91 lines
2.3 KiB
JavaScript
91 lines
2.3 KiB
JavaScript
'use strict';
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const assert = require('assert');
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const { parse } = require('../lib/subprotocol');
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describe('subprotocol', () => {
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describe('parse', () => {
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it('parses a single subprotocol', () => {
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assert.deepStrictEqual(parse('foo'), new Set(['foo']));
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});
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it('parses multiple subprotocols', () => {
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assert.deepStrictEqual(
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parse('foo,bar,baz'),
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new Set(['foo', 'bar', 'baz'])
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);
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});
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it('ignores the optional white spaces', () => {
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const header = 'foo , bar\t, \tbaz\t , qux\t\t,norf';
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assert.deepStrictEqual(
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parse(header),
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new Set(['foo', 'bar', 'baz', 'qux', 'norf'])
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);
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});
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it('throws an error if a subprotocol is empty', () => {
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[
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[',', 0],
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['foo,,', 4],
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['foo, ,', 6]
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].forEach((element) => {
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assert.throws(
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() => parse(element[0]),
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new RegExp(
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`^SyntaxError: Unexpected character at index ${element[1]}$`
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)
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);
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});
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});
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it('throws an error if a subprotocol is duplicated', () => {
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['foo,foo,bar', 'foo,bar,foo'].forEach((header) => {
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assert.throws(
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() => parse(header),
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/^SyntaxError: The "foo" subprotocol is duplicated$/
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);
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});
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});
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it('throws an error if a white space is misplaced', () => {
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[
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['f oo', 2],
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[' foo', 0]
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].forEach((element) => {
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assert.throws(
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() => parse(element[0]),
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new RegExp(
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`^SyntaxError: Unexpected character at index ${element[1]}$`
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)
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);
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});
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});
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it('throws an error if a subprotocol contains invalid characters', () => {
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[
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['f@o', 1],
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['f\\oo', 1],
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['foo,b@r', 5]
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].forEach((element) => {
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assert.throws(
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() => parse(element[0]),
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new RegExp(
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`^SyntaxError: Unexpected character at index ${element[1]}$`
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)
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);
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});
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});
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it('throws an error if the header value ends prematurely', () => {
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['foo ', 'foo, ', 'foo,bar ', 'foo,bar,'].forEach((header) => {
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assert.throws(
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() => parse(header),
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/^SyntaxError: Unexpected end of input$/
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);
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});
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});
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});
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});
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