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Posted to commits@datasketches.apache.org by le...@apache.org on 2023/06/01 00:42:30 UTC

[datasketches-java] branch revert_items_changes_prepare4.1.0 created (now e56f0760)

This is an automated email from the ASF dual-hosted git repository.

leerho pushed a change to branch revert_items_changes_prepare4.1.0
in repository https://gitbox.apache.org/repos/asf/datasketches-java.git


      at e56f0760 Removed partial ItemsSketch work.

This branch includes the following new commits:

     new e56f0760 Removed partial ItemsSketch work.

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[datasketches-java] 01/01: Removed partial ItemsSketch work.

Posted by le...@apache.org.
This is an automated email from the ASF dual-hosted git repository.

leerho pushed a commit to branch revert_items_changes_prepare4.1.0
in repository https://gitbox.apache.org/repos/asf/datasketches-java.git

commit e56f0760fdb6aa2e68bd7b9d875bf9deba33e935
Author: Lee Rhodes <le...@users.noreply.github.com>
AuthorDate: Wed May 31 17:42:18 2023 -0700

    Removed partial ItemsSketch work.
    
    Left some TODOs as place holders.
    
    Left improvements over 4.0.0.
    
    This becomes the basis for 3.1.0 changes.
    
    Runs all unit tests.
---
 .../apache/datasketches/hll/DirectCouponList.java  |   2 +-
 .../apache/datasketches/kll/KllGenericProxy.java   |  79 -----
 .../org/apache/datasketches/kll/KllHelper.java     |  39 ++-
 .../apache/datasketches/kll/KllItemsSketch.java    | 320 ---------------------
 .../org/apache/datasketches/kll/KllSketch.java     |   3 +-
 .../datasketches/quantiles/KolmogorovSmirnov.java  |   2 +-
 .../apache/datasketches/theta/PreambleUtil.java    |   1 -
 .../apache/datasketches/hll/PreambleUtilTest.java  |   6 +-
 .../datasketches/kll/KllMiscDirectFloatsTest.java  |   2 +-
 .../quantiles/KolmogorovSmirnovTest.java           |   1 -
 .../arrayofdoubles/ArrayOfDoublesUnionTest.java    |   2 +-
 11 files changed, 27 insertions(+), 430 deletions(-)

