Method testImportCache

kdevplatform/language/duchain/tests/test_duchain.cpp:993–1028

FIXME: this needs to be rewritten in order to remove dependencies on formerly run unit tests

///FIXME: this needs to be rewritten in order to remove dependencies on formerly run unit tests
void TestDUChain::testImportCache()
{
    KDevelop::globalItemRepositoryRegistry().printAllStatistics();

    KDevelop::RecursiveImportRepository::repository()->printStatistics();

    //Analyze the whole existing import-cache
    //This is very expensive, since it involves loading all existing top-contexts
    uint topContextCount = DUChain::self()->newTopContextIndex();

    uint analyzedCount = 0;
    uint totalImportCount = 0;
    uint naiveNodeCount = 0;
    QSet<uint> reachableNodes;

    DUChainReadLocker lock(DUChain::lock());
    for (uint a = 0; a < topContextCount; ++a) {
        if (a % qMax(1u, topContextCount / 100) == 0) {
            qDebug() << "progress:" << (a * 100) / topContextCount;
        }
        TopDUContext* context = DUChain::self()->chainForIndex(a);
        if (context) {
            TopDUContext::IndexedRecursiveImports imports = context->recursiveImportIndices();
            ++analyzedCount;
            totalImportCount += imports.set().count();
            collectReachableNodes(reachableNodes, imports.setIndex());
            naiveNodeCount += collectNaiveNodeCount(imports.setIndex());
        }
    }

    QVERIFY(analyzedCount);
    qDebug() << "average total count of imports:" << totalImportCount / analyzedCount;
    qDebug() << "count of reachable nodes:" << reachableNodes.size();
    qDebug() << "naive node-count:" << naiveNodeCount << "sharing compression factor:" <<
    (( float )reachableNodes.size()) / (( float )naiveNodeCount);
}

#endif