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How to use ChecksumError method in ava

Best JavaScript code snippet using ava

IntelHex.js

Source:IntelHex.js

1'use strict';2/*3*		Parse and verify Intel Hex4*		Derek K5*		etx313@gmail.com6*/7var IntelHex = (function() {8	/*9	*	@constructor10	*/11	function IntelHex(hexString){12		13		this.buffer = {};14		this.intelHexEnd = ':00000001FF';15		this.startAddress = 0;16		17		18		if(hexString) this.parse(hexString);19		20	}21	22	23	24	/*25	*	Parse loaded Hex into ArrayBuffer26	*	@param {String} hex27	*/28	IntelHex.prototype.parse = function(hex){29		30		var checksumError = -1,31				index = 0,32				bufferSize;33		34		// Fix any line ending weirdness35		hex = hex.replace(/\r?\n/g, "\r\n");36		37		// Determine buffer size38		var hexLines = hex.split('\r\n');39		40		// Start at the end and find the last memory address41		for(index=hexLines.length-1; index > -1; index--){42			var line = hexLines[index];43			if( line.length > 4 && line.slice(0,11) != this.intelHexEnd ){44				bufferSize = parseInt(line.slice(3,7), 16) + parseInt( line.slice(1,3), 16 );45				break;46			}47		}48		49		50		this.startAddress = parseInt( hexLines[0].slice(3,7), 16 );51		52		53		// Init a new buffer to hold the data54		this.buffer = new ArrayBuffer(bufferSize);55		var view = new Uint8Array(this.buffer);56		57		58		// Fill with FF59		for( index=0; index<bufferSize; index++ )60			view[index] = 0xFF;61		62		// Copy String data from hex file into the buffer63		hexLines.forEach((function(value, index, array){64	  	65	  	if( value.slice(0,11) == this.intelHexEnd || value.length < 2 )66	    	return;67	  	68	  	var size = parseInt( value.slice(1,3), 16 );69	  	var address = parseInt( value.slice(3,7), 16 );70			71			for(var i=0; i<size; i++)72				view[address+i] = parseInt(value.slice(9+(i*2), 11+(i*2)), 16);73			74			checksumError = !this.checksum(value) ? address : checksumError;75			76		}).bind(this));77		78		79		80		// Checksum error?81		if(checksumError > -1){82			console.log('checksumError', checksumError);83		}84		85		this.length = bufferSize;86		87	}88	89	90	91	92	93	/*94	*	Convert buffer back to Intel Hex String95	*	@param {Int} size 16 bit or 32 bit lines96	*/97	IntelHex.prototype.encode = function(size){98		// TODO99	}100	101	102	103	104	105	106	/*107	*	Verify checksum of a line from Intel Hex format.108	*	Checksum is verified by adding all hex values, excluding the checksum byte. 109	*	Then calculating the 2's complement and checking against the last byte of the value string110	*	@param {String} value111	* @return {Boolean} success / fail112	*/113	IntelHex.prototype.checksum = function(value){114	115		var sum = 0;116		117		var check = parseInt(value.slice(-2), 16);118		value = value.slice(1, value.length-2)119		120		for(var i=0; i<value.length; i+=2){121			sum += parseInt(value.slice(i, i+2), 16);122			}123		124		if( parseInt((~sum + 1 >>> 0).toString(16).slice(-2), 16) == check ){125			return true126		}else{127			console.log('invalid checksum:', value, check, parseInt((~sum + 1 >>> 0).toString(16).slice(-2), 16));128			return false;129			}130		131	}132	133	134	135	136	/*137	*	Return a slice of the ArrayBuffer138	*	@param {int} begin139	* @param {int} end Optional140	*/141	IntelHex.prototype.slice = function(start, end){142		return this.buffer.slice(start, end);143	}144	145	146	/*147	*	Return buffer length148	*	@param {int} begin149	* @param {int} end Optional150	*/151	IntelHex.prototype.length = function(){152		return this.buffer.length;153	}154	155	156	157	158	return IntelHex;159})();160/*161*	Parse loaded Hex into ArrayBuffer162*	@param {String} hex163*/164/*165function parseHex(hex){166	167	var deferred = $q.defer(),168			checksumError = -1;169	170			hexHashMap = {};171	172	// Fix any line ending weirdness173	hex = hex.replace(/\r?\n/g, "\r\n");174	175	angular.forEach(hex.split('\r\n'), function(value, key){176  	177  	if( value.slice(0,11) == intelHexEnd || value[0] != ':' || value.length < 1 )178    	return;179  	180  	181  	var size = parseInt( value.slice(1,3), 16 );182  	var address = parseInt( value.slice(3,7), 16 );183		var buffer = new ArrayBuffer(size);184		var view = new Uint8Array(buffer);185		186		for(var i=0; i<size; i++)187			view[i] = parseInt(value.slice(9+(i*2), 11+(i*2)), 16);188		189		checksumError = !checksum(value) ? address : checksumError;190		191		hexHashMap[ address ] = view;192		193		194	}, this);195	196	// Checksum error?197	if(checksumError > 0){198		console.log('checksumError', checksumError);199		$rootScope.$broadcast('FirmwareService.INTEL_HEX_INVALID', 'invalid checksum ' );200		deferred.reject();201	}202	203	console.log(hexHashMap);204	deferred.resolve();205	206	return deferred.promise;	207}208*/209		210		211		...

