diff --git lucene/src/test/org/apache/lucene/search/similarities/EasyStats.java lucene/src/test/org/apache/lucene/search/similarities/EasyStats.java
new file mode 100644
index 0000000..6f79386
--- /dev/null
+++ lucene/src/test/org/apache/lucene/search/similarities/EasyStats.java
@@ -0,0 +1,137 @@
+package org.apache.lucene.search.similarities;
+
+import org.apache.lucene.search.Similarity;
+
+/**
+ * Stores all statistics commonly used ranking methods.
+ * @lucene.experimental
+ */
+public class EasyStats extends Similarity.Stats {
+  /** The number of documents. */
+  protected int numberOfDocuments;	// TODO: to long?
+  /** The total number of tokens in the field. */
+  protected long noFieldTokens;
+  /** The average field length. */
+  protected float avgFieldLength;
+  /** The document frequency. */
+  protected int docFreq;
+  /** The total number of occurrences of this term across all documents. */
+  // TODO: same field?
+  protected long totalTermFreq;
+  /** The total number of terms across all documents. */
+  // TODO: same field?
+  protected long sumTotalTermFreq;
+  /** The number of unique terms. */
+  // nocommit might be per-segment only
+  protected long uniqueTermCount;
+  
+  // -------------------------- Boost-related stuff --------------------------
+  
+  /** Query's inner boost. */
+  protected final float queryBoost;
+  /** Any outer query's boost. */
+  protected float topLevelBoost;
+  
+  /** Constructor. Sets the query boost. */
+  public EasyStats(float queryBoost) {
+    this.queryBoost = queryBoost;
+  }
+  
+  // ------------------------- Getter/setter methods -------------------------
+  
+  /** Returns the number of documents. */
+  public int getNumberOfDocuments() {
+    return numberOfDocuments;
+  }
+  
+  /** Sets the number of documents. */
+  public void setNumberOfDocuments(int numberOfDocuments) {
+    this.numberOfDocuments = numberOfDocuments;
+  }
+  
+  /** Returns the total number of tokens in the field. */
+  public long getNoFieldTokens() {
+    return noFieldTokens;
+  }
+  
+  /** Sets the total number of tokens in the field. */
+  public void setNoFieldTokens(long noFieldTokens) {
+    this.noFieldTokens = noFieldTokens;
+  }
+  
+  /** Returns the average field length. */
+  public float getAvgFieldLength() {
+    return avgFieldLength;
+  }
+  
+  /** Sets the average field length. */
+  public void setAvgFieldLength(float avgFieldLength) {
+    this.avgFieldLength = avgFieldLength;
+  }
+  
+  /** Returns the document frequency. */
+  public int getDocFreq() {
+    return docFreq;
+  }
+  
+  /** Sets the document frequency. */
+  public void setDocFreq(int docFreq) {
+    this.docFreq = docFreq;
+  }
+  
+  /** Returns the total number of occurrences of this term across all documents. */
+  public long getTotalTermFreq() {
+    return totalTermFreq;
+  }
+  
+  /** Sets the total number of occurrences of this term across all documents. */
+  public void setTotalTermFreq(long totalTermFreq) {
+    this.totalTermFreq = totalTermFreq;
+  }
+  
+  /** Returns the total number of terms across all documents. */
+  public long getSumTotalTermFreq() {
+    return sumTotalTermFreq;
+  }
+  
+  /** Sets the total number of terms across all documents. */
+  public void setSumTotalTermFreq(long sumTotalTermFreq) {
+    this.sumTotalTermFreq = sumTotalTermFreq;
+  }
+  
+  /** Returns the number of unique terms. */
+  public long getUniqueTermCount() {
+    return uniqueTermCount;
+  }
+  
+  /** Sets the number of unique terms. */
+  public void setUniqueTermCount(long uniqueTermCount) {
+    this.uniqueTermCount = uniqueTermCount;
+  }
+  
+  // -------------------------- Boost-related stuff --------------------------
+  
+  /** The square of the raw normalization value.
+   * @see #rawNormalizationValue() */
+  @Override
+  public float getValueForNormalization() {
+    float rawValue = rawNormalizationValue();
+    return rawValue * rawValue;
+  }
+  
+  /** Computes the raw normalization value. This basic implementation returns
+   * the query boost. Subclasses may override this method to include other
+   * factors (such as idf), or to save the value for inclusion in
+   * {@link #normalize(float, float)}, etc.
+   */
+  protected float rawNormalizationValue() {
+    return queryBoost;
+  }
+  
+  /** No normalization is done. {@code topLevelBoost} is saved in the object,
+   * however. */
+  @Override
+  public void normalize(float queryNorm, float topLevelBoost) {
+    this.topLevelBoost = topLevelBoost;
+  }
+}