pylucene 3.5.0-3

[pylucene.git] / lucene-java-3.5.0 / lucene / contrib / spellchecker / src / test / org / apache / lucene / search / suggest / PersistenceTest.java

diff --git a/lucene-java-3.5.0/lucene/contrib/spellchecker/src/test/org/apache/lucene/search/suggest/PersistenceTest.java b/lucene-java-3.5.0/lucene/contrib/spellchecker/src/test/org/apache/lucene/search/suggest/PersistenceTest.java
new file mode 100644 (file)
index 0000000..3f2ea09
--- /dev/null
+++ b/lucene-java-3.5.0/lucene/contrib/spellchecker/src/test/org/apache/lucene/search/suggest/PersistenceTest.java
@@ -0,0 +1,89 @@
+/**
+ * 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.
+ */
+package org.apache.lucene.search.suggest;
+
+import java.io.File;
+
+import org.apache.lucene.search.suggest.Lookup;
+import org.apache.lucene.search.suggest.fst.FSTLookup;
+import org.apache.lucene.search.suggest.jaspell.JaspellLookup;
+import org.apache.lucene.search.suggest.tst.TSTLookup;
+import org.apache.lucene.util.LuceneTestCase;
+
+public class PersistenceTest extends LuceneTestCase {
+  public final String[] keys = new String[] {
+      "one", 
+      "two", 
+      "three", 
+      "four",
+      "oneness", 
+      "onerous", 
+      "onesimus", 
+      "twofold", 
+      "twonk", 
+      "thrive",
+      "through", 
+      "threat", 
+      "foundation", 
+      "fourier", 
+      "fourty"};
+
+  public void testTSTPersistence() throws Exception {
+    runTest(TSTLookup.class, true);
+  }
+  
+  public void testJaspellPersistence() throws Exception {
+    runTest(JaspellLookup.class, true);
+  }
+
+  public void testFSTPersistence() throws Exception {
+    runTest(FSTLookup.class, false);
+  }
+  
+  private void runTest(Class<? extends Lookup> lookupClass,
+      boolean supportsExactWeights) throws Exception {
+
+    // Add all input keys.
+    Lookup lookup = lookupClass.newInstance();
+    TermFreq[] keys = new TermFreq[this.keys.length];
+    for (int i = 0; i < keys.length; i++)
+      keys[i] = new TermFreq(this.keys[i], (float) i);
+    lookup.build(new TermFreqArrayIterator(keys));
+
+    // Store the suggester.
+    File storeDir = TEMP_DIR;
+    lookup.store(storeDir);
+
+    // Re-read it from disk.
+    lookup = lookupClass.newInstance();
+    lookup.load(storeDir);
+
+    // Assert validity.
+    float previous = Float.NEGATIVE_INFINITY;
+    for (TermFreq k : keys) {
+      Float val = (Float) lookup.get(k.term);
+      assertNotNull(k.term, val);
+
+      if (supportsExactWeights) { 
+        assertEquals(k.term, Float.valueOf(k.v), val);
+      } else {
+        assertTrue(val + ">=" + previous, val >= previous);
+        previous = val.floatValue();
+      }
+    }
+  }
+}