Optimize findLast

This just gave a 700% boost to query performance from ~2k
to 14k reads per second...

1 files changed, 30 insertions, 0 deletions

diff --git a/tests/storagetest.cpp b/tests/storagetest.cpp
index bef8755..d950961 100644
--- a/tests/storagetest.cpp
+++ b/tests/storagetest.cpp
@@ -376,6 +376,7 @@ private Q_SLOTS:
         db.write("sub1","value1");
         db.write("sub2","value2");
         db.write("wub3","value3");
+        db.write("wub4","value4");
         QByteArray result;
         db.findLatest("sub", [&](const QByteArray &key, const QByteArray &value) {
             result = value;
@@ -384,6 +385,35 @@ private Q_SLOTS:
         QCOMPARE(result, QByteArray("value2"));
     }
 
+    void testFindLatestInSingle()
+    {
+        Akonadi2::Storage store(testDataPath, dbName, Akonadi2::Storage::ReadWrite);
+        auto transaction = store.createTransaction(Akonadi2::Storage::ReadWrite);
+        auto db = transaction.openDatabase("test", nullptr, false);
+        db.write("sub2","value2");
+        QByteArray result;
+        db.findLatest("sub", [&](const QByteArray &key, const QByteArray &value) {
+            result = value;
+        });
+
+        QCOMPARE(result, QByteArray("value2"));
+    }
+
+    void testFindLast()
+    {
+        Akonadi2::Storage store(testDataPath, dbName, Akonadi2::Storage::ReadWrite);
+        auto transaction = store.createTransaction(Akonadi2::Storage::ReadWrite);
+        auto db = transaction.openDatabase("test", nullptr, false);
+        db.write("sub2","value2");
+        db.write("wub3","value3");
+        QByteArray result;
+        db.findLatest("wub", [&](const QByteArray &key, const QByteArray &value) {
+            result = value;
+        });
+
+        QCOMPARE(result, QByteArray("value3"));
+    }
+
     void testRecordRevision()
     {
         Akonadi2::Storage store(testDataPath, dbName, Akonadi2::Storage::ReadWrite);