diff --git a/src/main/java/org/apache/datasketches/hll/DirectCouponList.java b/src/main/java/org/apache/datasketches/hll/DirectCouponList.java
index b6cc64fd..008aac1d 100644
--- a/src/main/java/org/apache/datasketches/hll/DirectCouponList.java
+++ b/src/main/java/org/apache/datasketches/hll/DirectCouponList.java
@@ -122,7 +122,7 @@ class DirectCouponList extends AbstractCoupons {
         insertInt(wmem, LIST_INT_ARR_START + (i << 2), coupon);
         int couponCount = extractListCount(mem);
         insertListCount(wmem, ++couponCount);
-        insertEmptyFlag(wmem, false); //TODO only first time
+        insertEmptyFlag(wmem, false); //only first time
         if (couponCount >= len) { //array full
           if (lgConfigK < 8) {
             return promoteListOrSetToHll(this);//oooFlag = false
diff --git a/src/main/java/org/apache/datasketches/kll/KllGenericProxy.java b/src/main/java/org/apache/datasketches/kll/KllGenericProxy.java
deleted file mode 100644
index d424e2c8..00000000
--- a/src/main/java/org/apache/datasketches/kll/KllGenericProxy.java
+++ /dev/null
@@ -1,79 +0,0 @@
-/*
- * 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.datasketches.kll;
-
-import static org.apache.datasketches.kll.KllSketch.Error.TGT_IS_READ_ONLY;
-import static org.apache.datasketches.kll.KllSketch.Error.kllSketchThrow;
-
-abstract class KllGenericProxy<T> extends KllSketch {
-
-  KllGenericProxy() {
-    super(SketchType.ITEMS_SKETCH, null, null);
-  }
-
-  /**
-   * @return full size of internal items array including garbage.
-   */
-  abstract T[] getItemsArray();
-
-  abstract T getSingleItem();
-
-  abstract T getMaxItem();
-
-  abstract T getMinItem();
-
-  abstract void setItemsArray(T[] Items);
-
-  abstract void setItemsArrayAt(int index, T item);
-
-  abstract void setMaxItem(T item);
-
-  abstract void setMinItem(T item);
-
-  /**
-   * Merges another sketch into this one.
-   * Attempting to merge a KllDoublesSketch with a KllFloatsSketch will
-   * throw an exception.
-   * @param other sketch to merge into this one
-   */
-  public final void merge(final KllItemsSketch<T> other) {
-    if (readOnly) { kllSketchThrow(TGT_IS_READ_ONLY); }
-    //KllItemsHelper.mergeItemImpl((KllItemsSketch)this, other); //TODO
-  }
-
-  /**
-   * {@inheritDoc}
-   * <p>The parameter <i>k</i> will not change.</p>
-   */
-  @SuppressWarnings("unchecked")
-  @Override
-  public final void reset() {
-    if (readOnly) { kllSketchThrow(TGT_IS_READ_ONLY); }
-    final int k = getK();
-    setN(0);
-    setMinK(k);
-    setNumLevels(1);
-    setLevelZeroSorted(false);
-    setLevelsArray(new int[] {k, k});
-    setMinItem(null);
-    setMaxItem(null);
-    setItemsArray((T[])(new Object[k]));
-  }
-}
diff --git a/src/main/java/org/apache/datasketches/kll/KllHelper.java b/src/main/java/org/apache/datasketches/kll/KllHelper.java
index 506836ca..86f37fca 100644
--- a/src/main/java/org/apache/datasketches/kll/KllHelper.java
+++ b/src/main/java/org/apache/datasketches/kll/KllHelper.java
@@ -250,9 +250,8 @@ final class KllHelper {
         fltSk.setLevelsArrayAt(lvl, newIndex);
       }
       fltSk.setFloatItemsArray(myFloatItemsArr);
-    } else {
-      //ITEMS_SKETCH //TODO
     }
+    //TODO add items
   }
 
   /**
@@ -359,8 +358,7 @@ final class KllHelper {
       println("Given N         : " + gStats.givenN);
       printf("%10s %10s %20s %13s %15s\n", "NumLevels", "MaxItems", "MaxN", "CompactBytes", "UpdatableBytes");
     }
-    final int typeBytes = sketchType == DOUBLES_SKETCH ? Double.BYTES
-        : sketchType == FLOATS_SKETCH ? Float.BYTES : 0; //TODO
+    final int typeBytes = sketchType == DOUBLES_SKETCH ? Double.BYTES : Float.BYTES;
     do {
       gStats.numLevels++; //
       lvlStats = getFinalSketchStatsAtNumLevels(gStats.k, gStats.m, gStats.numLevels, false);
@@ -473,8 +471,7 @@ final class KllHelper {
       final int newItemsArrLen) {
     final KllSketch.SketchType sketchType = sketch.sketchType;
     final WritableMemory oldWmem = sketch.wmem;
-    final int typeBytes = sketchType == DOUBLES_SKETCH ? Double.BYTES
-        : sketchType == FLOATS_SKETCH ? Float.BYTES : 0; //TODO
+    final int typeBytes = sketchType == DOUBLES_SKETCH ? Double.BYTES : Float.BYTES;
     final int requiredSketchBytes =  DATA_START_ADR
       + newLevelsArrLen * Integer.BYTES
       + 2 * typeBytes
@@ -615,7 +612,7 @@ final class KllHelper {
     if (sketch.getN() == 0) { return byteArr; } //empty
     final KllDoublesSketch dblSk = (sketch.sketchType == DOUBLES_SKETCH) ? (KllDoublesSketch)sketch : null;
     final KllFloatsSketch fltSk = (sketch.sketchType == FLOATS_SKETCH) ? (KllFloatsSketch)sketch : null;
-    //final KllItemsSketch itmSk = (sketch.sketchType == ITEMS_SKETCH) ? (KllItemsSketch)sketch : null; //TODO
+    //TODO add items
 
