Fix WebfingerResponse tests

Author: JuancaG05

owncloudComLibrary/src/test/java/com/owncloud/android/lib/resources/webfinger/responses/WebFingerResponseTest.kt

@@ -22,20 +22,20 @@ class WebFingerResponseTest {
     @Test
     fun `check rel in too much information - ok`() {
         val response = loadResponses(TOO_MUCH_INFORMATION_JSON)!!
-        Assert.assertEquals("https://gast.somedomain.de", response.links[0].href)
-        Assert.assertEquals("http://webfinger.owncloud/rel/server-instance", response.links[0].rel)
+        Assert.assertEquals("https://gast.somedomain.de", response.links!![0].href)
+        Assert.assertEquals("http://webfinger.owncloud/rel/server-instance", response.links!![0].rel)
     }
 
     @Test(expected = JsonDataException::class)
     fun `check key value pairs - ko - no href key`() {
         val response = loadResponses(BROKEN_JSON)!!
-        Assert.assertEquals("https://gast.somedomain.de", response.links[0].href)
+        Assert.assertEquals("https://gast.somedomain.de", response.links!![0].href)
     }
 
     @Test(expected = JsonDataException::class)
     fun `check key value pairs - ko - no rel key`() {
         val response = loadResponses(BROKEN_JSON)!!
-        Assert.assertEquals("https://gast.somedomain.de", response.links[0].href)
+        Assert.assertEquals("https://gast.somedomain.de", response.links!![0].href)
     }
 
     companion object {