sdk/lib/_internal/pub/test/transformer/can_log_messages_test.dart

// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS d.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.

library pub_tests;

import 'package:scheduled_test/scheduled_test.dart';
import 'package:scheduled_test/scheduled_stream.dart';

import '../../lib/src/exit_codes.dart' as exit_codes;
import '../descriptor.dart' as d;
import '../test_pub.dart';

const TRANSFORMER = """
import 'dart:async';

import 'package:barback/barback.dart';
import 'package:source_maps/source_maps.dart';

class RewriteTransformer extends Transformer {
  RewriteTransformer.asPlugin();

  String get allowedExtensions => '.txt';

  Future apply(Transform transform) {
    transform.logger.info('info!');
    transform.logger.warning('Warning!',
        asset: transform.primaryInput.id.changeExtension('.foo'));
    var sourceFile = new SourceFile.text(
        'http://fake.com/not_real.dart',
        'not a real\\ndart file');
    transform.logger.error('ERROR!', span: new FileSpan(sourceFile, 11));
    return transform.primaryInput.readAsString().then((contents) {
      var id = transform.primaryInput.id.changeExtension(".out");
      transform.addOutput(new Asset.fromString(id, "\$contents.out"));
    });
  }
}
""";

main() {
  initConfig();
  withBarbackVersions("any", () {
    integration("can log messages", () {
      d.dir(appPath, [
        d.pubspec({
          "name": "myapp",
          "transformers": ["myapp/src/transformer"]
        }),
        d.dir("lib", [d.dir("src", [
          d.file("transformer.dart", TRANSFORMER)
        ])]),
        d.dir("web", [
          d.file("foo.txt", "foo")
        ])
      ]).create();

      createLockFile('myapp', pkg: ['barback']);

      var pub = startPub(args: ["build"]);
      pub.stdout.expect(startsWith("Loading source assets..."));
      pub.stdout.expect(consumeWhile(matches("Loading .* transformers...")));
      pub.stdout.expect(startsWith("Building myapp..."));

      pub.stdout.expect(emitsLines("""
[Rewrite on myapp|web/foo.txt]:
info!"""));

      pub.stderr.expect(emitsLines("""
[Rewrite on myapp|web/foo.txt with input myapp|web/foo.foo]:
Warning!
[Rewrite on myapp|web/foo.txt]:"""));

      // The details of the analyzer's error message change pretty frequently,
      // so instead of validating the entire line, just look for a couple of
      // salient bits of information.
      pub.stderr.expect(allOf([
        contains("2"),                              // The line number.
        contains("1"),                              // The column number.
        contains("http://fake.com/not_real.dart"),  // The library.
        contains("ERROR"),                          // That it's an error.
      ]));

      pub.stderr.expect("Build failed.");

      pub.shouldExit(exit_codes.DATA);
    });
  });
}