refactor layouts module to domain/di and prepare 0.256 release

tests/Unit/Domain/Languages/LanguagesRepositoryTest.php

@@ -112,5 +112,37 @@ class LanguagesRepositoryTest extends TestCase
         $this->assertCount(1, $result['items']);
         $this->assertSame('pl', $result['items'][0]['id']);
     }
-}
 
+    public function testDefaultLanguageIdReturnsLanguageWithStartFlag(): void
+    {
+        $mockDb = $this->createMock(\medoo::class);
+        $mockDb->expects($this->once())
+            ->method('select')
+            ->with('pp_langs', '*', ['ORDER' => ['o' => 'ASC']])
+            ->willReturn([
+                ['id' => 'en', 'start' => 0],
+                ['id' => 'pl', 'start' => 1],
+            ]);
+
+        $repository = new LanguagesRepository($mockDb);
+        $this->assertSame('pl', $repository->defaultLanguageId());
+    }
+
+    public function testDefaultLanguageIdFallsBackToFirstLanguageOrPl(): void
+    {
+        $mockDb = $this->createMock(\medoo::class);
+        $mockDb->expects($this->exactly(2))
+            ->method('select')
+            ->with('pp_langs', '*', ['ORDER' => ['o' => 'ASC']])
+            ->willReturnOnConsecutiveCalls(
+                [
+                    ['id' => 'en', 'start' => 0],
+                ],
+                []
+            );
+
+        $repository = new LanguagesRepository($mockDb);
+        $this->assertSame('en', $repository->defaultLanguageId());
+        $this->assertSame('pl', $repository->defaultLanguageId());
+    }
+}