diff --git a/tests/MoneyTest.php b/tests/MoneyTest.php
index 346517f..45a935d 100644
--- a/tests/MoneyTest.php
+++ b/tests/MoneyTest.php
@@ -61,7 +61,7 @@ public function providerOf() : array
             ['CUSTOM 0.428', BigRational::of('3/7'), new Currency('CUSTOM', 0, '', 3), null, RoundingMode::DOWN],
             ['CUSTOM 0.4286', BigRational::of('3/7'), new Currency('CUSTOM', 0, '', 3), new CustomContext(4, 1), RoundingMode::UP],
             [RoundingNecessaryException::class, '1.2', 'JPY'],
-            [NumberFormatException::class, '1.', 'JPY'],
+            [NumberFormatException::class, '1..', 'JPY'],
         ];
     }
 
@@ -95,7 +95,7 @@ public function providerOfMinor() : array
             ['JPY 600', 600, 'JPY'],
             ['USD 1.2350', '123.5', 'USD', new CustomContext(4)],
             [RoundingNecessaryException::class, '123.5', 'USD'],
-            [NumberFormatException::class, '123.', 'USD'],
+            [NumberFormatException::class, '123..', 'USD'],
         ];
     }