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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 test.services.correction.levenshtein; |  | 
| 6 |  | 
| 7 import 'package:analysis_services/src/correction/levenshtein.dart'; |  | 
| 8 import 'package:analysis_testing/reflective_tests.dart'; |  | 
| 9 import 'package:unittest/unittest.dart'; |  | 
| 10 |  | 
| 11 |  | 
| 12 main() { |  | 
| 13   groupSep = ' | '; |  | 
| 14   runReflectiveTests(LevenshteinTest); |  | 
| 15 } |  | 
| 16 |  | 
| 17 @ReflectiveTestCase() |  | 
| 18 class LevenshteinTest { |  | 
| 19   void test_different_caseInsensitive() { |  | 
| 20     expect(levenshtein('Saturday', 'sunday', 5, caseSensitive: false), 3); |  | 
| 21     expect(levenshtein('SaturDay', 'sunday', 5, caseSensitive: false), 3); |  | 
| 22   } |  | 
| 23 |  | 
| 24   void test_different_onThreshold() { |  | 
| 25     expect(levenshtein('', 'abcde', 5), 5); |  | 
| 26     expect(levenshtein('abcde', '', 5), 5); |  | 
| 27   } |  | 
| 28 |  | 
| 29   void test_different_overThreshold() { |  | 
| 30     expect(levenshtein('', 'abcde', 2), LEVENSHTEIN_MAX); |  | 
| 31     expect(levenshtein('abcde', '', 2), LEVENSHTEIN_MAX); |  | 
| 32   } |  | 
| 33 |  | 
| 34   void test_different_overThreshold_length() { |  | 
| 35     expect(levenshtein('a', 'abcdefgh', 5), LEVENSHTEIN_MAX); |  | 
| 36     expect(levenshtein('abcdefgh', 'a', 5), LEVENSHTEIN_MAX); |  | 
| 37   } |  | 
| 38 |  | 
| 39   void test_different_underThreshold() { |  | 
| 40     expect(levenshtein('String', 'Stirng', 5), 2); |  | 
| 41     expect(levenshtein('kitten', 'sitting', 5), 3); |  | 
| 42     expect(levenshtein('Saturday', 'Sunday', 5), 3); |  | 
| 43   } |  | 
| 44 |  | 
| 45   void test_negativeThreshold() { |  | 
| 46     expect(() { |  | 
| 47       levenshtein('', '', -5); |  | 
| 48     }, throws); |  | 
| 49   } |  | 
| 50 |  | 
| 51   void test_null() { |  | 
| 52     expect(() { |  | 
| 53       levenshtein('', null, 5); |  | 
| 54     }, throws); |  | 
| 55     expect(() { |  | 
| 56       levenshtein(null, '', 5); |  | 
| 57     }, throws); |  | 
| 58   } |  | 
| 59 |  | 
| 60   void test_same() { |  | 
| 61     expect(levenshtein('', '', 5), 0); |  | 
| 62     expect(levenshtein('test', 'test', 5), 0); |  | 
| 63   } |  | 
| 64 |  | 
| 65   void test_same_caseInsensitive() { |  | 
| 66     expect(levenshtein('test', 'Test', 5, caseSensitive: false), 0); |  | 
| 67   } |  | 
| 68 } |  | 
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