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Posted to java-commits@lucene.apache.org by ho...@apache.org on 2006/06/20 03:13:14 UTC

svn commit: r415476 - in /lucene/java/trunk: ./ src/java/org/apache/lucene/search/ src/test/org/apache/lucene/search/

Author: hossman
Date: Mon Jun 19 18:13:13 2006
New Revision: 415476

URL: http://svn.apache.org/viewvc?rev=415476&view=rev
Log:
LUCENE-557: Lots of new Explanation test cases (and utilities for writing future test cases) as well as fixes for blatent bugs in the Explanation methods of BooleanQuery and FilteredQuery

Added:
    lucene/java/trunk/src/test/org/apache/lucene/search/TestComplexExplanations.java
    lucene/java/trunk/src/test/org/apache/lucene/search/TestComplexExplanationsOfNonMatches.java
    lucene/java/trunk/src/test/org/apache/lucene/search/TestExplanations.java
    lucene/java/trunk/src/test/org/apache/lucene/search/TestSimpleExplanations.java
    lucene/java/trunk/src/test/org/apache/lucene/search/TestSimpleExplanationsOfNonMatches.java
Modified:
    lucene/java/trunk/CHANGES.txt
    lucene/java/trunk/src/java/org/apache/lucene/search/BooleanQuery.java
    lucene/java/trunk/src/java/org/apache/lucene/search/FilteredQuery.java
    lucene/java/trunk/src/test/org/apache/lucene/search/CheckHits.java

Modified: lucene/java/trunk/CHANGES.txt
URL: http://svn.apache.org/viewvc/lucene/java/trunk/CHANGES.txt?rev=415476&r1=415475&r2=415476&view=diff
==============================================================================
--- lucene/java/trunk/CHANGES.txt (original)
+++ lucene/java/trunk/CHANGES.txt Mon Jun 19 18:13:13 2006
@@ -40,7 +40,11 @@
 
  6. LUCENE-601: RAMDirectory and RAMFile made Serializable
     (Karl Wettin via Otis Gospodnetic)
-    
+
+ 7. LUCENE-557: Fixes to BooleanQuery and FilteredQuery so that the score
+    Explanations match up with the real scores.
+    (Chris Hostetter)
+        
 Optimizations
 
   1. LUCENE-586: TermDocs.skipTo() is now more efficient for multi-segment

Modified: lucene/java/trunk/src/java/org/apache/lucene/search/BooleanQuery.java
URL: http://svn.apache.org/viewvc/lucene/java/trunk/src/java/org/apache/lucene/search/BooleanQuery.java?rev=415476&r1=415475&r2=415476&view=diff
==============================================================================
--- lucene/java/trunk/src/java/org/apache/lucene/search/BooleanQuery.java (original)
+++ lucene/java/trunk/src/java/org/apache/lucene/search/BooleanQuery.java Mon Jun 19 18:13:13 2006
@@ -18,6 +18,7 @@
 
 import org.apache.lucene.index.IndexReader;
 import org.apache.lucene.util.ToStringUtils;
+import org.apache.lucene.search.BooleanClause.Occur;
 
 import java.io.IOException;
 import java.util.Iterator;
@@ -188,8 +189,11 @@
       for (int i = 0 ; i < weights.size(); i++) {
         BooleanClause c = (BooleanClause)clauses.elementAt(i);
         Weight w = (Weight)weights.elementAt(i);
+        // call sumOfSquaredWeights for all clauses in case of side effects
+        float s = w.sumOfSquaredWeights();         // sum sub weights
         if (!c.isProhibited())
-          sum += w.sumOfSquaredWeights();         // sum sub weights
+          // only add to sum for non-prohibited clauses
+          sum += s;
       }
 
       sum *= getBoost() * getBoost();             // boost each sub-weight
@@ -203,8 +207,8 @@
       for (int i = 0 ; i < weights.size(); i++) {
         BooleanClause c = (BooleanClause)clauses.elementAt(i);
         Weight w = (Weight)weights.elementAt(i);
-        if (!c.isProhibited())
-          w.normalize(norm);
+        // normalize all clauses, (even if prohibited in case of side affects)
+        w.normalize(norm);
       }
     }
 
@@ -257,11 +261,15 @@
 
     public Explanation explain(IndexReader reader, int doc)
       throws IOException {
+      final int minShouldMatch =
+        BooleanQuery.this.getMinimumNumberShouldMatch();
       Explanation sumExpl = new Explanation();
       sumExpl.setDescription("sum of:");
       int coord = 0;
       int maxCoord = 0;
       float sum = 0.0f;
+      boolean fail = false;
+      int shouldMatchCount = 0;
       for (int i = 0 ; i < weights.size(); i++) {
         BooleanClause c = (BooleanClause)clauses.elementAt(i);
         Weight w = (Weight)weights.elementAt(i);
@@ -273,17 +281,35 @@
             sum += e.getValue();
             coord++;
           } else {
-            return new Explanation(0.0f, "match prohibited");
+            Explanation r =
+              new Explanation(0.0f, "match on prohibited clause");
+            r.addDetail(e);
+            sumExpl.addDetail(r);
+            fail = true;
           }
+          if (c.getOccur().equals(Occur.SHOULD))
+            shouldMatchCount++;
         } else if (c.isRequired()) {
-          return new Explanation(0.0f, "match required");
+          Explanation r = new Explanation(0.0f, "no match on required clause");
+          r.addDetail(e);
+          sumExpl.addDetail(r);
+          fail = true;
         }
       }
+      if (fail) {
+        sumExpl.setValue(0.0f);
+        sumExpl.setDescription
+          ("Failure to meet condition(s) of required/prohibited clause(s)");
+        return sumExpl;
+      } else if (shouldMatchCount < minShouldMatch) {
+        sumExpl.setValue(0.0f);
+        sumExpl.setDescription("Failure to match minimum number "+
+                               "of optional clauses: " + minShouldMatch);
+        return sumExpl;
+      }
+      
       sumExpl.setValue(sum);
-
-      if (coord == 1)                               // only one clause matched
-        sumExpl = sumExpl.getDetails()[0];          // eliminate wrapper
-
+      
       float coordFactor = similarity.coord(coord, maxCoord);
       if (coordFactor == 1.0f)                      // coord is no-op
         return sumExpl;                             // eliminate wrapper

