nweiz@google.com
22d2778e00
This is just the first step; future CLs will add support for the new API to various packages currently using the old one. BUG=19930 R=sigmund@google.com Review URL: https://codereview.chromium.org//381363002 git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@38360 260f80e4-7a28-3924-810f-c04153c831b5
102 lines
3.1 KiB
Dart
102 lines
3.1 KiB
Dart
// Copyright (c) 2014, 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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import 'package:unittest/unittest.dart';
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import 'package:source_span/source_span.dart';
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main() {
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var location;
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setUp(() {
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location = new SourceLocation(15,
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line: 2, column: 6, sourceUrl: "foo.dart");
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});
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group('errors', () {
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group('for new SourceLocation()', () {
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test('offset may not be negative', () {
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expect(() => new SourceLocation(-1), throwsRangeError);
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});
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test('line may not be negative', () {
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expect(() => new SourceLocation(0, line: -1), throwsRangeError);
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});
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test('column may not be negative', () {
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expect(() => new SourceLocation(0, column: -1), throwsRangeError);
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});
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});
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test('for distance() source URLs must match', () {
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expect(() => location.distance(new SourceLocation(0)),
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throwsArgumentError);
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});
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test('for compareTo() source URLs must match', () {
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expect(() => location.compareTo(new SourceLocation(0)),
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throwsArgumentError);
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});
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});
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test('fields work correctly', () {
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expect(location.sourceUrl, equals(Uri.parse("foo.dart")));
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expect(location.offset, equals(15));
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expect(location.line, equals(2));
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expect(location.column, equals(6));
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});
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group('toolString', () {
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test('returns a computer-readable representation', () {
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expect(location.toolString, equals('foo.dart:3:7'));
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});
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test('gracefully handles a missing source URL', () {
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var location = new SourceLocation(15, line: 2, column: 6);
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expect(location.toolString, equals('unknown source:3:7'));
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});
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});
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test("distance returns the absolute distance between locations", () {
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var other = new SourceLocation(10, sourceUrl: "foo.dart");
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expect(location.distance(other), equals(5));
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expect(other.distance(location), equals(5));
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});
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test("pointSpan returns an empty span at location", () {
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var span = location.pointSpan();
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expect(span.start, equals(location));
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expect(span.end, equals(location));
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expect(span.text, isEmpty);
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});
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group("compareTo()", () {
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test("sorts by offset", () {
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var other = new SourceLocation(20, sourceUrl: "foo.dart");
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expect(location.compareTo(other), lessThan(0));
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expect(other.compareTo(location), greaterThan(0));
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});
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test("considers equal locations equal", () {
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expect(location.compareTo(location), equals(0));
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});
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});
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group("equality", () {
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test("two locations with the same offset and source are equal", () {
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var other = new SourceLocation(15, sourceUrl: "foo.dart");
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expect(location, equals(other));
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});
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test("a different offset isn't equal", () {
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var other = new SourceLocation(10, sourceUrl: "foo.dart");
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expect(location, isNot(equals(other)));
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});
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test("a different source isn't equal", () {
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var other = new SourceLocation(15, sourceUrl: "bar.dart");
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expect(location, isNot(equals(other)));
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});
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});
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}
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