diff --git a/.gitignore b/.gitignore
index aa8f2978..5f934624 100644
--- a/.gitignore
+++ b/.gitignore
@@ -26,13 +26,9 @@ composer.phar
 phpunit.phar
 # local phpunit config
 /phpunit.xml
-# phpunit cache
-.phpunit.result.cache
-.phpunit.cache
 
 # Phan
 analysis.txt
 
 # PHP CS Fixer
-/.php-cs-fixer.cache
 /.php-cs-fixer.php
diff --git a/.php-cs-fixer.dist.php b/.php-cs-fixer.dist.php
index 362e2cf1..7742c26b 100644
--- a/.php-cs-fixer.dist.php
+++ b/.php-cs-fixer.dist.php
@@ -14,6 +14,7 @@
 ]);
 
 return (new Config())
+    ->setCacheFile(__DIR__ . '/runtime/.php-cs-fixer.cache')
     ->setRiskyAllowed(true)
     ->setParallelConfig(ParallelConfigFactory::detect())
     ->setRules([
diff --git a/composer.json b/composer.json
index a3adff51..5a551b96 100644
--- a/composer.json
+++ b/composer.json
@@ -61,6 +61,7 @@
         "psr-4": {
             "Yiisoft\\Db\\Migration\\Tests\\": "tests",
             "Yiisoft\\Db\\Migration\\Tests\\NonExistsDirectory\\": "tests/non-exists-directory",
+            "Yiisoft\\Db\\Migration\\Tests\\Runtime\\": "runtime/tests",
             "Yiisoft\\Db\\Migration\\Tests\\ForTest\\": "tests/Support",
             "Yiisoft\\Db\\Migration\\Tests\\Support\\": "tests/Support",
             "Yiisoft\\Db\\Migration\\Tests\\Support\\MigrationsExtra\\": [
diff --git a/phpunit.xml.dist b/phpunit.xml.dist
index ea007a28..16def497 100644
--- a/phpunit.xml.dist
+++ b/phpunit.xml.dist
@@ -1,6 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     bootstrap="vendor/autoload.php"
+    cacheDirectory="runtime/.phpunit.cache"
     colors="true"
     failOnRisky="true"
     failOnWarning="true"
diff --git a/tests/runtime/.gitignore b/runtime/.gitignore
similarity index 100%
rename from tests/runtime/.gitignore
rename to runtime/.gitignore
diff --git a/tests/Migration/BinTest.php b/tests/Migration/BinTest.php
index e0b91928..ca8f6092 100644
--- a/tests/Migration/BinTest.php
+++ b/tests/Migration/BinTest.php
@@ -20,17 +20,17 @@ protected function setUp(): void
     {
         FileHelper::copyFile(
             dirname(__DIR__, 2) . '/bin/yii-db-migration',
-            dirname(__DIR__) . '/runtime/bin/vendor/yiisoft/db-migration/bin/yii-db-migration',
+            dirname(__DIR__, 2) . '/runtime/tests/bin/vendor/yiisoft/db-migration/bin/yii-db-migration',
         );
         FileHelper::copyFile(
             dirname(__DIR__, 2) . '/bin/yii-db-migration.php',
-            dirname(__DIR__) . '/runtime/bin/yii-db-migration.php',
+            dirname(__DIR__, 2) . '/runtime/tests/bin/yii-db-migration.php',
         );
     }
 
     protected function tearDown(): void
     {
-        FileHelper::removeDirectory(dirname(__DIR__) . '/runtime/bin');
+        FileHelper::removeDirectory(dirname(__DIR__, 2) . '/runtime/tests/bin');
     }
 
     public function testBase(): void
@@ -62,15 +62,15 @@ public function testWithoutConnection(): void
 
     public function testWithoutConfig(): void
     {
-        unlink(dirname(__DIR__) . '/runtime/bin/yii-db-migration.php');
+        unlink(dirname(__DIR__, 2) . '/runtime/tests/bin/yii-db-migration.php');
 
         [$output, $exitCode] = $this->runYiiDbMigration();
 
         $this->assertSame(1, $exitCode);
         $this->assertStringContainsString('not found', $output);
         $this->assertStringContainsString(
-            'cp "' . dirname(__DIR__) . '/runtime/bin/vendor/yiisoft/db-migration/bin/yii-db-migration.php" "'
-            . dirname(__DIR__) . '/runtime/bin/yii-db-migration.php"',
+            'cp "' . dirname(__DIR__, 2) . '/runtime/tests/bin/vendor/yiisoft/db-migration/bin/yii-db-migration.php" "'
+            . dirname(__DIR__, 2) . '/runtime/tests/bin/yii-db-migration.php"',
             $output,
         );
     }
@@ -95,7 +95,7 @@ public function testNamedDatabase(): void
                 ),
             ],
             PHP);
-        $directory = dirname(__DIR__) . '/runtime/bin';
+        $directory = dirname(__DIR__, 2) . '/runtime/tests/bin';
         FileHelper::ensureDirectory($directory . '/maps');
         file_put_contents($directory . '/maps/M260930000000Maps.php', <<<'PHP'
             <?php
@@ -121,7 +121,7 @@ public function up(\Yiisoft\Db\Migration\MigrationBuilder $b): void
 
