1  'use strict';
  2  
  3  var test = require('tape');
  4  
  5  var getSideChannelMap = require('../');
  6  
  7  test('getSideChannelMap', { skip: typeof Map !== 'function' }, function (t) {
  8  	var getSideChannel = getSideChannelMap || function () {
  9  		throw new EvalError('should never happen');
 10  	};
 11  
 12  	t.test('export', function (st) {
 13  		st.equal(typeof getSideChannel, 'function', 'is a function');
 14  
 15  		st.equal(getSideChannel.length, 0, 'takes no arguments');
 16  
 17  		var channel = getSideChannel();
 18  		st.ok(channel, 'is truthy');
 19  		st.equal(typeof channel, 'object', 'is an object');
 20  		st.end();
 21  	});
 22  
 23  	t.test('assert', function (st) {
 24  		var channel = getSideChannel();
 25  		st['throws'](
 26  			function () { channel.assert({}); },
 27  			TypeError,
 28  			'nonexistent value throws'
 29  		);
 30  
 31  		var o = {};
 32  		channel.set(o, 'data');
 33  		st.doesNotThrow(function () { channel.assert(o); }, 'existent value noops');
 34  
 35  		st.end();
 36  	});
 37  
 38  	t.test('has', function (st) {
 39  		var channel = getSideChannel();
 40  		/** @type {unknown[]} */ var o = [];
 41  
 42  		st.equal(channel.has(o), false, 'nonexistent value yields false');
 43  
 44  		channel.set(o, 'foo');
 45  		st.equal(channel.has(o), true, 'existent value yields true');
 46  
 47  		st.equal(channel.has('abc'), false, 'non object value non existent yields false');
 48  
 49  		channel.set('abc', 'foo');
 50  		st.equal(channel.has('abc'), true, 'non object value that exists yields true');
 51  
 52  		st.end();
 53  	});
 54  
 55  	t.test('get', function (st) {
 56  		var channel = getSideChannel();
 57  		var o = {};
 58  		st.equal(channel.get(o), undefined, 'nonexistent value yields undefined');
 59  
 60  		var data = {};
 61  		channel.set(o, data);
 62  		st.equal(channel.get(o), data, '"get" yields data set by "set"');
 63  
 64  		st.end();
 65  	});
 66  
 67  	t.test('set', function (st) {
 68  		var channel = getSideChannel();
 69  		var o = function () {};
 70  		st.equal(channel.get(o), undefined, 'value not set');
 71  
 72  		channel.set(o, 42);
 73  		st.equal(channel.get(o), 42, 'value was set');
 74  
 75  		channel.set(o, Infinity);
 76  		st.equal(channel.get(o), Infinity, 'value was set again');
 77  
 78  		var o2 = {};
 79  		channel.set(o2, 17);
 80  		st.equal(channel.get(o), Infinity, 'o is not modified');
 81  		st.equal(channel.get(o2), 17, 'o2 is set');
 82  
 83  		channel.set(o, 14);
 84  		st.equal(channel.get(o), 14, 'o is modified');
 85  		st.equal(channel.get(o2), 17, 'o2 is not modified');
 86  
 87  		st.end();
 88  	});
 89  
 90  	t.test('delete', function (st) {
 91  		var channel = getSideChannel();
 92  		var o = {};
 93  		st.equal(channel['delete']({}), false, 'nonexistent value yields false');
 94  
 95  		channel.set(o, 42);
 96  		st.equal(channel.has(o), true, 'value is set');
 97  
 98  		st.equal(channel['delete']({}), false, 'nonexistent value still yields false');
 99  
100  		st.equal(channel['delete'](o), true, 'deleted value yields true');
101  
102  		st.equal(channel.has(o), false, 'value is no longer set');
103  
104  		st.end();
105  	});
106  
107  	t.end();
108  });
109  
110  test('getSideChannelMap, no Maps', { skip: typeof Map === 'function' }, function (t) {
111  	t.equal(getSideChannelMap, false, 'is false');
112  
113  	t.end();
114  });