shift-interpreter/dist/test/evaluation/loops.test.js

Shift-interpreter is an experimental JavaScript meta-interpreter useful for reverse engineering and analysis. One notable difference from other projects is that shift-interpreter retains state over an entire script but can be fed expressions and statement

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
const util_1 = require("../util");
describe('Loops', () => {
    describe('For Loops', () => {
        it('should evaluate basic for loops', () => {
            util_1.assertResult(util_1.compare('let b = 0; for (let a = 1; a <= 2; a++) {b = b + a} b;'));
        });
        it('should support break statements', () => {
            util_1.assertResult(util_1.compare('let b = 0; for (let a = 1; a <= 2; a++) {b = b + a; break} b;'));
        });
        it('should support nested break statements', () => {
            util_1.assertResult(util_1.compare('let b = 0; for (let a = 1; a <= 2; a++) {for (let i = 1; i < 10; i++) {break; b++;}; b = b + a;} b;'));
        });
        it('should support continue statements', () => {
            util_1.assertResult(util_1.compare('let b = 0; for (let a = 1; a <= 2; a++) {b = b + a; continue; b += 2} b;'));
        });
        it('should support nested continue statements', () => {
            util_1.assertResult(util_1.compare('let b = 0; for (let a = 1; a <= 2; a++) {for (let i = 1; i < 10; i++) {b++; continue; b++;}; b = b + a;} b;'));
        });
    });
    it('should support for...in statements', () => {
        util_1.assertResult(util_1.compare(`let a = {a:1,b:2},c = 0; for (let b in a) { c+=a[b]; } c;`));
        util_1.assertResult(util_1.compare(`let a = {a:1,b:2},c = 0,b; for (b in a) { c+=a[b]; } c;`));
    });
    it('should support for...of statements', () => {
        util_1.assertResult(util_1.compare(`let a = [1,2],c = 0; for (let b of a) { c+=b; } c;`));
    });
    it('should support while statements', () => {
        util_1.assertResult(util_1.compare('let a = 0; while(a < 10) {a++} a;'));
    });
    it('should support do-while statements', () => {
        util_1.assertResult(util_1.compare('let a = 0; do{a++}while(a < 10) a;'));
    });
});
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