diff --git a/debian/changelog b/debian/changelog
index 5629005..f878c62 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,5 +1,6 @@
 applauncherd (0.30.1) unstable; urgency=low
 
+  * Changes: New functional tests added to check testability library is loaded by booster-m and booster-d
   * Changes: Deprecate MDeclarativeCache::applicationDirPath() and MDeclarativeCache::applicationFilePath().
   * Changes: Modify test applications to use _exit().
 
diff --git a/tests/harmattan/functests/tests.xml b/tests/harmattan/functests/tests.xml
index 07d4af6..6656a62 100644
--- a/tests/harmattan/functests/tests.xml
+++ b/tests/harmattan/functests/tests.xml
@@ -146,6 +146,22 @@
         <step expected_result="0">source /tmp/session_bus_address.user; DISPLAY=:0 /usr/share/applauncherd-testscripts/tc_theming.rb name test_theme_change_booster_restart</step>
       </case-->
 
+      <case name="applauncherd__test_qttas_load_booster_d" type="Functional" description="To test invoker that qttestability plugin is loaded with -testability argument for booster-d" timeout="360" level="System" insignificant="false">
+          <step expected_result="0">source /tmp/session_bus_address.user; DISPLAY=:0 `pyversions -d` /usr/share/applauncherd-testscripts/test-func-launcher.py test_qttas_load_booster_d</step>
+      </case>
+
+      <case name="applauncherd__test_qttas_load_env_booster_d" type="Functional" description="To test invoker that qttestability plugin is loaded with QT_LOAD_TESTABILITY env variable for booster-d" timeout="360" level="System" insignificant="false">
+          <step expected_result="0">source /tmp/session_bus_address.user; DISPLAY=:0 `pyversions -d` /usr/share/applauncherd-testscripts/test-func-launcher.py test_qttas_load_env_booster_d</step>
+      </case>
+
+      <case name="applauncherd__test_qttas_load_booster_m" type="Functional" description="To test invoker that qttestability plugin is loaded with -testability argument for booster-m" timeout="360" level="System" insignificant="false">
+          <step expected_result="0">source /tmp/session_bus_address.user; DISPLAY=:0 `pyversions -d` /usr/share/applauncherd-testscripts/test-func-launcher.py test_qttas_load_booster_m</step>
+      </case>
+
+      <case name="applauncherd__test_qttas_load_env_booster_m" type="Functional" description="To test invoker that qttestability plugin is loaded with QT_LOAD_TESTABILITY env variable for booster-m" timeout="360" level="System" insignificant="false">
+          <step expected_result="0">source /tmp/session_bus_address.user; DISPLAY=:0 `pyversions -d` /usr/share/applauncherd-testscripts/test-func-launcher.py test_qttas_load_env_booster_m</step>
+      </case>
+
       <post_steps>
           <step>source /tmp/session_bus_address.user; DISPLAY=:0  `pyversions -d` /usr/share/applauncherd-testscripts/test-func-launcher.py start_daemons</step>
       </post_steps>
diff --git a/tests/harmattan/testscripts/test-func-launcher.py b/tests/harmattan/testscripts/test-func-launcher.py
index fe1861c..13ae6bd 100644
--- a/tests/harmattan/testscripts/test-func-launcher.py
+++ b/tests/harmattan/testscripts/test-func-launcher.py
@@ -963,6 +963,130 @@ class launcher_tests (unittest.TestCase):
         debug("The value of output is %s" %op)
         self.assert_(st != 0, "applauncherd has writable and executable memory")
 
