Finish tests

- Add sub-doc handling for SQLite fields
- Add casting for PostgreSQL BT on numeric value
- Add hasItems() to DocumentList
- Fix SQL syntax problems exposed by tests

tests/integration/sqlite/CustomTest.php

@@ -4,12 +4,14 @@ namespace Test\Integration\SQLite;
 
 use BitBadger\PDODocument\{Count, Custom, DocumentException, Query};
 use BitBadger\PDODocument\Mapper\{CountMapper, DocumentMapper};
+use PHPUnit\Framework\Attributes\TestDox;
 use PHPUnit\Framework\TestCase;
 use Test\Integration\TestDocument;
 
 /**
  * SQLite Integration tests for the Custom class
  */
+#[TestDox('Custom (SQLite integration)')]
 class CustomTest extends TestCase
 {
     /** @var string Database name for throwaway database */
@@ -61,9 +63,7 @@ class CustomTest extends TestCase
         $list = Custom::list(Query::selectFromTable(ThrowawayDb::TABLE) . " WHERE data->>'num_value' > :value",
             [':value' => 100], new DocumentMapper(TestDocument::class));
         $this->assertNotNull($list, 'The document list should not be null');
-        $count = 0;
-        foreach ($list->items() as $ignored) $count++;
-        $this->assertEquals(0, $count, 'There should have been no documents in the list');
+        $this->assertFalse($list->hasItems(), 'There should have been no documents in the list');
     }
 
     public function testArraySucceedsWhenDataIsFound()