diff --git a/bdk-swift/Package.swift b/bdk-swift/Package.swift
index f95411a..004aaa2 100644
--- a/bdk-swift/Package.swift
+++ b/bdk-swift/Package.swift
@@ -33,6 +33,10 @@ let package = Package(
         ),
         .testTarget(
             name: "BitcoinDevKitTests",
-            dependencies: ["BitcoinDevKit"]),
+            dependencies: ["BitcoinDevKit"],
+            resources: [
+                .copy("Resources/pre_existing_wallet_persistence_test.sqlite")
+            ]
+        ),
     ]
 )
diff --git a/bdk-swift/Tests/BitcoinDevKitTests/LiveElectrumClientTests.swift b/bdk-swift/Tests/BitcoinDevKitTests/LiveElectrumClientTests.swift
index d86d604..2ca9e0b 100644
--- a/bdk-swift/Tests/BitcoinDevKitTests/LiveElectrumClientTests.swift
+++ b/bdk-swift/Tests/BitcoinDevKitTests/LiveElectrumClientTests.swift
@@ -2,16 +2,17 @@ import XCTest
 @testable import BitcoinDevKit
 
 private let SIGNET_ELECTRUM_URL = "ssl://mempool.space:60602"
-private let descriptor = try! Descriptor(
-    descriptor: "wpkh(tprv8ZgxMBicQKsPf2qfrEygW6fdYseJDDrVnDv26PH5BHdvSuG6ecCbHqLVof9yZcMoM31z9ur3tTYbSnr1WBqbGX97CbXcmp5H6qeMpyvx35B/84h/1h/0h/0/*)", 
-    network: Network.signet
-)
-private let changeDescriptor = try! Descriptor(
-    descriptor: "wpkh(tprv8ZgxMBicQKsPf2qfrEygW6fdYseJDDrVnDv26PH5BHdvSuG6ecCbHqLVof9yZcMoM31z9ur3tTYbSnr1WBqbGX97CbXcmp5H6qeMpyvx35B/84h/1h/0h/1/*)", 
-    network: Network.signet
-)
 
 final class LiveElectrumClientTests: XCTestCase {
+    private let descriptor = try! Descriptor(
+        descriptor: "wpkh(tprv8ZgxMBicQKsPf2qfrEygW6fdYseJDDrVnDv26PH5BHdvSuG6ecCbHqLVof9yZcMoM31z9ur3tTYbSnr1WBqbGX97CbXcmp5H6qeMpyvx35B/84h/1h/0h/0/*)", 
+        network: Network.signet
+    )
+    private let changeDescriptor = try! Descriptor(
+        descriptor: "wpkh(tprv8ZgxMBicQKsPf2qfrEygW6fdYseJDDrVnDv26PH5BHdvSuG6ecCbHqLVof9yZcMoM31z9ur3tTYbSnr1WBqbGX97CbXcmp5H6qeMpyvx35B/84h/1h/0h/1/*)", 
+        network: Network.signet
+    )
+
     func testSyncedBalance() throws {
         let wallet = try Wallet(
             descriptor: descriptor,
diff --git a/bdk-swift/Tests/BitcoinDevKitTests/LiveMemoryWalletTests.swift b/bdk-swift/Tests/BitcoinDevKitTests/LiveMemoryWalletTests.swift
index f042bdc..4c3282a 100644
--- a/bdk-swift/Tests/BitcoinDevKitTests/LiveMemoryWalletTests.swift
+++ b/bdk-swift/Tests/BitcoinDevKitTests/LiveMemoryWalletTests.swift
@@ -3,16 +3,16 @@ import XCTest
 
 private let SIGNET_ESPLORA_URL = "http://signet.bitcoindevkit.net"
 private let TESTNET_ESPLORA_URL = "https://esplora.testnet.kuutamo.cloud"
-private let descriptor = try! Descriptor(
-    descriptor: "wpkh(tprv8ZgxMBicQKsPf2qfrEygW6fdYseJDDrVnDv26PH5BHdvSuG6ecCbHqLVof9yZcMoM31z9ur3tTYbSnr1WBqbGX97CbXcmp5H6qeMpyvx35B/84h/1h/0h/0/*)", 
-    network: Network.signet
-)
-private let changeDescriptor = try! Descriptor(
-    descriptor: "wpkh(tprv8ZgxMBicQKsPf2qfrEygW6fdYseJDDrVnDv26PH5BHdvSuG6ecCbHqLVof9yZcMoM31z9ur3tTYbSnr1WBqbGX97CbXcmp5H6qeMpyvx35B/84h/1h/0h/1/*)", 
-    network: Network.signet
-)
 
