@TestOn('browser')

import 'package:rules_of_living/src/Engine.dart';
import 'package:test/test.dart';

void main() {
  test("Engine can be instantiated without canvas", () {
    expect(Engine(), isNot(throwsNoSuchMethodError));
  });

  test("Engine does not throw errors when calling render directly", () {
    Engine sut = new Engine();
    // anonymous function necessary since throws can not use functions with args
    expect(() => sut.render(), isNot(throwsNoSuchMethodError));
  });

  test("Engine does not throw errors when processing without attached canvas", () {
    Engine sut = new Engine();
    // anonymous function necessary since throws can not use functions with args
    expect(() => sut.process(1000), isNot(throwsNoSuchMethodError));
  });
}