//

// Note: This example test is leveraging the Mocha test framework.

// Please refer to their documentation on https://mochajs.org/ for help.

//

// Place this right on top

import { initialize } from './initialize';

// The module 'assert' provides assertion methods from node

import * as assert from 'assert';

// You can import and use all API from the 'vscode' module

// as well as import your extension to test it

import { IdDispenser } from '../client/common/idDispenser';

// Defines a Mocha test suite to group tests of similar kind together

suite('IdDispenser', () => {

test('Sequential generation', done => {

const idDispenser = new IdDispenser();

Array.from(new Array(50).keys()).forEach(i => {

let id = idDispenser.Allocate();

assert.equal(i, id, `Allocated Id is not ${id}`);

});

done();

});

test('Test reuse and new generation', done => {

const idDispenser = new IdDispenser();

Array.from(new Array(50).keys()).forEach(i => {

idDispenser.Allocate();

});

// Free up the numbers 25 to 29

// The new numbers allocated must be 25,26,27,28,29,50,51,52,53,54,55, etc

const idsToFree = [25, 26, 27, 28, 29];

idsToFree.forEach(id => idDispenser.Free(id));

// Now generate again

Array.from(new Array(10).keys()).forEach(i => {

let id = idDispenser.Allocate();

if (i < 5) {

assert.notEqual(idsToFree.indexOf(id), -1, 'Freed id not regenerated');

}

else {

assert.equal(id, 50 + i - idsToFree.length, 'Generated id not following expected pattern');

}

});

done();

});

});