 final class LiveMemoryWalletTests: XCTestCase {
+    private let descriptor = try! Descriptor(
+        descriptor: "wpkh(tprv8ZgxMBicQKsPf2qfrEygW6fdYseJDDrVnDv26PH5BHdvSuG6ecCbHqLVof9yZcMoM31z9ur3tTYbSnr1WBqbGX97CbXcmp5H6qeMpyvx35B/84h/1h/0h/0/*)", 
+        network: Network.signet
+    )
+    private let changeDescriptor = try! Descriptor(
+        descriptor: "wpkh(tprv8ZgxMBicQKsPf2qfrEygW6fdYseJDDrVnDv26PH5BHdvSuG6ecCbHqLVof9yZcMoM31z9ur3tTYbSnr1WBqbGX97CbXcmp5H6qeMpyvx35B/84h/1h/0h/1/*)", 
+        network: Network.signet
+    )
 
     func testSyncedBalance() throws {
         let wallet = try Wallet(
diff --git a/bdk-swift/Tests/BitcoinDevKitTests/LiveTransactionTests.swift b/bdk-swift/Tests/BitcoinDevKitTests/LiveTransactionTests.swift
index a4c376c..ae390e3 100644
--- a/bdk-swift/Tests/BitcoinDevKitTests/LiveTransactionTests.swift
+++ b/bdk-swift/Tests/BitcoinDevKitTests/LiveTransactionTests.swift
@@ -3,16 +3,18 @@ import XCTest
 
 private let SIGNET_ESPLORA_URL = "http://signet.bitcoindevkit.net"
 private let TESTNET_ESPLORA_URL = "https://esplora.testnet.kuutamo.cloud"
-private let descriptor = try! Descriptor(
-    descriptor: "wpkh(tprv8ZgxMBicQKsPf2qfrEygW6fdYseJDDrVnDv26PH5BHdvSuG6ecCbHqLVof9yZcMoM31z9ur3tTYbSnr1WBqbGX97CbXcmp5H6qeMpyvx35B/84h/1h/0h/0/*)", 
-    network: Network.signet
-)
-private let changeDescriptor = try! Descriptor(
-    descriptor: "wpkh(tprv8ZgxMBicQKsPf2qfrEygW6fdYseJDDrVnDv26PH5BHdvSuG6ecCbHqLVof9yZcMoM31z9ur3tTYbSnr1WBqbGX97CbXcmp5H6qeMpyvx35B/84h/1h/0h/1/*)", 
-    network: Network.signet
-)
+
 
 final class LiveTransactionTests: XCTestCase {
+    private let descriptor = try! Descriptor(
+    descriptor: "wpkh(tprv8ZgxMBicQKsPf2qfrEygW6fdYseJDDrVnDv26PH5BHdvSuG6ecCbHqLVof9yZcMoM31z9ur3tTYbSnr1WBqbGX97CbXcmp5H6qeMpyvx35B/84h/1h/0h/0/*)", 
+    network: Network.signet
+    )
+    private let changeDescriptor = try! Descriptor(
+        descriptor: "wpkh(tprv8ZgxMBicQKsPf2qfrEygW6fdYseJDDrVnDv26PH5BHdvSuG6ecCbHqLVof9yZcMoM31z9ur3tTYbSnr1WBqbGX97CbXcmp5H6qeMpyvx35B/84h/1h/0h/1/*)", 
+        network: Network.signet
+    )
+
     func testSyncedBalance() throws {
         let wallet = try Wallet(
             descriptor: descriptor,
diff --git a/bdk-swift/Tests/BitcoinDevKitTests/LiveTxBuilderTests.swift b/bdk-swift/Tests/BitcoinDevKitTests/LiveTxBuilderTests.swift
index ab41538..b249f41 100644
--- a/bdk-swift/Tests/BitcoinDevKitTests/LiveTxBuilderTests.swift
+++ b/bdk-swift/Tests/BitcoinDevKitTests/LiveTxBuilderTests.swift
@@ -3,16 +3,16 @@ import XCTest
 
