits read278 if (!match || !match[2]) {279 return new Decimal128(utils.toBuffer(NAN_BUFFER));280 }281 // Get exponent282 exponent = parseInt(match[0], 10);283 // Adjust the index284 index = index + match[0].length;285 }286 // Return not a number287 if (string[index]) {288 return new Decimal128(utils.toBuffer(NAN_BUFFER));289 }290 // Done reading input291 // Find first non-zero digit in digits292 firstDigit = 0;293 if (!nDigitsStored) {294 firstDigit = 0;295 lastDigit = 0;296 digits[0] = 0;297 nDigits = 1;298 nDigitsStored = 1;299 significantDigits = 0;300 } else {301 lastDigit = nDigitsStored - 1;302 significantDigits = nDigits;303 if (exponent !== 0 && significantDigits !== 1) {304 while (string[firstNonZero + significantDigits - 1] === '0') {305 significantDigits = significantDigits - 1;306 }307 }308 }309 // Normalization of exponent310 // Correct exponent based on radix position, and shift significand as needed311 // to represent user input312 // Overflow prevention313 if (exponent <= radixPosition && radixPosition - exponent > 1 << 14) {314 exponent = EXPONENT_MIN;315 } else {316 exponent = exponent - radixPosition;317 }318 // Attempt to normalize the exponent319 while (exponent > EXPONENT_MAX) {320 // Shift exponent to significand and decrease321 lastDigit = lastDigit + 1;322 if (lastDigit - firstDigit > MAX_DIGITS) {323 // Check if we have a zero then just hard clamp, otherwise fail324 var digitsString = digits.join('');325 if (digitsString.match(/^0+$/)) {326 exponent = EXPONENT_MAX;327 break;328 } else {329 return new Decimal128(utils.toBuffer(isNegative ? INF_NEGATIVE_BUFFER : INF_POSITIVE_BUFFER));330 }331 }332 exponent = exponent - 1;333 }334 while (exponent < EXPONENT_MIN || nDigitsStored < nDigits) {335 // Shift last digit336 if (lastDigit === 0) {337 exponent = EXPONENT_MIN;338 significantDigits = 0;339 break;340 }341 if (nDigitsStored < nDigits) {342 // adjust to match digits not stored343 nDigits = nDigits - 1;344 } else {345 // adjust to round346 lastDigit = lastDigit - 1;347 }348 if (exponent < EXPONENT_MAX) {349 exponent = exponent + 1;350 } else {351 // Check if we have a zero then just hard clamp, otherwise fail352 digitsString = digits.join('');353 if (digitsString.match(/^0+$/)) {354 exponent = EXPONENT_MAX;355 break;356 } else {357 return new Decimal128(utils.toBuffer(isNegative ? INF_NEGATIVE_BUFFER : INF_POSITIVE_BUFFER));358 }359 }360 }361 // Round362 // We've normalized the exponent, but might still need to round.363 if (lastDigit - firstDigit + 1 < significantDigits && string[significantDigits] !== '0') {364 var endOfString = nDigitsRead;365 // If we have seen a radix point, 'string' is 1 longer than we have366 // documented with ndigits_read, so inc the position of the first nonzero367 // digit and the position that digits are read to.368 if (sawRadix && exponent === EXPONENT_MIN) {369 firstNonZero = firstNonZero + 1;370 endOfString = endOfString + 1;371 }372 var roundDigit = parseInt(string[firstNonZero + lastDigit + 1], 10);373 var roundBit = 0;374 if (roundDigit >= 5) {375 roundBit = 1;376 if (roundDigit === 5) {377 roundBit = digits[lastDigit] % 2 === 1;378 for (i = firstNonZero + lastDigit + 2; i < endOfString; i++) {379 if (parseInt(string[i], 10)) {380 roundBit = 1;381 break;382 }383 }384 }385 }386 if (roundBit) {387 var dIdx = lastDigit;388 for (; dIdx >= 0; dIdx--) {389 if (++digits[dIdx] > 9) {390 