import {Latus} from '@latus/core';
import {expect} from 'chai';

import {
  buildInvoke,
  buildExpression,
} from '../src/builders';
import Context from '../src/context';
import compile from '../src/compilers/compile';

const {name} = require('../package.json');

describe(name, () => {
  let latus;
  let context;
  beforeEach(async () => {
    latus = Latus.mock({
      '@avocado/behavior': require('../src'),
    });
    await Promise.all(latus.invokeFlat('@latus/core/starting'));
    context = new Context({}, latus);
  });
  describe('expression', () => {
    it('evaluates value expressions', async () => {
      const test = {foo: 69};
      context.add('test', test);
      const expression = compile(buildExpression(['test', 'foo']), latus);
      expect(expression(context)).to.equal(test.foo);
    });
    it('evaluates assignment expressions', async () => {
      const test = {foo: 69};
      context.add('test', test);
      const expression = compile(buildExpression(['test', 'foo'], 420), latus);
      expression(context);
      expect(test.foo).to.equal(420);
    });
    it('invokes', async () => {
      const test = {foo: () => 69};
      context.add('test', test);
      const expression = compile(buildInvoke(['test', 'foo']), latus);
      expect(expression(context)).to.equal(69);
    });
  });
});