public/dart/fuchsia_modular/test/module/intent_test.dart

// Copyright 2018 The Fuchsia Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

import 'dart:convert';
import 'dart:typed_data';

import 'package:fidl_fuchsia_modular/fidl_async.dart' as fidl;
import 'package:fuchsia_modular/src/module/intent.dart'; // ignore: implementation_imports
import 'package:fuchsia_modular/src/entity/entity_codec.dart'; // ignore: implementation_imports
import 'package:test/test.dart';

import '../matchers.dart';

void main() {
  group('intent constructors', () {
    test('intent sets the action', () {
      final intent = Intent(action: 'my-action')
        ..addParameterFromEntityReference('my-value', 'foo');
      expect(intent.action, 'my-action');
    });

    test('intent with handler sets the handler', () {
      final intent = Intent(action: '', handler: 'my-handler');
      expect(intent.handler, 'my-handler');
    });
  });

  group('intent parameters', () {
    Intent intent;

    setUp(() {
      intent = Intent(action: 'foo');
    });

    test('addParameterFromEntityReference adds it to the list', () {
      intent.addParameterFromEntityReference('name', 'ref');
      final result = intent.parameters.firstWhere((p) => p.name == 'name');
      expect(result, isNotNull);
    });

    test('getEntity throws for missing name', () {
      expect(() {
        intent.getEntity(name: 'not-a-name', codec: stub);
      }, throwsModuleStateException);
    });

    test('getEntity returns valid entity for link entity', () {
      //NOTE: this test can be deleted when _link_entity goes away.
      intent.parameters.add(fidl.IntentParameter(
          name: 'name',
          data: fidl.IntentParameterData.withLinkName('foo-link')));
      final entity = intent.getEntity(name: 'name', codec: stub);
      expect(entity, isNotNull);
    });
  });
}

const StubEntityCodec stub = StubEntityCodec();

class StubEntityCodec extends EntityCodec {
  const StubEntityCodec() : super(type: '', encoding: '');
  @override
  Converter<Uint8List, dynamic> get decoder => null;

  @override
  Converter<dynamic, Uint8List> get encoder => null;
}