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--- a/contexts/data/lib/closure-library/closure/goog/memoize/memoize_test.html
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-<!DOCTYPE html>
-<html>
-<!--
-Copyright 2008 The Closure Library Authors. All Rights Reserved.
-
-Use of this source code is governed by the Apache License, Version 2.0.
-See the COPYING file for details.
--->
-<head>
-<meta http-equiv="X-UA-Compatible" content="IE=edge">
-<title>Closure Unit Tests - goog.memoize</title>
-<script src="../base.js"></script>
-<script>
- goog.require('goog.memoize');
- goog.require('goog.testing.jsunit');
-</script>
-</head>
-<body>
-<script>
-
-function testNoArgs() {
- var called = 0;
- var f = goog.memoize(function() {
- called++;
- return 10;
- });
-
- assertEquals('f() 1st call', 10, f());
- assertEquals('f() 2nd call', 10, f());
- assertEquals('f() 3rd call', 10, f.call());
- assertEquals('f() called once', 1, called);
-}
-
-function testOneOptionalArgSimple() {
- var called = 0;
- var f = goog.memoize(function(opt_x) {
- called++;
- return arguments.length == 0 ? "no args" : opt_x;
- });
-
- assertEquals('f() 1st call', "no args", f());
- assertEquals('f() 2nd call', "no args", f());
- assertEquals('f(0) 1st call', 0, f(0));
- assertEquals('f(0) 2nd call', 0, f(0));
- assertEquals('f("") 1st call', '', f(''));
- assertEquals('f("") 2nd call', '', f(''));
- assertEquals('f("0") 1st call', '0', f('0'));
- assertEquals('f("0") 1st call', '0', f('0'));
- assertEquals('f(null) 1st call', null, f(null));
- assertEquals('f(null) 2nd call', null, f(null));
- assertEquals('f(undefined) 1st call', undefined, f(undefined));
- assertEquals('f(undefined) 2nd call', undefined, f(undefined));
-
- assertEquals('f(opt_x) called 6 times', 6, called);
-}
-
-function testProtoFunctions() {
- var fcalled = 0;
- var gcalled = 0;
- var Class = function(x) {
- this.x = x;
- this.f = goog.memoize(function(y) {
- fcalled++;
- return this.x + y;
- });
- };
- Class.prototype.g = goog.memoize(function(z) {
- gcalled++;
- return this.x - z;
- });
-
- var obj1 = new Class(10);
- var obj2 = new Class(20);
-
- assertEquals('10+1', 11, obj1.f(1));
- assertEquals('10+2', 12, obj1.f(2));
- assertEquals('10+2 again', 12, obj1.f(2));
- assertEquals('f called twice', 2, fcalled);
-
- assertEquals('10-1', 9, obj1.g(1));
- assertEquals('10-2', 8, obj1.g(2));
- assertEquals('10-2 again', 8, obj1.g(2));
- assertEquals('g called twice', 2, gcalled);
-
- assertEquals('20+1', 21, obj2.f(1));
- assertEquals('20+2', 22, obj2.f(2));
- assertEquals('20+2 again', 22, obj2.f(2));
- assertEquals('f called 4 times', 4, fcalled);
-
- assertEquals('20-1', 19, obj2.g(1));
- assertEquals('20-2', 18, obj2.g(2));
- assertEquals('20-2 again', 18, obj2.g(2));
- assertEquals('g called 4 times', 4, gcalled);
-}
-
-function testCustomSerializer() {
- var called = 0;
- var serializer = function(this_context, args) {
- return String(args[0].getTime());
- }
- var getYear = goog.memoize(function(date) {
- called++;
- return date.getFullYear();
- }, serializer);
-
- assertEquals('getYear(2008, 0, 1), 1st', 2008, getYear(new Date(2008, 0, 1)));
- assertEquals('getYear(2008, 0, 1), 2nd', 2008, getYear(new Date(2008, 0, 1)));
- assertEquals('getYear called once', 1, called);
-
- assertEquals('getYear(2007, 0, 1)', 2007, getYear(new Date(2007, 0, 1)));
- assertEquals('getYear called twice', 2, called);
-}
-
-function testClearCache() {
- var computed = 0;
- var identity = goog.memoize(function(x) {
- computed++;
- return x;
- });
- assertEquals('identity(1)==1', 1, identity(1));
- assertEquals('identity(1)==1', 1, identity(1));
- assertEquals('identity(1)==1', 1, identity(1));
- assertEquals('Expected memozation', 1, computed);
-
- goog.memoize.clearCache(goog.global);
- assertEquals('identity(1)==1', 1, identity(1));
- assertEquals('identity(1)==1', 1, identity(1));
- assertEquals('Expected cleared memoization cache', 2, computed);
-}
-
-function testDisableMemoize() {
- var computed = 0;
- var identity = goog.memoize(function(x) {
- computed++;
- return x;
- });
-
- assertEquals('return value on first call', 1, identity(1));
- assertEquals('return value on second call (memoized)', 1, identity(1));
- assertEquals('computed once', 1, computed);
-
- goog.memoize.ENABLE_MEMOIZE = false;
-
- try {
- assertEquals('return value after disabled memoization', 1, identity(1));
- assertEquals('computed again', 2, computed);
- } finally {
- goog.memoize.ENABLE_MEMOIZE = true;
- }
-
- assertEquals('return value after reenabled memoization', 1, identity(1));
- assertEquals('not computed again', 2, computed);
-}
-
-</script>
-</body>
-</html>