+    def test_qttas_load_booster_d(self):
+        """
+        To test invoker that qttestability plugin is loaded with -testability argument for booster-d
+        """
+        for i in range(2):
+                debug("Running cycle %s" %i)
+                testapp = PREFERED_APP_QML
+                p = run_app_as_user_with_invoker("%s -testability" %testapp, booster = 'd')
+                time.sleep(2)
+
+                pid = get_pid(testapp)
+                self.assert_(pid != None, "Can't start application %s" %testapp)
+
+                st_tas, op_tas = commands.getstatusoutput("grep -c libtestability.so /proc/%s/maps" %pid)
+                debug("The value of status is %d" %st_tas)
+                debug("The value of output is %s" %op_tas)
+
+                st_tas_plug, op_tas_plug = commands.getstatusoutput("grep -c libqttestability.so /proc/%s/maps" %pid)
+                debug("The value of status is %d" %st_tas_plug)
+                debug("The value of output is %s" %op_tas_plug)
+
+                kill_process(apppid=pid)
+
+                self.assert_(st_tas == 0,"libtestability.so not loaded")
+                self.assert_(st_tas_plug == 0,"libqttestability.so not loaded")
+
+                time.sleep(2)
+
+    def test_qttas_load_booster_m(self):
+        """
+        To test invoker that qttestability plugin is loaded with -testability argument for booster-m
+        """
+        for i in range(2):
+                debug("Running cycle %s" %i)
+                testapp = PREFERED_APP
+                p = run_app_as_user_with_invoker("%s -testability" %testapp, booster = 'm')
+                time.sleep(2)
+
+                pid = get_pid(testapp)
+                self.assert_(pid != None, "Can't start application %s" %testapp)
+
+                st_tas, op_tas = commands.getstatusoutput("grep -c libtestability.so /proc/%s/maps" %pid)
+                debug("The value of status is %d" %st_tas)
+                debug("The value of output is %s" %op_tas)
+
+                st_tas_plug, op_tas_plug = commands.getstatusoutput("grep -c libqttestability.so /proc/%s/maps" %pid)
+                debug("The value of status is %d" %st_tas_plug)
+                debug("The value of output is %s" %op_tas_plug)
+
+                kill_process(apppid=pid)
+
+                self.assert_(st_tas == 0,"libtestability.so not loaded")
+                self.assert_(st_tas_plug == 0,"libqttestability.so not loaded")
+
+                time.sleep(2)
+
+    def test_qttas_load_env_booster_d(self):
+        """
+        To test invoker that qttestability plugin is loaded with QT_LOAD_TESTABILITY env variable for booster-d
+        """
+        for i in range(2):
+                debug("Running cycle %s" %i)
+                testapp = PREFERED_APP_QML
+                cmd = ['su', '-', 'user', '-c'] 
+                invoke="export QT_LOAD_TESTABILITY=1; /usr/bin/invoker --type=d %s" %testapp
+                cmd.append(invoke)
+
+                p = subprocess.Popen(cmd, shell = False, stdout = DEV_NULL, stderr = DEV_NULL)
+
+                time.sleep(2)
+
+                pid = get_pid(testapp)
+                self.assert_(pid != None, "Can't start application %s" %testapp)
+
+                st_tas, op_tas = commands.getstatusoutput("grep -c libtestability.so /proc/%s/maps" %pid)
+                debug("The value of status is %d" %st_tas)
+                debug("The value of output is %s" %op_tas)
+
+                st_tas_plug, op_tas_plug = commands.getstatusoutput("grep -c libqttestability.so /proc/%s/maps" %pid)
+                debug("The value of status is %d" %st_tas_plug)
+                debug("The value of output is %s" %op_tas_plug)
+
+                kill_process(apppid=pid)
+
+                self.assert_(st_tas == 0,"libtestability.so not loaded")
+                self.assert_(st_tas_plug == 0,"libqttestability.so not loaded")
+
+                time.sleep(2)
+
+
+    def test_qttas_load_env_booster_m(self):
+        """
+        To test invoker that qttestability plugin is loaded with QT_LOAD_TESTABILITY env variable for booster-m
+        """
+        for i in range(2):
+                debug("Running cycle %s" %i)
+                testapp = PREFERED_APP
+                cmd = ['su', '-', 'user', '-c']
+                invoke="export QT_LOAD_TESTABILITY=1; /usr/bin/invoker --type=m %s" %testapp
+                cmd.append(invoke)                                               
+                
+                p = subprocess.Popen(cmd, shell = False, stdout = DEV_NULL, stderr = DEV_NULL)
+
+                time.sleep(2)
+
+                pid = get_pid(testapp)
+                self.assert_(pid != None, "Can't start application %s" %testapp)
+
+                st_tas, op_tas = commands.getstatusoutput("grep -c libtestability.so /proc/%s/maps" %pid)
+                debug("The value of status is %d" %st_tas)
+                debug("The value of output is %s" %op_tas)
+
+                st_tas_plug, op_tas_plug = commands.getstatusoutput("grep -c libqttestability.so /proc/%s/maps" %pid)
+                debug("The value of status is %d" %st_tas_plug)
+                debug("The value of output is %s" %op_tas_plug)
+
+                kill_process(apppid=pid)
+
+                self.assert_(st_tas == 0,"libtestability.so not loaded")
+                self.assert_(st_tas_plug == 0,"libqttestability.so not loaded")
+
+                time.sleep(2)
+
+
 # main
 if __name__ == '__main__':
     # When run with testrunner, for some reason the PATH doesn't include