     //load data
     int offset = DATA_START_ADR_SINGLE_ITEM;
@@ -624,7 +621,7 @@ final class KllHelper {
       switch (sketch.sketchType) {
         case DOUBLES_SKETCH : wmem.putDouble(offset,  dblSk.getDoubleItemsArray()[myLevelsArr[0]]); break;
         case FLOATS_SKETCH  : wmem.putFloat(offset, fltSk.getFloatItemsArray()[myLevelsArr[0]]); break;
-        case ITEMS_SKETCH : break; //TODO
+        //case ITEMS_SKETCH : break; //TODO
         default: throw new IllegalStateException("Unknown Sketch Type");
       }
     } else { // n > 1
@@ -657,7 +654,7 @@ final class KllHelper {
           wmem.putFloatArray(offset, fltSk.getFloatItemsArray(), myLevelsArr[0], sketch.getNumRetained());
           break;
         }
-        case ITEMS_SKETCH : break; //TODO
+        //case ITEMS_SKETCH : break; //TODO
         default: throw new IllegalStateException("Unknown Sketch Type");
       }
 
@@ -707,10 +704,10 @@ final class KllHelper {
         ByteArrayUtil.putDoubleLE(byteArr, DATA_START_ADR_SINGLE_ITEM, dblSk.getDoubleSingleItem());
         break;
       }
-      case ITEMS_SKETCH: {
-        byteArr = null; //TODO
-        break;
-      }
+//      case ITEMS_SKETCH: {
+//        byteArr = null; //TODO
+//        break;
+//      }
       default: return null; //can't happen
     }
     return byteArr;
@@ -859,9 +856,9 @@ final class KllHelper {
       final float[] floatItemsArr = fltSk.getFloatItemsArray();
       wmem.putFloatArray(offset, floatItemsArr, 0, floatItemsArr.length);
     }
-    else {
-      //ITEMS_SKETCH //TODO
-    }
+//    else {
+//      //ITEMS_SKETCH //TODO
+//    }
     return byteArr;
   }
 
@@ -921,9 +918,10 @@ final class KllHelper {
       maxFloat = fltSk.getMaxFloatItem();
       myCurFloatItemsArr = fltSk.getFloatItemsArray();
       assert myCurFloatItemsArr.length == myCurTotalItemsCapacity;
-    } else {
-      //ITEMS_SKETCH //TODO
     }
+//    else {
+//      //ITEMS_SKETCH //TODO
+//    }
     assert myCurLevelsArr[0] == 0; //definition of full is part of the growth scheme
 
     final int deltaItemsCap = levelCapacity(sketch.getK(), myCurNumLevels + 1, 0, sketch.getM());
@@ -959,9 +957,10 @@ final class KllHelper {
       myNewFloatItemsArr = new float[myNewTotalItemsCapacity];
       // copy and shift the current items data into the new array
       System.arraycopy(myCurFloatItemsArr, 0, myNewFloatItemsArr, deltaItemsCap, myCurTotalItemsCapacity);
-    } else {
-      //ITEMS_SKETCH // TODO
     }
+//    else {
+//      //ITEMS_SKETCH // TODO
+//    }
 
