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Code Issues Releases Wiki Activity

Beef up unit test coverage in io package.

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This commit is contained in:
Jeff Schiller 2023-11-20 22:44:41 -08:00
parent 5c4a085292
commit 2ed482879f
8 changed files with 164 additions and 25 deletions
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41
tests/io-bytebuffer.spec.js
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@ -7,31 +7,41 @@
*/
import { ByteBuffer } from '../io/bytebuffer.js';
import { ByteStream } from '../io/bytestream.js';
import 'mocha';
import { expect } from 'chai';
// TODO: Only test ByteBuffer here.
describe('bitjs.io.ByteBuffer', () => {
/** @type {ByteBuffer} */
let buffer;
beforeEach(() => {
buffer = new ByteBuffer(4);
});
it('Write_SingleByte', () => {
buffer.writeNumber(192, 1);
expect(buffer.ptr).equals(1);
it('throws when initialized incorrectly', () => {
expect(() => new ByteBuffer()).throws();
});
it('Write_SingleByteNegativeNumber', () => {
it('insertByte()', () => {
buffer.insertByte(192);
expect(buffer.ptr).equals(1);
expect(buffer.data[0]).equals(192);
});
it('writeNumber() with a single unsigned byte', () => {
buffer.writeNumber(192, 1);
expect(buffer.ptr).equals(1);
expect(buffer.data[0]).equals(192);
});
it('writeNumber() with a single negative number', () => {
buffer.writeSignedNumber(-120, 1);
expect(buffer.ptr).equals(1);
expect(buffer.data[0]).equals(-120 & 0xff);
});
it('Write_MultiByteNumber', () => {
buffer.writeNumber(1234, 4);
const stream = new ByteStream(buffer.data.buffer);
expect(buffer.ptr).equals(4);
});
@ -51,4 +61,21 @@ describe('bitjs.io.ByteBuffer', () => {
it('WriteOverflowSignedNegative', () => {
expect(() => buffer.writeSignedNumber(-129, 1)).throws();
});
it('throws when trying to write invalid # of bytes', () => {
expect(() => buffer.writeNumber(3, -1)).throws();
expect(() => buffer.writeNumber(-3, 1)).throws();
expect(() => buffer.writeSignedNumber(-3, -1)).throws();
});
it('writes an ASCII string', () => {
buffer.writeASCIIString('hi');
expect(buffer.ptr).equals(2);
expect(buffer.data[0]).equals('h'.charCodeAt(0));
expect(buffer.data[1]).equals('i'.charCodeAt(0));
});
it('throws in a non-ASCII string', () => {
expect(() => buffer.writeASCIIString('Björk')).throws('Trying to write a non-ASCII string');
});
});