digits[dIdx] = 0;391 // overflowed most significant digit392 if (dIdx === 0) {393 if (exponent < EXPONENT_MAX) {394 exponent = exponent + 1;395 digits[dIdx] = 1;396 } else {397 return new Decimal128(398 utils.toBuffer(isNegative ? INF_NEGATIVE_BUFFER : INF_POSITIVE_BUFFER)399 );400 }401 }402 } else {403 break;404 }405 }406 }407 }408 // Encode significand409 // The high 17 digits of the significand410 significandHigh = Long.fromNumber(0);411 // The low 17 digits of the significand412 significandLow = Long.fromNumber(0);413 // read a zero414 if (significantDigits === 0) {415 significandHigh = Long.fromNumber(0);416 significandLow = Long.fromNumber(0);417 } else if (lastDigit - firstDigit < 17) {418 dIdx = firstDigit;419 significandLow = Long.fromNumber(digits[dIdx++]);420 significandHigh = new Long(0, 0);421 for (; dIdx <= lastDigit; dIdx++) {422 significandLow = significandLow.multiply(Long.fromNumber(10));423 significandLow = significandLow.add(Long.fromNumber(digits[dIdx]));424 }425 } else {426 dIdx = firstDigit;427 significandHigh = Long.fromNumber(digits[dIdx++]);428 for (; dIdx <= lastDigit - 17; dIdx++) {429 significandHigh = significandHigh.multiply(Long.fromNumber(10));430 significandHigh = significandHigh.add(Long.fromNumber(digits[dIdx]));431 }432 significandLow = Long.fromNumber(digits[dIdx++]);433 for (; dIdx <= lastDigit; dIdx++) {434 significandLow = significandLow.multiply(Long.fromNumber(10));435 significandLow = significandLow.add(Long.fromNumber(digits[dIdx]));436 }437 }438 var significand = multiply64x2(significandHigh, Long.fromString('100000000000000000'));439 significand.low = significand.low.add(significandLow);440 if (lessThan(significand.low, significandLow)) {441 significand.high = significand.high.add(Long.fromNumber(1));442 }443 // Biased exponent444 biasedExponent = exponent + EXPONENT_BIAS;445 var dec = { low: Long.fromNumber(0), high: Long.fromNumber(0) };446 // Encode combination, exponent, and significand.447 if (448 significand.high449 .shiftRightUnsigned(49)450 .and(Long.fromNumber(1))451 .equals(Long.fromNumber)452 ) {453 // Encode '11' into bits 1 to 3454 dec.high = dec.high.or(Long.fromNumber(0x3).shiftLeft(61));455 dec.high = dec.high.or(456 Long.fromNumber(biasedExponent).and(Long.fromNumber(0x3fff).shiftLeft(47))457 );458 dec.high = dec.high.or(significand.high.and(Long.fromNumber(0x7fffffffffff)));459 } else {460 dec.high = dec.high.or(Long.fromNumber(biasedExponent & 0x3fff).shiftLeft(49));461 dec.high = dec.high.or(significand.high.and(Long.fromNumber(0x1ffffffffffff)));462 }463 dec.low = significand.low;464 // Encode sign465 if (isNegative) {466 dec.high = dec.high.or(Long.fromString('9223372036854775808'));467 }468 // Encode into a buffer469 var buffer = utils.allocBuffer(16);470 index = 0;471 // Encode the low 64 bits of the decimal472 // Encode low bits473 buffer[index++] = dec.low.low_ & 0xff;474 buffer[index++] = (dec.low.low_ >> 8) & 0xff;475 buffer[index++] = (dec.low.low_ >> 16) & 0xff;476 buffer[index++] = (dec.low.low_ >> 24) & 0xff;477 // Encode high bits478 buffer[index++] = dec.low.high_ & 0xff;479 buffer[index++] = (dec.low.high_ >> 8) & 0xff;480 buffer[index++] = (dec.low.high_ >> 16) & 0xff;481 buffer[index++] = (dec.low.high_ >> 24) & 0xff;482 // Encode the high 64 bits of the decimal483 // Encode low bits484 buffer[index++] = dec.high.low_ & 0xff;485 buffer[index++] = (dec.high.low_ >> 8) & 0xff;486 buffer[index++] = (dec.high.low_ >> 16) & 0xff;487 buffer[index++] = (dec.high.low_ >> 24) & 0xff;488 // Encode high bits489 buffer[index++] = dec.high.high_ & 0xff;490 buffer[index++] = (dec.high.high_ >> 8) & 0xff;491 buffer[index++] = (dec.high.high_ >> 16) & 0xff;492 buffer[index++] = (dec.high.high_ >> 24) & 0xff;493 // Return the new Decimal128494 return new Decimal128(buffer);495};496// Extract least significant 5 bits497var COMBINATION_MASK = 0x1f;498// Extract least significant 14 bits499var EXPONENT_MASK = 0x3fff;500// Value of combination field for Inf501var COMBINATION_INFINITY = 30;502// Value of combination field for NaN503var COMBINATION_NAN = 31;504// Value of combination field for NaN505// var COMBINATION_SNAN = 32;506// decimal128 exponent bias507EXPONENT_BIAS = 6176;508/**509 * Create a string representation of the raw Decimal128 value510 *511 * @method512 * @return {string} returns a Decimal128 string representation.513 */514Decimal128.prototype.toString = function() {515 // Note: bits in this routine are referred to starting at 0,516 // from the sign bit, towards the coefficient.517 // bits 0 - 31518 var high;519 // bits 32 - 63520 var midh;521 // bits 64 - 95522 var midl;523 // bits 96 - 127524 var low;525 // bits 1 - 5526 var combination;527 // decoded biased exponent (14 bits)528 var biased_exponent;529 // the number of significand digits530 var significand_digits = 0;531 // the base-10 digits in the significand532 var significand = new Array(36);533 for (var i = 0; i < significand.length; i++) significand[i] = 0;534 // read pointer into significand535 var index = 0;536 // unbiased exponent537 var exponent;538 // the exponent if scientific notation is used539 var scientific_exponent;540 // true if the number is zero541 var is_zero = false;542 // the most signifcant significand bits (50-46)543 var significand_msb;544 // temporary storage for significand decoding545 var significand128 = { parts: new Array(4) };546 // indexing variables547 i;548 var j, k;549 // Output string550 var string = [];551 // Unpack index552 index = 0;553 // Buffer reference554 var buffer = this.bytes;555 // Unpack the low 64bits into a long556 low =557 buffer[index++] | (buffer[index++] << 8) | (buffer[index++] << 16) | (buffer[index++] << 24);558 midl =559 buffer[index++] | (buffer[index++] << 8) | (buffer[index++] << 16) | (buffer[index++] << 24);560 // Unpack the high 64bits into a long561 midh =562 buffer[index++] | (buffer[index++] << 8) | (buffer[index++] << 16) | (buffer[index++] << 24);563 high =564 buffer[index++] | (buffer[index++] << 8) | (buffer[index++] << 16) | (buffer[index++] << 24);565 // Unpack index566 index = 0;567 // Create the state of the decimal568 var dec = {569 low: new Long(low, midl),570 high: new Long(midh, high)571 };572 if (dec.high.lessThan(Long.ZERO)) {573 string.push('-');574 }575 // Decode combination field and exponent576 combination = (high >> 26) & COMBINATION_MASK;577 if (combination >> 3 === 3) {578 // Check for 'special' values579 if (combination === COMBINATION_INFINITY) {580 return string.join('') + 'Infinity';581 } else if (combination === COMBINATION_NAN) {582 return 'NaN';583 } else {584 biased_exponent = (high >> 15) & EXPONENT_MASK;585 significand_msb = 0x08 + ((high >> 14) & 0x01);586 }587 } else {588 significand_msb = (high >> 14) & 0x07;589 biased_exponent = (high >> 