should be it

external/duckdb/tools/swift/duckdb-swift/Tests/DuckDBTests/CodingUserInfoKeysTests.swift

@@ -0,0 +1,47 @@
+//
+//  DuckDB
+//  https://github.com/duckdb/duckdb-swift
+//
+//  Copyright © 2018-2024 Stichting DuckDB Foundation
+//
+//  Permission is hereby granted, free of charge, to any person obtaining a copy
+//  of this software and associated documentation files (the "Software"), to
+//  deal in the Software without restriction, including without limitation the
+//  rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+//  sell copies of the Software, and to permit persons to whom the Software is
+//  furnished to do so, subject to the following conditions:
+//
+//  The above copyright notice and this permission notice shall be included in
+//  all copies or substantial portions of the Software.
+//
+//  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+//  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+//  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+//  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+//  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+//  FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+//  IN THE SOFTWARE.
+
+import XCTest
+@testable import DuckDB
+
+final class CodingUserInfoKeysTests: XCTestCase {
+  func test_logical_type() throws {
+    let connection = try Database(store: .inMemory).connect()
+    try connection.execute("""
+      CREATE TABLE t1(int_list INT[]);
+      INSERT INTO t1 VALUES ([1, 2, 3]);
+    """)
+    let result = try connection.query("SELECT * FROM t1;")
+    let column = result[0].cast(to: TestDynamicDecodable.self)
+    XCTAssertEqual(column[0]?.logicalType?.dataType, .list)
+  }
+}
+
+struct TestDynamicDecodable: Decodable {
+  let logicalType: LogicalType?
+
+  init(from decoder: Decoder) throws {
+    self.logicalType = decoder.userInfo[CodingUserInfoKeys.logicalTypeCodingUserInfoKey] as? LogicalType
+  }
+}