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var R = require('../source');var eq = require('./shared/eq');var fs = require('fs');var path = require('path');

function sourceMethods(dir) {  var isJsFile = function(file) { return file.match(/\.js$/); };  var isIndex = R.equals('index.js');  var removeJsEnding = function(file) { return file.replace('.js', ''); };  return fs.readdirSync(dir).filter(R.both(R.complement(isIndex), isJsFile)).map(removeJsEnding);}
/** * Convention is *  * Actual API—all `./es/*.js` files are top level API methods *  * Exported API—object in `./es/index.js` to be exported *  * Actual and exported APIs should be the same * * Two cases, when exported and actual APIs might differ *  1. newly added API `./es/method.js` is forgotten to be added into './es/index.js' *  2. API method is deprecated and actual source file from `./es/` removed, *     while continues to exist in `./es/index.js` * * 1st case is detected in first assertion, and detailed in second one * * 2st case doesnt need detection, because NodeJS will throw an error * if you would attempt to require non existing file */describe('API surface', function() {  if (typeof require.resolve !== 'function') {    return;  }  var exported = Object.keys(R).filter(function(key) {    return key !== '__esModule';  });  var actual = sourceMethods(path.dirname(require.resolve('../source')));
  it('both APIs are in sync', function() {    eq(actual.length, exported.length);  });
  it('list of not exported API methods is empty', function() {    function isNotExported(method) { return exported.indexOf(method) === -1; }    eq(actual.filter(isNotExported), []);  });});