diff --git a/common-rust/src/types.rs b/common-rust/src/types.rs
index 180ae6e..41077a3 100644
--- a/common-rust/src/types.rs
+++ b/common-rust/src/types.rs
@@ -96,8 +96,12 @@ impl<'a> QVariant<'a> {
         self.type_ as u32
     }
     pub fn convert(&self) -> Variant {
-        // TODO
-        Variant::None
+        match (self.type_) {
+            10 => {
+                Variant::String(String::new())
+            }
+            _ => Variant::None
+        }
     }
 }
 
diff --git a/tests/CMakeLists.txt b/tests/CMakeLists.txt
index 019584e..48230dd 100644
--- a/tests/CMakeLists.txt
+++ b/tests/CMakeLists.txt
@@ -16,8 +16,6 @@ function(rust_test NAME DIRECTORY)
         MAIN_DEPENDENCY "${NAME}.json"
         DEPENDS "${GENERATOR}"
     )
-#    add_custom_target("${DIRECTORY}"
-#        DEPENDS "${DIR}/src/inferface.rs")
 
     add_custom_command(
         OUTPUT "${DIR}/${RUST_TARGET_DIR}/librust.a"
@@ -39,7 +37,8 @@ function(rust_test NAME DIRECTORY)
         "${DIR}/${RUST_TARGET_DIR}/librust.a"
     )
     set_property(TARGET ${NAME}
-        APPEND PROPERTY AUTOGEN_TARGET_DEPENDS "${SRC}/${NAME}_rust.h")
+        APPEND PROPERTY AUTOGEN_TARGET_DEPENDS "${SRC}/${NAME}_rust.h"
+        APPEND PROPERTY AUTOGEN_TARGET_DEPENDS "${SRC}/${NAME}_rust.cpp")
 
     add_test("build_${NAME}"
             "${CMAKE_COMMAND}" --build ${CMAKE_BINARY_DIR} --target "${NAME}")
diff --git a/tests/rust_object_types/src/types.rs b/tests/rust_object_types/src/types.rs
index 180ae6e..b8ca403 100644
--- a/tests/rust_object_types/src/types.rs
+++ b/tests/rust_object_types/src/types.rs
@@ -96,8 +96,16 @@ impl<'a> QVariant<'a> {
         self.type_ as u32
     }
     pub fn convert(&self) -> Variant {
-        // TODO
-        Variant::None
+        match self.type_ {
+            10 => {
+                let data = unsafe {
+                    let d = self.data as *const uint16_t;
+                    slice::from_raw_parts(d, self.len as usize)
+                };
+                Variant::String(String::from_utf16_lossy(data))
+            }
+            _ => Variant::None
+        }
     }
 }
 
diff --git a/tests/test_object_types.cpp b/tests/test_object_types.cpp
index 5791b9c..6361284 100644
--- a/tests/test_object_types.cpp
+++ b/tests/test_object_types.cpp
@@ -1,6 +1,7 @@
-#include "test_object_rust.h"
+#include "test_object_types_rust.h"
 #include <QTest>
 #include <QSignalSpy>
+#include <QDebug>
 
 class TestRustObject : public QObject
 {
@@ -26,15 +27,17 @@ void TestRustObject::testStringSetter()
 {
     // GIVEN
     Person person;
+    const QVariant userName(QString("Konqi"));
     QSignalSpy spy(&person, &Person::userNameChanged);
 
     // WHEN
-    person.setUserName("Konqi");
+    person.setUserName(userName);
 
     // THEN
     QVERIFY(spy.isValid());
     QCOMPARE(spy.count(), 1);
-    QCOMPARE(person.userName(), QString("Konqi"));
+    QCOMPARE(person.userName().type(), userName.type());
+    QCOMPARE(person.userName(), userName);
 }
 
 QTEST_MAIN(TestRustObject)
diff --git a/tests/test_object_types.json b/tests/test_object_types.json
index 7948a0e..7db52a9 100644
--- a/tests/test_object_types.json
+++ b/tests/test_object_types.json
@@ -10,7 +10,7 @@
         "type": "Object",
         "properties": [{
             "name": "userName",
-            "type": "QString",
+            "type": "QVariant",
             "write": true
         }]
     }]
diff --git a/tests/test_object_types_rust.cpp b/tests/test_object_types_rust.cpp
index 5b238c1..11f5ffe 100644
--- a/tests/test_object_types_rust.cpp
+++ b/tests/test_object_types_rust.cpp
@@ -110,8 +110,8 @@ void set_qvariant(QVariant* v, qvariant_t* val) {
 extern "C" {
     PersonInterface* person_new(Person*, void (*)(Person*));
     void person_free(PersonInterface*);
-    void person_user_name_get(PersonInterface*, QString*, qstring_set);
-    void person_user_name_set(void*, qstring_t);
+    void person_user_name_get(PersonInterface*, QVariant*, qvariant_set);
+    void person_user_name_set(void*, qvariant_t);
 };
 Person::Person(QObject *parent):
     QObject(parent),
@@ -121,12 +121,12 @@ Person::Person(QObject *parent):
 Person::~Person() {
     person_free(d);
 }
-QString Person::userName() const
+QVariant Person::userName() const
 {
-    QString v;
-    person_user_name_get(d, &v, set_qstring);
+    QVariant v;
+    person_user_name_get(d, &v, set_qvariant);
     return v;
 }
-void Person::setUserName(const QString& v) {
-    person_user_name_set(d, v);
+void Person::setUserName(const QVariant& v) {
+    variant(v, d, person_user_name_set);
 }
diff --git a/tests/test_object_types_rust.h b/tests/test_object_types_rust.h
index ff3448b..1eb64da 100644
--- a/tests/test_object_types_rust.h
+++ b/tests/test_object_types_rust.h
@@ -11,15 +11,15 @@ class Person : public QObject
 {
     Q_OBJECT
     PersonInterface * const d;
-    Q_PROPERTY(QString userName READ userName WRITE setUserName NOTIFY userNameChanged FINAL)
+    Q_PROPERTY(QVariant userName READ userName WRITE setUserName NOTIFY userNameChanged FINAL)
 public:
     explicit Person(QObject *parent = nullptr);
     ~Person();
-    QString userName() const;
-    void setUserName(const QString& v);
+    QVariant userName() const;
+    void setUserName(const QVariant& v);
 signals:
     void userNameChanged();
 private:
-    QString m_userName;
+    QVariant m_userName;
 };
 #endif // TEST_OBJECT_TYPES_RUST_H