should be it

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

@@ -0,0 +1,85 @@
+//
+//  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 DatabaseTests: XCTestCase {
+  
+  func test_create_in_memory_database() throws {
+    let _ = try Database(store: .inMemory)
+  }
+  
+  func test_create_local_file_datebase() throws {
+    let fileURL = try Self.generateTemporaryFileURL(forFileNamed: "test.tb")
+    defer { Self.cleanUpTemporaryFileURL(fileURL) }
+    let _ = try Database(store: .file(at: fileURL))
+  }
+  
+  func test_connect_to_in_memory_datebase() throws {
+    let _ = try Database(store: .inMemory).connect()
+  }
+  
+  func test_connect_to_local_file_datebase() throws {
+    let fileURL = try Self.generateTemporaryFileURL(forFileNamed: "test.tb")
+    defer { Self.cleanUpTemporaryFileURL(fileURL) }
+    let _ = try Database(store: .file(at: fileURL)).connect()
+  }
+  
+  func test_execute_statement() throws {
+    let connection = try Database(store: .inMemory).connect()
+    try connection.execute("SELECT version();")
+  }
+  
+  func test_query_result() throws {
+    let connection = try Database(store: .inMemory).connect()
+    let result = try connection.query("SELECT * FROM test_all_types();")
+    let element: Void? = result[0][0]
+    XCTAssertNotNil(element)
+  }
+}
+
+// MARK: - Temp Directory Helpers
+
+private extension DatabaseTests {
+  
+  static func generateTemporaryFileURL(forFileNamed fileName: String) throws -> URL {
+    let tmpDirURL = try FileManager.default.url(
+      for: .itemReplacementDirectory,
+      in: .userDomainMask,
+      appropriateFor: FileManager.default.urls(for: .cachesDirectory, in: .userDomainMask)[0],
+      create: true
+    )
+    return tmpDirURL.appendingPathComponent(fileName)
+  }
+  
+  static func cleanUpTemporaryFileURL(_ fileURL: URL) {
+    do {
+      try FileManager.default.removeItem(at: fileURL.deletingLastPathComponent())
+    }
+    catch {
+      print("Ignored failed attempt to remove temp dir at \(fileURL):\n\t\(error)")
+    }
+  }
+}