packetreader.js

Source:packetreader.js

...33            break;34          }35          this.packet.data = this._consume(this.packet.length);36          if (!this.packet.verifyChecksum()) {37            this.emit('error', new PacketReader.ChecksumError(this.packet));38            return;39          }40          this.emit('packet', this.packet);41          this.inBody = false;42        } else {43          if (!(this.buffer.length >= 24)) {44            break;45          }46          header = this._consume(24);47          this.packet = new Packet(header.readUInt32LE(0), header.readUInt32LE(4), header.readUInt32LE(8), header.readUInt32LE(12), header.readUInt32LE(16), header.readUInt32LE(20), new Buffer(0));48          if (!this.packet.verifyMagic()) {49            this.emit('error', new PacketReader.MagicError(this.packet));50            return;51          }52          if (this.packet.length === 0) {53            this.emit('packet', this.packet);54          } else {55            this.inBody = true;56          }57        }58      }59    }60  };61  PacketReader.prototype._appendChunk = function() {62    var chunk;63    if (chunk = this.stream.read()) {64      if (this.buffer) {65        return this.buffer = Buffer.concat([this.buffer, chunk], this.buffer.length + chunk.length);66      } else {67        return this.buffer = chunk;68      }69    } else {70      return null;71    }72  };73  PacketReader.prototype._consume = function(length) {74    var chunk;75    chunk = this.buffer.slice(0, length);76    this.buffer = length === this.buffer.length ? null : this.buffer.slice(length);77    return chunk;78  };79  return PacketReader;80})(EventEmitter);81PacketReader.ChecksumError = (function(superClass) {82  extend(ChecksumError, superClass);83  function ChecksumError(packet) {84    this.packet = packet;85    Error.call(this);86    this.name = 'ChecksumError';87    this.message = "Checksum mismatch";88    Error.captureStackTrace(this, PacketReader.ChecksumError);89  }90  return ChecksumError;91})(Error);92PacketReader.MagicError = (function(superClass) {93  extend(MagicError, superClass);94  function MagicError(packet) {95    this.packet = packet;96    Error.call(this);97    this.name = 'MagicError';...

errors.js

Source:errors.js

1/* jshint node:true */2var util = require('util');3var BadPacketError = exports.BadPacketError = function(msg, constr) {4  Error.captureStackTrace(this, constr || this);5  this.message = msg || 'BadPacketError';6};7util.inherits(BadPacketError, Error);8BadPacketError.prototype.name = 'BadPacketError';9var ChecksumError = exports.ChecksumError = function(msg, packetLength, constr) {10  Error.captureStackTrace(this, constr || this);11  this.message = msg || 'ChecksumError';12  this.packetLength = packetLength || 0;13};14util.inherits(ChecksumError, Error);...

Using AI Code Generation

1var checksum = require('checksum');2var fs = require('fs');3var path = require('path');4var file = path.join(__dirname, 'test.js');5checksum.file(file, function (err, sum) {6  if (err) {7    throw err;8  }9  console.log(sum);10  checksum.file(file, function (err, sum) {11    if (err instanceof checksum.ChecksumError) {12    }13  });14});

Using AI Code Generation

1var fs = require('fs');2var crypto = require('crypto');3var path = require('path');4var util = require('util');5var zlib = require('zlib');6var ReadStream = fs.ReadStream;7var WriteStream = fs.WriteStream;8var Transform = require('stream').Transform;9var ChecksumError = require('./checksum_error');10var readStream = new ReadStream(path.join(__dirname, 'data.txt'));11var checksum = crypto.createHash('sha1');12var transformStream = new Transform({13  transform: function(chunk, encoding, callback) {14    this.push(chunk);15    checksum.update(chunk);16    callback();17  }18});19var writeStream = new WriteStream(path.join(__dirname, 'data-copy.txt'));20var gzipStream = zlib.createGzip();21var unzipStream = zlib.createGunzip();22var checksumStream = new Transform({23  transform: function(chunk, encoding, callback) {24    checksum.update(chunk);25    this.push(chunk);26    callback();27  }28});29var checksumStream2 = new Transform({30  transform: function(chunk, encoding, callback) {31    checksum.update(chunk);32    this.push(chunk);33    callback();34  }35});36  .pipe(transformStream)37  .pipe(gzipStream)38  .pipe(unzipStream)39  .pipe(checksumStream)40  .pipe(writeStream)41  .on('finish', function() {42    var checksumValue = checksum.digest('hex');43    console.log('checksum', checksumValue);44  });45  .pipe(checksumStream2)46  .on('finish', function() {47    var checksumValue = checksum.digest('hex');48    console.log('checksum', checksumValue);49  });

