tests/compiler/dart2js/incremental/hello_test.dart

// Copyright (c) 2014, 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.

// Test a sequence of modifications to hello-world which used to cause problems
// on Try Dart.

import 'dart:io' show
    Platform;

import 'dart:async' show
    Future;

import 'package:dart2js_incremental/dart2js_incremental.dart' show
    IncrementalCompiler;

import 'package:compiler/compiler.dart' show
    Diagnostic;

import 'package:compiler/src/null_compiler_output.dart' show
    NullCompilerOutput;

import 'package:compiler/src/old_to_new_api.dart' show
    LegacyCompilerDiagnostics;

import 'package:async_helper/async_helper.dart' show
    asyncTest;

import 'package:expect/expect.dart' show
    Expect;

import '../memory_source_file_helper.dart' show
    MemorySourceFileProvider;

var tests = {
'/test1.dart':
'''
var greeting = "Hello, World!";

void main() {
  print(greeting);
}
''',
'/test2.dart':
'''
va greeting = "Hello, World!";

void main() {
  print(greeting);
}
''',
'/test3.dart':
'''
 greeting = "Hello, World!";

void main() {
  print(greeting);
}
''',
'/test4.dart':
'''
in greeting = "Hello, World!";

void main() {
  print(greeting);
}
''',
'/test5.dart':
'''
int greeting = "Hello, World!";

void main() {
  print(greeting);
}
''',
};

var testResults = {
  '/test1.dart': true,
  '/test2.dart': true,
  '/test3.dart': false,
  '/test4.dart': false,
  '/test5.dart': true,
};

main() {
  Uri libraryRoot = Uri.base.resolve('sdk/');
  Uri packageRoot = Uri.base.resolveUri(
      new Uri.file('${Platform.packageRoot}/'));
  MemorySourceFileProvider provider =
      new MemorySourceFileProvider(tests);
  asyncTest(() => runTests(libraryRoot, packageRoot, provider));
}

Future runTests(
    Uri libraryRoot,
    Uri packageRoot,
    MemorySourceFileProvider provider) {
  IncrementalCompiler compiler = new IncrementalCompiler(
      diagnosticHandler: new LegacyCompilerDiagnostics(handler),
      inputProvider: provider,
      outputProvider: const NullCompilerOutput(),
      options: ['--analyze-main'],
      libraryRoot: libraryRoot,
      packageRoot: packageRoot);

  return Future.forEach(tests.keys, (String testName) {
    Uri testUri = Uri.parse('memory:$testName');
    return compiler.compile(testUri).then((bool success) {
      Expect.equals(
          testResults[testName], success,
          'Compilation unexpectedly ${success ? "succeed" : "failed"}.');
    });
  });
}

void handler(Uri uri,
             int begin,
             int end,
             String message,
             Diagnostic kind) {
  if (kind != Diagnostic.VERBOSE_INFO) {
    print('$uri:$begin:$end:$message:$kind');
  }
}