Create failing tests for index creation in other schema for SQLite

tests/Functional/Platform/OtherSchemaTest.php

@@ -0,0 +1,27 @@
+<?php
+
+namespace Doctrine\DBAL\Tests\Functional\Platform;
+
+use Doctrine\DBAL\Platforms\SqlitePlatform;
+use Doctrine\DBAL\Schema\Table;
+use Doctrine\DBAL\Tests\FunctionalTestCase;
+use Doctrine\DBAL\Types\Types;
+
+class OtherSchemaTest extends FunctionalTestCase
+{
+    public function testATableCanBeCreatedInAnotherSchema(): void
+    {
+        if (! ($this->connection->getDatabasePlatform() instanceof SqlitePlatform)) {
+            self::markTestSkipped('This test requires SQLite');
+        }
+
+        $this->connection->executeStatement("ATTACH DATABASE '/tmp/test_other_schema.sqlite' AS other");
+        $this->connection->getDatabasePlatform()->disableSchemaEmulation();
+
+        $table = new Table('other.test_other_schema');
+        $table->addColumn('id', Types::INTEGER);
+        $table->addIndex(['id']);
+
+        $this->dropAndCreateTable($table);
+    }
+}

tests/Platforms/SqlitePlatformTest.php

@@ -17,7 +17,10 @@ class SqlitePlatformTest extends AbstractPlatformTestCase
 {
     public function createPlatform(): AbstractPlatform
     {
-        return new SqlitePlatform();
+        $platform =  new SqlitePlatform();
+        $platform->disableSchemaEmulation();
+
+        return $platform;
     }
 
     public function getGenerateTableSql(): string
@@ -768,4 +771,19 @@ public function testGetCreateTableSQLWithColumnCollation(): void
             $this->platform->getCreateTableSQL($table),
         );
     }
+
+    public function testCreateTableInOtherSchema(): void
+    {
+        $table = new Table('other_schema.foo');
+        $table->addColumn('id', Types::INTEGER);
+        $table->addIndex(['id']);
+
+        self::assertSame(
+            [
+                'CREATE TABLE other_schema.foo (id INTEGER NOT NULL)',
+                'CREATE INDEX other_schema.IDX_8C73652176FF8CAA ON foo (id)',
+            ],
+            $this->platform->getCreateTableSQL($table),
+        );
+    }
 }