pylucene 3.5.0-3

[pylucene.git] / lucene-java-3.5.0 / lucene / contrib / highlighter / src / test / org / apache / lucene / search / vectorhighlight / BreakIteratorBoundaryScannerTest.java

diff --git a/lucene-java-3.5.0/lucene/contrib/highlighter/src/test/org/apache/lucene/search/vectorhighlight/BreakIteratorBoundaryScannerTest.java b/lucene-java-3.5.0/lucene/contrib/highlighter/src/test/org/apache/lucene/search/vectorhighlight/BreakIteratorBoundaryScannerTest.java
new file mode 100644 (file)
index 0000000..28447a1
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+++ b/lucene-java-3.5.0/lucene/contrib/highlighter/src/test/org/apache/lucene/search/vectorhighlight/BreakIteratorBoundaryScannerTest.java
@@ -0,0 +1,91 @@
+package org.apache.lucene.search.vectorhighlight;
+
+/**
+ * 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.
+ */
+
+import java.text.BreakIterator;
+import java.util.Locale;
+
+import org.apache.lucene.util.LuceneTestCase;
+
+public class BreakIteratorBoundaryScannerTest extends LuceneTestCase {
+  static final String TEXT =
+    "Apache Lucene(TM) is a high-performance, full-featured text search engine library written entirely in Java." +
+    "\nIt is a technology suitable for nearly any application that requires\n" +
+    "full-text search, especially cross-platform. \nApache Lucene is an open source project available for free download.";
+
+  public void testOutOfRange() throws Exception {
+    StringBuilder text = new StringBuilder(TEXT);
+    BreakIterator bi = BreakIterator.getWordInstance(Locale.ENGLISH);
+    BoundaryScanner scanner = new BreakIteratorBoundaryScanner(bi);
+    
+    int start = TEXT.length() + 1;
+    assertEquals(start, scanner.findStartOffset(text, start));
+    assertEquals(start, scanner.findEndOffset(text, start));
+    start = 0;
+    assertEquals(start, scanner.findStartOffset(text, start));
+    start = -1;
+    assertEquals(start, scanner.findEndOffset(text, start));
+  }
+
+  public void testWordBoundary() throws Exception {
+    StringBuilder text = new StringBuilder(TEXT);
+    BreakIterator bi = BreakIterator.getWordInstance(Locale.ENGLISH);
+    BoundaryScanner scanner = new BreakIteratorBoundaryScanner(bi);
+    
+    int start = TEXT.indexOf("formance");
+    int expected = TEXT.indexOf("high-performance");
+    testFindStartOffset(text, start, expected, scanner);
+
+    expected = TEXT.indexOf(", full");
+    testFindEndOffset(text, start, expected, scanner);
+  }
+
+  public void testSentenceBoundary() throws Exception {
+    StringBuilder text = new StringBuilder(TEXT);
+    BreakIterator bi = BreakIterator.getSentenceInstance();
+    BoundaryScanner scanner = new BreakIteratorBoundaryScanner(bi);
+    
+    int start = TEXT.indexOf("any application");
+    int expected = TEXT.indexOf("It is a");
+    testFindStartOffset(text, start, expected, scanner);
+
+    expected = TEXT.indexOf("Apache Lucene is an open source");
+    testFindEndOffset(text, start, expected, scanner);
+  }
+
+  public void testLineBoundary() throws Exception {
+    StringBuilder text = new StringBuilder(TEXT);
+    BreakIterator bi = BreakIterator.getLineInstance();
+    BoundaryScanner scanner = new BreakIteratorBoundaryScanner(bi);
+    
+    int start = TEXT.indexOf("any application");
+    int expected = TEXT.indexOf("nearly");
+    testFindStartOffset(text, start, expected, scanner);
+
+    expected = TEXT.indexOf("application that requires");
+    testFindEndOffset(text, start, expected, scanner);
+  }
+  
+  private void testFindStartOffset(StringBuilder text, int start, int expected, BoundaryScanner scanner) throws Exception {
+    assertEquals(expected, scanner.findStartOffset(text, start));
+  }
+  
+  private void testFindEndOffset(StringBuilder text, int start, int expected, BoundaryScanner scanner) throws Exception {
+    assertEquals(expected, scanner.findEndOffset(text, start));
+  }
+}