Command line tests

Preconditions:
- HomeScreen app is running

[Test] Popup Interface
[Command Line] dbus-send --session --type=method_call --dest=org.agl.homescreen /Popup org.agl.popup.showPopup int32:1 string:"TEST"
[Expected Behavior] A popup is shown with the text "TEST" and an "OK" button
---------------------------------------------------------------------------------------------------------------------
[Test] Status Bar Interface
[Command Line] dbus-send --session --type=method_call --print-reply --dest=org.agl.homescreen /StatusBar org.agl.statusbar.getAvailablePlaceholders
[Expected Behavior] The list of available placeholders is returned:
   array [
      int32 1
      int32 2
      int32 3
      int32 4
      int32 5
   ]

[Command Line] dbus-send --session --type=method_call --print-reply --dest=org.agl.homescreen /StatusBar org.agl.statusbar.setStatusIcon int32:1 string:"/home/...PUT_YOUR_TEST_PNG_HERE....png"
The value range for the int32 is 1 to 5.
[Expected Behavior] The picture is shown in the status bar in the placeholder 1 (to 5)

[Command Line] dbus-send --session --type=method_call --print-reply --dest=org.agl.homescreen /StatusBar org.agl.statusbar.getStatusIcon int32:1 
The value range for the int32 is 1 to 5.
[Expected Behavior] The picture URI of placeholder 1 (to 5)

[Command Line] dbus-send --session --type=method_call --print-reply --dest=org.agl.homescreen /StatusBar org.agl.statusbar.setStatusText int32:1 string:"hello"
The value range for the int32 is 1 to 5.
[Expected Behavior] The text "hello" is shown in the status bar in the placeholder 1 (to 5)

[Command Line] dbus-send --session --type=method_call --print-reply --dest=org.agl.homescreen /StatusBar org.agl.statusbar.getStatusText int32:1 
The value range for the int32 is 1 to 5.
[Expected Behavior] The text of placeholder 1 (to 5)