Modified: lucene/java/trunk/src/java/org/apache/lucene/search/FilteredQuery.java
URL: http://svn.apache.org/viewvc/lucene/java/trunk/src/java/org/apache/lucene/search/FilteredQuery.java?rev=415476&r1=415475&r2=415476&view=diff
==============================================================================
--- lucene/java/trunk/src/java/org/apache/lucene/search/FilteredQuery.java (original)
+++ lucene/java/trunk/src/java/org/apache/lucene/search/FilteredQuery.java Mon Jun 19 18:13:13 2006
@@ -70,7 +70,17 @@
       public float getValue() { return weight.getValue(); }
       public float sumOfSquaredWeights() throws IOException { return weight.sumOfSquaredWeights(); }
       public void normalize (float v) { weight.normalize(v); }
-      public Explanation explain (IndexReader ir, int i) throws IOException { return weight.explain (ir, i); }
+      public Explanation explain (IndexReader ir, int i) throws IOException {
+        Explanation inner = weight.explain (ir, i);
+        Filter f = FilteredQuery.this.filter;
+        BitSet matches = f.bits(ir);
+        if (matches.get(i))
+          return inner;
+        Explanation result = new Explanation
+          (0.0f, "failure to match filter: " + f.toString());
+        result.addDetail(inner);
+        return result;
+      }
 
       // return this query
       public Query getQuery() { return FilteredQuery.this; }

Modified: lucene/java/trunk/src/test/org/apache/lucene/search/CheckHits.java
URL: http://svn.apache.org/viewvc/lucene/java/trunk/src/test/org/apache/lucene/search/CheckHits.java?rev=415476&r1=415475&r2=415476&view=diff
==============================================================================
--- lucene/java/trunk/src/test/org/apache/lucene/search/CheckHits.java (original)
+++ lucene/java/trunk/src/test/org/apache/lucene/search/CheckHits.java Mon Jun 19 18:13:13 2006
@@ -16,6 +16,9 @@
  * limitations under the License.
  */
 
+import org.apache.lucene.store.Directory;
+import org.apache.lucene.index.IndexReader;
+
 import junit.framework.TestCase;
 
 import java.io.IOException;
@@ -23,7 +26,43 @@
 import java.util.TreeSet;
 
 public class CheckHits {
-  /** Tests that a query has expected document number results.
+  
+  /**
+   * Tests that all documents up to maxDoc which are *not* in the
+   * expected result set, have an explanation which indicates no match
+   * (ie: Explanation value of 0.0f)
+   */
+  public static void checkNoMatchExplanations(Query q, String defaultFieldName,
+                                              Searcher searcher, int[] results)
+    throws IOException {
+
+    String d = q.toString(defaultFieldName);
+    Set ignore = new TreeSet();
+    for (int i = 0; i < results.length; i++) {
+      ignore.add(new Integer(results[i]));
+    }
+    
+    int maxDoc = searcher.maxDoc();
+    for (int doc = 0; doc < maxDoc; doc++) {
+      if (ignore.contains(new Integer(doc))) continue;
+
+      Explanation exp = searcher.explain(q, doc);
+      TestCase.assertNotNull("Explanation of [["+d+"]] for #"+doc+" is null",
+                             exp);
+      TestCase.assertEquals("Explanation of [["+d+"]] for #"+doc+
+                            " doesn't indicate non-match: " + exp.toString(),
+                            0.0f, exp.getValue(), 0.0f);
+    }
+    
+  }
+    
+  /**
+   * Tests that a query matches the an expected set of documents
+   *
+   * @param query the query to test
+   * @param searcher the searcher to test the query against
+   * @param defaultFieldName used for displaing the query in assertion messages
+   * @param results a list of documentIds that must match the query
    */
   public static void checkHits(
         Query query,
@@ -138,6 +177,121 @@
     return sb.toString();
   }
 
