lambda-calcul/javascript/test/interpreter.test.js


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const { σ } = require('../src/internals');
const { evaluate } = require('../src/interpreter');

describe('An interpreter', () => {
  it('evaluates symbols', () => {
    expect(evaluate(σ('x'))).toEqual(σ('x'));
    expect(evaluate(σ('y'))).toEqual(σ('y'));
  });
});