| #if FEATURE_BREAKITERATOR |
| using ICU4N.Support.Text; |
| using ICU4N.Text; |
| using Lucene.Net.Support; |
| using Lucene.Net.Util; |
| using NUnit.Framework; |
| using System; |
| using System.Globalization; |
| |
| namespace Lucene.Net.Search.PostingsHighlight |
| { |
| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| public class TestWholeBreakIterator : LuceneTestCase |
| { |
| /** For single sentences, we know WholeBreakIterator should break the same as a sentence iterator */ |
| [Test] |
| public void TestSingleSentences() |
| { |
| BreakIterator expected = BreakIterator.GetSentenceInstance(CultureInfo.InvariantCulture); |
| BreakIterator actual = new WholeBreakIterator(); |
| assertSameBreaks("a", expected, actual); |
| assertSameBreaks("ab", expected, actual); |
| assertSameBreaks("abc", expected, actual); |
| assertSameBreaks("", expected, actual); |
| } |
| |
| [Test] |
| public void TestSliceEnd() |
| { |
| BreakIterator expected = BreakIterator.GetSentenceInstance(CultureInfo.InvariantCulture); |
| BreakIterator actual = new WholeBreakIterator(); |
| assertSameBreaks("a000", 0, 1, expected, actual); |
| assertSameBreaks("ab000", 0, 1, expected, actual); |
| assertSameBreaks("abc000", 0, 1, expected, actual); |
| assertSameBreaks("000", 0, 0, expected, actual); |
| } |
| |
| [Test] |
| public void TestSliceStart() |
| { |
| BreakIterator expected = BreakIterator.GetSentenceInstance(CultureInfo.InvariantCulture); |
| BreakIterator actual = new WholeBreakIterator(); |
| assertSameBreaks("000a", 3, 1, expected, actual); |
| assertSameBreaks("000ab", 3, 2, expected, actual); |
| assertSameBreaks("000abc", 3, 3, expected, actual); |
| assertSameBreaks("000", 3, 0, expected, actual); |
| } |
| |
| [Test] |
| public void TestSliceMiddle() |
| { |
| BreakIterator expected = BreakIterator.GetSentenceInstance(CultureInfo.InvariantCulture); |
| BreakIterator actual = new WholeBreakIterator(); |
| assertSameBreaks("000a000", 3, 1, expected, actual); |
| assertSameBreaks("000ab000", 3, 2, expected, actual); |
| assertSameBreaks("000abc000", 3, 3, expected, actual); |
| assertSameBreaks("000000", 3, 0, expected, actual); |
| } |
| |
| /** the current position must be ignored, initial position is always first() */ |
| [Test] |
| public void TestFirstPosition() |
| { |
| BreakIterator expected = BreakIterator.GetSentenceInstance(CultureInfo.InvariantCulture); |
| BreakIterator actual = new WholeBreakIterator(); |
| assertSameBreaks("000ab000", 3, 2, 4, expected, actual); |
| } |
| |
| public void assertSameBreaks(String text, BreakIterator expected, BreakIterator actual) |
| { |
| assertSameBreaks(new StringCharacterIterator(text), |
| new StringCharacterIterator(text), |
| expected, |
| actual); |
| } |
| |
| public void assertSameBreaks(String text, int offset, int length, BreakIterator expected, BreakIterator actual) |
| { |
| assertSameBreaks(text, offset, length, offset, expected, actual); |
| } |
| |
| public void assertSameBreaks(String text, int offset, int length, int current, BreakIterator expected, BreakIterator actual) |
| { |
| assertSameBreaks(new StringCharacterIterator(text, offset, offset + length, current), |
| new StringCharacterIterator(text, offset, offset + length, current), |
| expected, |
| actual); |
| } |
| |
| /** Asserts that two breakiterators break the text the same way */ |
| public void assertSameBreaks(CharacterIterator one, CharacterIterator two, BreakIterator expected, BreakIterator actual) |
| { |
| expected.SetText(one); |
| actual.SetText(two); |
| |
| assertEquals(expected.Current, actual.Current); |
| |
| // next() |
| int v = expected.Current; |
| while (v != BreakIterator.Done) |
| { |
| assertEquals(v = expected.Next(), actual.Next()); |
| assertEquals(expected.Current, actual.Current); |
| } |
| |
| // first() |
| assertEquals(expected.First(), actual.First()); |
| assertEquals(expected.Current, actual.Current); |
| // last() |
| assertEquals(expected.Last(), actual.Last()); |
| assertEquals(expected.Current, actual.Current); |
| |
| // previous() |
| v = expected.Current; |
| while (v != BreakIterator.Done) |
| { |
| assertEquals(v = expected.Previous(), actual.Previous()); |
| assertEquals(expected.Current, actual.Current); |
| } |
| |
| // following() |
| for (int i = one.BeginIndex; i <= one.EndIndex; i++) |
| { |
| expected.First(); |
| actual.First(); |
| assertEquals(expected.Following(i), actual.Following(i)); |
| assertEquals(expected.Current, actual.Current); |
| } |
| |
| // preceding() |
| for (int i = one.BeginIndex; i <= one.EndIndex; i++) |
| { |
| expected.Last(); |
| actual.Last(); |
| assertEquals(expected.Preceding(i), actual.Preceding(i)); |
| assertEquals(expected.Current, actual.Current); |
| } |
| } |
| } |
| } |
| #endif |