+  /**
+   * Asserts that the score explanation for every document matching a
+   * query corrisponds with the true score.
+   *
+   * @see ExplanationAsserter
+   * @param query the query to test
+   * @param searcher the searcher to test the query against
+   * @param defaultFieldName used for displaing the query in assertion messages
+   */
+  public static void checkExplanations(Query query,
+                                       String defaultFieldName,
+                                       Searcher searcher) throws IOException {
+
+    searcher.search(query,
+                    new ExplanationAsserter
+                    (query, defaultFieldName, searcher));
+
+  }
+
+  /**
+   * an IndexSearcher that implicitly checks hte explanation of every match
+   * whenever it executes a search
+   */
+  public static class ExplanationAssertingSearcher extends IndexSearcher {
+    public ExplanationAssertingSearcher(Directory d) throws IOException {
+      super(d);
+    }
+    public ExplanationAssertingSearcher(IndexReader r) throws IOException {
+      super(r);
+    }
+    protected void checkExplanations(Query q) throws IOException {
+      super.search(q, null,
+                   new ExplanationAsserter
+                   (q, null, this));
+    }
+    public Hits search(Query query, Filter filter) throws IOException {
+      checkExplanations(query);
+      return super.search(query,filter);
+    }
+    public Hits search(Query query, Sort sort) throws IOException {
+      checkExplanations(query);
+      return super.search(query,sort);
+    }
+    public Hits search(Query query, Filter filter,
+                       Sort sort) throws IOException {
+      checkExplanations(query);
+      return super.search(query,filter,sort);
+    }
+    public TopFieldDocs search(Query query,
+                               Filter filter,
+                               int n,
+                               Sort sort) throws IOException {
+      
+      checkExplanations(query);
+      return super.search(query,filter,n,sort);
+    }
+    public void search(Query query, HitCollector results) throws IOException {
+      checkExplanations(query);
+      super.search(query,results);
+    }
+    public void search(Query query, Filter filter,
+                       HitCollector results) throws IOException {
+      checkExplanations(query);
+      super.search(query,filter, results);
+    }
+    public TopDocs search(Query query, Filter filter,
+                          int n) throws IOException {
+
+      checkExplanations(query);
+      return super.search(query,filter, n);
+    }
+  }
+    
+  /**
+   * Asserts that the score explanation for every document matching a
+   * query corrisponds with the true score.
+   *
+   * NOTE: this HitCollector should only be used with the Query and Searcher
+   * specified at when it is constructed.
+   */
+  public static class ExplanationAsserter extends HitCollector {
+
+    /**
+     * Some explains methods calculate their vlaues though a slightly
+     * differnet  order of operations from the acctaul scoring method ...
+     * this allows for a small amount of variation
+     */
+    public static float SCORE_TOLERANCE_DELTA = 0.00005f;
+    
+    Query q;
+    Searcher s;
+    String d;
+    public ExplanationAsserter(Query q, String defaultFieldName, Searcher s) {
+      this.q=q;
+      this.s=s;
+      this.d = q.toString(defaultFieldName);
+    }      
+    public void collect(int doc, float score) {
+      Explanation exp = null;
+      
+      try {
+        exp = s.explain(q, doc);
+      } catch (IOException e) {
+        throw new RuntimeException
+          ("exception in hitcollector of [["+d+"]] for #"+doc, e);
+      }
+      
+      TestCase.assertNotNull("Explanation of [["+d+"]] for #"+doc+" is null",
+                             exp);
+      TestCase.assertEquals("Score of [["+d+"]] for #"+doc+
+                            " does not match explanation: " + exp.toString(),
+                            score, exp.getValue(), SCORE_TOLERANCE_DELTA);
+    }
+    
+  }
 
 }
 

Added: lucene/java/trunk/src/test/org/apache/lucene/search/TestComplexExplanations.java
URL: http://svn.apache.org/viewvc/lucene/java/trunk/src/test/org/apache/lucene/search/TestComplexExplanations.java?rev=415476&view=auto
==============================================================================
--- lucene/java/trunk/src/test/org/apache/lucene/search/TestComplexExplanations.java (added)
+++ lucene/java/trunk/src/test/org/apache/lucene/search/TestComplexExplanations.java Mon Jun 19 18:13:13 2006
@@ -0,0 +1,97 @@
+package org.apache.lucene.search;
+
+/**
+ * Copyright 2006 Apache Software Foundation
+ *
+ * Licensed 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 org.apache.lucene.search.BooleanClause.Occur;
+import org.apache.lucene.store.RAMDirectory;
+
+import org.apache.lucene.index.IndexWriter;
+import org.apache.lucene.index.IndexReader;
+import org.apache.lucene.index.Term;
+
+import org.apache.lucene.analysis.WhitespaceAnalyzer;
+
+import org.apache.lucene.document.Document;
+import org.apache.lucene.document.Field;
+
+import org.apache.lucene.queryParser.QueryParser;
+import org.apache.lucene.queryParser.ParseException;
+
+import junit.framework.TestCase;
+
+import java.util.Random;
+import java.util.BitSet;
+
+/**
+ * TestExplanations subclass that builds up super crazy complex queries
+ * on the assumption that if the explanations work out right for them,
+ * they should work for anything.
+ */
+public class TestComplexExplanations extends TestExplanations {
+
+  public void test1() throws Exception {
+    
+    BooleanQuery q = new BooleanQuery();
+    
+    q.add(qp.parse("\"w1 w2\"~1"), Occur.MUST);
+    q.add(snear(st("w2"),
+                sor("w5","zz"),
+                4, true),
+          Occur.SHOULD);
+    q.add(snear(sf("w3",2), st("w2"), st("w3"), 5, true),
+          Occur.SHOULD);
+    
+    Query t = new FilteredQuery(qp.parse("xx"),
+                                new ItemizedFilter(new int[] {1,3}));
+    t.setBoost(1000);
+    q.add(t, Occur.SHOULD);
+    
+    t = new ConstantScoreQuery(new ItemizedFilter(new int[] {0,2}));
+    t.setBoost(30);
+    q.add(t, Occur.SHOULD);
+    
+    DisjunctionMaxQuery dm = new DisjunctionMaxQuery(0.2f);
+    dm.add(snear(st("w2"),
+                 sor("w5","zz"),
+                 4, true));
+    dm.add(qp.parse("QQ"));
+    dm.add(qp.parse("xx yy -zz"));
+    dm.add(qp.parse("-xx -w1"));
+
+    DisjunctionMaxQuery dm2 = new DisjunctionMaxQuery(0.5f);
+    dm2.add(qp.parse("w1"));
+    dm2.add(qp.parse("w2"));
+    dm2.add(qp.parse("w3"));
+    dm.add(dm2);
+
+    q.add(dm, Occur.SHOULD);
+
+    BooleanQuery b = new BooleanQuery();
+    b.setMinimumNumberShouldMatch(2);
+    b.add(snear("w1","w2",1,true), Occur.SHOULD);
+    b.add(snear("w2","w3",1,true), Occur.SHOULD);
+    b.add(snear("w1","w3",3,true), Occur.SHOULD);
+
+    q.add(b, Occur.SHOULD);
+    
+    qtest(q, new int[] { 0,1,2 });
+    
+  }
+
+  // :TODO: we really need more crazy complex cases.
+
+}

