Remove assertions for out of bounds Tuple array access

Author: gapple

src/TupleTrait.php

@@ -44,11 +44,10 @@ public function offsetExists($offset): bool
      */
     public function offsetGet($offset): mixed
     {
-        assert($offset === 0 || $offset === 1);
-
         return match ($offset) {
             0 => $this->value,
             1 => $this->parameters,
+            default => null,
         };
     }
 
@@ -58,8 +57,6 @@ public function offsetGet($offset): mixed
      */
     public function offsetSet($offset, $value): void
     {
-        assert($offset === 0 || $offset === 1);
-
         if ($offset === 0) {
             $this->value = $value;
         } elseif ($offset === 1) {
@@ -75,8 +72,6 @@ public function offsetSet($offset, $value): void
      */
     public function offsetUnset($offset): void
     {
-        assert($offset === 0 || $offset === 1);
-
         if ($offset === 0) {
             $this->value = null;
         } elseif ($offset === 1) {

tests/ItemTest.php

@@ -54,13 +54,7 @@ public function testArrayIndexIsset(): void
     public function testArrayOutOfBounds(): void
     {
         $item = new Item(true);
-        try {
-            $this->assertEmpty($item[2]); // @phpstan-ignore-line
-        } catch (\AssertionError) { // @phpstan-ignore-line
-            $this->addToAssertionCount(1);
-            return;
-        }
-        $this->fail();
+        $this->assertEmpty($item[2]); // @phpstan-ignore-line
     }
 
     public function testArrayUnset(): void