diff --git a/src/colnod/databaseapi.cpp b/src/colnod/databaseapi.cpp
index ded9621..7c4b695 100644
--- a/src/colnod/databaseapi.cpp
+++ b/src/colnod/databaseapi.cpp
@@ -12,13 +12,9 @@ DatabaseAPI::DatabaseAPI(serversdk::DatabaseManager *dbMan, bool dryMode)
     mDbMan->setDryMode(dryMode);
 }
 
-bool DatabaseAPI::open()
+bool DatabaseAPI::open(QString host, QString name, QString user, QString password)
 {
-    return mDbMan->openPostgres(QStringLiteral("192.168.1.94"),
-                                QStringLiteral("deloitte"),
-                                QStringLiteral("postgres"),
-                                QStringLiteral("34rjkciea12"),
-                                QStringLiteral("postgres-connection"));
+    return mDbMan->openPostgres(host, name, user, password);
 }
 
 bool DatabaseAPI::executeQuery(QSqlQuery &query, const QString &statement)
diff --git a/src/colnod/databaseapi.h b/src/colnod/databaseapi.h
index ef71c1e..34b125d 100644
--- a/src/colnod/databaseapi.h
+++ b/src/colnod/databaseapi.h
@@ -20,7 +20,10 @@ class DatabaseAPI : public QObject
 public:
     explicit DatabaseAPI(serversdk::DatabaseManager *dbMan, bool dryMode);
 
-    bool open();
+    bool open(QString host = "192.168.1.94",
+              QString name = "deloitte",
+              QString user = "postgres",
+              QString password = "34rjkciea12");
 
     bool executeQuery(QSqlQuery &query, const QString &statement = QString());
 
@@ -58,8 +61,9 @@ signals:
     void error();
 
 private:
-    bool mDryMode;
     bool mValid = true;
+
+    bool mDryMode;
     serversdk::DatabaseManager *mDbMan = nullptr;
     std::unique_ptr<serversdk::DatabaseUtils> utils;
 };
diff --git a/src/colnod/syncmanager.cpp b/src/colnod/syncmanager.cpp
index 801bb0a..9cf9cb3 100644
--- a/src/colnod/syncmanager.cpp
+++ b/src/colnod/syncmanager.cpp
@@ -62,14 +62,20 @@ bool SyncManager::startSynchronization()
     // NOW I HAVE DATA FROM DATABASE
 
 
-
     colnod->downloadData(Timestamp(syncBegin));
     connect(colnod.get(), &ColnodAPI::downloadDataFinished, [=](std::shared_ptr<Data> data) {
-        // NOW I HAVE DATA FROM COLNOD
+        if (!data) {
+            qCritical(syncmanager) << "Not possible to get correct data from colnod";
+            return;
+        }
 
+
+
+        // NOW I HAVE DATA FROM COLNOD
         // I can process data
         qDebug(syncmanager) << "I have colnod and database data";
         qDebug(syncmanager) << "updated token count" << data->updatedTokens.count();
+
     });
 
     return true;
diff --git a/test/auto/auto.pro b/test/auto/auto.pro
index 01b66a1..3fa2a6d 100644
--- a/test/auto/auto.pro
+++ b/test/auto/auto.pro
@@ -3,3 +3,4 @@ TEMPLATE = subdirs
 SUBDIRS += \
     database/tst_databaseapi.pro \
     colnod/tst_colnodapi.pro \
+    syncmanager/tst_syncmanager.pro \
diff --git a/test/auto/database/tst_databaseapi.cpp b/test/auto/database/tst_databaseapi.cpp
index 82878f8..43632ef 100644
--- a/test/auto/database/tst_databaseapi.cpp
+++ b/test/auto/database/tst_databaseapi.cpp
@@ -8,13 +8,19 @@ class DatabaseTest : public QObject
     Q_OBJECT
 private slots:
     void open_database_test();
-
+    void open_database_ip_fail_test();
+    void open_database_name_fail_test();
+    void open_database_user_fail_test();
+    void open_database_password_fail_test();
+    void download_data_test();
+    void download_data_fail_test();
 };
 
 void DatabaseTest::open_database_test()
 {
     serversdk::DatabaseManager dbManager;
     DatabaseAPI db(&dbManager, false);
+    QVERIFY(db.open());
 
     // TODO: fix -> databaseAPI must be able to add credentials to check for wrong one or test wrong IP
     //db.open(user, password, url, etc );
@@ -23,6 +29,54 @@ void DatabaseTest::open_database_test()
     // QVERIFY(!db.open(worng ip));
 }
 
+void DatabaseTest::open_database_ip_fail_test()
+{
+    serversdk::DatabaseManager dbManager;
+    DatabaseAPI db(&dbManager, false);
+    QVERIFY(!db.open("1.1.1.1"));
+}
+
+void DatabaseTest::open_database_name_fail_test()
+{
+    serversdk::DatabaseManager dbManager;
+    DatabaseAPI db(&dbManager, false);
+    QVERIFY(!db.open("192.168.1.94", "wrong name"));
+}
+
+void DatabaseTest::open_database_user_fail_test()
+{
+    serversdk::DatabaseManager dbManager;
+    DatabaseAPI db(&dbManager, false);
+    QVERIFY(!db.open("192.168.1.94", "delliote", "wrong user"));
+}
+
+void DatabaseTest::open_database_password_fail_test()
+{
+    serversdk::DatabaseManager dbManager;
+    DatabaseAPI db(&dbManager, false);
+    QVERIFY(!db.open("192.168.1.94", "delliote", "postgres", "wrong password"));
+}
+
+
+void DatabaseTest::download_data_test()
+{
+    serversdk::DatabaseManager dbManager;
+    DatabaseAPI db(&dbManager, false);
+    db.open();
+    QVERIFY(db.downloadData());
+}
+
+void DatabaseTest::download_data_fail_test()
+{
+    serversdk::DatabaseManager dbManager;
+    DatabaseAPI db(&dbManager, false);
+
+    // fail open so download data should return nullptr
+    db.open("1.1.1.1");
+    QVERIFY(!db.downloadData());
+}
+
+
 QTEST_APPLESS_MAIN(DatabaseTest)
 
 #include "tst_databaseapi.moc"
diff --git a/test/auto/syncmanager/tst_syncmanager.cpp b/test/auto/syncmanager/tst_syncmanager.cpp
new file mode 100644
index 0000000..ad97eff
--- /dev/null
+++ b/test/auto/syncmanager/tst_syncmanager.cpp
@@ -0,0 +1,23 @@
+#include <QtTest>
+
+#include "syncmanager.h"
+// add necessary includes here
+
+class SyncManagerTest : public QObject
+{
+    Q_OBJECT
+private slots:
+    void sync_init_test();
+
+};
+
+void SyncManagerTest::sync_init_test()
+{
+    SyncManager sync(true);
+
+    QVERIFY(sync.databaseInitialization());
+}
+
+QTEST_MAIN(SyncManagerTest)
+
+#include "tst_syncmanager.moc"
diff --git a/test/auto/syncmanager/tst_syncmanager.pro b/test/auto/syncmanager/tst_syncmanager.pro
new file mode 100644
index 0000000..aadc383
--- /dev/null
+++ b/test/auto/syncmanager/tst_syncmanager.pro
@@ -0,0 +1,11 @@
+QT += testlib
+QT -= gui
+
+CONFIG += qt console warn_on depend_includepath testcase
+CONFIG -= app_bundle
+
+TEMPLATE = app
+
+SOURCES +=  tst_syncmanager.cpp
+
+include(../../test.pri)