     //MEMORY SPACE MANAGEMENT
     if (sketch.updatableMemFormat) {
diff --git a/src/main/java/org/apache/datasketches/kll/KllItemsSketch.java b/src/main/java/org/apache/datasketches/kll/KllItemsSketch.java
deleted file mode 100644
index 00d44dea..00000000
--- a/src/main/java/org/apache/datasketches/kll/KllItemsSketch.java
+++ /dev/null
@@ -1,320 +0,0 @@
-/*
- * 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.datasketches.kll;
-
-import static java.lang.Math.max;
-import static java.lang.Math.min;
-
-import java.util.Comparator;
-import java.util.Objects;
-
-import org.apache.datasketches.common.ArrayOfItemsSerDe;
-import org.apache.datasketches.quantilescommon.GenericSortedView;
-import org.apache.datasketches.quantilescommon.QuantileSearchCriteria;
-import org.apache.datasketches.quantilescommon.QuantilesGenericAPI;
-import org.apache.datasketches.quantilescommon.QuantilesGenericSketchIterator;
-
-public class KllItemsSketch<T> extends KllGenericProxy<T> implements QuantilesGenericAPI<T> {
-  private final int k_; // configured size of K.
-  private final int m_; // configured size of M.
-  private long n_;      // number of items input into this sketch.
-  private int minK_;    // dynamic minK for error estimation after merging with different k.
-  private boolean isLevelZeroSorted_;
-  private T maxItem_;
-  private T minItem_;
-  Object[] items_;
-  final Class<T> clazz_;
-  private final Comparator<? super T> comparator_;
-  private final ArrayOfItemsSerDe<T> serDe_;
-
-  KllItemsSketch(
-      final int k,
-      final int m,
-      final Class<T> clazz,
-      final Comparator<? super T> comparator,
-      final ArrayOfItemsSerDe<T> serDe) {
-    super();
-    Objects.requireNonNull(clazz, "Class<T> must not be null.");
-    Objects.requireNonNull(comparator, "Comparator must not be null.");
-    Objects.requireNonNull(serDe, "Serializer/Deserializer must not be null.");
-    KllHelper.checkM(m);
-    KllHelper.checkK(k, m);
-    k_ = k;
-    m_ = DEFAULT_M;
-    n_ = 0;
-    minK_ = k;
-    isLevelZeroSorted_ = false;
-    maxItem_ = null;
-    minItem_ = null;
-    items_ = new Object[k];
-    levelsArr = new int[] {k, k};
-    clazz_ = clazz;
-    comparator_ = comparator;
-    serDe_ = serDe;
-  }
-
-  /**
-   * Create a new heap instance of this sketch with the default <em>k = 200</em>.
-   * The default <em>k</em> = 200 results in a normalized rank error of about
-   * 1.65%. Larger K will have smaller error but the sketch will be larger (and slower).
-   * This will have a rank error of about 1.65%.
-   * @param <T> The sketch data type
-   * @param clazz the given class of T
-   * @param comparator to compare items
-   * @param serDe Serializer / deserializer for an array of items, <i>T[]</i>.
-   * @return new KllItemsSketch on the heap.
-   */
-  public static <T> KllItemsSketch<T> newHeapInstance(
-      final Class<T> clazz,
-      final Comparator<? super T> comparator,
-      final ArrayOfItemsSerDe<T> serDe) {
-      final KllItemsSketch<T> itmSk = new KllItemsSketch<T>(DEFAULT_K, DEFAULT_M, clazz, comparator, serDe);
-    return itmSk;
-  }
-
-  /**
-   * Create a new heap instance of this sketch with a given parameter <em>k</em>.
-   * <em>k</em> can be between DEFAULT_M and 65535, inclusive.
-   * The default <em>k</em> = 200 results in a normalized rank error of about
-   * 1.65%. Larger K will have smaller error but the sketch will be larger (and slower).
-   * @param k parameter that controls size of the sketch and accuracy of estimates.
-   * @param <T> The sketch data type
-   * @param clazz the given class of T
-   * @param comparator to compare items
-   * @param serDe Serializer / deserializer for an array of items, <i>T[]</i>.
-   * @return new KllItemsSketch on the heap.
-   */
-  public static <T> KllItemsSketch<T> newHeapInstance(
-      final int k,
-      final Class<T> clazz,
-      final Comparator<? super T> comparator,
-      final ArrayOfItemsSerDe<T> serDe) {
-      final KllItemsSketch<T> itmSk = new KllItemsSketch<T>(k, DEFAULT_M, clazz, comparator, serDe);
-    return itmSk;
-  }
-
-  /**
-   * {@inheritDoc}
-   * The approximate probability that the true rank is within the confidence interval
-   * specified by the upper and lower rank bounds for this sketch is 0.99.
-   */
-  @Override
-  public double getRankLowerBound(final double rank) {
-    return max(0.0, rank - KllHelper.getNormalizedRankError(getMinK(), false));
-  }
-
-  /**
-   * {@inheritDoc}
-   * The approximate probability that the true rank is within the confidence interval