 private let SIGNET_ESPLORA_URL = "http://signet.bitcoindevkit.net"
 private let TESTNET_ESPLORA_URL = "https://esplora.testnet.kuutamo.cloud"
-private let descriptor = try! Descriptor(
-    descriptor: "wpkh(tprv8ZgxMBicQKsPf2qfrEygW6fdYseJDDrVnDv26PH5BHdvSuG6ecCbHqLVof9yZcMoM31z9ur3tTYbSnr1WBqbGX97CbXcmp5H6qeMpyvx35B/84h/1h/0h/0/*)", 
-    network: Network.signet
-)
-private let changeDescriptor = try! Descriptor(
-    descriptor: "wpkh(tprv8ZgxMBicQKsPf2qfrEygW6fdYseJDDrVnDv26PH5BHdvSuG6ecCbHqLVof9yZcMoM31z9ur3tTYbSnr1WBqbGX97CbXcmp5H6qeMpyvx35B/84h/1h/0h/1/*)", 
-    network: Network.signet
-)
 
 final class LiveTxBuilderTests: XCTestCase {
+    private let descriptor = try! Descriptor(
+    descriptor: "wpkh(tprv8ZgxMBicQKsPf2qfrEygW6fdYseJDDrVnDv26PH5BHdvSuG6ecCbHqLVof9yZcMoM31z9ur3tTYbSnr1WBqbGX97CbXcmp5H6qeMpyvx35B/84h/1h/0h/0/*)", 
+    network: Network.signet
+    )
+    private let changeDescriptor = try! Descriptor(
+        descriptor: "wpkh(tprv8ZgxMBicQKsPf2qfrEygW6fdYseJDDrVnDv26PH5BHdvSuG6ecCbHqLVof9yZcMoM31z9ur3tTYbSnr1WBqbGX97CbXcmp5H6qeMpyvx35B/84h/1h/0h/1/*)", 
+        network: Network.signet
+    )
     var dbFilePath: URL!
 
     override func setUpWithError() throws {
diff --git a/bdk-swift/Tests/BitcoinDevKitTests/LiveWalletTests.swift b/bdk-swift/Tests/BitcoinDevKitTests/LiveWalletTests.swift
index b0c62ec..3ad1701 100644
--- a/bdk-swift/Tests/BitcoinDevKitTests/LiveWalletTests.swift
+++ b/bdk-swift/Tests/BitcoinDevKitTests/LiveWalletTests.swift
@@ -3,16 +3,16 @@ import XCTest
 
 private let SIGNET_ESPLORA_URL = "http://signet.bitcoindevkit.net"
 private let TESTNET_ESPLORA_URL = "https://esplora.testnet.kuutamo.cloud"
-private let descriptor = try! Descriptor(
-    descriptor: "wpkh(tprv8ZgxMBicQKsPf2qfrEygW6fdYseJDDrVnDv26PH5BHdvSuG6ecCbHqLVof9yZcMoM31z9ur3tTYbSnr1WBqbGX97CbXcmp5H6qeMpyvx35B/84h/1h/0h/0/*)", 
-    network: Network.signet
-)
-private let changeDescriptor = try! Descriptor(
-    descriptor: "wpkh(tprv8ZgxMBicQKsPf2qfrEygW6fdYseJDDrVnDv26PH5BHdvSuG6ecCbHqLVof9yZcMoM31z9ur3tTYbSnr1WBqbGX97CbXcmp5H6qeMpyvx35B/84h/1h/0h/1/*)", 
-    network: Network.signet
-)
 
 final class LiveWalletTests: XCTestCase {
+    private let descriptor = try! Descriptor(
+    descriptor: "wpkh(tprv8ZgxMBicQKsPf2qfrEygW6fdYseJDDrVnDv26PH5BHdvSuG6ecCbHqLVof9yZcMoM31z9ur3tTYbSnr1WBqbGX97CbXcmp5H6qeMpyvx35B/84h/1h/0h/0/*)", 
+    network: Network.signet
+    )
+    private let changeDescriptor = try! Descriptor(
+        descriptor: "wpkh(tprv8ZgxMBicQKsPf2qfrEygW6fdYseJDDrVnDv26PH5BHdvSuG6ecCbHqLVof9yZcMoM31z9ur3tTYbSnr1WBqbGX97CbXcmp5H6qeMpyvx35B/84h/1h/0h/1/*)", 
+        network: Network.signet
+    )
     var dbFilePath: URL!
 
