Re-arrange tests to allow testing generated messages code in dart2js

pkg/intl/test/message_extraction/verify_messages.dart

-// Copyright (c) 2013, 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.
+library verify_messages;
 
-library message_extraction_test;
+import "print_to_list.dart";
+import "package:unittest/unittest.dart";
 
-import 'package:unittest/unittest.dart';
-import 'dart:io';
-import 'dart:async';
-import 'dart:convert';
-import 'package:path/path.dart' as path;
-import '../data_directory.dart';
-
-final dart = Platform.executable;
-
-/** The VM arguments we were given, most important package-root. */
-final vmArgs = Platform.executableArguments;
-
-/**
- * Translate a file path into this test directory, regardless of the
- * working directory.
- */
-String dir([String s]) {
-  if (s != null && s.startsWith("--")) { // Don't touch command-line options.
-    return s;
-  } else {
-   return path.join(intlDirectory, 'test', 'message_extraction', s);
-  }
-}
-
-main() {
-  test("Test round trip message extraction, translation, code generation, "
-      "and printing", () {
-    deleteGeneratedFiles();
-    return extractMessages(null).then((result) {
-      return generateTranslationFiles(result);
-    }).then((result) {
-      return generateCodeFromTranslation(result);
-    }).then((result) {
-      return runGeneratedCode(result);
-    }).then(verifyResult)
-    .whenComplete(deleteGeneratedFiles);
-  });
-}
-
-void deleteGeneratedFiles() {
-  var files = [dir('intl_messages.json'), dir('translation_fr.json'),
-      dir('foo_messages_fr.dart'), dir('foo_messages_de_DE.dart'),
-      dir('translation_de_DE.json'), dir('foo_messages_all.dart')];
-  files.map((name) => new File(name)).forEach((x) {
-    if (x.existsSync()) x.deleteSync();});
-}
-
-/**
- * Run the process with the given list of filenames, which we assume
- * are in dir() and need to be qualified in case that's not our working
- * directory.
- */
-Future<ProcessResult> run(ProcessResult previousResult, List<String> filenames)
-{
-  // If there's a failure in one of the sub-programs, print its output.
-  if (previousResult != null) {
-    if (previousResult.exitCode != 0) {
-      print("Error running sub-program:");
-    }
-    print(previousResult.stdout);
-    print(previousResult.stderr);
-    print("exitCode=${previousResult.exitCode}");
-  }
-  var filesInTheRightDirectory = filenames.map((x) => dir(x)).toList();
-  // Inject the script argument --output-dir in between the script and its
-  // arguments.
-  var args = []
-      ..addAll(vmArgs)
-      ..add(filesInTheRightDirectory.first)
-      ..addAll(["--output-dir=${dir()}"])
-      ..addAll(filesInTheRightDirectory.skip(1));
-  var result = Process.run(dart, args, stdoutEncoding: UTF8,
-      stderrEncoding: UTF8);
-  return result;
-}
-
-Future<ProcessResult> extractMessages(ProcessResult previousResult) => run(
-    previousResult,
-    ['extract_to_json.dart', '--suppress-warnings', 'sample_with_messages.dart',
-        'part_of_sample_with_messages.dart']);
-
-Future<ProcessResult> generateTranslationFiles(ProcessResult previousResult) =>
-    run(
-        previousResult,
-        ['make_hardcoded_translation.dart', 'intl_messages.json']);
-
-Future<ProcessResult> generateCodeFromTranslation(ProcessResult previousResult)
-    => run(
-        previousResult,
-        ['generate_from_json.dart', '--generated-file-prefix=foo_',
-         'sample_with_messages.dart',
-             'part_of_sample_with_messages.dart', 'translation_fr.json',
-             'translation_de_DE.json' ]);
-
-Future<ProcessResult> runGeneratedCode(ProcessResult previousResult) =>
-    run(previousResult, ['sample_with_messages.dart']);
-
-verifyResult(results) {
+verifyResult(ignored) {
   var lineIterator;
   verify(String s) {
     lineIterator.moveNext();
     var value = lineIterator.current;
     expect(value, s);
   }
 
-  var output = results.stdout;
-  var lines = output.split("\n");
-  // If it looks like these are CRLF delimited, then use that.
-  if (lines.first.endsWith("\r")) {
-    lines = output.split("\r\n");
-  }
-  lineIterator = lines.iterator..moveNext();
+  var expanded = lines.expand((line) => line.split("\n")).toList();
+  lineIterator = expanded.iterator..moveNext();
   verify("Printing messages for en_US");
   verify("This is a message");
   verify("Another message with parameter hello");
   verify("Characters that need escaping, e.g slashes \\ dollars \${ "
       "(curly braces are ok) and xml reserved characters <& and "
       "quotes \" parameters 1, 2, and 3");
   verify("This string extends across multiple lines.");
   verify("1, b, [c, d]");
   verify('"So-called"');
   verify("Cette chaîne est toujours traduit");
@@ skipping 19 matching lines @@
   verify('none');
   verify('one');
   verify('m');
   verify('f');
   verify('7 male');
   verify('7 Canadian dollars');
   verify('5 some currency or other.');
   verify('1 Canadian dollar');
   verify('2 Canadian dollars');
 
-  var fr_lines = lines.skip(1).skipWhile(
+  var fr_lines = expanded.skip(1).skipWhile(
       (line) => !line.contains('----')).toList();
   lineIterator = fr_lines.iterator..moveNext();
   verify("Printing messages for fr");
   verify("Il s'agit d'un message");
   verify("Un autre message avec un seul paramètre hello");
   verify(
       "Caractères qui doivent être échapper, par exemple barres \\ "
       "dollars \${ (les accolades sont ok), et xml/html réservés <& et "
       "des citations \" "
       "avec quelques paramètres ainsi 1, 2, et 3");
@@ skipping 72 matching lines @@
   verify('Alice, Alice gingen zum magasin');
   verify('Null');
   verify('ein');
   verify('Mann');
   verify('Frau');
   verify('7 Mann');
   verify('7 Kanadischen dollar');
   verify('5 einige Währung oder anderen.');
   verify('1 Kanadischer dollar');
   verify('2 Kanadischen dollar');
-}
+}