-   * specified by the upper and lower rank bounds for this sketch is 0.99.
-   */
-  @Override
-  public double getRankUpperBound(final double rank) {
-    return min(1.0, rank + KllHelper.getNormalizedRankError(getMinK(), false));
-  }
-
-  @Override
-  public double[] getCDF(final T[] splitPoints, final QuantileSearchCriteria searchCrit) {
-    // TODO Auto-generated method stub
-    return null;
-  }
-
-  @Override
-  public T getMaxItem() {
-    // TODO Auto-generated method stub
-    return null;
-  }
-
-  @Override
-  public T getMinItem() {
-    // TODO Auto-generated method stub
-    return null;
-  }
-
-  @Override
-  public GenericPartitionBoundaries<T> getPartitionBoundaries(final int numEquallyWeighted,
-      final QuantileSearchCriteria searchCrit) {
-    // TODO Auto-generated method stub
-    return null;
-  }
-
-  @Override
-  public double[] getPMF(final T[] splitPoints, final QuantileSearchCriteria searchCrit) {
-    // TODO Auto-generated method stub
-    return null;
-  }
-
-  @Override
-  public T getQuantile(final double rank, final QuantileSearchCriteria searchCrit) {
-    // TODO Auto-generated method stub
-    return null;
-  }
-
-  @Override
-  public T getQuantileLowerBound(final double rank) {
-    // TODO Auto-generated method stub
-    return null;
-  }
-
-  @Override
-  public T getQuantileUpperBound(final double rank) {
-    // TODO Auto-generated method stub
-    return null;
-  }
-
-  @Override
-  public T[] getQuantiles(final double[] ranks, final QuantileSearchCriteria searchCrit) {
-    // TODO Auto-generated method stub
-    return null;
-  }
-
-  @Override
-  public double getRank(final T quantile, final QuantileSearchCriteria searchCrit) {
-    // TODO Auto-generated method stub
-    return 0;
-  }
-
-  @Override
-  public double[] getRanks(final T[] quantiles, final QuantileSearchCriteria searchCrit) {
-    // TODO Auto-generated method stub
-    return null;
-  }
-
-  @Override
-  public GenericSortedView<T> getSortedView() {
-    // TODO Auto-generated method stub
-    return null;
-  }
-
-  @Override
-  public QuantilesGenericSketchIterator<T> iterator() {
-    // TODO Auto-generated method stub
-    return null;
-  }
-
-  @Override
-  public void update(final T item) {
-    // TODO Auto-generated method stub
-
-  }
-
-  @Override
-  public int getK() {
-    // TODO Auto-generated method stub
-    return 0;
-  }
-
-  @Override
-  public long getN() {
-    // TODO Auto-generated method stub
-    return 0;
-  }
-
-  @Override
-  int getM() {
-    // TODO Auto-generated method stub
-    return 0;
-  }
-
-  @Override
-  int getMinK() {
-    // TODO Auto-generated method stub
-    return 0;
-  }
-
-  @Override
-  void incN() {
-    // TODO Auto-generated method stub
-
-  }
-
-  @Override
-  void incNumLevels() {
-    // TODO Auto-generated method stub
-
-  }
-
-  @Override
-  boolean isLevelZeroSorted() {
-    // TODO Auto-generated method stub
-    return false;
-  }
-
-  @Override
-  void setLevelZeroSorted(final boolean sorted) {
-    // TODO Auto-generated method stub
-
-  }
-
-  @Override
-  void setMinK(final int minK) {
-    // TODO Auto-generated method stub
-
-  }
-
-  @Override
-  void setN(final long n) {
-    // TODO Auto-generated method stub
-
-  }
-
-  @Override
-  void setNumLevels(final int numLevels) {
-    // TODO Auto-generated method stub
-
-  }
-
-  @Override
-  T[] getItemsArray() {
-    // TODO Auto-generated method stub
-    return null;
-  }
-
-  @Override
-  T getSingleItem() {
-    // TODO Auto-generated method stub
-    return null;
-  }
-
-  @Override
-  void setItemsArray(final T[] Items) {
-    // TODO Auto-generated method stub
-
-  }
-
-  @Override
-  void setItemsArrayAt(final int index, final T item) {
-    // TODO Auto-generated method stub
-
-  }
-
-  @Override
-  void setMaxItem(final T item) {
-    // TODO Auto-generated method stub
-
-  }
-
-  @Override
-  void setMinItem(final T item) {
-    // TODO Auto-generated method stub
-
-  }
-
-}
diff --git a/src/main/java/org/apache/datasketches/kll/KllSketch.java b/src/main/java/org/apache/datasketches/kll/KllSketch.java
index ed00321f..eb264aa9 100644
--- a/src/main/java/org/apache/datasketches/kll/KllSketch.java
+++ b/src/main/java/org/apache/datasketches/kll/KllSketch.java
@@ -345,9 +345,8 @@ public abstract class KllSketch implements QuantilesAPI {
     } else if (sketchType == FLOATS_SKETCH) {
       if (!other.isFloatsSketch()) { kllSketchThrow(SRC_MUST_BE_FLOAT); }
       KllFloatsHelper.mergeFloatImpl((KllFloatsSketch)this, other);
-    } else {
-      //ITEMS_SKETCH //TODO
     }
+    //TODO items
   }
 
