Import Debian changes 0.5.0~beta2-1

elki (0.5.0~beta2-1) unstable; urgency=low

  * New upstream beta release.
  * Needs GNU Trove 3, in NEW.
  * Build with OpenJDK7, as OpenJDK6 complains.

elki (0.5.0~beta1-1) unstable; urgency=low

  * New upstream beta release.
  * Needs GNU Trove 3, not yet in Debian (private package)
  * Build with OpenJDK7, as OpenJDK6 complains.

1 files changed, 75 insertions, 0 deletions

diff --git a/test/de/lmu/ifi/dbs/elki/math/histograms/TestReplacingHistogram.java b/test/de/lmu/ifi/dbs/elki/math/histograms/TestReplacingHistogram.java
new file mode 100644
index 00000000..455a880a
--- /dev/null
+++ b/test/de/lmu/ifi/dbs/elki/math/histograms/TestReplacingHistogram.java
@@ -0,0 +1,75 @@
+package de.lmu.ifi.dbs.elki.math.histograms;
+
+/*
+ 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.assertArrayEquals;
+import static org.junit.Assert.assertEquals;
+
+import org.junit.Test;
+
+import de.lmu.ifi.dbs.elki.JUnit4Test;
+import de.lmu.ifi.dbs.elki.utilities.pairs.DoubleObjPair;
+
+/**
+ * JUnit test to test the {@link ReplacingHistogram} class.
+ * 
+ * @author Erich Schubert
+ */
+public class TestReplacingHistogram implements JUnit4Test {
+  ReplacingHistogram<Double> hist;
+
+  /**
+   * Test that adds some data to the histogram and compares results.
+   */
+  @Test
+  public final void testHistogram() {
+    Double[] initial = { 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0 };
+    Double[] filled = { 0.0, 1.23, 4.56, 7.89, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0 };
+    Double[] changed = { 0.0, 1.35, 8.01, 14.67, 9.01, 2.34, 0.0, 0.0, 0.0, 0.0 };
+    Double[] resized = { -1.23, 0.0, 0.0, 1.35, 8.01, 14.67, 9.01, 2.34, 0.0, 0.0, 0.0, 0.0, 0.0, -4.56 };
+    hist = ReplacingHistogram.DoubleHistogram(10, 0.0, 1.0);
+    assertArrayEquals("Empty histogram doesn't match", initial, hist.getData().toArray(new Double[0]));
+    hist.replace(0.15, 1.23);
+    hist.replace(0.25, 4.56);
+    hist.replace(0.35, 7.89);
+    assertArrayEquals("Filled histogram doesn't match", filled, hist.getData().toArray(new Double[0]));
+    hist.replace(0.15, 0.12 + hist.get(0.15));
+    hist.replace(0.25, 3.45 + hist.get(0.25));
+    hist.replace(0.35, 6.78 + hist.get(0.35));
+    hist.replace(0.45, 9.01 + hist.get(0.45));
+    hist.replace(0.50, 2.34 + hist.get(0.50));
+    assertArrayEquals("Changed histogram doesn't match", changed, hist.getData().toArray(new Double[0]));
+    hist.replace(-.13, -1.23 + hist.get(-.13));
+    hist.replace(1.13, -4.56 + hist.get(1.13));
+    assertArrayEquals("Resized histogram doesn't match", resized, hist.getData().toArray(new Double[0]));
+
+    // compare results via Iterator.
+    int off = 0;
+    for(DoubleObjPair<Double> pair : hist) {
+      assertEquals("Array iterator bin position", -0.15 + 0.1 * off, pair.first, 0.00001);
+      assertEquals("Array iterator bin contents", resized[off], pair.getSecond(), 0.00001);
+      off++;
+    }
+  }
+}