Add option to limit export of (large) arrays (to speed up PHPUnit)

src/Exporter.php

@@ -38,6 +38,11 @@
 
 final readonly class Exporter
 {
+    public function __construct(
+        private int $shortenArraysLongerThan = 10
+    ) {
+    }
+
     /**
      * Exports a value as a string.
      *
@@ -69,7 +74,16 @@ public function shortenedRecursiveExport(array &$data, ?RecursionContext $proces
         /* @noinspection UnusedFunctionResultInspection */
         $processed->add($data);
 
+        $i     = 0;
+        $count = count($data, COUNT_RECURSIVE);
+
         foreach ($array as $key => $value) {
+            if ($count > $this->shortenArraysLongerThan && $i > $this->shortenArraysLongerThan) {
+                $result[] = sprintf('...%d more elements', $count - $this->shortenArraysLongerThan);
+
+                break;
+            }
+
             if (is_array($value)) {
                 if ($processed->contains($data[$key]) !== false) {
                     $result[] = '*RECURSION*';
@@ -79,6 +93,8 @@ public function shortenedRecursiveExport(array &$data, ?RecursionContext $proces
             } else {
                 $result[] = $this->shortenedExport($value);
             }
+
+            $i++;
         }
 
         return implode(', ', $result);

tests/ExporterTest.php

@@ -321,6 +321,12 @@ public static function provideNonBinaryMultibyteStrings(): array
 
     public static function shortenedRecursiveExportProvider(): array
     {
+        $bigArray = [];
+
+        for ($i = 0; $i < 20_000; $i++) {
+            $bigArray[] = 'cast(\'foo' . $i . '\' as blob)';
+        }
+
         return [
             'null'                   => [[null], 'null'],
             'boolean true'           => [[true], 'true'],
@@ -333,6 +339,7 @@ public static function shortenedRecursiveExportProvider(): array
             'with assoc array key'   => [['foo' => 'bar'], '\'bar\''],
             'multidimensional array' => [[[1, 2, 3], [3, 4, 5]], '[1, 2, 3], [3, 4, 5]'],
             'object'                 => [[new stdClass], 'stdClass Object ()'],
+            'big array'              => [$bigArray, "'cast('foo0' as blob)', 'cast('foo1' as blob)', 'cast('foo2' as blob)', 'cast('foo3' as blob)', 'cast('foo4' as blob)', 'cast('foo5' as blob)', 'cast('foo6' as blob)', 'cast('foo7' as blob)', 'cast('foo8' as blob)', 'cast('foo9' as blob)', 'cast('foo10' as blob)', ...19992 more elements"],
         ];
     }