daffie
--- a/core/tests/Drupal/Tests/Core/Database/UrlConversionTest.php
+++ b/core/tests/Drupal/Tests/Core/Database/UrlConversionTest.php
    return [
      ['foo', '', "Missing scheme in URL 'foo'"],
      ['foo', 'bar', "Missing scheme in URL 'foo'"],
-      ['foo://', 'bar', "Can not convert 'foo://' to a database connection, the module providing the driver 'foo' is not specified"],
-      ['foo://bar', 'baz', "Can not convert 'foo://bar' to a database connection, the module providing the driver 'foo' is not specified"],
-      ['foo://bar:port', 'baz', "Can not convert 'foo://bar:port' to a database connection, the module providing the driver 'foo' is not specified"],
      ['foo/bar/baz', 'bar2', "Missing scheme in URL 'foo/bar/baz'"],
-      ['foo://bar:baz@test1', 'test2', "Can not convert 'foo://bar:baz@test1' to a database connection, the module providing the driver 'foo' is not specified"],
    ];
  }

+  /**
+   * Tests that the exception for having no module setting is not thrown.
+   */
+  public function testNoModuleIsSpecifiedExceptionIsRemoved() {
-  public function testNoModuleIsSpecifiedExceptionIsRemoved() {
+  public function testNoModuleIsSpecifiedExceptionIsRemoved(): void {
--- a/core/lib/Drupal/Core/Database/Database.php
+++ b/core/lib/Drupal/Core/Database/Database.php
    $url_component_query = $url_components['query'] ?? '';
    parse_str($url_component_query, $query);

-    // Add the module key for core database drivers when the module key is not
-    // set.
-    if (!isset($query['module']) && in_array($driverName, ['mysql', 'pgsql', 'sqlite'], TRUE)) {
-      $query['module'] = $driverName;
-    }
+    // Add the module key for database drivers when the module key is not set.
    if (!isset($query['module'])) {
-      throw new \InvalidArgumentException("Can not convert '$url' to a database connection, the module providing the driver '{$driverName}' is not specified");
+      $query['module'] = $driverName;
    }

    $driverNamespace = "Drupal\\{$query['module']}\\Driver\\Database\\{$driverName}";
-    // Add the module key for database drivers when the module key is not set.
-    if (!isset($query['module'])) {
-      $query['module'] = $driverName;
-    }
-
-    $driverNamespace = "Drupal\\{$query['module']}\\Driver\\Database\\{$driverName}";
+    // Use the driver name as the module name if module is not provided.
+    $module = $query['module'] ?? $driverName;
+
+    $driverNamespace = "Drupal\\{$module}\\Driver\\Database\\{$driverName}";
--- a/core/tests/Drupal/Tests/Core/Database/UrlConversionTest.php
+++ b/core/tests/Drupal/Tests/Core/Database/UrlConversionTest.php
    return [
      ['foo', '', "Missing scheme in URL 'foo'"],
      ['foo', 'bar', "Missing scheme in URL 'foo'"],
-      ['foo://', 'bar', "Can not convert 'foo://' to a database connection, the module providing the driver 'foo' is not specified"],
-      ['foo://bar', 'baz', "Can not convert 'foo://bar' to a database connection, the module providing the driver 'foo' is not specified"],
-      ['foo://bar:port', 'baz', "Can not convert 'foo://bar:port' to a database connection, the module providing the driver 'foo' is not specified"],
      ['foo/bar/baz', 'bar2', "Missing scheme in URL 'foo/bar/baz'"],
-      ['foo://bar:baz@test1', 'test2', "Can not convert 'foo://bar:baz@test1' to a database connection, the module providing the driver 'foo' is not specified"],
    ];
  }

+  /**
+   * Tests that the exception for having no module setting is not thrown.
+   */
+  public function testNoModuleIsSpecifiedExceptionIsRemoved(): void {
--- a/core/modules/system/tests/modules/dummydb/src/Driver/Database/dummydb/Connection.php 0 → 100644
+++ b/core/modules/system/tests/modules/dummydb/src/Driver/Database/dummydb/Connection.php 0 → 100644
+use Drupal\Core\Database\ExceptionHandler;
+use Drupal\Core\Database\Query\Condition;
+use Drupal\Core\Database\Query\Delete;
+use Drupal\Core\Database\Query\Insert;
+use Drupal\Core\Database\Query\Merge;
+use Drupal\Core\Database\Query\Select;
+use Drupal\Core\Database\Query\Truncate;
+use Drupal\Core\Database\Query\Update;
+use Drupal\Core\Database\StatementWrapperIterator;
+
+// cspell:ignore dummydb
+
+/**
+ * DummyDB test implementation of \Drupal\Core\Database\Connection.
+ */
+class Connection extends CoreConnection {