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add some basic tests

master
Conduitry 11 months ago
parent
commit
2f0f871342
  1. 4
      package.json
  2. 65
      test.js

4
package.json

@ -31,6 +31,8 @@
"scripts": {
"build": "rollup -c",
"dev": "rollup -cw",
"prepare": "npm run build"
"prepare": "npm run build",
"pretest": "npm run build",
"test": "node test.js"
}
}

65
test.js

@ -0,0 +1,65 @@
const assert = require('assert');
const fs = require('fs');
const { autocache } = require('.');
let count = 0;
const func = async () => {
count++;
return {};
};
(async () => {
await fs.promises.unlink('cache.test').catch(() => {});
{
// set value 1 and value 2 in mode 1
const { cache, close } = autocache('cache.test', 'm1');
assert.strictEqual(count, 0);
const v1a = await cache('v1', func);
assert.strictEqual(count, 1);
const v1b = await cache('v1', func);
assert.strictEqual(count, 1);
assert.strictEqual(v1a, v1b);
const v2 = await cache('v2', func);
assert.strictEqual(count, 2);
assert.notStrictEqual(v1a, v2);
close();
}
{
// open and close mode 2 - should not wipe values saved in mode 1
const { cache, close } = autocache('cache.test', 'm2');
close();
}
{
// check value 2 already exists in mode 2 (from mode 1)
const { cache, close } = autocache('cache.test', 'm2');
assert.strictEqual(count, 2);
const v2 = await cache('v2', func);
assert.strictEqual(count, 2);
close();
}
{
// check two parallel calls to value 3 (in mode 1) return the same value
// also clears value 1, which only exists in mode 1
const { cache, close } = autocache('cache.test', 'm1');
const [v3a, v3b] = await Promise.all([cache('v3', func), cache('v3', func)]);
assert.strictEqual(v3a, v3b);
close();
}
{
// check that value 1 no longer exists, but value 2 still does
const { cache, close } = autocache('cache.test', 'm2');
assert.strictEqual(count, 3);
const v1 = await cache('v1', func);
assert.strictEqual(count, 4);
const v2 = await cache('v2', func);
assert.strictEqual(count, 4);
close();
}
await fs.promises.unlink('cache.test').catch(() => {});
})();
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