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joplin/CliClient/tests/ArrayUtils.js

53 lines
1.7 KiB
JavaScript

/* eslint-disable no-unused-vars */
require('app-module-path').addPath(__dirname);
const { time } = require('lib/time-utils.js');
const { asyncTest, fileContentEqual, setupDatabase, setupDatabaseAndSynchronizer, db, synchronizer, fileApi, sleep, clearDatabase, switchClient, syncTargetId, objectsEqual, checkThrowAsync } = require('test-utils.js');
const ArrayUtils = require('lib/ArrayUtils.js');
process.on('unhandledRejection', (reason, p) => {
console.log('Unhandled Rejection at: Promise', p, 'reason:', reason);
});
describe('ArrayUtils', function() {
beforeEach(async (done) => {
done();
});
it('should remove array elements', asyncTest(async () => {
let a = ['un', 'deux', 'trois'];
a = ArrayUtils.removeElement(a, 'deux');
expect(a[0]).toBe('un');
expect(a[1]).toBe('trois');
expect(a.length).toBe(2);
a = ['un', 'deux', 'trois'];
a = ArrayUtils.removeElement(a, 'not in there');
expect(a.length).toBe(3);
}));
it('should find items using binary search', asyncTest(async () => {
let items = ['aaa', 'ccc', 'bbb'];
expect(ArrayUtils.binarySearch(items, 'bbb')).toBe(-1); // Array not sorted!
items.sort();
expect(ArrayUtils.binarySearch(items, 'bbb')).toBe(1);
expect(ArrayUtils.binarySearch(items, 'ccc')).toBe(2);
expect(ArrayUtils.binarySearch(items, 'oops')).toBe(-1);
expect(ArrayUtils.binarySearch(items, 'aaa')).toBe(0);
items = [];
expect(ArrayUtils.binarySearch(items, 'aaa')).toBe(-1);
}));
it('should compare arrays', asyncTest(async () => {
expect(ArrayUtils.contentEquals([], [])).toBe(true);
expect(ArrayUtils.contentEquals(['a'], ['a'])).toBe(true);
expect(ArrayUtils.contentEquals(['b', 'a'], ['a', 'b'])).toBe(true);
expect(ArrayUtils.contentEquals(['b'], ['a', 'b'])).toBe(false);
}));
});