Expand tests, do code cleanup.

app/Http/Controllers/Report/AccountController.php

@@ -39,6 +39,7 @@ class AccountController extends Controller
      * @param Carbon     $end
      *
      * @return mixed|string
+     * @throws \Throwable
      */
     public function general(Collection $accounts, Carbon $start, Carbon $end)
     {

app/Http/Controllers/Report/BalanceController.php

@@ -40,6 +40,7 @@ class BalanceController extends Controller
      * @param Carbon                       $end
      *
      * @return mixed|string
+     * @throws \Throwable
      */
     public function general(BalanceReportHelperInterface $helper, Collection $accounts, Carbon $start, Carbon $end)
     {

app/Http/Controllers/Report/BudgetController.php

@@ -41,6 +41,7 @@ class BudgetController extends Controller
      * @param Carbon                      $end
      *
      * @return mixed|string
+     * @throws \Throwable
      */
     public function general(BudgetReportHelperInterface $helper, Collection $accounts, Carbon $start, Carbon $end)
     {
@@ -68,6 +69,7 @@ class BudgetController extends Controller
      * @param Carbon     $end
      *
      * @return mixed|string
+     * @throws \Throwable
      */
     public function period(Collection $accounts, Carbon $start, Carbon $end)
     {

app/Http/Controllers/Report/CategoryController.php

@@ -40,6 +40,7 @@ class CategoryController extends Controller
      * @param Carbon     $end
      *
      * @return mixed|string
+     * @throws \Throwable
      */
     public function expenses(Collection $accounts, Carbon $start, Carbon $end)
     {
@@ -71,6 +72,7 @@ class CategoryController extends Controller
      * @param Collection $accounts
      *
      * @return string
+     * @throws \Throwable
      */
     public function income(Collection $accounts, Carbon $start, Carbon $end)
     {
@@ -104,6 +106,7 @@ class CategoryController extends Controller
      * @return mixed|string
      *
      * @internal param ReportHelperInterface $helper
+     * @throws \Throwable
      */
     public function operations(Collection $accounts, Carbon $start, Carbon $end)
     {

app/Http/Controllers/Report/ExpenseController.php

@@ -211,6 +211,15 @@ class ExpenseController extends Controller
 
     }
 
+    /**
+     * @param Collection $accounts
+     * @param Collection $expense
+     * @param Carbon     $start
+     * @param Carbon     $end
+     *
+     * @return string
+     * @throws \Throwable
+     */
     public function topExpense(Collection $accounts, Collection $expense, Carbon $start, Carbon $end)
     {
         // Properties for cache:
@@ -246,6 +255,15 @@ class ExpenseController extends Controller
     }
 
 
+    /**
+     * @param Collection $accounts
+     * @param Collection $expense
+     * @param Carbon     $start
+     * @param Carbon     $end
+     *
+     * @return mixed|string
+     * @throws \Throwable
+     */
     public function topIncome(Collection $accounts, Collection $expense, Carbon $start, Carbon $end)
     {
         // Properties for cache:
@@ -366,6 +384,14 @@ class ExpenseController extends Controller
         return $sum;
     }
 
+    /**
+     * @param Collection $assets
+     * @param Collection $opposing
+     * @param Carbon     $start
+     * @param Carbon     $end
+     *
+     * @return array
+     */
     protected function earnedInPeriod(Collection $assets, Collection $opposing, Carbon $start, Carbon $end): array
     {
         /** @var JournalCollectorInterface $collector */

app/Http/Controllers/Report/OperationsController.php

@@ -40,6 +40,7 @@ class OperationsController extends Controller
      * @param Carbon                 $end
      *
      * @return mixed|string
+     * @throws \Throwable
      */
     public function expenses(AccountTaskerInterface $tasker, Collection $accounts, Carbon $start, Carbon $end)
     {
@@ -67,6 +68,7 @@ class OperationsController extends Controller
      * @param Carbon                 $end
      *
      * @return string
+     * @throws \Throwable
      */
     public function income(AccountTaskerInterface $tasker, Collection $accounts, Carbon $start, Carbon $end)
     {
@@ -95,6 +97,7 @@ class OperationsController extends Controller
      * @param Carbon                 $end
      *
      * @return mixed|string
+     * @throws \Throwable
      */
     public function operations(AccountTaskerInterface $tasker, Collection $accounts, Carbon $start, Carbon $end)
     {