dart-sdk/pkg/analyzer_cli/test/error_test.dart
Erik Ernst 9336e199fd Re-land of CL 2990703002, adding fixes to analyzer_test and error_test.
This CL is identical to the reverted CL 2990703002 which implements
syntactic support for generalized void in the analyzer, plus two bug
fixes in pkg/analyzer/test/generated/parser_test.dart and
pkg/analyzer_cli/test/error_test.dart. In the former, a test on parsing
`void,` was changed to expect an error: _isTypeIdentifier on a lone
`void` will no longer return true, which is necessary because `void`
can now be used as a type annotation alone. Another test on `void x`
was added, which produces the behavior previously seen for `void,`.
In error_test, the error which is used throughout was changed from
`void foo;` to `var int foo;` (because the former is no longer an
error).

Review-Url: https://codereview.chromium.org/2992623002 .
2017-07-27 12:39:19 +02:00

56 lines
1.8 KiB
Dart

// 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.
library analyzer_cli.test.error;
import 'package:test/test.dart';
import 'utils.dart';
const badDeclaration = 'var int foo;';
const badDeclarationMessage = 'Error in test.dart: '
'Variables can\'t be declared using both \'var\' and a type name.\n';
void main() {
group('error', () {
test("a valid Dart file doesn't throw any errors", () {
expect(errorsForFile('void main() => print("Hello, world!");'), isNull);
});
test("an empty Dart file doesn't throw any errors", () {
expect(errorsForFile(''), isNull);
});
test("an error on the first line", () {
expect(errorsForFile('$badDeclaration\n'), equals(badDeclarationMessage));
});
test("an error on the last line", () {
expect(errorsForFile('\n$badDeclaration'), equals(badDeclarationMessage));
});
test("an error in the middle", () {
expect(
errorsForFile('\n$badDeclaration\n'), equals(badDeclarationMessage));
});
var veryLongString = new List.filled(107, ' ').join('');
test("an error at the end of a very long line", () {
expect(errorsForFile('$veryLongString $badDeclaration'),
equals(badDeclarationMessage));
});
test("an error at the beginning of a very long line", () {
expect(errorsForFile('$badDeclaration $veryLongString'),
equals(badDeclarationMessage));
});
test("an error in the middle of a very long line", () {
expect(errorsForFile('$veryLongString $badDeclaration$veryLongString'),
equals(badDeclarationMessage));
});
});
}