Ichthyostega
29b8b2b8bc
...which means, from now on identical input strings will produce the same Symbol object (embedded pointer). TODO: does not handle null pointers passed in as c-String properly
139 lines
3.7 KiB
C++
139 lines
3.7 KiB
C++
/*
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Symbol(Test) - verify basic properties of a Symbol datatype
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Copyright (C) Lumiera.org
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2009, Hermann Vosseler <Ichthyostega@web.de>
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2 of
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the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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* *****************************************************/
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/** @file symbol-test.cpp
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** unit test \ref Symbol_test
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*/
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#include "lib/test/run.hpp"
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#include "lib/test/test-helper.hpp"
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#include "lib/format-cout.hpp"
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#include "lib/util.hpp"
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#include "lib/symbol.hpp"
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#include <string>
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using util::typeStr;
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using util::isSameObject;
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using util::isnil;
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using std::string;
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namespace lib {
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namespace test{
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/******************************************************//**
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* @test properties of Symbol data type. Currently this is
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* just a thin wrapper for a const char *
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* @todo this test is very much WIP, as the implementation
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* of a real symbol type and symbol table remains
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* to be done. ///////////////////////////Ticket #157
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*/
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class Symbol_test : public Test
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{
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virtual void
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run (Arg)
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{
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checkLiteral();
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checkSymbolCreation();
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}
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void
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checkLiteral()
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{
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Literal li1 ("one");
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Literal li2 (li1);
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Literal li3 ("one ");
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cout << li1 << endl;
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cout << showSizeof(li1) << endl;
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CHECK (sizeof(Literal) == sizeof(char*));
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CHECK (li1 == li2);
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CHECK (!isSameObject (li1,li2));
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CHECK (li1 != li3);
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CHECK (li2 != li3);
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CHECK (li3 != li2);
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cout << typeStr (li1 + string("ce")) << endl;
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cout << typeStr (string("minus " +li1)) << endl;
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cout << li2+string("..") << string("..")+li2 << endl;
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CHECK (hash_value(li1) == hash_value(li2));
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CHECK (hash_value(li2) != hash_value(li3));
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}
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void
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checkEmptyLiteral()
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{
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Literal nn1 (0);
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Literal nn2 ("");
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CHECK (isnil (nn1));
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CHECK (isnil (nn2));
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Literal nnn (" ");
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CHECK (!isnil (nnn));
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}
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void
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checkSymbolCreation()
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{
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Literal l1("1");
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Symbol sy1("1");
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Symbol sy2(l1);
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CHECK (sy1 == sy2);
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CHECK (not isSameObject (l1,sy1));
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CHECK (not isSameObject (sy1,sy2));
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CHECK (l1.c() == sy1.c());
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CHECK (sy1.c() == sy2.c());
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Symbol sy3;
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CHECK (isnil(sy3));
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CHECK (sy1 != sy3);
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sy3 = Symbol{l1};
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CHECK (!isnil(sy3));
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CHECK (sy1 == sy3);
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Symbol sy4{sy3, "11"};
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CHECK (sy4 == "1.11");
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CHECK (not isSameObject(sy4.c(), "1.11"));
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CHECK (sy4.c() == Symbol{"1.11"}.c());
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CHECK (sy4.c() == (const char*)sy4);
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CHECK (hash_value(sy4) == hash_value(Symbol{"1.11"}));
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}
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};
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LAUNCHER (Symbol_test, "unit common");
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}} // namespace lib::test
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