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| 1 // Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file | |
| 2 // for details. All rights reserved. Use of this source code is governed by a | |
| 3 // BSD-style license that can be found in the LICENSE file. | |
| 4 | |
| 5 library string_scanner.span_scanner_test; | |
| 6 | |
| 7 import 'package:string_scanner/string_scanner.dart'; | |
| 8 import 'package:unittest/unittest.dart'; | |
| 9 | |
| 10 void main() { | |
| 11 var scanner; | |
| 12 setUp(() { | |
| 13 scanner = new SpanScanner('foo\nbar\nbaz', sourceUrl: 'source'); | |
| 14 }); | |
| 15 | |
| 16 test("tracks the span for the last match", () { | |
| 17 scanner.scan('fo'); | |
| 18 scanner.scan('o\nba'); | |
| 19 | |
| 20 var span = scanner.lastSpan; | |
| 21 expect(span.start.offset, equals(2)); | |
| 22 expect(span.start.line, equals(0)); | |
| 23 expect(span.start.column, equals(2)); | |
| 24 expect(span.start.sourceUrl, equals(Uri.parse('source'))); | |
| 25 | |
| 26 expect(span.end.offset, equals(6)); | |
| 27 expect(span.end.line, equals(1)); | |
| 28 expect(span.end.column, equals(2)); | |
| 29 expect(span.start.sourceUrl, equals(Uri.parse('source'))); | |
| 30 | |
| 31 expect(span.text, equals('o\nba')); | |
| 32 }); | |
| 33 | |
| 34 test(".spanFrom() returns a span from a previous state", () { | |
| 35 scanner.scan('fo'); | |
| 36 var state = scanner.state; | |
| 37 scanner.scan('o\nba'); | |
| 38 scanner.scan('r\nba'); | |
| 39 | |
| 40 var span = scanner.spanFrom(state); | |
| 41 expect(span.text, equals('o\nbar\nba')); | |
| 42 }); | |
| 43 | |
| 44 test(".emptySpan returns an empty span at the current location", () { | |
| 45 scanner.scan('foo\nba'); | |
| 46 | |
| 47 var span = scanner.emptySpan; | |
| 48 expect(span.start.offset, equals(6)); | |
| 49 expect(span.start.line, equals(1)); | |
| 50 expect(span.start.column, equals(2)); | |
| 51 expect(span.start.sourceUrl, equals(Uri.parse('source'))); | |
| 52 | |
| 53 expect(span.end.offset, equals(6)); | |
| 54 expect(span.end.line, equals(1)); | |
| 55 expect(span.end.column, equals(2)); | |
| 56 expect(span.start.sourceUrl, equals(Uri.parse('source'))); | |
| 57 | |
| 58 expect(span.text, equals('')); | |
| 59 }); | |
| 60 } | |
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