Added: lucene/java/trunk/src/test/org/apache/lucene/search/TestComplexExplanationsOfNonMatches.java
URL: http://svn.apache.org/viewvc/lucene/java/trunk/src/test/org/apache/lucene/search/TestComplexExplanationsOfNonMatches.java?rev=415476&view=auto
==============================================================================
--- lucene/java/trunk/src/test/org/apache/lucene/search/TestComplexExplanationsOfNonMatches.java (added)
+++ lucene/java/trunk/src/test/org/apache/lucene/search/TestComplexExplanationsOfNonMatches.java Mon Jun 19 18:13:13 2006
@@ -0,0 +1,54 @@
+package org.apache.lucene.search;
+
+/**
+ * Copyright 2006 Apache Software Foundation
+ *
+ * Licensed 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 org.apache.lucene.store.RAMDirectory;
+
+import org.apache.lucene.index.IndexWriter;
+import org.apache.lucene.index.IndexReader;
+import org.apache.lucene.index.Term;
+
+import org.apache.lucene.analysis.WhitespaceAnalyzer;
+
+import org.apache.lucene.document.Document;
+import org.apache.lucene.document.Field;
+
+import org.apache.lucene.queryParser.QueryParser;
+import org.apache.lucene.queryParser.ParseException;
+
+import junit.framework.TestCase;
+
+import java.util.Random;
+import java.util.BitSet;
+
+/**
+ * subclass of TestSimpleExplanations that verifies non matches.
+ */
+public class TestComplexExplanationsOfNonMatches
+  extends TestComplexExplanations {
+
+  /**
+   * Overrides superclass to ignore matches and focus on non-matches
+   *
+   * @see CheckHits#checkNoMatchExplanations
+   */
+  public void qtest(Query q, int[] expDocNrs) throws Exception {
+    CheckHits.checkNoMatchExplanations(q, FIELD, searcher, expDocNrs);
+  }
+    
+}