   @Override
diff --git a/src/main/java/org/apache/datasketches/quantiles/KolmogorovSmirnov.java b/src/main/java/org/apache/datasketches/quantiles/KolmogorovSmirnov.java
index ef2b9004..c290b059 100644
--- a/src/main/java/org/apache/datasketches/quantiles/KolmogorovSmirnov.java
+++ b/src/main/java/org/apache/datasketches/quantiles/KolmogorovSmirnov.java
@@ -25,7 +25,7 @@ package org.apache.datasketches.quantiles;
  */
 final class KolmogorovSmirnov {
 
-  //TODO This KS test will have to be redesigned to accomodate REQ sketches.
+  //TODO This KS test will have to be redesigned to accommodate REQ sketches.
 
   /**
    * Computes the raw delta area between two quantile sketches for the
diff --git a/src/main/java/org/apache/datasketches/theta/PreambleUtil.java b/src/main/java/org/apache/datasketches/theta/PreambleUtil.java
index 2a6c9790..562be982 100644
--- a/src/main/java/org/apache/datasketches/theta/PreambleUtil.java
+++ b/src/main/java/org/apache/datasketches/theta/PreambleUtil.java
@@ -477,7 +477,6 @@ final class PreambleUtil {
     wmem.putLong(UNION_THETA_LONG, unionThetaLong);
   }
 
-  //TODO convert these to set/clear/any bits
   static void setEmpty(final WritableMemory wmem) {
     int flags = wmem.getByte(FLAGS_BYTE) & 0XFF;
     flags |= EMPTY_FLAG_MASK;
diff --git a/src/test/java/org/apache/datasketches/hll/PreambleUtilTest.java b/src/test/java/org/apache/datasketches/hll/PreambleUtilTest.java
index 2c56b24e..cd1e0cbc 100644
--- a/src/test/java/org/apache/datasketches/hll/PreambleUtilTest.java
+++ b/src/test/java/org/apache/datasketches/hll/PreambleUtilTest.java
@@ -31,18 +31,18 @@ import static org.testng.Assert.assertFalse;
 import static org.testng.Assert.assertTrue;
 import static org.testng.Assert.fail;
 
