add fixture with same-array union

Author: TomasVotruba

rules-tests/TypeDeclarationDocblocks/Rector/Class_/AddReturnDocblockDataProviderRector/Fixture/union_same_array_type.php.inc

@@ -0,0 +1,60 @@
+<?php
+
+namespace Rector\Tests\TypeDeclarationDocblocks\Rector\Class_\AddReturnDocblockDataProviderRector\Fixture;
+
+use Nette\Utils\FileSystem;
+use PHPUnit\Framework\Attributes\DataProvider;
+use PHPUnit\Framework\TestCase;
+
+final class UnionSameArrayType extends TestCase
+{
+    #[DataProvider('provideData')]
+    public function testSomething()
+    {
+    }
+
+    public static function provideData(): \Iterator
+    {
+        yield ['...', __DIR__ . '/Source/expected/expected.txt'];
+        yield ["-old\n+new", __DIR__ . '/Source/expected/expected_old_new.txt'];
+
+        yield [
+            FileSystem::read('...'),
+            __DIR__ . '/Fixture/expected_with_full_diff_by_phpunit.diff',
+        ];
+    }
+}
+
+?>
+-----
+<?php
+
+namespace Rector\Tests\TypeDeclarationDocblocks\Rector\Class_\AddReturnDocblockDataProviderRector\Fixture;
+
+use Nette\Utils\FileSystem;
+use PHPUnit\Framework\Attributes\DataProvider;
+use PHPUnit\Framework\TestCase;
+
+final class UnionSameArrayType extends TestCase
+{
+    #[DataProvider('provideData')]
+    public function testSomething()
+    {
+    }
+
+    /**
+     * @return \Iterator<array<int, string>>
+     */
+    public static function provideData(): \Iterator
+    {
+        yield ['...', __DIR__ . '/Source/expected/expected.txt'];
+        yield ["-old\n+new", __DIR__ . '/Source/expected/expected_old_new.txt'];
+
+        yield [
+            FileSystem::read('...'),
+            __DIR__ . '/Fixture/expected_with_full_diff_by_phpunit.diff',
+        ];
+    }
+}
+
+?>

tests/Console/Formatter/ColorConsoleDiffFormatterTest.php

@@ -29,7 +29,7 @@ public function test(string $content, string $expectedFormattedFileContent): voi
     }
 
     /**
-     * @return Iterator<(array<int, string>|array<int, string>)>
+     * @return Iterator<array<int, string>>
      */
     public static function provideData(): Iterator
     {