Added: lucene/java/trunk/src/test/org/apache/lucene/search/TestExplanations.java
URL: http://svn.apache.org/viewvc/lucene/java/trunk/src/test/org/apache/lucene/search/TestExplanations.java?rev=415476&view=auto
==============================================================================
--- lucene/java/trunk/src/test/org/apache/lucene/search/TestExplanations.java (added)
+++ lucene/java/trunk/src/test/org/apache/lucene/search/TestExplanations.java Mon Jun 19 18:13:13 2006
@@ -0,0 +1,236 @@
+package org.apache.lucene.search;
+
+/**
+ * Copyright 2006 Apache Software Foundation
+ *
+ * Licensed 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 org.apache.lucene.search.spans.*;
+import org.apache.lucene.store.RAMDirectory;
+
+import org.apache.lucene.index.IndexWriter;
+import org.apache.lucene.index.IndexReader;
+import org.apache.lucene.index.Term;
+
+import org.apache.lucene.analysis.WhitespaceAnalyzer;
+
+import org.apache.lucene.document.Document;
+import org.apache.lucene.document.Field;
+
+import org.apache.lucene.queryParser.QueryParser;
+import org.apache.lucene.queryParser.ParseException;
+
+import junit.framework.TestCase;
+
+import java.util.Random;
+import java.util.BitSet;
+
+/**
+ * Tests primative queries (ie: that rewrite to themselves) to
+ * insure they match the expected set of docs, and that the score of each
+ * match is equal to the value of the scores explanation.
+ *
+ * <p>
+ * The assumption is that if all of the "primative" queries work well,
+ * then anythingthat rewrites to a primative will work well also.
+ * </p>
+ *
+ * @see "Subclasses for actual tests"
+ */
+public class TestExplanations extends TestCase {
+  protected IndexSearcher searcher;
+
+  public static final String FIELD = "field";
+  public static final QueryParser qp =
+    new QueryParser(FIELD, new WhitespaceAnalyzer());
+
+  public void tearDown() throws Exception {
+    searcher.close();
+  }
+  
+  public void setUp() throws Exception {
+    RAMDirectory directory = new RAMDirectory();
+    IndexWriter writer= new IndexWriter(directory, new WhitespaceAnalyzer(), true);
+    for (int i = 0; i < docFields.length; i++) {
+      Document doc = new Document();
+      doc.add(new Field(FIELD, docFields[i], Field.Store.NO, Field.Index.TOKENIZED));
+      writer.addDocument(doc);
+    }
+    writer.close();
+    searcher = new CheckHits.ExplanationAssertingSearcher(directory);
+    //searcher = new IndexSearcher(directory);
+  }
+
+  protected String[] docFields = {
+    "w1 w2 w3 w4 w5",
+    "w1 w3 w2 w3 zz",
+    "w1 xx w2 yy w3",
+    "w1 w3 xx w2 yy w3 zz"
+  };
+
+  public Query makeQuery(String queryText) throws ParseException {
+    return qp.parse(queryText);
+  }
+
+  public void qtest(String queryText, int[] expDocNrs) throws Exception {
+    qtest(makeQuery(queryText), expDocNrs);
+  }
+  public void qtest(Query q, int[] expDocNrs) throws Exception {
+    CheckHits.checkHits(q, FIELD, searcher, expDocNrs);
+  }
+
+  /**
+   * Tests a query using qtest after wrapping it with both optB and reqB
+   * @see #qtest
+   * @see #reqB
+   * @see #optB
+   */
+  public void bqtest(Query q, int[] expDocNrs) throws Exception {
+    qtest(reqB(q), expDocNrs);
+    qtest(optB(q), expDocNrs);
+  }
+  /**
+   * Tests a query using qtest after wrapping it with both optB and reqB
+   * @see #qtest
+   * @see #reqB
+   * @see #optB
+   */
+  public void bqtest(String queryText, int[] expDocNrs) throws Exception {
+    bqtest(makeQuery(queryText), expDocNrs);
+  }
+  
+  /** A filter that only lets the specified document numbers pass */
+  public static class ItemizedFilter extends Filter {
+    int[] docs;
+    public ItemizedFilter(int[] docs) {
+      this.docs = docs;
+    }
+    public BitSet bits(IndexReader r) {
+      BitSet b = new BitSet(r.maxDoc());
+      for (int i = 0; i < docs.length; i++) {
+        b.set(docs[i]);
+      }
+      return b;
+    }
+  }
+
+  /** helper for generating MultiPhraseQueries */
+  public static Term[] ta(String[] s) {
+    Term[] t = new Term[s.length];
+    for (int i = 0; i < s.length; i++) {
+      t[i] = new Term(FIELD, s[i]);
+    }
+    return t;
+  }
+
+  /** MACRO for SpanTermQuery */
+  public SpanTermQuery st(String s) {
+    return new SpanTermQuery(new Term(FIELD,s));
+  }
+  
+  /** MACRO for SpanNotQuery */
+  public SpanNotQuery snot(SpanQuery i, SpanQuery e) {
+    return new SpanNotQuery(i,e);
+  }
+
+  /** MACRO for SpanOrQuery containing two SpanTerm queries */
+  public SpanOrQuery sor(String s, String e) {
+    return sor(st(s), st(e));
+  }
+  /** MACRO for SpanOrQuery containing two SpanQueries */
+  public SpanOrQuery sor(SpanQuery s, SpanQuery e) {
+    return new SpanOrQuery(new SpanQuery[] { s, e });
+  }
+  
+  /** MACRO for SpanOrQuery containing three SpanTerm queries */
+  public SpanOrQuery sor(String s, String m, String e) {
+    return sor(st(s), st(m), st(e));
+  }
+  /** MACRO for SpanOrQuery containing two SpanQueries */
+  public SpanOrQuery sor(SpanQuery s, SpanQuery m, SpanQuery e) {
+    return new SpanOrQuery(new SpanQuery[] { s, m, e });
+  }
+  
+  /** MACRO for SpanNearQuery containing two SpanTerm queries */
+  public SpanNearQuery snear(String s, String e, int slop, boolean inOrder) {
+    return snear(st(s), st(e), slop, inOrder);
+  }
+  /** MACRO for SpanNearQuery containing two SpanQueries */
+  public SpanNearQuery snear(SpanQuery s, SpanQuery e,
+                             int slop, boolean inOrder) {
+    return new SpanNearQuery(new SpanQuery[] { s, e }, slop, inOrder);
+  }
+  
+  
+  /** MACRO for SpanNearQuery containing three SpanTerm queries */
+  public SpanNearQuery snear(String s, String m, String e,
+                             int slop, boolean inOrder) {
+    return snear(st(s), st(m), st(e), slop, inOrder);
+  }
+  /** MACRO for SpanNearQuery containing three SpanQueries */
+  public SpanNearQuery snear(SpanQuery s, SpanQuery m, SpanQuery e,
+                             int slop, boolean inOrder) {
+    return new SpanNearQuery(new SpanQuery[] { s, m, e }, slop, inOrder);
+  }
+  
+  /** MACRO for SpanFirst(SpanTermQuery) */
+  public SpanFirstQuery sf(String s, int b) {
+    return new SpanFirstQuery(st(s), b);
+  }
+
+  /**
+   * MACRO: Wraps a Query in a BooleanQuery so that it is optional, along
+   * with a second clause which will never match anything
+   */
+  public Query optB(String q) throws Exception {
+    return optB(makeQuery(q));
+  }
+  /**
+   * MACRO: Wraps a Query in a BooleanQuery so that it is optional, along
+   * with a second clause which will never match anything
+   */
+  public Query optB(Query q) throws Exception {
+    return buildWrappingB(q, BooleanClause.Occur.SHOULD);
+  }
+  
+  /**
+   * MACRO: Wraps a Query in a BooleanQuery so that it is required, along
+   * with a second clause which will never match anything
+   */
+  public Query reqB(String q) throws Exception {
+    return reqB(makeQuery(q));
+  }
+  /**
+   * MACRO: Wraps a Query in a BooleanQuery so that it is required, along
+   * with a second clause which will never match anything
+   */
+  public Query reqB(Query q) throws Exception {
+    return buildWrappingB(q, BooleanClause.Occur.MUST);
+  }
+
+  private Query buildWrappingB(Query q, BooleanClause.Occur o) {
+    BooleanQuery bq = new BooleanQuery(true);
+    bq.add(q, o);
+    bq.add(new TermQuery(new Term("NEVER","MATCH")), BooleanClause.Occur.MUST_NOT);
+    return bq;
+  }
+  
+  /**
+   * Placeholder: JUnit freaks if you don't have one test ... making
+   * class abstract doesn't help
+   */
+  public void testNoop() {
+    /* NOOP */
+  }
+}

