68 lines
1.7 KiB
C++
68 lines
1.7 KiB
C++
// Copyright 2015 Conrad Sanderson (http://conradsanderson.id.au)
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// Copyright 2015 National ICT Australia (NICTA)
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// ------------------------------------------------------------------------
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#include <armadillo>
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#include "catch.hpp"
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using namespace arma;
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TEST_CASE("fn_as_scalar_1")
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{
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mat A(1,1); A.fill(2.0);
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mat B(2,2); B.fill(2.0);
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REQUIRE( as_scalar(A) == Approx(2.0) );
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REQUIRE( as_scalar(2+A) == Approx(4.0) );
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REQUIRE( as_scalar(B(span(0,0), span(0,0))) == Approx(2.0) );
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REQUIRE_THROWS( as_scalar(B) );
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}
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TEST_CASE("fn_as_scalar_2")
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{
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rowvec r = linspace<rowvec>(1,5,6);
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colvec q = linspace<colvec>(1,5,6);
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mat X = 0.5*toeplitz(q);
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REQUIRE( as_scalar(r*q) == Approx(65.2) );
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REQUIRE( as_scalar(r*X*q) == Approx(380.848) );
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REQUIRE( as_scalar(r*diagmat(X)*q) == Approx(32.6) );
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REQUIRE( as_scalar(r*inv(diagmat(X))*q) == Approx(130.4) );
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}
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TEST_CASE("fn_as_scalar_3")
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{
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cube A(1,1,1); A.fill(2.0);
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cube B(2,2,2); B.fill(2.0);
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REQUIRE( as_scalar(A) == Approx(2.0) );
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REQUIRE( as_scalar(2+A) == Approx(4.0) );
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REQUIRE( as_scalar(B(span(0,0), span(0,0), span(0,0))) == Approx(2.0) );
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REQUIRE_THROWS( as_scalar(B) );
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}
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