javascript-obfuscator/test/unit-tests/node-obfuscators/LiteralObfuscator.spec.ts

import { IObfuscationResult } from "../../../src/interfaces/IObfuscationResult";

import { NO_CUSTOM_NODES_PRESET } from "../../../src/preset-options/NoCustomNodesPreset";

import { JavaScriptObfuscator } from "../../../src/JavaScriptObfuscator";

const assert: Chai.AssertStatic = require('chai').assert;

describe('LiteralObfuscator', () => {
    describe('obfuscateNode (literalNode: ILiteralNode, parentNode: INode): void', () => {
        describe('obfuscation of literal node with string value', () => {
            it('should replace literal node value with unicode value without encoding to base64', () => {
                let obfuscationResult: IObfuscationResult = JavaScriptObfuscator.obfuscate(
                    `var test = 'test';`,
                    Object.assign({}, NO_CUSTOM_NODES_PRESET)
                );

                assert.match(obfuscationResult.getObfuscatedCode(),  /^var *test *= *'\\x74\\x65\\x73\\x74';$/);
            });

            it('should replace literal node value with unicode value with encoding to base64', () => {
                let obfuscationResult: IObfuscationResult = JavaScriptObfuscator.obfuscate(
                    `var test = 'test';`,
                    Object.assign({}, NO_CUSTOM_NODES_PRESET, {
                        encodeUnicodeLiterals: true,
                        unicodeArray: true,
                        unicodeArrayThreshold: 1
                    })
                );

                assert.match(obfuscationResult.getObfuscatedCode(),  /^var *_0x([a-z0-9]){4} *= *\['\\x64\\x47\\x56\\x7a\\x64\\x41\\x3d\\x3d'\];/);
                assert.match(obfuscationResult.getObfuscatedCode(),  /var *test *= *_0x([a-z0-9]){4}\('0x0'\);/);
            });
        });

        it('should obfuscate literal node with boolean value', () => {
            let obfuscationResult: IObfuscationResult = JavaScriptObfuscator.obfuscate(
                `var test = true;`,
                Object.assign({}, NO_CUSTOM_NODES_PRESET, {
                    encodeUnicodeLiterals: true,
                    unicodeArray: true,
                    unicodeArrayThreshold: 1
                })
            );

            assert.match(obfuscationResult.getObfuscatedCode(),  /^var *test *= *!!\[\];$/);
        });

        it('should obfuscate literal node with number value', () => {
            let obfuscationResult: IObfuscationResult = JavaScriptObfuscator.obfuscate(
                `var test = 0;`,
                Object.assign({}, NO_CUSTOM_NODES_PRESET, {
                    encodeUnicodeLiterals: true,
                    unicodeArray: true,
                    unicodeArrayThreshold: 1
                })
            );

            assert.match(obfuscationResult.getObfuscatedCode(),  /^var *test *= *0x0;$/);
        });
    });
});