Added: lucene/java/trunk/src/test/org/apache/lucene/search/TestSimpleExplanations.java
URL: http://svn.apache.org/viewvc/lucene/java/trunk/src/test/org/apache/lucene/search/TestSimpleExplanations.java?rev=415476&view=auto
==============================================================================
--- lucene/java/trunk/src/test/org/apache/lucene/search/TestSimpleExplanations.java (added)
+++ lucene/java/trunk/src/test/org/apache/lucene/search/TestSimpleExplanations.java Mon Jun 19 18:13:13 2006
@@ -0,0 +1,319 @@
+package org.apache.lucene.search;
+
+/**
+ * Copyright 2006 Apache Software Foundation
+ *
+ * Licensed 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 org.apache.lucene.store.RAMDirectory;
+
+import org.apache.lucene.index.IndexWriter;
+import org.apache.lucene.index.IndexReader;
+import org.apache.lucene.index.Term;
+
+import org.apache.lucene.analysis.WhitespaceAnalyzer;
+
+import org.apache.lucene.document.Document;
+import org.apache.lucene.document.Field;
+
+import org.apache.lucene.queryParser.QueryParser;
+import org.apache.lucene.queryParser.ParseException;
+
+import junit.framework.TestCase;
+
+import java.util.Random;
+import java.util.BitSet;
+
+/**
+ * TestExplanations subclass focusing on basic query types
+ */
+public class TestSimpleExplanations extends TestExplanations {
+
+  // we focus on queries that don't rewrite to other queries.
+  // if we get those covered well, then the ones that rewrite should
+  // also be covered.
+  
+
+  /* simple term tests */
+  
+  public void testT1() throws Exception {
+    qtest("w1", new int[] { 0,1,2,3 });
+  }
+  public void testT2() throws Exception {
+    qtest("w1^1000", new int[] { 0,1,2,3 });
+  }
+  
+  /* MatchAllDocs */
+  
+  public void testMA1() throws Exception {
+    qtest(new MatchAllDocsQuery(), new int[] { 0,1,2,3 });
+  }
+  public void testMA2() throws Exception {
+    Query q=new MatchAllDocsQuery();
+    q.setBoost(1000);
+    qtest(q, new int[] { 0,1,2,3 });
+  }
+
+  /* some simple phrase tests */
+  
+  public void testP1() throws Exception {
+    qtest("\"w1 w2\"", new int[] { 0 });
+  }
+  public void testP2() throws Exception {
+    qtest("\"w1 w3\"", new int[] { 1,3 });
+  }
+  public void testP3() throws Exception {
+    qtest("\"w1 w2\"~1", new int[] { 0,1,2 });
+  }
+  public void testP4() throws Exception {
+    qtest("\"w2 w3\"~1", new int[] { 0,1,2,3 });
+  }
+  public void testP5() throws Exception {
+    qtest("\"w3 w2\"~1", new int[] { 1,3 });
+  }
+  public void testP6() throws Exception {
+    qtest("\"w3 w2\"~2", new int[] { 0,1,3 });
+  }
+  public void testP7() throws Exception {
+    qtest("\"w3 w2\"~3", new int[] { 0,1,2,3 });
+  }
+
+  /* some simple filtered query tests */
+  
+  public void testFQ1() throws Exception {
+    qtest(new FilteredQuery(qp.parse("w1"),
+                            new ItemizedFilter(new int[] {0,1,2,3})),
+          new int[] {0,1,2,3});
+  }
+  public void testFQ2() throws Exception {
+    qtest(new FilteredQuery(qp.parse("w1"),
+                            new ItemizedFilter(new int[] {0,2,3})),
+          new int[] {0,2,3});
+  }
+  public void testFQ3() throws Exception {
+    qtest(new FilteredQuery(qp.parse("xx"),
+                            new ItemizedFilter(new int[] {1,3})),
+          new int[] {3});
+  }
+  public void testFQ4() throws Exception {
+    qtest(new FilteredQuery(qp.parse("xx^1000"),
+                            new ItemizedFilter(new int[] {1,3})),
+          new int[] {3});
+  }
+  public void testFQ6() throws Exception {
+    Query q = new FilteredQuery(qp.parse("xx"),
+                                new ItemizedFilter(new int[] {1,3}));
+    q.setBoost(1000);
+    qtest(q, new int[] {3});
+  }
+  public void testFQ7() throws Exception {
+    Query q = new FilteredQuery(qp.parse("xx"),
+                                new ItemizedFilter(new int[] {1,3}));
+    q.setBoost(0);
+    qtest(q, new int[] {3});
+  }
+
+  /* ConstantScoreQueries */
+  
+  public void testCSQ1() throws Exception {
+    Query q = new ConstantScoreQuery(new ItemizedFilter(new int[] {0,1,2,3}));
+    qtest(q, new int[] {0,1,2,3});
+  }
+  public void testCSQ2() throws Exception {
+    Query q = new ConstantScoreQuery(new ItemizedFilter(new int[] {1,3}));
+    qtest(q, new int[] {1,3});
+  }
+  public void testCSQ3() throws Exception {
+    Query q = new ConstantScoreQuery(new ItemizedFilter(new int[] {0,2}));
+    q.setBoost(1000);
+    qtest(q, new int[] {0,2});
+  }
+  
+  /* DisjunctionMaxQuery */
+  
+  public void testDMQ1() throws Exception {
+    DisjunctionMaxQuery q = new DisjunctionMaxQuery(0.0f);
+    q.add(qp.parse("w1"));
+    q.add(qp.parse("w5"));
+    qtest(q, new int[] { 0,1,2,3 });
+  }
+  public void testDMQ2() throws Exception {
+    DisjunctionMaxQuery q = new DisjunctionMaxQuery(0.5f);
+    q.add(qp.parse("w1"));
+    q.add(qp.parse("w5"));
+    qtest(q, new int[] { 0,1,2,3 });
+  }
+  public void testDMQ3() throws Exception {
+    DisjunctionMaxQuery q = new DisjunctionMaxQuery(0.5f);
+    q.add(qp.parse("QQ"));
+    q.add(qp.parse("w5"));
+    qtest(q, new int[] { 0 });
+  }
+  public void testDMQ4() throws Exception {
+    DisjunctionMaxQuery q = new DisjunctionMaxQuery(0.5f);
+    q.add(qp.parse("QQ"));
