diff options
Diffstat (limited to 'test/de/lmu/ifi/dbs/elki/math/scales/TestLinearScale.java')
-rw-r--r-- | test/de/lmu/ifi/dbs/elki/math/scales/TestLinearScale.java | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/test/de/lmu/ifi/dbs/elki/math/scales/TestLinearScale.java b/test/de/lmu/ifi/dbs/elki/math/scales/TestLinearScale.java new file mode 100644 index 00000000..f593902c --- /dev/null +++ b/test/de/lmu/ifi/dbs/elki/math/scales/TestLinearScale.java @@ -0,0 +1,64 @@ +package de.lmu.ifi.dbs.elki.math.scales; + +/* + 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 org.junit.Test; + +import de.lmu.ifi.dbs.elki.JUnit4Test; +import de.lmu.ifi.dbs.elki.math.scales.LinearScale; + +/** + * Test class to test rounding of the linear scale. + * + * @author Erich Schubert + * + */ +public class TestLinearScale implements JUnit4Test { + + /** + * Produces a simple linear scale and verifies the tick lines are placed as + * expected. + */ + @Test + public final void testLinearScale() { + LinearScale a = new LinearScale(3, 97); + assertEquals("Minimum for scale 3-97 not as expected.", 0.0, a.getMin(), Double.MIN_VALUE); + assertEquals("Maximum for scale 3-97 not as expected.", 100.0, a.getMax(), Double.MIN_VALUE); + + LinearScale b = new LinearScale(-97, -3); + assertEquals("Minimum for scale -97 : -3 not as expected.", -100.0, b.getMin(), Double.MIN_VALUE); + assertEquals("Maximum for scale -97 : -3 not as expected.", 0.0, b.getMax(), Double.MIN_VALUE); + + LinearScale c = new LinearScale(-3, 37); + assertEquals("Minimum for scale -3 : 37 not as expected.", -10.0, c.getMin(), Double.MIN_VALUE); + assertEquals("Maximum for scale -3 : 37 not as expected.", 40.0, c.getMax(), Double.MIN_VALUE); + + LinearScale d = new LinearScale(-37, 3); + assertEquals("Minimum for scale -37 : 3 not as expected.", -40.0, d.getMin(), Double.MIN_VALUE); + assertEquals("Maximum for scale -37 : 3 not as expected.", 10.0, d.getMax(), Double.MIN_VALUE); + } + +} |