test: Moving tst_QMimeDatabase::inheritsPerformance() test

tst_QMimeDatabase::inheritsPerformance() is not an unit test but a
performance test, so moving it from 'tests/auto/corelib/mimetypes/qmimedatabase'
to 'tests/benchmarks/corelib/mimetypes/qmimedatabase'

Change-Id: I59e84f61559023659f101666683870f2ca1d2034
Reviewed-by: David Faure (KDE) <faure@kde.org>
Reviewed-by: Rohan McGovern <rohan.mcgovern@nokia.com>

2 files changed, 0 insertions, 33 deletions

diff --git a/tests/auto/corelib/mimetypes/qmimedatabase/tst_qmimedatabase.cpp b/tests/auto/corelib/mimetypes/qmimedatabase/tst_qmimedatabase.cpp
index b731eaf12a..0d41328320 100644
--- a/tests/auto/corelib/mimetypes/qmimedatabase/tst_qmimedatabase.cpp
+++ b/tests/auto/corelib/mimetypes/qmimedatabase/tst_qmimedatabase.cpp
@@ -517,38 +517,6 @@ void tst_QMimeDatabase::allMimeTypes()
     }
 }
 
-void tst_QMimeDatabase::inheritsPerformance()
-{
-    // Check performance of inherits().
-    // This benchmark (which started in 2009 in kmimetypetest.cpp) uses 40 mimetypes.
-    QStringList mimeTypes; mimeTypes << QLatin1String("image/jpeg") << QLatin1String("image/png") << QLatin1String("image/tiff") << QLatin1String("text/plain") << QLatin1String("text/html");
-    mimeTypes += mimeTypes;
-    mimeTypes += mimeTypes;
-    mimeTypes += mimeTypes;
-    QCOMPARE(mimeTypes.count(), 40);
-    QMimeDatabase db;
-    QMimeType mime = db.mimeTypeForName(QString::fromLatin1("text/x-chdr"));
-    QVERIFY(mime.isValid());
-    QBENCHMARK {
-        QString match;
-        foreach (const QString &mt, mimeTypes) {
-            if (mime.inherits(mt)) {
-                match = mt;
-                // of course there would normally be a "break" here, but we're testing worse-case
-                // performance here
-            }
-        }
-        QCOMPARE(match, QString::fromLatin1("text/plain"));
-    }
-    // Numbers from 2011, in release mode:
-    // KDE 4.7 numbers: 0.21 msec / 494,000 ticks / 568,345 instr. loads per iteration
-    // QMimeBinaryProvider (with Qt 5): 0.16 msec / NA / 416,049 instr. reads per iteration
-    // QMimeXmlProvider (with Qt 5): 0.062 msec / NA / 172,889 instr. reads per iteration
-    //   (but the startup time is way higher)
-    // And memory usage is flat at 200K with QMimeBinaryProvider, while it peaks at 6 MB when
-    // parsing XML, and then keeps being around 4.5 MB for all the in-memory hashes.
-}
-
 void tst_QMimeDatabase::suffixes_data()
 {
     QTest::addColumn<QString>("mimeType");
diff --git a/tests/auto/corelib/mimetypes/qmimedatabase/tst_qmimedatabase.h b/tests/auto/corelib/mimetypes/qmimedatabase/tst_qmimedatabase.h
index f30eb00461..ea050b5014 100644
--- a/tests/auto/corelib/mimetypes/qmimedatabase/tst_qmimedatabase.h
+++ b/tests/auto/corelib/mimetypes/qmimedatabase/tst_qmimedatabase.h
@@ -70,7 +70,6 @@ private slots:
     void mimeTypeForFileAndContent_data();
     void mimeTypeForFileAndContent();
     void allMimeTypes();
-    void inheritsPerformance();
     void suffixes_data();
     void suffixes();
     void knownSuffix();