1 files changed, 0 insertions, 104 deletions
diff --git a/test/de/lmu/ifi/dbs/elki/math/TestMathUtil.java b/test/de/lmu/ifi/dbs/elki/math/TestMathUtil.java
deleted file mode 100644
index 90112694..00000000
--- a/test/de/lmu/ifi/dbs/elki/math/TestMathUtil.java
+++ /dev/null
@@ -1,104 +0,0 @@
-package de.lmu.ifi.dbs.elki.math;
-
-/*
- This file is part of ELKI:
- Environment for Developing KDD-Applications Supported by Index-Structures
-
- Copyright (C) 2012
- Ludwig-Maximilians-Universität München
- Lehr- und Forschungseinheit für Datenbanksysteme
- ELKI Development Team
-
- This program is free software: you can redistribute it and/or modify
- it under the terms of the GNU Affero General Public License as published by
- the Free Software Foundation, either version 3 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- GNU Affero General Public License for more details.
-
- You should have received a copy of the GNU Affero General Public License
- along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertTrue;
-
-import java.util.Random;
-
-import org.junit.Test;
-
-import de.lmu.ifi.dbs.elki.JUnit4Test;
-
-/**
- * Unit test for some basic math functions.
- * 
- * @author Erich Schubert
- */
-public class TestMathUtil implements JUnit4Test {
-  @Test
-  public void testPearsonCorrelation() {
-    final int size = 1000;
-    final long seed = 1;
-    double[] data1 = new double[size];
-    double[] data2 = new double[size];
-    double[] weight1 = new double[size];
-    double[] weight2 = new double[size];
-
-    Random r = new Random(seed);
-    for (int i = 0; i < size; i++) {
-      data1[i] = r.nextDouble();
-      data2[i] = r.nextDouble();
-      weight1[i] = 1.0;
-      weight2[i] = 0.1;
-    }
-
-    double pear = MathUtil.pearsonCorrelationCoefficient(data1, data2);
-    double wpear1 = MathUtil.weightedPearsonCorrelationCoefficient(data1, data2, weight1);
-    double wpear2 = MathUtil.weightedPearsonCorrelationCoefficient(data1, data2, weight2);
-    assertEquals("Pearson and weighted pearson should be the same with constant weights.", pear, wpear1, 1E-10);
-    assertEquals("Weighted pearsons should be the same with constant weights.", wpear1, wpear2, 1E-10);
-  }
-
-  @Test
-  public void testBitMath() {
-    assertEquals("Bit math issues", 1024, MathUtil.nextPow2Int(912));
-    assertEquals("Bit math issues", 8, MathUtil.nextPow2Int(5));
-    assertEquals("Bit math issues", 4, MathUtil.nextPow2Int(4));
-    assertEquals("Bit math issues", 4, MathUtil.nextPow2Int(3));
-    assertEquals("Bit math issues", 2, MathUtil.nextPow2Int(2));
-    assertEquals("Bit math issues", 1, MathUtil.nextPow2Int(1));
-    assertEquals("Bit math issues", 0, MathUtil.nextPow2Int(0));
-    assertEquals("Bit math issues", 1024L, MathUtil.nextPow2Long(912L));
-    assertEquals("Bit math issues", 0, MathUtil.nextPow2Int(-1));
-    assertEquals("Bit math issues", 0, MathUtil.nextPow2Int(-2));
-    assertEquals("Bit math issues", 0, MathUtil.nextPow2Int(-99));
-    assertEquals("Bit math issues", 15, MathUtil.nextAllOnesInt(8));
-    assertEquals("Bit math issues", 7, MathUtil.nextAllOnesInt(4));
-    assertEquals("Bit math issues", 3, MathUtil.nextAllOnesInt(3));
-    assertEquals("Bit math issues", 3, MathUtil.nextAllOnesInt(2));
-    assertEquals("Bit math issues", 1, MathUtil.nextAllOnesInt(1));
-    assertEquals("Bit math issues", 0, MathUtil.nextAllOnesInt(0));
-    assertEquals("Bit math issues", -1, MathUtil.nextAllOnesInt(-1));
-    assertEquals("Bit math issues", 0, 0 >>> 1);
-  }
-
-  @Test
-  public void testFloatToDouble() {
-    Random r = new Random(1l);
-    for (int i = 0; i < 10000; i++) {
-      final double dbl = Double.longBitsToDouble(r.nextLong());
-      final float flt = (float) dbl;
-      final double uppd = MathUtil.floatToDoubleUpper(flt);
-      final float uppf = (float) uppd;
-      final double lowd = MathUtil.floatToDoubleLower(flt);
-      final float lowf = (float) lowd;
-      assertTrue("Expected value to become larger, but " + uppd + " < " + dbl, uppd >= dbl || Double.isNaN(dbl));
-      assertTrue("Expected value to round to the same float.", flt == uppf || Double.isNaN(flt));
-      assertTrue("Expected value to become smaller, but " + lowd + " > " + dbl, lowd <= dbl || Double.isNaN(dbl));
-      assertTrue("Expected value to round to the same float.", flt == lowf || Double.isNaN(flt));
-    }
-  }
-}