+    q.add(qp.parse("xx"));
+    qtest(q, new int[] { 2,3 });
+  }
+  public void testDMQ5() throws Exception {
+    DisjunctionMaxQuery q = new DisjunctionMaxQuery(0.5f);
+    q.add(qp.parse("yy -QQ"));
+    q.add(qp.parse("xx"));
+    qtest(q, new int[] { 2,3 });
+  }
+  public void testDMQ6() throws Exception {
+    DisjunctionMaxQuery q = new DisjunctionMaxQuery(0.5f);
+    q.add(qp.parse("-yy w3"));
+    q.add(qp.parse("xx"));
+    qtest(q, new int[] { 0,1,2,3 });
+  }
+  public void testDMQ7() throws Exception {
+    DisjunctionMaxQuery q = new DisjunctionMaxQuery(0.5f);
+    q.add(qp.parse("-yy w3"));
+    q.add(qp.parse("w2"));
+    qtest(q, new int[] { 0,1,2,3 });
+  }
+  public void testDMQ8() throws Exception {
+    DisjunctionMaxQuery q = new DisjunctionMaxQuery(0.5f);
+    q.add(qp.parse("yy w5^100"));
+    q.add(qp.parse("xx^100000"));
+    qtest(q, new int[] { 0,2,3 });
+  }
+  public void testDMQ9() throws Exception {
+    DisjunctionMaxQuery q = new DisjunctionMaxQuery(0.5f);
+    q.add(qp.parse("yy w5^100"));
+    q.add(qp.parse("xx^0"));
+    qtest(q, new int[] { 0,2,3 });
+  }
+  
+  /* MultiPhraseQuery */
+  
+  public void testMPQ1() throws Exception {
+    MultiPhraseQuery q = new MultiPhraseQuery();
+    q.add(ta(new String[] {"w1"}));
+    q.add(ta(new String[] {"w2","w3", "xx"}));
+    qtest(q, new int[] { 0,1,2,3 });
+  }
+  public void testMPQ2() throws Exception {
+    MultiPhraseQuery q = new MultiPhraseQuery();
+    q.add(ta(new String[] {"w1"}));
+    q.add(ta(new String[] {"w2","w3"}));
+    qtest(q, new int[] { 0,1,3 });
+  }
+  public void testMPQ3() throws Exception {
+    MultiPhraseQuery q = new MultiPhraseQuery();
+    q.add(ta(new String[] {"w1","xx"}));
+    q.add(ta(new String[] {"w2","w3"}));
+    qtest(q, new int[] { 0,1,2,3 });
+  }
+  public void testMPQ4() throws Exception {
+    MultiPhraseQuery q = new MultiPhraseQuery();
+    q.add(ta(new String[] {"w1"}));
+    q.add(ta(new String[] {"w2"}));
+    qtest(q, new int[] { 0 });
+  }
+  public void testMPQ5() throws Exception {
+    MultiPhraseQuery q = new MultiPhraseQuery();
+    q.add(ta(new String[] {"w1"}));
+    q.add(ta(new String[] {"w2"}));
+    q.setSlop(1);
+    qtest(q, new int[] { 0,1,2 });
+  }
+  public void testMPQ6() throws Exception {
+    MultiPhraseQuery q = new MultiPhraseQuery();
+    q.add(ta(new String[] {"w1","w3"}));
+    q.add(ta(new String[] {"w2"}));
+    q.setSlop(1);
+    qtest(q, new int[] { 0,1,2,3 });
+  }
+
+  /* some simple tests of boolean queries containing term queries */
+  
+  public void testBQ1() throws Exception {
+    qtest("+w1 +w2", new int[] { 0,1,2,3 });
+  }
+  public void testBQ2() throws Exception {
+    qtest("+yy +w3", new int[] { 2,3 });
+  }
+  public void testBQ3() throws Exception {
+    qtest("yy +w3", new int[] { 0,1,2,3 });
+  }
+  public void testBQ4() throws Exception {
+    qtest("w1 (-xx w2)", new int[] { 0,1,2,3 });
+  }
+  public void testBQ5() throws Exception {
+    qtest("w1 (+qq w2)", new int[] { 0,1,2,3 });
+  }
+  public void testBQ6() throws Exception {
+    qtest("w1 -(-qq w5)", new int[] { 1,2,3 });
+  }
+  public void testBQ7() throws Exception {
+    qtest("+w1 +(qq (xx -w2) (+w3 +w4))", new int[] { 0 });
+  }
+  public void testBQ8() throws Exception {
+    qtest("+w1 (qq (xx -w2) (+w3 +w4))", new int[] { 0,1,2,3 });
+  }
+  public void testBQ9() throws Exception {
+    qtest("+w1 (qq (-xx w2) -(+w3 +w4))", new int[] { 0,1,2,3 });
+  }
+  public void testBQ10() throws Exception {
+    qtest("+w1 +(qq (-xx w2) -(+w3 +w4))", new int[] { 1 });
+  }
+  public void testBQ11() throws Exception {
+    qtest("w1 w2^1000.0", new int[] { 0,1,2,3 });
+  }
+  public void testBQ14() throws Exception {
+    BooleanQuery q = new BooleanQuery(true);
+    q.add(qp.parse("QQQQQ"), BooleanClause.Occur.SHOULD);
+    q.add(qp.parse("w1"), BooleanClause.Occur.SHOULD);
+    qtest(q, new int[] { 0,1,2,3 });
+  }
+  public void testBQ15() throws Exception {
+    BooleanQuery q = new BooleanQuery(true);
+    q.add(qp.parse("QQQQQ"), BooleanClause.Occur.MUST_NOT);
+    q.add(qp.parse("w1"), BooleanClause.Occur.SHOULD);
+    qtest(q, new int[] { 0,1,2,3 });
+  }
+  public void testBQ16() throws Exception {
+    BooleanQuery q = new BooleanQuery(true);
+    q.add(qp.parse("QQQQQ"), BooleanClause.Occur.SHOULD);
+    q.add(qp.parse("w1 -xx"), BooleanClause.Occur.SHOULD);
+    qtest(q, new int[] { 0,1 });
+  }
+  public void testBQ17() throws Exception {
+    BooleanQuery q = new BooleanQuery(true);
+    q.add(qp.parse("w2"), BooleanClause.Occur.SHOULD);
+    q.add(qp.parse("w1 -xx"), BooleanClause.Occur.SHOULD);
+    qtest(q, new int[] { 0,1,2,3 });
+  }
+  public void testBQ19() throws Exception {
+    qtest("-yy w3", new int[] { 0,1 });
+  }
+  
+  public void testBQ20() throws Exception {
+    BooleanQuery q = new BooleanQuery();
+    q.setMinimumNumberShouldMatch(2);
+    q.add(qp.parse("QQQQQ"), BooleanClause.Occur.SHOULD);
+    q.add(qp.parse("yy"), BooleanClause.Occur.SHOULD);
+    q.add(qp.parse("zz"), BooleanClause.Occur.SHOULD);
+    q.add(qp.parse("w5"), BooleanClause.Occur.SHOULD);
+    q.add(qp.parse("w4"), BooleanClause.Occur.SHOULD);
+    
+    qtest(q, new int[] { 0,3 });
+    
+  }
+  
+  
+}

