rename tests directory

2021-08-17 12:24:31 +10:00
parent 202ec18f84
commit bbe6bf36f3
77 changed files with 1 additions and 1 deletions
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+// Copyright 2015 Conrad Sanderson (http://conradsanderson.id.au)
+// Copyright 2015 National ICT Australia (NICTA)
+// 
+// Licensed 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.
+// ------------------------------------------------------------------------
+
+
+#include <armadillo>
+#include "catch.hpp"
+
+using namespace arma;
+
+
+TEST_CASE("decomp_eig_sym_1")
+  {
+  mat A = 
+    "\
+     0.061198   0.201990   0.019678  -0.493936  -0.126745;\
+     0.437242   0.058956  -0.149362  -0.045465   0.296153;\
+    -0.492474  -0.031309   0.314156   0.419733   0.068317;\
+     0.336352   0.411541   0.458476  -0.393139  -0.135040;\
+     0.239585  -0.428913  -0.406953  -0.291020  -0.353768;\
+    ";
+  
+  A = A*A.t();
+  
+  vec eigvals1 =
+    {
+    0.0044188,
+    0.0697266,
+    0.3364172,
+    0.8192910,
+    1.1872184
+    };
+  
+  vec eigvals2 = eig_sym(A);
+  
+  vec eigvals3;
+  bool status = eig_sym(eigvals3, A);
+  
+  vec eigvals4;
+  mat eigvecs4;
+  eig_sym(eigvals4, eigvecs4, A);
+  
+  mat B = eigvecs4 * diagmat(eigvals4) * eigvecs4.t();
+  
+  REQUIRE( status == true );
+  REQUIRE( accu(abs(eigvals2 - eigvals1)) == Approx(0.0) );
+  REQUIRE( accu(abs(eigvals3 - eigvals1)) == Approx(0.0) );
+  REQUIRE( accu(abs(eigvals4 - eigvals1)) == Approx(0.0) );
+  REQUIRE( accu(abs(A        - B       )) == Approx(0.0) );
+  }
+
+
+
+TEST_CASE("eig_sym_2")
+  {
+  cx_mat A = 
+    { 
+    { cx_double( 0.111205, +0.074101), cx_double(-0.225872, -0.068474), cx_double(-0.192660, +0.236887), cx_double( 0.355204, -0.355735) },
+    { cx_double( 0.119869, +0.217667), cx_double(-0.412722, +0.366157), cx_double( 0.069916, -0.222238), cx_double( 0.234987, -0.072355) },
+    { cx_double( 0.003791, +0.183253), cx_double(-0.212887, -0.172758), cx_double( 0.168689, -0.393418), cx_double( 0.008795, -0.289654) },
+    { cx_double(-0.331639, -0.166660), cx_double( 0.436969, -0.313498), cx_double(-0.431574, +0.017421), cx_double(-0.104165, +0.145246) }
+    };
+  
+  A = A*A.t();
+  
+  vec eigvals1 =
+    {
+    0.030904,
+    0.253778,
+    0.432459,
+    1.204726
+    };
+  
+  vec eigvals2 = eig_sym(A);
+  
+  vec eigvals3;
+  bool status = eig_sym(eigvals3, A);
+  
+     vec eigvals4;
+  cx_mat eigvecs4;
+  eig_sym(eigvals4, eigvecs4, A);
+  
+  cx_mat B = eigvecs4 * diagmat(eigvals4) * eigvecs4.t();
+   
+  REQUIRE( status == true );
+  REQUIRE( accu(abs(eigvals2 - eigvals1)) == Approx(0.0) );
+  REQUIRE( accu(abs(eigvals3 - eigvals1)) == Approx(0.0) );
+  REQUIRE( accu(abs(eigvals4 - eigvals1)) == Approx(0.0) );
+  REQUIRE( accu(abs(A        - B       )) == Approx(0.0) );
+  }
+
+
+
+TEST_CASE("eig_sym_3")
+  {
+  mat A(5,6,fill::randu);
+  
+  vec eigvals;
+  mat eigvecs;
+  
+  REQUIRE_THROWS( eig_sym(eigvals, eigvecs, A) );
+  }