text: /**
  * @license Apache-2.0
  *
  * Copyright (c) 2018 The Stdlib Authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
  *    http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
  
  'use strict';
  
  // MODULES //
  
  var bench = require( '@stdlib/bench' );
  var randu = require( '@stdlib/random-base-randu' );
  var pkg = require( './../package.json' ).name;
  var mapKeysAsync = require( './../lib' );
  
  
  // MAIN //
  
  bench( pkg, function benchmark( b ) {
  	var obj;
  	var i;
  
  	function transform( k, v, clbk ) {
  		setTimeout( onTimeout, 0 );
  		function onTimeout() {
  			clbk( null, k+':'+v );
  		}
  	}
  	obj = {
  		'a': 'beep',
  		'b': 'boop',
  		'c': 'foo',
  		'd': 'bar',
  		'e': randu()
  	};
  	i = 0;
  	b.tic();
  
  	return next();
  
  	function next( error ) {
  		i += 1;
  		if ( error ) {
  			b.fail( 'should not return an error' );
  		}
  		if ( i <= b.iterations ) {
  			obj.e = randu();
  			return mapKeysAsync( obj, transform, next );
  		}
  		b.toc();
  		b.pass( 'benchmark finished' );
  		b.end();
  	}
  });
  
  bench( pkg+':series=true', function benchmark( b ) {
  	var opts;
  	var obj;
  	var i;
  
  	function transform( k, v, clbk ) {
  		setTimeout( onTimeout, 0 );
  		function onTimeout() {
  			clbk( null, k+':'+v );
  		}
  	}
  	obj = {
  		'a': 'beep',
  		'b': 'boop',
  		'c': 'foo',
  		'd': 'bar',
  		'e': randu()
  	};
  	opts = {
  		'series': true
  	};
  	i = 0;
  	b.tic();
  
  	return next();
  
  	function next( error ) {
  		i += 1;
  		if ( error ) {
  			b.fail( 'should not return an error' );
  		}
  		if ( i <= b.iterations ) {
  			obj.e = randu();
  			return mapKeysAsync( obj, opts, transform, next );
  		}
  		b.toc();
  		b.pass( 'benchmark finished' );
  		b.end();
  	}
  });
  
  bench( pkg+':limit=3', function benchmark( b ) {
  	var opts;
  	var obj;
  	var i;
  
  	function transform( k, v, clbk ) {
  		setTimeout( onTimeout, 0 );
  		function onTimeout() {
  			clbk( null, k+':'+v );
  		}
  	}
  	obj = {
  		'a': 'beep',
  		'b': 'boop',
  		'c': 'foo',
  		'd': 'bar',
  		'e': randu()
  	};
  	opts = {
  		'limit': 3
  	};
  	i = 0;
  	b.tic();
  
  	return next();
  
  	function next( error ) {
  		i += 1;
  		if ( error ) {
  			b.fail( 'should not return an error' );
  		}
  		if ( i <= b.iterations ) {
  			obj.e = randu();
  			return mapKeysAsync( obj, opts, transform, next );
  		}
  		b.toc();
  		b.pass( 'benchmark finished' );
  		b.end();
  	}
  });
  