-import org.testng.annotations.Test;
 import org.apache.datasketches.common.SketchesArgumentException;
 import org.apache.datasketches.memory.Memory;
 import org.apache.datasketches.memory.WritableMemory;
+import org.testng.annotations.Test;
 
 /**
  * @author Lee Rhodes
  */
 public class PreambleUtilTest {
 
-  @Test
-  public void preambleToString() { //TODO Check Visually
+  //@Test
+  public void preambleToString() { // Check Visually
     int bytes = HllSketch.getMaxUpdatableSerializationBytes(8, TgtHllType.HLL_4);
     byte[] byteArr1 = new byte[bytes];
     WritableMemory wmem1 = WritableMemory.writableWrap(byteArr1);
diff --git a/src/test/java/org/apache/datasketches/kll/KllMiscDirectFloatsTest.java b/src/test/java/org/apache/datasketches/kll/KllMiscDirectFloatsTest.java
index ed141e7b..4755a4ab 100644
--- a/src/test/java/org/apache/datasketches/kll/KllMiscDirectFloatsTest.java
+++ b/src/test/java/org/apache/datasketches/kll/KllMiscDirectFloatsTest.java
@@ -391,7 +391,7 @@ public class KllMiscDirectFloatsTest {
   public void checkSizes() {
     KllFloatsSketch sk = getDFSketch(20, 0);
     for (int i = 1; i <= 21; i++) { sk.update(i); }
-    println(sk.toString(true, true)); //TODO
+    //println(sk.toString(true, true));
     byte[] byteArr1 = KllHelper.toUpdatableByteArrayImpl(sk);
     int size1 = sk.getCurrentUpdatableSerializedSizeBytes();
     assertEquals(size1, byteArr1.length);
diff --git a/src/test/java/org/apache/datasketches/quantiles/KolmogorovSmirnovTest.java b/src/test/java/org/apache/datasketches/quantiles/KolmogorovSmirnovTest.java
index 20d5f1b3..fd8e4f71 100644
--- a/src/test/java/org/apache/datasketches/quantiles/KolmogorovSmirnovTest.java
+++ b/src/test/java/org/apache/datasketches/quantiles/KolmogorovSmirnovTest.java
@@ -43,7 +43,6 @@ public class KolmogorovSmirnovTest {
      s1.update(x + 500);
      s2.update(x);
    }
-   //TODO NEED TO FIX KS Algo, it assumed non-inclusive cumulative weight arrays
    //assertEquals(KolmogorovSmirnov.computeKSDelta(s1, s2), 1.0, 1E-6);
    println("D = " + KolmogorovSmirnov.computeKSDelta(s1, s2));
  }
diff --git a/src/test/java/org/apache/datasketches/tuple/arrayofdoubles/ArrayOfDoublesUnionTest.java b/src/test/java/org/apache/datasketches/tuple/arrayofdoubles/ArrayOfDoublesUnionTest.java
index fd530a12..5171c654 100644
--- a/src/test/java/org/apache/datasketches/tuple/arrayofdoubles/ArrayOfDoublesUnionTest.java
+++ b/src/test/java/org/apache/datasketches/tuple/arrayofdoubles/ArrayOfDoublesUnionTest.java
@@ -467,7 +467,7 @@ public class ArrayOfDoublesUnionTest {
     WritableMemory mem2 = WritableMemory.writableWrap(new byte[1_000_000]);
     ArrayOfDoublesCompactSketch dcsk = sketch.compact(mem2);
     ArrayOfDoublesUnion union = ArrayOfDoublesSketches.wrapUnion(mem); //empty union
-    union.union(dcsk); //TODO est error
+    union.union(dcsk);
     //ArrayOfDoublesSketches.wrapUnion(mem).union(sketch.compact(WritableMemory.writableWrap(new byte[1_000_000])));
 
     final ArrayOfDoublesSketch result = ArrayOfDoublesUnion.wrap(mem).getResult();


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