17) & EXPONENT_MASK;590 }591 exponent = biased_exponent - EXPONENT_BIAS;592 // Create string of significand digits593 // Convert the 114-bit binary number represented by594 // (significand_high, significand_low) to at most 34 decimal595 // digits through modulo and division.596 significand128.parts[0] = (high & 0x3fff) + ((significand_msb & 0xf) << 14);597 significand128.parts[1] = midh;598 significand128.parts[2] = midl;599 significand128.parts[3] = low;600 if (601 significand128.parts[0] === 0 &&602 significand128.parts[1] === 0 &&603 significand128.parts[2] === 0 &&604 significand128.parts[3] === 0605 ) {606 is_zero = true;607 } else {608 for (k = 3; k >= 0; k--) {609 var least_digits = 0;610 // Peform the divide611 var result = divideu128(significand128);612 significand128 = result.quotient;613 least_digits = result.rem.low_;614 // We now have the 9 least significant digits (in base 2).615 // Convert and output to string.616 if (!least_digits) continue;617 for (j = 8; j >= 0; j--) {618 // significand[k * 9 + j] = Math.round(least_digits % 10);619 significand[k * 9 + j] = least_digits % 10;620 // least_digits = Math.round(least_digits / 10);621 least_digits = Math.floor(least_digits / 10);622 }623 }624 }625 // Output format options:626 // Scientific - [-]d.dddE(+/-)dd or [-]dE(+/-)dd627 // Regular - ddd.ddd628 if (is_zero) {629 significand_digits = 1;630 significand[index] = 0;631 } else {632 significand_digits = 36;633 i = 0;634 while (!significand[index]) {635 i++;636 significand_digits = significand_digits - 1;637 index = index + 1;638 }639 }640 scientific_exponent = significand_digits - 1 + exponent;641 // The scientific exponent checks are dictated by the string conversion642 // specification and are somewhat arbitrary cutoffs.643 //644 // We must check exponent > 0, because if this is the case, the number645 // has trailing zeros. However, we *cannot* output these trailing zeros,646 // because doing so would change the precision of the value, and would647 // change stored data if the string converted number is round tripped.648 if (scientific_exponent >= 34 || scientific_exponent <= -7 || exponent > 0) {649 // Scientific format650 string.push(significand[index++]);651 significand_digits = significand_digits - 1;652 if (significand_digits) {653 string.push('.');654 }655 for (i = 0; i < significand_digits; i++) {656 string.push(significand[index++]);657 }658 // Exponent659 string.push('E');660 if (scientific_exponent > 0) {661 string.push('+' + scientific_exponent);662 } else {663 string.push(scientific_exponent);664 }665 } else {666 // Regular format with no decimal place667 if (exponent >= 0) {668 for (i = 0; i < significand_digits; i++) {669 string.push(significand[index++]);670 }671 } else {672 var radix_position = significand_digits + exponent;673 // non-zero digits before radix674 if (radix_position > 0) {675 for (i = 0; i < radix_position; i++) {676 string.push(significand[index++]);677 }678 } else {679 string.push('0');680 }681 string.push('.');682 // add leading zeros after radix683 while (radix_position++ < 0) {684 string.push('0');685 }686 for (i = 0; i < significand_digits - Math.max(radix_position - 1, 0); i++) {687 string.push(significand[index++]);688 }689 }690 }691 return string.join('');692};693Decimal128.prototype.toJSON = function() {694 return { $numberDecimal: this.toString() };695};696module.exports = Decimal128;...

