From cdc45d29c5c5be0b791e320e3699f7c9287f26f2 Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Sun, 8 Nov 2026 04:33:09 +0000
Subject: [PATCH 1/2] Initial plan


From d8b5d4ce564fb82098e8c319b22030cd2676ffe4 Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Sun, 8 Nov 2026 04:34:41 +0000
Subject: [PATCH 2/2] Fix scalar split and average edge cases

Co-authored-by: asika32764 <1639206+asika32764@users.noreply.github.com>
---
 packages/scalars/src/ArrayObject.php       | 6 +++---
 packages/scalars/src/StringObject.php      | 5 ++++-
 packages/scalars/test/ArrayObjectTest.php  | 9 ++++++++-
 packages/scalars/test/StringObjectTest.php | 9 +++++++++
 4 files changed, 24 insertions(+), 5 deletions(-)

diff --git a/packages/scalars/src/ArrayObject.php b/packages/scalars/src/ArrayObject.php
index 573f482d7..cd33db42f 100644
--- a/packages/scalars/src/ArrayObject.php
+++ b/packages/scalars/src/ArrayObject.php
@@ -318,13 +318,13 @@ public function sum(): float|int
      */
     public function avg(): float|int|null
     {
-        $sum = $this->sum();
+        $count = $this->count();
 
-        if ($sum === 0 || $sum === 0.0) {
+        if ($count === 0) {
             return null;
         }
 
-        return $sum / $this->count();
+        return $this->sum() / $count;
     }
 
     /**
diff --git a/packages/scalars/src/StringObject.php b/packages/scalars/src/StringObject.php
index f57e5bbfb..78e20c7b1 100644
--- a/packages/scalars/src/StringObject.php
+++ b/packages/scalars/src/StringObject.php
@@ -149,6 +149,10 @@ public static function wrap(mixed $string = '', ?string $encoding = self::ENCODI
      */
     public function __call(string $name, array $args): mixed
     {
+        if ($name === 'split') {
+            return $this->explode(...$args);
+        }
+
         $class = Str::class;
 
         if (is_callable([$class, $name])) {
@@ -158,7 +162,6 @@ public function __call(string $name, array $args): mixed
         $maps = [
             'toUpperCase' => [Utf8String::class, 'strtoupper'],
             'toLowerCase' => [Utf8String::class, 'strtolower'],
-            'split' => [$this, 'explode'],
         ];
 
         if ($maps[$name] ?? null) {
diff --git a/packages/scalars/test/ArrayObjectTest.php b/packages/scalars/test/ArrayObjectTest.php
index 0bdfb55b2..40709c3df 100644
--- a/packages/scalars/test/ArrayObjectTest.php
+++ b/packages/scalars/test/ArrayObjectTest.php
@@ -691,11 +691,18 @@ public function searchWithClosureReturnsFalseWhenNothingMatches(): void
     }
 
     #[Test]
-    public function avgReturnsNullWhenSumIsZero(): void
+    public function avgReturnsNullWhenArrayIsEmpty(): void
     {
         self::assertNull(arr([])->avg());
     }
 
+    #[Test]
+    public function avgReturnsZeroWhenSumIsZero(): void
+    {
+        self::assertSame(0, arr([1, -1])->avg());
+        self::assertSame(0, arr([0, 0])->avg());
+    }
+
     #[Test]
     public function wrapReturnsSameInstanceWhenAlreadyWrapped(): void
     {
diff --git a/packages/scalars/test/StringObjectTest.php b/packages/scalars/test/StringObjectTest.php
index e2d7ae6a3..c9840e006 100644
--- a/packages/scalars/test/StringObjectTest.php
+++ b/packages/scalars/test/StringObjectTest.php
@@ -525,6 +525,15 @@ public static function explodeProvider(): array
         ];
     }
 
+    #[Test]
+    public function splitSplitsStringByDelimiter(): void
+    {
+        self::assertEquals(
+            ['Foo', 'Bar', 'Yoo'],
+            (new StringObject('Foo/Bar/Yoo'))->split('/')->dump()
+        );
+    }
+
     #[Test]
     public function applyReturnsNewInstanceFromCallbackResult()
     {