[mlpack-svn] r14547 - mlpack/trunk/src/mlpack/tests

[fastlab-svn at coffeetalk-1.cc.gatech.edu]

Author: rcurtin
Date: 2013-03-13 16:44:40 -0400 (Wed, 13 Mar 2013)
New Revision: 14547

Modified:
   mlpack/trunk/src/mlpack/tests/tree_test.cpp
Log:
Test Diameter().


Modified: mlpack/trunk/src/mlpack/tests/tree_test.cpp
===================================================================
--- mlpack/trunk/src/mlpack/tests/tree_test.cpp	2013-03-13 20:44:31 UTC (rev 14546)
+++ mlpack/trunk/src/mlpack/tests/tree_test.cpp	2013-03-13 20:44:40 UTC (rev 14547)
@@ -939,6 +939,34 @@
 }
 
 /**
+ * Ensure that HRectBound::Diameter() works properly.
+ */
+BOOST_AUTO_TEST_CASE(HRectBoundDiameter)
+{
+  HRectBound<3> b(4);
+  b[0] = math::Range(0.0, 1.0);
+  b[1] = math::Range(-1.0, 0.0);
+  b[2] = math::Range(2.0, 3.0);
+  b[3] = math::Range(7.0, 7.0);
+
+  BOOST_REQUIRE_CLOSE(b.Diameter(), std::pow(3.0, 1.0 / 3.0), 1e-5);
+
+  HRectBound<2, false> c(4);
+  c[0] = math::Range(0.0, 1.0);
+  c[1] = math::Range(-1.0, 0.0);
+  c[2] = math::Range(2.0, 3.0);
+  c[3] = math::Range(0.0, 0.0);
+
+  BOOST_REQUIRE_CLOSE(c.Diameter(), 3.0, 1e-5);
+
+  HRectBound<5> d(2);
+  d[0] = math::Range(2.2, 2.2);
+  d[1] = math::Range(1.0, 1.0);
+
+  BOOST_REQUIRE_SMALL(d.Diameter(), 1e-5);
+}
+
+/**
  * Ensure that a bound, by default, is empty and has no dimensionality, and the
  * box size vector is empty.
  */