rename tests directory

tests2/init_fill.cpp

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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("init_fill_1")
+  {
+  mat Z( 5,  6, fill::zeros);
+  mat O( 5,  6, fill::ones);
+  mat I( 5,  6, fill::eye);
+  mat U(50, 60, fill::randu);
+  mat N(50, 60, fill::randn);
+  
+  
+  REQUIRE( accu(Z != 0) == 0   );
+  REQUIRE( accu(O != 0) == 5*6 );
+  REQUIRE( accu(I != 0) == 5   );
+  
+  REQUIRE(   mean(vectorise(U)) == Approx(0.500).epsilon(0.05) );
+  REQUIRE( stddev(vectorise(U)) == Approx(0.288).epsilon(0.05) );
+  
+  REQUIRE(   mean(vectorise(N)) == Approx(0.0).epsilon(0.05) );
+  REQUIRE( stddev(vectorise(N)) == Approx(1.0).epsilon(0.05) );
+  
+  mat X(5, 6, fill::none);   // only to test instantiation
+  }
+
+
+
+TEST_CASE("init_fill_2")
+  {
+  cube Z( 5,  6, 2, fill::zeros);
+  cube O( 5,  6, 2, fill::ones);
+  cube U(50, 60, 2, fill::randu);
+  cube N(50, 60, 2, fill::randn);
+  
+  REQUIRE( accu(Z != 0) == 0     );
+  REQUIRE( accu(O != 0) == 5*6*2 );
+  
+  REQUIRE(   mean(vectorise(U)) == Approx(0.500).epsilon(0.05) );
+  REQUIRE( stddev(vectorise(U)) == Approx(0.288).epsilon(0.05) );
+  
+  REQUIRE(   mean(vectorise(N)) == Approx(0.0).epsilon(0.05) );
+  REQUIRE( stddev(vectorise(N)) == Approx(1.0).epsilon(0.05) );
+  
+  cube X(5, 6, 2, fill::none);   // only to test instantiation
+  
+  cube I;  REQUIRE_THROWS( I = cube(5, 6, 2, fill::eye) );
+  }