move datalayout to separate file for tests

src/backups.js

@@ -43,6 +43,7 @@ var addons = require('./addons.js'),
     crypto = require('crypto'),
     database = require('./database.js'),
     DatabaseError = require('./databaseerror.js'),
+    DataLayout = require('./datalayout.js'),
     debug = require('debug')('box:backups'),
     eventlog = require('./eventlog.js'),
     fs = require('fs'),
@@ -112,55 +113,6 @@ function api(provider) {
     }
 }
 
-class DataLayout {
-    constructor(localRoot, dirMap) {
-        assert.strictEqual(typeof localRoot, 'string');
-        assert(Array.isArray(dirMap), 'Expecting layout to be an array');
-
-        this._localRoot = localRoot;
-        this._dirMap = dirMap;
-        this._remoteRegexps = dirMap.map((l) => new RegExp('^\\./' + l.remoteDir + '/?'));
-        this._localRegexps = dirMap.map((l) => new RegExp('^' + l.localDir + '/?'));
-    }
-    toLocalPath(remoteName) {
-        assert.strictEqual(typeof remoteName, 'string');
-
-        for (let i = 0; i < this._remoteRegexps.length; i++) {
-            if (!remoteName.match(this._remoteRegexps[i])) continue;
-            return remoteName.replace(this._remoteRegexps[i], this._dirMap[i].localDir + '/'); // make paths absolute
-        }
-        return remoteName.replace(new RegExp('^\\.'), this._localRoot);
-    }
-    toRemotePath(localName) {
-        assert.strictEqual(typeof localName, 'string');
-
-        for (let i = 0; i < this._localRegexps.length; i++) {
-            if (!localName.match(this._localRegexps[i])) continue;
-            return localName.replace(this._localRegexps[i], './' + this._dirMap[i].remoteDir + '/'); // make paths relative
-        }
-        return localName.replace(new RegExp('^' + this._localRoot + '/?'), './');
-    }
-    localRoot() {
-        return this._localRoot;
-    }
-    getBasename() { // used to generate cache file names
-        return path.basename(this._localRoot);
-    }
-    toString() {
-        return JSON.stringify({ localRoot: this._localRoot, layout: this._dirMap });
-    }
-    localPaths() {
-        return [ this._localRoot ].concat(this._dirMap.map((l) => l.localDir));
-    }
-    directoryMap() {
-        return this._dirMap;
-    }
-    static fromString(str) {
-        const obj = JSON.parse(str);
-        return new DataLayout(obj.localRoot, obj.layout);
-    }
-}
-
 function testConfig(backupConfig, callback) {
     assert.strictEqual(typeof backupConfig, 'object');
     assert.strictEqual(typeof callback, 'function');