// SPDX-License-Identifier: Apache-2.0
// 
// 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"
#include "utils.hpp"

using namespace arma;


TEST_CASE("fn_is_finite_1", "[is_finite]")
  {
  mat A = 
    "\
     0.061198   0.201990   0.019678  -0.493936  -0.126745   0.051408;\
     0.437242   0.058956  -0.149362  -0.045465   0.296153   0.035437;\
    -0.492474  -0.031309   0.314156   0.419733   0.068317  -0.454499;\
     0.336352   0.411541   0.458476  -0.393139  -0.135040   0.373833;\
     0.239585  -0.428913  -0.406953  -0.291020  -0.353768   0.258704;\
    ";
  
  mat B = A;  B(1,1) = datum::inf;
  
  mat C = A;  C(2,4) = datum::nan;
  
  REQUIRE( (A).is_finite() == true  );
  REQUIRE( (B).is_finite() == false );
  REQUIRE( (C).is_finite() == false );
  
  REQUIRE( (A+A).is_finite() == true  );
  REQUIRE( (B+B).is_finite() == false );
  REQUIRE( (C+C).is_finite() == false );
  
  REQUIRE( (2*A).is_finite() == true  );
  REQUIRE( (2*B).is_finite() == false );
  REQUIRE( (2*C).is_finite() == false );
  
  // REQUIRE_THROWS(  );
  }



TEMPLATE_TEST_CASE("fn_is_finite_fp", "[is_finite]", TEST_FLOAT_TYPES)
  {
  typedef TestType eT;

  Col<eT> X1(5, fill::randu);
  Col<eT> X2(5, fill::randu);
  Col<eT> X3(5, fill::randu);
  Col<eT> X4(5, fill::randu);

  X1(2) =  Datum<eT>::nan;
  X1(3) =  Datum<eT>::inf;
  X1(4) = -Datum<eT>::inf;
  X2(3) =  Datum<eT>::inf;
  X2(4) = -Datum<eT>::inf;
  X3(4) =  Datum<eT>::nan;

  REQUIRE( X1.is_finite() == false );
  REQUIRE( X2.is_finite() == false );
  REQUIRE( X3.is_finite() == false );
  REQUIRE( X4.is_finite() == true );
  }