Using AI Code Generation

1var ChecksumError = require('./error').ChecksumError;2var err = new ChecksumError('message', 'expected', 'actual');3console.log(err.message);4console.log(err.expected);5console.log(err.actual);6console.log(err.stack);

Using AI Code Generation

1var ChecksumError = require('./checksumerror.js');2var checksumError = new ChecksumError('ChecksumError', 'Invalid checksum');3console.log(checksumError.name);4console.log(checksumError.message);5console.log(checksumError.stack);6console.log(checksumError.toString());7console.log(checksumError instanceof Error);8console.log(checksumError instanceof ChecksumError);9var FileSizeError = require('./filesizeerror.js');10var fileSizeError = new FileSizeError('FileSizeError', 'File size exceeded');11console.log(fileSizeError.name);12console.log(fileSizeError.message);13console.log(fileSizeError.stack);14console.log(fileSizeError.toString());15console.log(fileSizeError instanceof Error);16console.log(fileSizeError instanceof FileSizeError);17var InvalidInputError = require('./invalidinputerror.js');18var invalidInputError = new InvalidInputError('InvalidInputError', 'Invalid input');19console.log(invalidInputError.name);20console.log(invalidInputError.message);21console.log(invalidInputError.stack);22console.log(invalidInputError.toString());23console.log(invalidInputError instanceof Error);24console.log(invalidInputError instanceof InvalidInputError);25var TimeoutError = require('./timeouterror.js');26var timeoutError = new TimeoutError('TimeoutError', 'Request timed out');27console.log(timeoutError.name);28console.log(timeoutError.message);29console.log(timeoutError.stack);30console.log(timeoutError.toString());31console.log(timeoutError instanceof Error);32console.log(timeoutError instanceof TimeoutError);33var UnknownError = require('./unknownerror.js');34var unknownError = new UnknownError('UnknownError', 'Unknown error occurred');35console.log(unknownError.name);36console.log(unknownError.message);37console.log(unknownError.stack);38console.log(unknownError.toString());39console.log(unknownError instanceof Error);40console.log(unknownError instanceof UnknownError);41var UnsupportedError = require('./unsupportederror.js');42var unsupportedError = new UnsupportedError('UnsupportedError', 'Unsupported operation');43console.log(unsupportedError.name);44console.log(unsupportedError.message);45console.log(unsupportedError.stack);46console.log(unsupportedError.toString());47console.log(unsupportedError instanceof Error);48console.log(unsupportedError instanceof UnsupportedError

Using AI Code Generation

1var fs = require('fs');2var data = 'This is a sample file';3fs.writeFile('sample.txt', data, (err) => {4    if (err) {5        console.log(err);6    } else {7        console.log('File written successfully\n');8        console.log('The written has the following contents:');9        console.log(fs.readFileSync('sample.txt', 'utf8'));10    }11});

Using AI Code Generation

1var checksum = require('./checksum.js');2var checksumError = checksum.ChecksumError;3var checksumError = new checksumError('Error Message');4console.log(checksumError.message);5console.log(checksumError.stack);6console.log(checksumError.name);7console.log(checksumError.toString());8var checksum = require('./checksum.js');9var checksumError = checksum.ChecksumError;10var checksumError = new checksumError('Error Message');11console.log(checksumError.message);12console.log(checksumError.stack);13console.log(checksumError.name);14console.log(checksumError.toString());15var checksum = require('./checksum.js');16var checksumError = checksum.ChecksumError;17var checksumError = new checksumError('Error Message');18console.log(checksumError.message);19console.log(checksumError.stack);20console.log(checksumError.name);21console.log(checksumError.toString());

Using AI Code Generation

1var checksum = require('./checksum.js');2var checksumError = checksum.ChecksumError;3var checksum = checksum.checksum;4var str = '123456789';5var str1 = '123456789';6var str2 = '1234567890';7var sum = checksum(str);8var sum1 = checksum(str1);9var sum2 = checksum(str2);10try {11    if(sum != sum1) {12        throw new checksumError('ChecksumError', 'checksums are not equal');13    }14    if(sum == sum2) {15        throw new checksumError('ChecksumError', 'checksums are equal');16    }17} catch (e) {18    console.log(e.name + ': ' + e.message);19}

Using AI Code Generation

1var ChecksumError = require('machinepack-checksum').errors.ChecksumError;2var newErr = new ChecksumError({3});4var newErr = new ChecksumError({5});6var newErr = new ChecksumError({7});8var newErr = new ChecksumError({9});10var newErr = new ChecksumError({11});12var newErr = new ChecksumError({13});14var newErr = new ChecksumError({15});16var newErr = new ChecksumError({17});

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