81 lines
2.7 KiB
TypeScript
81 lines
2.7 KiB
TypeScript
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// Copyright 2022 The Pigweed Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License"); you may not
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// use this file except in compliance with the License. You may obtain a copy of
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// the License at
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//
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// https://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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// License for the specific language governing permissions and limitations under
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// the License.
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/* eslint-env browser */
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import {Frame, Encoder, Decoder} from 'pigweedjs/pw_hdlc';
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import {Detokenizer} from './detokenizer';
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const CSV = `
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64636261, ,"regular token"
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86fc33f3, ,"base64 token"
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0d6bd33c, ,"Regular Token: %s and Nested Token: %s"
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97185e6f, ,"(token: %s, string: %s, int: %d, float: %f)"
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451d86ed, ,"Cat"
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`;
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function generateFrame(text: string): Frame {
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const uintArray = new TextEncoder().encode(text);
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const encodedFrame = new Encoder().uiFrame(1, uintArray);
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const decodedFrames = Array.from(new Decoder().process(encodedFrame));
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return decodedFrames[0];
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}
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describe('Detokenizer', () => {
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let detokenizer: Detokenizer;
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beforeEach(() => {
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detokenizer = new Detokenizer(CSV);
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});
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it('parses a base64 correct frame properly', () => {
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const frame = generateFrame('$8zP8hg==');
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expect(detokenizer.detokenizeBase64(frame)).toEqual('base64 token');
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});
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it('parses a correct frame properly', () => {
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const frame = generateFrame('abcde');
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expect(detokenizer.detokenize(frame)).toEqual('regular token');
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});
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it('failure to detokenize returns original string', () => {
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expect(detokenizer.detokenize(generateFrame('aabbcc'))).toEqual('aabbcc');
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expect(detokenizer.detokenizeBase64(generateFrame('$8zP7hg=='))).toEqual(
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'$8zP7hg=='
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);
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});
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it('recursive detokenize all nested base64 tokens', () => {
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expect(
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detokenizer.detokenizeBase64(
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generateFrame(
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'$PNNrDQkkN1lZZFJRPT0lJGIxNFlsd2trTjFsWlpGSlJQVDBGUTJGdFpXeFlwSENkUHc9PQ=='
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)
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)
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).toEqual(
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'Regular Token: Cat and Nested Token: (token: Cat, string: Camel, int: 44, float: 1.2300000190734863)'
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);
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});
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it('recursion detokenize with limits on max recursion', () => {
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expect(
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detokenizer.detokenizeBase64(
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generateFrame(
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'$PNNrDQkkN1lZZFJRPT0lJGIxNFlsd2trTjFsWlpGSlJQVDBGUTJGdFpXeFlwSENkUHc9PQ=='
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),
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1
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)
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).toEqual(
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'Regular Token: Cat and Nested Token: (token: $7YYdRQ==, string: Camel, int: 44, float: 1.2300000190734863)'
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);
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});
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});
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