pkg/front_end/test/dartdoctest_suite.dart

// Copyright (c) 2021, 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.

import 'package:testing/testing.dart'
    show Chain, ChainContext, Result, Step, TestDescription;

import '../tool/dart_doctest_impl.dart';
import 'utils/suite_utils.dart';

void main([List<String> arguments = const []]) => internalMain(
  createContext,
  arguments: arguments,
  displayName: "dartdoctest suite",
  configurationPath: "../testing.json",
);

Future<Context> createContext(Chain suite, Map<String, String> environment) {
  return new Future.value(new Context(suite.name));
}

class Context extends ChainContext {
  final String suiteName;

  Context(this.suiteName);

  @override
  final List<Step> steps = const <Step>[const DartDocTestStep()];

  @override
  Future<List<DartDocTestTestDescription>> list(Chain suite) async {
    List<DartDocTestTestDescription> result = [];
    for (TestDescription entry in await super.list(suite)) {
      List<Test> tests = await dartDocTest.extractTestsFromUri(entry.uri);
      if (tests.isEmpty) continue;
      result.add(
        new DartDocTestTestDescription(entry.shortName, entry.uri, tests),
      );
    }
    return result;
  }

  DartDocTest dartDocTest = new DartDocTest();
}

class DartDocTestTestDescription extends TestDescription {
  @override
  final String shortName;
  @override
  final Uri uri;
  final List<Test> tests;

  DartDocTestTestDescription(this.shortName, this.uri, this.tests);
}

class DartDocTestStep
    extends
        Step<DartDocTestTestDescription, DartDocTestTestDescription, Context> {
  const DartDocTestStep();

  @override
  String get name => "DartDocTest";

  @override
  Future<Result<DartDocTestTestDescription>> run(
    DartDocTestTestDescription description,
    Context context,
  ) async {
    List<TestResult> result = await context.dartDocTest.compileAndRun(
      description.uri,
      description.tests,
    );
    bool boolResult = result
        .map((e) => e.outcome == TestOutcome.Pass)
        .fold(true, (previousValue, element) => previousValue && element);
    if (boolResult) {
      return new Result<DartDocTestTestDescription>.pass(description);
    } else {
      return new Result<DartDocTestTestDescription>.fail(description);
    }
  }
}