fix tests

Signed-off-by: tobiasKaminsky <tobias@kaminsky.me>

app/src/androidTest/java/com/owncloud/android/ui/fragment/UnifiedSearchFragmentIT.kt

@@ -39,7 +39,7 @@ class UnifiedSearchFragmentIT : AbstractIT() {
     @Test
     fun showSearchResult() {
         val activity = testActivityRule.launchActivity(null)
-        val sut = UnifiedSearchFragment.newInstance(null)
+        val sut = UnifiedSearchFragment.newInstance(null, null)
 
         activity.addFragment(sut)
 
@@ -72,7 +72,7 @@ class UnifiedSearchFragmentIT : AbstractIT() {
     @Test
     fun search() {
         val activity = testActivityRule.launchActivity(null) as TestActivity
-        val sut = UnifiedSearchFragment.newInstance(null)
+        val sut = UnifiedSearchFragment.newInstance(null, null)
         val testViewModel = UnifiedSearchViewModel(activity.application)
         testViewModel.setConnectivityService(activity.connectivityServiceMock)
         val localRepository = UnifiedSearchFakeRepository()

app/src/main/java/com/owncloud/android/ui/fragment/UnifiedSearchFragment.kt

@@ -76,7 +76,7 @@ class UnifiedSearchFragment : Fragment(), Injectable, UnifiedSearchListInterface
         const val ARG_QUERY = "ARG_QUERY"
         const val ARG_HIDDEN_FILES = "ARG_HIDDEN_FILES"
 
-        fun newInstance(query: String?, listOfHiddenFiles: ArrayList<String>): UnifiedSearchFragment {
+        fun newInstance(query: String?, listOfHiddenFiles: ArrayList<String>?): UnifiedSearchFragment {
             val fragment = UnifiedSearchFragment()
             val args = Bundle()
             args.putString(ARG_QUERY, query)