Paul Berry
4624419736
Fixes #36724. Change-Id: Iff8277c0e08b11ec815426b1940767076f4141ad Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/100278 Reviewed-by: Konstantin Shcheglov <scheglov@google.com> Reviewed-by: Brian Wilkerson <brianwilkerson@google.com> Commit-Queue: Paul Berry <paulberry@google.com>
88 lines
3.3 KiB
Dart
88 lines
3.3 KiB
Dart
// Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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// ignore: deprecated_member_use_from_same_package
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import 'package:analyzer/analyzer.dart';
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import 'package:test/test.dart';
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void main() {
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test("parses a valid compilation unit successfully", () {
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var unit = parseCompilationUnit("void main() => print('Hello, world!');");
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expect(unit.toString(), equals("void main() => print('Hello, world!');"));
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});
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group('Supports spread collections', () {
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var contents = 'var x = [...[]];';
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void checkCompilationUnit(CompilationUnit unit) {
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var declaration = unit.declarations.single as TopLevelVariableDeclaration;
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var listLiteral =
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declaration.variables.variables.single.initializer as ListLiteral;
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var spread = listLiteral.elements.single as SpreadElement;
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expect(spread.expression, TypeMatcher<ListLiteral>());
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}
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test('with errors suppressed', () {
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checkCompilationUnit(
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parseCompilationUnit(contents, suppressErrors: true));
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});
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test('with errors enabled', () {
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checkCompilationUnit(parseCompilationUnit(contents));
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});
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});
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group('Supports control flow collections', () {
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var contents = 'var x = [if (true) 0 else "foo"];';
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void checkCompilationUnit(CompilationUnit unit) {
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var declaration = unit.declarations.single as TopLevelVariableDeclaration;
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var listLiteral =
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declaration.variables.variables.single.initializer as ListLiteral;
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var ifElement = listLiteral.elements.single as IfElement;
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expect(ifElement.condition, TypeMatcher<BooleanLiteral>());
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expect(ifElement.thenElement, TypeMatcher<IntegerLiteral>());
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expect(ifElement.elseElement, TypeMatcher<StringLiteral>());
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}
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test('with errors suppressed', () {
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checkCompilationUnit(
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parseCompilationUnit(contents, suppressErrors: true));
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});
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test('with errors enabled', () {
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checkCompilationUnit(parseCompilationUnit(contents));
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});
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});
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test("throws errors for an invalid compilation unit", () {
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expect(() {
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parseCompilationUnit("void main() => print('Hello, world!')",
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name: 'test.dart');
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}, throwsA(predicate((error) {
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return error is AnalyzerErrorGroup &&
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error.toString().contains("Error in test.dart: Expected to find ';'");
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})));
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});
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test("defaults to '<unknown source>' if no name is provided", () {
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expect(() {
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parseCompilationUnit("void main() => print('Hello, world!')");
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}, throwsA(predicate((error) {
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return error is AnalyzerErrorGroup &&
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error
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.toString()
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.contains("Error in <unknown source>: Expected to find ';'");
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})));
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});
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test("allows you to specify whether or not to parse function bodies", () {
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var unit = parseCompilationUnit("void main() => print('Hello, world!');",
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parseFunctionBodies: false);
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expect(unit.toString(), equals("void main();"));
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});
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test("allows you to specify whether or not to parse function bodies 2", () {
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var unit = parseCompilationUnit("void main() { print('Hello, world!'); }",
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parseFunctionBodies: false);
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expect(unit.toString(), equals("void main();"));
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});
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}
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