lab3

.eslintrc

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+{
+  "rules": {
+    "no-console": "off",
+    "indent": [ "error", 2 ],
+    "quotes": [ "error", "single" ],
+    "semi": ["error", "always"],
+    "linebreak-style": [ "error", "unix" ]
+  },
+  "env": {
+    "es6": true,
+    "node": true,
+    "mocha": true,
+    "jasmine": true
+  },
+  "ecmaFeatures": {
+    "modules": true,
+    "experimentalObjectRestSpread": true,
+    "impliedStrict": true
+  },
+  "extends": "eslint:recommended"
+}

.gitignore

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+
+# Created by https://www.gitignore.io/api/node,vim,osx,macos,linux
+
+### Linux ###
+*~
+
+# temporary files which can be created if a process still has a handle open of a deleted file
+.fuse_hidden*
+
+# KDE directory preferences
+.directory
+
+# Linux trash folder which might appear on any partition or disk
+.Trash-*
+
+# .nfs files are created when an open file is removed but is still being accessed
+.nfs*
+
+### macOS ###
+*.DS_Store
+.AppleDouble
+.LSOverride
+
+# Icon must end with two \r
+Icon
+
+
+# Thumbnails
+._*
+
+# Files that might appear in the root of a volume
+.DocumentRevisions-V100
+.fseventsd
+.Spotlight-V100
+.TemporaryItems
+.Trashes
+.VolumeIcon.icns
+.com.apple.timemachine.donotpresent
+
+# Directories potentially created on remote AFP share
+.AppleDB
+.AppleDesktop
+Network Trash Folder
+Temporary Items
+.apdisk
+
+### Node ###
+# Logs
+logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+
+# Runtime data
+pids
+*.pid
+*.seed
+*.pid.lock
+
+# Directory for instrumented libs generated by jscoverage/JSCover
+lib-cov
+
+# Coverage directory used by tools like istanbul
+coverage
+
+# nyc test coverage
+.nyc_output
+
+# Grunt intermediate storage (http://gruntjs.com/creating-plugins#storing-task-files)
+.grunt
+
+# Bower dependency directory (https://bower.io/)
+bower_components
+
+# node-waf configuration
+.lock-wscript
+
+# Compiled binary addons (http://nodejs.org/api/addons.html)
+build/Release
+
+# Dependency directories
+node_modules/
+jspm_packages/
+
+# Typescript v1 declaration files
+typings/
+
+# Optional npm cache directory
+.npm
+
+# Optional eslint cache
+.eslintcache
+
+# Optional REPL history
+.node_repl_history
+
+# Output of 'npm pack'
+*.tgz
+
+# Yarn Integrity file
+.yarn-integrity
+
+# dotenv environment variables file
+.env
+
+
+### OSX ###
+
+# Icon must end with two \r
+
+
+# Thumbnails
+
+# Files that might appear in the root of a volume
+
+# Directories potentially created on remote AFP share
+
+### Vim ###
+# swap
+[._]*.s[a-v][a-z]
+[._]*.sw[a-p]
+[._]s[a-v][a-z]
+[._]sw[a-p]
+# session
+Session.vim
+# temporary
+.netrwhist
+# auto-generated tag files
+tags
+
+# End of https://www.gitignore.io/api/node,vim,osx,macos,linux

data/one.txt

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+Ah, You think darkness is your ally

data/three.txt

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+I was born in it, molded by it.  By the time I saw the light it only blinded me!

data/two.txt

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+You've merely adapted to the dark..

gulpfile.js

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+'use strict';
+
+const gulp = require('gulp');
+const eslint = require('gulp-eslint');
+const mocha = require ('gulp-mocha');
+
+gulp.task('test', function(){
+  gulp.src('./test/*-test.js', { read: false})
+  .pipe(mocha({ reporter: 'spec'}));
+});
+
+gulp.task('lint', function() {
+  return gulp.src(['**/*.js', '!node_modules'])
+  .pipe(eslint())
+  .pipe(eslint.format())
+  .pipe(eslint.failAfterError());
+});
+
+gulp.task('dev', function(){
+  gulp.watch(['**/*.js', '!node_modules/**'], ['lint', 'test']);
+});
+
+gulp.task('default', ['dev']);

index.js

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+'use strict';
+
+const fs = require('fs');
+
+fs.readFile(`${__dirname}/data/one.txt`, function(err, data) {
+  if (err) throw err;
+  console.log('content:', data.toString());
+});

lib/read-file.js

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+'use strict';
+
+const fs = require('fs');
+
+const readFileHelper = module.exports = function(pathArray, callback) {
+  var result = [];
+
+  fs.readFile(pathArray[0], function(err, data) {
+    if (err) return callback(err);
+    result.push(data.toString('hex', 0, 8));
+    fs.readFile(pathArray[1], function(err, data){
+      if (err) return callback(err);
+      result.push(data.toString('hex', 0, 8));
+      fs.readFile(pathArray[2], function(err, data){
+        if (err) return callback(err);
+        result.push(data.toString('hex', 0, 8));
+        console.log('my resultz:', result);
+        callback(null, result);
+    });
+  });
+});
+};

package.json

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+{
+  "name": "03-parallel_file_processing",
+  "version": "1.0.0",
+  "description": "![CF](https://camo.githubusercontent.com/70edab54bba80edb7493cad3135e9606781cbb6b/687474703a2f2f692e696d6775722e636f6d2f377635415363382e706e67) Lab 03: Parallel File Processing ===",
+  "main": "index.js",
+  "directories": {
+    "test": "test"
+  },
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/jtwalters25/03-parallel_file_processing.git"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC",
+  "bugs": {
+    "url": "https://github.com/jtwalters25/03-parallel_file_processing/issues"
+  },
+  "homepage": "https://github.com/jtwalters25/03-parallel_file_processing#readme",
+  "devDependencies": {
+    "chai": "^3.5.0",
+    "mocha": "^3.2.0"
+  }
+}

test/file-reader-test.js

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+'use strict'
+
+const expect = require('chai').expect;
+const fileReader = require('../lib/read-file.js');
+
+describe('File Reader Module', function() {
+  describe('with an improper file path', function() {
+    it('should return an error', function() {
+      fileReader([`${__dirname}/not-a-file.txt`], function(err) {
+        expect(err).to.equal(true);
+      });
+    });
+  });
+
+  describe('with a proper file path', function() {
+    before((done) => {
+      this.paths = [
+        `${__dirname}/../data/one.txt`,
+        `${__dirname}/../data/two.txt`,
+        `${__dirname}/../data/three.txt`
+      ];
+      done();
+    });
+
+    it ('should have correct order of hex strings', (done) => {
+      var expectedResult = ['41682c20596f7520','596f75277665206d', '492077617320626f'];
+      fileReader(this.paths, function(err, data){
+        expect(err).to.equal(null);
+        expect(data[0]).to.equal(expectedResult[0]);
+        expect(data[1]).to.equal(expectedResult[1]);
+        expect(data[2]).to.equal(expectedResult[2]);
+        console.log('data', data);
+        done();
+      });
+    });
+  });
+});