Added: lucene/java/trunk/src/test/org/apache/lucene/search/TestSimpleExplanationsOfNonMatches.java
URL: http://svn.apache.org/viewvc/lucene/java/trunk/src/test/org/apache/lucene/search/TestSimpleExplanationsOfNonMatches.java?rev=415476&view=auto
==============================================================================
--- lucene/java/trunk/src/test/org/apache/lucene/search/TestSimpleExplanationsOfNonMatches.java (added)
+++ lucene/java/trunk/src/test/org/apache/lucene/search/TestSimpleExplanationsOfNonMatches.java Mon Jun 19 18:13:13 2006
@@ -0,0 +1,54 @@
+package org.apache.lucene.search;
+
+/**
+ * Copyright 2006 Apache Software Foundation
+ *
+ * Licensed 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 org.apache.lucene.store.RAMDirectory;
+
+import org.apache.lucene.index.IndexWriter;
+import org.apache.lucene.index.IndexReader;
+import org.apache.lucene.index.Term;
+
+import org.apache.lucene.analysis.WhitespaceAnalyzer;
+
+import org.apache.lucene.document.Document;
+import org.apache.lucene.document.Field;
+
+import org.apache.lucene.queryParser.QueryParser;
+import org.apache.lucene.queryParser.ParseException;
+
+import junit.framework.TestCase;
+
+import java.util.Random;
+import java.util.BitSet;
+
+/**
+ * subclass of TestSimpleExplanations that verifies non matches.
+ */
+public class TestSimpleExplanationsOfNonMatches
+  extends TestSimpleExplanations {
+
+  /**
+   * Overrides superclass to ignore matches and focus on non-matches
+   *
+   * @see CheckHits#checkNoMatchExplanations
+   */
+  public void qtest(Query q, int[] expDocNrs) throws Exception {
+    CheckHits.checkNoMatchExplanations(q, FIELD, searcher, expDocNrs);
+  }
+    
+}