yomichan/test/test-cache-map.js

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/*
* Copyright (C) 2020-2021 Yomichan Authors
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
const assert = require('assert');
const {testMain} = require('../dev/util');
const {VM} = require('../dev/vm');
const vm = new VM({console});
vm.execute([
'mixed/js/cache-map.js'
]);
const CacheMap = vm.get('CacheMap');
function testConstructor() {
const data = [
[false, () => new CacheMap(0)],
[false, () => new CacheMap(1)],
[false, () => new CacheMap(Number.MAX_VALUE)],
[true, () => new CacheMap(-1)],
[true, () => new CacheMap(1.5)],
[true, () => new CacheMap(Number.NaN)],
[true, () => new CacheMap(Number.POSITIVE_INFINITY)],
[true, () => new CacheMap('a')]
];
for (const [throws, create] of data) {
if (throws) {
assert.throws(create);
} else {
assert.doesNotThrow(create);
}
}
}
function testApi() {
const data = [
{
maxSize: 1,
expectedSize: 0,
calls: []
},
{
maxSize: 10,
expectedSize: 1,
calls: [
{func: 'get', args: ['a1-b-c'], returnValue: void 0},
{func: 'has', args: ['a1-b-c'], returnValue: false},
{func: 'set', args: ['a1-b-c', 32], returnValue: void 0},
{func: 'get', args: ['a1-b-c'], returnValue: 32},
{func: 'has', args: ['a1-b-c'], returnValue: true}
]
},
{
maxSize: 10,
expectedSize: 2,
calls: [
{func: 'set', args: ['a1-b-c', 32], returnValue: void 0},
{func: 'get', args: ['a1-b-c'], returnValue: 32},
{func: 'set', args: ['a1-b-c', 64], returnValue: void 0},
{func: 'get', args: ['a1-b-c'], returnValue: 64},
{func: 'set', args: ['a2-b-c', 96], returnValue: void 0},
{func: 'get', args: ['a2-b-c'], returnValue: 96}
]
},
{
maxSize: 2,
expectedSize: 2,
calls: [
{func: 'has', args: ['a1-b-c'], returnValue: false},
{func: 'has', args: ['a2-b-c'], returnValue: false},
{func: 'has', args: ['a3-b-c'], returnValue: false},
{func: 'set', args: ['a1-b-c', 1], returnValue: void 0},
{func: 'has', args: ['a1-b-c'], returnValue: true},
{func: 'has', args: ['a2-b-c'], returnValue: false},
{func: 'has', args: ['a3-b-c'], returnValue: false},
{func: 'set', args: ['a2-b-c', 2], returnValue: void 0},
{func: 'has', args: ['a1-b-c'], returnValue: true},
{func: 'has', args: ['a2-b-c'], returnValue: true},
{func: 'has', args: ['a3-b-c'], returnValue: false},
{func: 'set', args: ['a3-b-c', 3], returnValue: void 0},
{func: 'has', args: ['a1-b-c'], returnValue: false},
{func: 'has', args: ['a2-b-c'], returnValue: true},
{func: 'has', args: ['a3-b-c'], returnValue: true}
]
}
];
for (const {maxSize, expectedSize, calls} of data) {
const cache = new CacheMap(maxSize);
assert.strictEqual(cache.maxSize, maxSize);
for (const call of calls) {
const {func, args} = call;
let returnValue;
switch (func) {
case 'get': returnValue = cache.get(...args); break;
case 'set': returnValue = cache.set(...args); break;
case 'has': returnValue = cache.has(...args); break;
case 'clear': returnValue = cache.clear(...args); break;
}
if (Object.prototype.hasOwnProperty.call(call, 'returnValue')) {
const {returnValue: expectedReturnValue} = call;
assert.deepStrictEqual(returnValue, expectedReturnValue);
}
}
assert.strictEqual(cache.size, expectedSize);
}
}
function main() {
testConstructor();
testApi();
}
if (require.main === module) { testMain(main); }