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index.ts

Source:index.ts Github

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...134 } else {135 throw new Error('The provided string is invalid.')136 }137 }138 get significand(): string {139 return this._significand140 }141 get exponent(): number {142 return this._exponent143 }144 get precision(): number {145 return this._precision146 }147 toString(): string {148 const significand = (149 parseInt(this.significand.slice(0, this.precision), 10) +150 (parseInt(this.significand[this.precision], 10) > 4 ? 1 : 0)151 ).toString()152 return (...

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Using AI Code Generation

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1const fc = require('fast-check');2const significand = require('fast-check-monorepo').significand;3const isSignificand = require('fast-check-monorepo').isSignificand;4const assert = require('assert');5const significands = significand();6fc.assert(fc.property(significands, (s) => {7 assert.ok(isSignificand(s));8}));

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Using AI Code Generation

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1const fc = require("fast-check");2const { significand } = require("fast-check/lib/arbitrary/SignificandArbitrary.js");3const mySignificand = significand();4fc.assert(5 fc.property(mySignificand, (s) => {6 const significand = s.toString();7 return significand.length > 0 && significand[0] !== "0";8 })9);10 [0] Expect property to hold for all values (after 1 shrinks) but it failed on: 0

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Using AI Code Generation

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1const {check} = require('fast-check');2const {significand} = require('fast-check/lib/numbers/significand.js');3const {isSignificand} = require('fast-check/lib/numbers/significand.js');4test('significand should return a number', () => {5 const arb = significand();6 const out = arb.generate(mrng()).value;7 expect(typeof out).toBe('number');8});9test('significand should return a number in the range 0 to 1', () => {10 const arb = significand();11 const out = arb.generate(mrng()).value;12 expect(out).toBeGreaterThanOrEqual(0);13 expect(out).toBeLessThanOrEqual(1);14});15test('significand should return a number with 17 significant digits', () => {16 const arb = significand();17 const out = arb.generate(mrng()).value;18 expect(out.toPrecision(17)).toBe(out);19});20test('significand should return a number with 16 significant digits', () => {21 const arb = significand();22 const out = arb.generate(mrng()).value;23 expect(out.toPrecision(16)).not.toBe(out);24});25test('significand should return a number with 18 significant digits', () => {26 const arb = significand();27 const out = arb.generate(mrng()).value;28 expect(out.toPrecision(18)).not.toBe(out);29});30test('significand should return a number with 17 significant digits', () => {31 const arb = significand();32 const out = arb.generate(mrng()).value;33 expect(out.toPrecision(17)).toBe(out);34});35test('significand should return a number with 17 significant digits', () => {36 const arb = significand();37 const out = arb.generate(mrng()).value

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Using AI Code Generation

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1const fc = require("fast-check-monorepo");2 .double()3 .noBias()4 .noShrink()5 .significand(2);6fc.assert(7 fc.property(arb, (num) => {8 const str = num.toString();9 return str.indexOf("e") === -1 && str.indexOf(".") === -1;10 })11);

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

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Using AI Code Generation

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1const {significand} = require('fast-check-monorepo');2significand(0.123456789, 3);3const {significand} = require('fast-check-monorepo');4significand(0.123456789, 3);5const {significand} = require('fast-check-monorepo');6significand(0.123456789, 3);7const {significand} = require('fast-check-monorepo');8significand(0.123456789, 3);9const {significand} = require('fast-check-monorepo');10significand(0.123456789, 3);11const {significand} = require('fast-check-monorepo');12significand(0.123456789, 3);13const {significand} = require('fast-check-monorepo');14significand(0.123456789, 3);15const {significand} = require('fast-check-monorepo');16significand(0.123456789, 3);17const {significand} = require('fast-check-monorepo');18significand(0.123456789, 3);

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Using AI Code Generation

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1const fc = require('fast-check');2const { significand } = require('fast-check/lib/arbitrary/SignificandArbitrary.js');3test('significand method returns a number', () => {4 expect(typeof significand()).toBe('number');5});6test('significand method returns a value between 1 and 0', () => {7 expect(significand()).toBeLessThan(1);8 expect(significand()).toBeGreaterThan(0);9});10test('significand method returns a value between 1 and 0', () => {11 expect(significand()).toBeLessThan(1);12 expect(significand()).toBeGreaterThan(0);13});14test('significand method returns a value between 1 and 0', () => {15 expect(significand()).toBeLessThan(1);16 expect(significand()).toBeGreaterThan(0);17});18test('significand method returns a value between 1 and 0', () => {19 expect(significand()).toBeLessThan(1);20 expect(significand()).toBeGreaterThan(0);21});22test('significand method returns a value between 1 and 0', () => {23 expect(significand()).toBeLessThan(1);24 expect(significand()).toBeGreaterThan(0);25});26test('significand method returns a value between 1 and 0', () => {27 expect(significand()).toBeLessThan(1);28 expect(significand()).toBeGreaterThan(0);29});30test('significand method returns a value between 1 and 0', () => {31 expect(significand()).toBeLessThan(1);32 expect(significand()).toBeGreaterThan(0);33});

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