Ichthyostega
ada5cefaaf
the buildsystem will now pick up and link all test cases according to the layer, e.g. backend tests will automatically be linked against the backend + library solely.
293 lines
9 KiB
C++
293 lines
9 KiB
C++
/*
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EntryID(Test) - proof-of-concept test for a combined hash+symbolic ID
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Copyright (C) Lumiera.org
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2010, 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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#include "lib/test/run.hpp"
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#include "lib/test/test-helper.hpp"
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#include "proc/asset/entry-id.hpp"
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#include "proc/mobject/session/clip.hpp"
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#include "proc/mobject/session/track.hpp"
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#include "lib/meta/trait-special.hpp"
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#include "lib/util-foreach.hpp"
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#include "lib/symbol.hpp"
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#include <tr1/unordered_map>
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#include <iostream>
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#include <string>
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using lib::test::showSizeof;
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using lib::test::randStr;
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using util::isSameObject;
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using util::contains;
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using util::and_all;
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using lib::Literal;
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using std::string;
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using std::cout;
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using std::endl;
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namespace proc {
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namespace asset{
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namespace test {
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using lumiera::error::LUMIERA_ERROR_WRONG_TYPE;
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namespace { // Test definitions...
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struct Dummy { };
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typedef EntryID<Dummy> DummyID;
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typedef EntryID<mobject::session::Track> TrackID;
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typedef EntryID<mobject::session::Clip> ClipID;
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}
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/***************************************************************************
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* @test proof-of-concept test for a combined symbolic and hash based ID.
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* - create some symbolic IDs
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* - check default assignment works properly
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* - check comparisons
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* - check hashing
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* - use the embedded hash ID (LUID) as hashtable key
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*
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* @see lib::HashIndexed::Id
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* @see mobject::Placement real world usage example
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*/
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class EntryID_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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checkCreation();
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checkBasicProperties();
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checkComparisions();
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checkErasure();
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buildHashtable();
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}
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void
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checkCreation ()
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{
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DummyID dID1;
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DummyID dID2("strange");
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DummyID dID3;
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CHECK (dID1.isValid());
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CHECK (dID2.isValid());
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CHECK (dID3.isValid());
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CHECK (dID1 != dID2); CHECK (dID2 != dID1);
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CHECK (dID2 != dID3); CHECK (dID3 != dID2);
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CHECK (dID1 != dID3); CHECK (dID3 != dID1);
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TrackID tID1;
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TrackID tID2;
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TrackID tID3("special");
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CHECK (tID1.isValid());
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CHECK (tID2.isValid());
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CHECK (tID3.isValid());
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CHECK (tID1 != tID2); CHECK (tID2 != tID1);
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CHECK (tID2 != tID3); CHECK (tID3 != tID2);
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CHECK (tID1 != tID3); CHECK (tID3 != tID1);
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cout << dID1 << endl;
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cout << dID2 << endl;
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cout << dID3 << endl;
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cout << tID1 << endl;
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cout << tID2 << endl;
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cout << tID3 << endl;
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DummyID x (dID2); // copy ctor
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CHECK (x == dID2);
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CHECK (!isSameObject (x, dID2));
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}
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void
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checkBasicProperties ()
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{
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TrackID tID(" test ⚡ ☠ ☭ ⚡ track ");
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CHECK (tID.getIdent() == Asset::Ident("test_track", Category(STRUCT,"tracks"), "lumi", 0));
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CHECK (tID.getHash() == TrackID("☢ test ☢ track ☢").getHash());
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CHECK (tID.getSym() == tID.getIdent().name);
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CHECK (TrackID().getIdent().category == Category (STRUCT,"tracks"));
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CHECK (ClipID().getIdent().category == Category (STRUCT,"clips"));
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ClipID cID2,cID3;
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CHECK (cID2.getSym() < cID3.getSym());
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CHECK (ClipID("x").getSym() == ClipID(" x ").getSym());
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for (uint i=0; i<10000; ++i)
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{
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TrackID arbitrary(randStr(30));
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CHECK (0 < arbitrary.getHash());
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CHECK (tID.getHash() != arbitrary.getHash());
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tID = arbitrary;
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CHECK (tID.getHash() == arbitrary.getHash());
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CHECK (tID.getSym() == arbitrary.getSym());
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CHECK (tID.getIdent()== arbitrary.getIdent());
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}
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cout << showSizeof<TrackID>() << endl;
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cout << showSizeof<BareEntryID>() << endl;
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CHECK (sizeof(TrackID) == sizeof(BareEntryID));
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CHECK (sizeof(TrackID) == sizeof(lumiera_uid) + sizeof(void*));
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}
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void
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checkComparisions ()
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{
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TrackID tID1("a1");
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TrackID tID2("a1");
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TrackID tID3("a2");
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TrackID tID4("b");
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CHECK (tID1 == tID2);
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CHECK (tID2 < tID3);
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CHECK (tID2 <= tID3);
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CHECK (tID3 >= tID2);
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CHECK (tID3 > tID2);
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CHECK (tID3 < tID4);
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CHECK (tID3 <= tID4);
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CHECK (tID4 >= tID3);
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CHECK (tID4 > tID3);
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TrackID trackID1, trackID2;
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CHECK (trackID1 < trackID2); // auto generated IDs are prefix + running counter
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}
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/** @test handling of EntryIDs through their common base class,
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* which means erasing the specific type information.
