// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

@TestOn("vm")
@Tags(const ["chrome"])
import 'dart:io';

import 'package:path/path.dart' as p;
import 'package:test_descriptor/test_descriptor.dart' as d;

import 'package:test/src/backend/state.dart';
import 'package:test/src/backend/test.dart';
import 'package:test/src/backend/test_platform.dart';
import 'package:test/src/runner/configuration/platform_selection.dart';
import 'package:test/src/runner/configuration/suite.dart';
import 'package:test/src/runner/loader.dart';
import 'package:test/test.dart';

import '../../utils.dart';

Loader _loader;

/// A configuration that loads suites on Chrome.
final _chrome = new SuiteConfiguration(
    platforms: [new PlatformSelection(TestPlatform.chrome.identifier)]);

void main() {
  setUp(() async {
    _loader = new Loader(root: d.sandbox);

    await d.file('a_test.dart', """
      import 'dart:async';

      import 'package:test/test.dart';

      void main() {
        test("success", () {});
        test("failure", () => throw new TestFailure('oh no'));
        test("error", () => throw 'oh no');
      }
    """).create();
  });

  tearDown(() => _loader.close());

  group(".loadFile()", () {
    var suite;
    setUp(() async {
      var suites = await _loader
          .loadFile(p.join(d.sandbox, 'a_test.dart'), _chrome)
          .toList();

      expect(suites, hasLength(1));
      var loadSuite = suites.first;
      suite = await loadSuite.getSuite();
    });

    test("returns a suite with the file path and platform", () {
      expect(suite.path, equals(p.join(d.sandbox, 'a_test.dart')));
      expect(suite.platform, equals(TestPlatform.chrome));
    });

    test("returns tests with the correct names", () {
      expect(suite.group.entries, hasLength(3));
      expect(suite.group.entries[0].name, equals("success"));
      expect(suite.group.entries[1].name, equals("failure"));
      expect(suite.group.entries[2].name, equals("error"));
    });

    test("can load and run a successful test", () {
      var liveTest = suite.group.entries[0].load(suite);

      expectStates(liveTest, [
        const State(Status.running, Result.success),
        const State(Status.complete, Result.success)
      ]);
      expectErrors(liveTest, []);

      return liveTest.run().whenComplete(() => liveTest.close());
    });

    test("can load and run a failing test", () {
      var liveTest = suite.group.entries[1].load(suite);
      expectSingleFailure(liveTest);
      return liveTest.run().whenComplete(() => liveTest.close());
    });
  });

  test("loads tests that are defined asynchronously", () async {
    new File(p.join(d.sandbox, 'a_test.dart')).writeAsStringSync("""
import 'dart:async';

import 'package:test/test.dart';

Future main() {
  return new Future(() {
    test("success", () {});

    return new Future(() {
      test("failure", () => throw new TestFailure('oh no'));

      return new Future(() {
        test("error", () => throw 'oh no');
      });
    });
  });
}
""");

    var suites = await _loader
        .loadFile(p.join(d.sandbox, 'a_test.dart'), _chrome)
        .toList();
    expect(suites, hasLength(1));
    var loadSuite = suites.first;
    var suite = await loadSuite.getSuite();
    expect(suite.group.entries, hasLength(3));
    expect(suite.group.entries[0].name, equals("success"));
    expect(suite.group.entries[1].name, equals("failure"));
    expect(suite.group.entries[2].name, equals("error"));
  });

  test("loads a suite both in the browser and the VM", () async {
    var path = p.join(d.sandbox, 'a_test.dart');

    var suites = await _loader
        .loadFile(
            path,
            new SuiteConfiguration(platforms: [
              new PlatformSelection(TestPlatform.vm.identifier),
              new PlatformSelection(TestPlatform.chrome.identifier)
            ]))
        .asyncMap((loadSuite) => loadSuite.getSuite())
        .toList();
    expect(suites[0].platform, equals(TestPlatform.vm));
    expect(suites[0].path, equals(path));
    expect(suites[1].platform, equals(TestPlatform.chrome));
    expect(suites[1].path, equals(path));

    for (var suite in suites) {
      expect(suite.group.entries, hasLength(3));
      expect(suite.group.entries[0].name, equals("success"));
      expect(suite.group.entries[1].name, equals("failure"));
      expect(suite.group.entries[2].name, equals("error"));
    }
  });

  test("a print in a loaded file is piped through the LoadSuite", () async {
    new File(p.join(d.sandbox, 'a_test.dart')).writeAsStringSync("""
void main() {
  print('print within test');
}
""");
    var suites = await _loader
        .loadFile(p.join(d.sandbox, 'a_test.dart'), _chrome)
        .toList();
    expect(suites, hasLength(1));
    var loadSuite = suites.first;

    var liveTest = (loadSuite.group.entries.single as Test).load(loadSuite);
    expect(liveTest.onMessage.first.then((message) => message.text),
        completion(equals("print within test")));
    await liveTest.run();
    expectTestPassed(liveTest);
  }, skip: "Broken by sdk#29693.");
}