TestAutoVec.cpp

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/* This file is part of Cloudy and is copyright (C)1978-2022 by Gary J. Ferland and
 * others.  For conditions of distribution and use see copyright notice in license.txt */
#include "cdstd.h"
#include <UnitTest++.h>
#include "cddefines.h"

namespace {

        struct LongIntFixture
        {
                auto_vec<long> p;
                LongIntFixture()
                {
                        p = auto_vec<long>( new long[10] );
                        for( int i=0; i < 10; ++i )
                                p[i] = i;
                }
                ~LongIntFixture() {}
                auto_vec<long> myfunc()
                {
                        auto_vec<long> a( new long[10] );
                        for( int i=0; i < 10; ++i )
                                a[i] = 2*i;
                        return a;
                }
        };

        struct MyClassFixture
        {
                struct Class
                {
                        long n;
                        Class() { n = 23; }
                        ~Class() {}
                };
                auto_vec<Class> p;
                MyClassFixture()
                {
                        p = auto_vec<Class>( new Class[10] );
                }
                ~MyClassFixture() {}
                auto_vec<Class> myfunc()
                {
                        auto_vec<Class> a( new Class[10] );
                        for( int i=0; i < 10; ++i )
                                a[i].n = i+17;
                        return a;
                }
                auto_vec<Class> myfunc2()
                {
                        return auto_vec<Class>();
                }
        };

        TEST_FIXTURE(LongIntFixture,TestConstructBasic)
        {
                // test the basic constructor
                auto_vec<long> q;
                CHECK( q.get() == NULL );
                q = auto_vec<long>( new long[5] );

                // note that q is not used below and valgrind
                // should check whether the memory in q is freed

                // this tests assigning an auto_vec to another
                auto_vec<long> r( p );
                CHECK( p.get() == NULL );
                CHECK( r.data() != NULL );
                // alternative way of doing the same
                auto_vec<long> t;
                t = r;
                CHECK( r.get() == NULL );
                CHECK( t.data() != NULL );
                // finally, returning a vector as function result!
                t = myfunc();
                // this checks operator[]
                for( int i=0; i < 10; ++i )
                        CHECK_EQUAL(2*i,t[i]);
                // construct straight from function result
                auto_vec<long> c( myfunc() );
                for( int i=0; i < 10; ++i )
                        CHECK_EQUAL(2*i,c[i]);
        }

        // now repeat the tests with a class that has a constructor
        TEST_FIXTURE(MyClassFixture,TestConstructClass)
        {
                auto_vec<Class> q;
                CHECK( q.get() == NULL );
                q = auto_vec<Class>( new Class[5] );
                // check whether the constructor was executed
                for( int i=0; i < 5; ++i )
                        CHECK_EQUAL(23,q[i].n);
                auto_vec<Class> r( p );
                CHECK( p.get() == NULL );
                CHECK( r.data() != NULL );
                auto_vec<Class> t;
                t = q;
                CHECK( q.get() == NULL );
                CHECK( t.data() != NULL );
                t = myfunc();
                for( int i=0; i < 10; ++i )
                        CHECK_EQUAL(i+17,t[i].n);
                auto_vec<Class> a,b,c;
                a = b = c = t;
                CHECK( b.get() == NULL );
                CHECK( c.get() == NULL );
                CHECK( t.get() == NULL );
                for( int i=0; i < 10; ++i )
                        CHECK_EQUAL(i+17,a[i].n);
                a.reset();
                CHECK( a.get() == NULL );
                a = myfunc2();
                CHECK( a.get() == NULL );
                a = auto_vec<Class>();
                CHECK( a.get() == NULL );
        }

}