Align behavior of toResolvingString with Context.getString (DEV) #2465

* Align behavior of toResolvingString with Context.getString

* Fix unit test mocking getString().

Co-authored-by: BMItter <46747780+BMItter@users.noreply.github.com>

Corona-Warn-App/src/main/java/de/rki/coronawarnapp/util/ui/LazyString.kt

@@ -19,5 +19,9 @@ fun String.toLazyString() = object : LazyString {
 }
 
 fun Int.toResolvingString(vararg formatArgs: Any): LazyString = object : LazyString {
-    override fun get(context: Context): String = context.getString(this@toResolvingString, *formatArgs)
+    override fun get(context: Context): String = if (formatArgs.isNotEmpty()) {
+        context.getString(this@toResolvingString, *formatArgs)
+    } else {
+        context.getString(this@toResolvingString)
+    }
 }

Corona-Warn-App/src/test/java/de/rki/coronawarnapp/datadonation/analytics/ui/input/AnalyticsUserInputViewModelTest.kt

@@ -37,7 +37,7 @@ class AnalyticsUserInputViewModelTest : BaseTest() {
     fun setup() {
         MockKAnnotations.init(this)
 
-        every { context.getString(any(), *anyVararg()) } returns ""
+        every { context.getString(any()) } returns ""
 
         every { analyticsSettings.userInfoAgeGroup } returns userInfoAgeGroup
         every { analyticsSettings.userInfoFederalState } returns userInfoFederalState