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* While this type information can't be recovered
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* after erasure, we can try to upcast back
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* to a known type; this upcast is safe,
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* because the embedded hash-ID
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* is based on the type info.
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*/
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void
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checkErasure ()
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{
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TrackID tID("suspicious");
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ClipID cID("suspicious");
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CHECK (tID.getHash() != cID.getHash());
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CHECK (tID.getSym() == cID.getSym());
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BareEntryID bIDt (tID);
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BareEntryID bIDc (cID);
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CHECK (bIDt != bIDc);
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CHECK (bIDt.getHash() != bIDc.getHash());
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CHECK (bIDt.getSym() == bIDc.getSym());
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CHECK ("suspicious" == bIDc.getSym());
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using mobject::session::Track;
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using mobject::session::Clip;
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TrackID tIDnew = bIDt.recast<Track>();
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ClipID cIDnew = bIDc.recast<Clip>();
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CHECK (tIDnew == tID);
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CHECK (cIDnew == cID);
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VERIFY_ERROR (WRONG_TYPE, bIDt.recast<Clip>());
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VERIFY_ERROR (WRONG_TYPE, bIDc.recast<Track>());
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VERIFY_ERROR (WRONG_TYPE, bIDc.recast<Dummy>());
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VERIFY_ERROR (WRONG_TYPE, bIDt.recast<Dummy>());
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CHECK (tID == TrackID::recast (bIDt)); // equivalent static API on typed subclass
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VERIFY_ERROR (WRONG_TYPE, TrackID::recast(bIDc));
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VERIFY_ERROR (WRONG_TYPE, ClipID::recast(bIDt));
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VERIFY_ERROR (WRONG_TYPE, DummyID::recast(bIDc));
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VERIFY_ERROR (WRONG_TYPE, DummyID::recast(bIDt));
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// mixed equality comparisons (based on the hash)
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BareEntryID bIDt_copy (bIDt);
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CHECK (bIDt == bIDt_copy);
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CHECK (!isSameObject (bIDt, bIDt_copy));
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CHECK (tID != bIDc);
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CHECK (cID != bIDt_copy);
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CHECK (tID == bIDt_copy);
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CHECK (bIDt == TrackID ("suspicious"));
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CHECK (bIDt != ClipID ("suspicious"));
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CHECK (bIDc == ClipID ("suspicious"));
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CHECK (TrackID ("suspicious") != ClipID ("suspicious"));
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}
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//---key--+-value-+-hash-function---
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typedef std::tr1::unordered_map<DummyID, string, DummyID::UseEmbeddedHash> Hashtable;
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/** @test build a hashtable, using EntryID as key,
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* thereby using the embedded hash-ID */
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void
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buildHashtable ()
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{
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Hashtable tab;
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for (uint i=0; i<10000; ++i) //////////////////TICKET #865 hash collisions for 100000 entries
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{
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DummyID dummy;
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tab[dummy] = string(dummy);
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}
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CHECK (and_all (tab, verifyEntry));
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CHECK (10000 == tab.size());
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}
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static bool
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verifyEntry (Hashtable::value_type entry)
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{
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return checkForHashCollision(string(entry.first), entry.second);
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}
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static bool
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checkForHashCollision(string const& key, string const& val)
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{
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if (key != val) cout << "Hash collision: "<<key<<" != "<<val<< endl;
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return key == val;
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}
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};
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/** Register this test class... */
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LAUNCHER (EntryID_test, "unit asset");
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}}} // namespace proc::asset::test
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