| // Copyright (c) 2019, 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. |
| |
| import 'package:analysis_server/src/protocol_server.dart'; |
| import 'package:nnbd_migration/src/front_end/offset_mapper.dart'; |
| import 'package:test/test.dart'; |
| import 'package:test_reflective_loader/test_reflective_loader.dart'; |
| |
| import 'analysis_abstract.dart'; |
| |
| void main() { |
| defineReflectiveSuite(() { |
| defineReflectiveTests(OffsetMapperTest); |
| }); |
| } |
| |
| @reflectiveTest |
| class OffsetMapperTest extends AbstractAnalysisTest { |
| void test_identity() { |
| var mapper = OffsetMapper.identity; |
| expect(mapper.map(0), 0); |
| expect(mapper.map(20), 20); |
| expect(mapper.map(0xFFFFFF), 0xFFFFFF); |
| } |
| |
| void test_insertMapper() { |
| var mapper = OffsetMapper.forInsertion(10, 5); |
| expect(mapper.map(0), 0); |
| expect(mapper.map(9), 9); |
| expect(mapper.map(10), 15); |
| expect(mapper.map(11), 16); |
| expect(mapper.map(20), 25); |
| } |
| |
| void test_multipleEdits() { |
| var mapper = OffsetMapper.forEdits([ |
| SourceEdit(13, 0, '?'), |
| SourceEdit(21, 0, '!'), |
| SourceEdit(32, 0, '?'), |
| ]); |
| expect(mapper.map(0), 0); |
| expect(mapper.map(13), 13); |
| expect(mapper.map(14), 15); |
| expect(mapper.map(21), 22); |
| expect(mapper.map(22), 24); |
| expect(mapper.map(32), 34); |
| expect(mapper.map(33), 36); |
| expect(mapper.map(55), 58); |
| } |
| |
| void test_rebase_insertMapper() { |
| var mapper = OffsetMapper.rebase( |
| OffsetMapper.forInsertion(5, 5), OffsetMapper.forInsertion(10, 5)); |
| expect(mapper.map(0), 0); |
| expect(mapper.map(4), 4); |
| expect(mapper.map(5), 10); |
| expect(mapper.map(6), 11); |
| expect(mapper.map(9), 14); |
| expect(mapper.map(10), 20); |
| expect(mapper.map(11), 21); |
| expect(mapper.map(12), 22); |
| } |
| |
| void test_sequence_insertMappers() { |
| var mapper = OffsetMapper.sequence( |
| OffsetMapper.forInsertion(30, 10), OffsetMapper.forInsertion(10, 10)); |
| expect(mapper.map(0), 0); |
| expect(mapper.map(9), 9); |
| expect(mapper.map(10), 20); |
| expect(mapper.map(11), 21); |
| expect(mapper.map(29), 39); |
| expect(mapper.map(30), 50); |
| expect(mapper.map(31), 51); |
| } |
| |
| void test_sequence_insertMappers_firstBeforeSecond() { |
| var mapper = OffsetMapper.sequence( |
| OffsetMapper.forInsertion(10, 10), OffsetMapper.forInsertion(30, 10)); |
| expect(mapper.map(0), 0); |
| expect(mapper.map(9), 9); |
| expect(mapper.map(10), 20); |
| expect(mapper.map(11), 21); |
| expect(mapper.map(19), 29); |
| expect(mapper.map(20), 40); |
| expect(mapper.map(21), 41); |
| } |
| |
| void test_sequence_insertMappers_overlapping() { |
| // by inserting into the middle of a previous insertion, we just effectively |
| // make the first insertion longer. |
| var mapper = OffsetMapper.sequence( |
| OffsetMapper.forInsertion(10, 10), OffsetMapper.forInsertion(15, 5)); |
| expect(mapper.map(0), 0); |
| expect(mapper.map(9), 9); |
| expect(mapper.map(10), 25); |
| expect(mapper.map(11), 26); |
| expect(mapper.map(20), 35); |
| } |
| |
| void test_singleEdit() { |
| var mapper = OffsetMapper.forEdits([ |
| SourceEdit(13, 0, '?'), |
| ]); |
| expect(mapper.map(0), 0); |
| expect(mapper.map(13), 13); |
| expect(mapper.map(14), 15); |
| } |
| } |