shift-interpreter/test/evaluation/if-then-else.test.ts

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

import { assertResult, compare } from '../util';

describe('If Then Else', () => {
  it('should evaluate if statements', () => {
    assertResult(compare('let a = 2; if (a > 1) { a = 5 } a;'));
  });
  it('should evaluate if else statements', () => {
    assertResult(compare('let a = 2; if (a > 100) { a = 5 } else a = 2; a;'));
  });
  it('should evaluate if else if statements', () => {
    assertResult(compare('let a = 2; if (a > 100) a = 5; else if (true) a = "foo"; a;'));
  });
});