     public function testNamedDefaultWithoutLegacyOptions(): void
     {
-        $directory = dirname(__DIR__) . '/runtime/bin';
+        $directory = dirname(__DIR__, 2) . '/runtime/tests/bin';
         FileHelper::ensureDirectory($directory . '/migrations');
         file_put_contents($directory . '/yii-db-migration.php', $this->namedDefaultConfig());
         [$output, $exitCode] = $this->runYiiDbMigration(['migrate:create', 'Example']);
@@ -144,7 +144,7 @@ public static function legacyOptions(): array
     #[DataProvider('legacyOptions')]
     public function testRejectsDuplicateDefaultConfiguration(string $option): void
     {
-        $directory = dirname(__DIR__) . '/runtime/bin';
+        $directory = dirname(__DIR__, 2) . '/runtime/tests/bin';
         file_put_contents($directory . '/yii-db-migration.php', str_replace(
             'return [',
             "return ['$option' => null,",
@@ -177,7 +177,7 @@ private function namedDefaultConfig(): string
 
     private function replaceParams($search, $replace): void
     {
-        $file = dirname(__DIR__) . '/runtime/bin/yii-db-migration.php';
+        $file = dirname(__DIR__, 2) . '/runtime/tests/bin/yii-db-migration.php';
         file_put_contents(
             $file,
             str_replace($search, $replace, file_get_contents($file)),
diff --git a/tests/Migration/ConfigTest.php b/tests/Migration/ConfigTest.php
index 3ba9e329..c0498c04 100644
--- a/tests/Migration/ConfigTest.php
+++ b/tests/Migration/ConfigTest.php
@@ -121,7 +121,7 @@ private function createConsoleContainer(array $databases = []): Container
                         'class' => SqLiteConnection::class,
                         '__construct()' => [
                             'driver' => new SqLiteDriver(
-                                'sqlite:' . dirname(__DIR__, 2) . '/runtime/config-test.sq3',
+                                'sqlite:' . dirname(__DIR__, 2) . '/runtime/tests/config-test.sq3',
                             ),
                         ],
                     ],
diff --git a/tests/Migration/bin-runner.php b/tests/Migration/bin-runner.php
index bb728538..58e34c62 100755
--- a/tests/Migration/bin-runner.php
+++ b/tests/Migration/bin-runner.php
@@ -5,4 +5,4 @@
 
 $_composer_autoload_path = \dirname(__DIR__, 2) . '/vendor/autoload.php';
 
-require \dirname(__DIR__) . '/runtime/bin/vendor/yiisoft/db-migration/bin/yii-db-migration';
+require \dirname(__DIR__, 2) . '/runtime/tests/bin/vendor/yiisoft/db-migration/bin/yii-db-migration';
diff --git a/tests/Support/Helper/MigrationHelper.php b/tests/Support/Helper/MigrationHelper.php
index d61d7fff..e9f9448e 100644
--- a/tests/Support/Helper/MigrationHelper.php
+++ b/tests/Support/Helper/MigrationHelper.php
@@ -15,11 +15,11 @@
 
 final class MigrationHelper
 {
-    public const NAMESPACE = 'Yiisoft\\Db\\Migration\\Tests\\runtime\\MigrationNamespace';
+    public const NAMESPACE = 'Yiisoft\\Db\\Migration\\Tests\\Runtime\\MigrationNamespace';
 
     public static function getRuntimePath(): string
     {
-        return dirname(__DIR__, 2) . '/runtime/migration-path';
+        return dirname(__DIR__, 3) . '/runtime/tests/migration-path';
     }
 
     /**
@@ -112,7 +112,7 @@ public static function createAndApplyMigration(
 
     public static function getPathForMigrationNamespace(): string
     {
-        return dirname(__DIR__, 2) . '/runtime/MigrationNamespace';
+        return dirname(__DIR__, 3) . '/runtime/tests/MigrationNamespace';
     }
 
     public static function resetPathAndNamespace(ContainerInterface $container): void
@@ -135,7 +135,7 @@ private static function preparePaths(): void
         foreach ($paths as $path) {
             file_exists($path)
                 ? FileHelper::clearDirectory($path)
-                : mkdir($path);
+                : FileHelper::ensureDirectory($path);
         }
     }
 }