170 lines
4.3 KiB
C++
170 lines
4.3 KiB
C++
/*
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WLink(Test) - verify managed link to sigc::trackable widget
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Copyright (C) Lumiera.org
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2018, 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 w-link-test.cpp
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** unit test \ref WLink_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 "gui/model/w-link.hpp"
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//#include "gen-node-location-query.hpp"
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#include "lib/format-cout.hpp"
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//#include "lib/idi/entry-id.hpp"
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//#include "lib/diff/gen-node.hpp"
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#include "lib/util.hpp"
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//#include <string>
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#include <memory>
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//using std::string;
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//using lib::diff::MakeRec;
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//using lib::diff::Rec;
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//using lib::idi::EntryID;
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//using lib::diff::GenNode;
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using std::make_unique;
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using util::isSameObject;
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//using util::isnil;
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namespace gui {
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namespace model{
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namespace test {
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// using lumiera::error::LUMIERA_ERROR_WRONG_TYPE;
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// using lib::test::showSizeof;
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namespace { // Test fixture...
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template<typename X>
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struct DummyWidget
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: public sigc::trackable
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{
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X val = 1 + rand() % 100;
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};
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}
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/******************************************************************************//**
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* @test verify the usage pattern of low-level UI element access, based on a
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* mock implementation of the accessor directory.
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* @see w-link.hpp
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*/
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class WLink_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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verify_standardUsage();
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verify_reconnect();
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verify_copy();
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}
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/** @test the standard use case is to hold onto a widget
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* owned by _someone else_, with automatic disconnection
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*/
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void
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verify_standardUsage()
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{
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using Wint = DummyWidget<int>;
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auto widget = make_unique<Wint>();
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int r = widget->val;
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WLink<Wint> link{*widget};
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CHECK (link);
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link->val += 23;
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CHECK (r+23 == widget->val);
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// kill widget
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widget.reset();
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CHECK (not link);
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VERIFY_ERROR (BOTTOM_VALUE, link->val );
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}
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void
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verify_reconnect()
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{
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using Wint = DummyWidget<int>;
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auto w1 = make_unique<Wint>();
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auto w2 = make_unique<Wint>();
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int r1 = w1->val;
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int r2 = w2->val;
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WLink<Wint> l1;
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WLink<Wint> l2{*w1};
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CHECK (not l1);
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CHECK ( l2);
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l2->val = r1;
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l1.connect(*l2);
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++l1->val;
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CHECK (w1->val == r1+1);
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CHECK (isSameObject (*l1, *l2));
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l2.connect(*w2);
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CHECK (not isSameObject (*l1, *l2));
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w2->val = r2;
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CHECK (r1+1 == l1->val);
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CHECK (r2 == l2->val);
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w1.reset(); // kill first widget
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CHECK (not l1);
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CHECK ( l2);
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l2->val *= -10;
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l2.clear();
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CHECK (not l1);
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CHECK (not l2);
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CHECK (-10*r2 == w2->val);
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l1.connect(*w2);
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l2.connect(*l1);
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CHECK (-10*r2 == l2->val);
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CHECK (isSameObject (*l1, *l2));
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CHECK (isSameObject (*l1, *w2));
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// implicitly kill second widget
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*w2 = Wint{};
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CHECK (not l1);
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CHECK (not l2);
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}
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void
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verify_copy()
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{
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UNIMPLEMENTED ("copy with magic");
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}
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};
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/** Register this test class... */
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LAUNCHER (WLink_test, "unit gui");
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}}} // namespace gui::model::test
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