fix: parse includes

Author: Ark4ne

src/Support/Includes.php

@@ -78,7 +78,7 @@ public static function includes(Request $request): array
      */
     public static function parse(string $include): array
     {
-        return self::cache("parse:$include", static fn() => Arr::undot(
+        return self::cache("parse:$include", static fn() => empty($include) ? [] : Arr::undot(
             array_fill_keys(explode(',', $include), []))
         );
     }
@@ -91,7 +91,7 @@ public static function parse(string $include): array
     private static function currentStack(Request $request): array
     {
         return Arr::get(
-            self::parse($request->input('include', '')),
+            self::parse($request->input('include') ?? ''),
             implode('.', self::$stack) ?: null,
             []
         );

tests/Unit/Support/IncludesTest.php

@@ -75,6 +75,8 @@ public function assert($expected, $actual, $message = '')
 
     public function testParse()
     {
+        $this->assertEquals([], Includes::parse(''));
+
         $parsed = Includes::parse(implode(',', [
             'user',
             'posts',
@@ -98,6 +100,25 @@ public function testParse()
         ], $parsed);
     }
 
+    public function testGet()
+    {
+        $request = new Request();
+
+        $this->assertEquals([], Includes::get($request));
+
+        $request = new Request(['include' => null]);
+
+        $this->assertEquals([], Includes::get($request));
+
+        $request = new Request(['include' => '']);
+
+        $this->assertEquals([], Includes::get($request));
+
+        $request = new Request(['include' => 'foo.bar,baz']);
+
+        $this->assertEquals(['foo', 'baz'], Includes::get($request));
+    }
+
     public function testIncludes()
     {
         $request = new Request([