     override func setUpWithError() throws {
diff --git a/bdk-swift/Tests/BitcoinDevKitTests/OfflinePersistenceTests.swift b/bdk-swift/Tests/BitcoinDevKitTests/OfflinePersistenceTests.swift
index dc1a89c..b6a15da 100644
--- a/bdk-swift/Tests/BitcoinDevKitTests/OfflinePersistenceTests.swift
+++ b/bdk-swift/Tests/BitcoinDevKitTests/OfflinePersistenceTests.swift
@@ -1,30 +1,33 @@
 import XCTest
 @testable import BitcoinDevKit
 
-private let descriptor = try! Descriptor(
+final class OfflinePersistenceTests: XCTestCase {
+    private let descriptor = try! Descriptor(
     descriptor: "wpkh(tprv8ZgxMBicQKsPf2qfrEygW6fdYseJDDrVnDv26PH5BHdvSuG6ecCbHqLVof9yZcMoM31z9ur3tTYbSnr1WBqbGX97CbXcmp5H6qeMpyvx35B/84h/1h/0h/0/*)", 
     network: Network.signet
-)
-private let changeDescriptor = try! Descriptor(
-    descriptor: "wpkh(tprv8ZgxMBicQKsPf2qfrEygW6fdYseJDDrVnDv26PH5BHdvSuG6ecCbHqLVof9yZcMoM31z9ur3tTYbSnr1WBqbGX97CbXcmp5H6qeMpyvx35B/84h/1h/0h/1/*)", 
-    network: Network.signet
-)
-
-final class OfflinePersistenceTests: XCTestCase {
+    )
+    private let changeDescriptor = try! Descriptor(
+        descriptor: "wpkh(tprv8ZgxMBicQKsPf2qfrEygW6fdYseJDDrVnDv26PH5BHdvSuG6ecCbHqLVof9yZcMoM31z9ur3tTYbSnr1WBqbGX97CbXcmp5H6qeMpyvx35B/84h/1h/0h/1/*)", 
+        network: Network.signet
+    )
     var dbFilePath: URL!
 
     override func setUpWithError() throws {
         super.setUp()
-        let currentDirectoryURL = URL(fileURLWithPath: FileManager.default.currentDirectoryPath)
-        let dbFileName = "pre_existing_wallet_persistence_test.sqlite"
-        dbFilePath = currentDirectoryURL.appendingPathComponent(dbFileName)
+
+        guard let resourceUrl = Bundle.module.url(
+          forResource: "pre_existing_wallet_persistence_test",
+          withExtension: "sqlite"
+        ) else {
+            print("error finding resourceURL")
+            return
+        }
+        dbFilePath = resourceUrl
     }
 
     func testPersistence() throws {
         let sqliteStore = try! SqliteStore(path: dbFilePath.path)
         let initialChangeSet = try! sqliteStore.read()
-        XCTAssertTrue(initialChangeSet != nil, "ChangeSet should not be nil after loading a valid database")
-        
         let wallet = try Wallet.newOrLoad(
             descriptor: descriptor,
             changeDescriptor: changeDescriptor,
diff --git a/bdk-swift/Tests/BitcoinDevKitTests/OfflineWalletTests.swift b/bdk-swift/Tests/BitcoinDevKitTests/OfflineWalletTests.swift
index b63d386..4f37a38 100644
--- a/bdk-swift/Tests/BitcoinDevKitTests/OfflineWalletTests.swift
+++ b/bdk-swift/Tests/BitcoinDevKitTests/OfflineWalletTests.swift
@@ -1,16 +1,15 @@
 import XCTest
 @testable import BitcoinDevKit
 
-private let descriptor = try! Descriptor(
+final class OfflineWalletTests: XCTestCase {
+    private let descriptor = try! Descriptor(
     descriptor: "wpkh(tprv8ZgxMBicQKsPf2qfrEygW6fdYseJDDrVnDv26PH5BHdvSuG6ecCbHqLVof9yZcMoM31z9ur3tTYbSnr1WBqbGX97CbXcmp5H6qeMpyvx35B/84h/1h/0h/0/*)", 
     network: Network.signet
-)
-private let changeDescriptor = try! Descriptor(
-    descriptor: "wpkh(tprv8ZgxMBicQKsPf2qfrEygW6fdYseJDDrVnDv26PH5BHdvSuG6ecCbHqLVof9yZcMoM31z9ur3tTYbSnr1WBqbGX97CbXcmp5H6qeMpyvx35B/84h/1h/0h/1/*)", 
-    network: Network.signet
-)
-
-final class OfflineWalletTests: XCTestCase {
+    )
+    private let changeDescriptor = try! Descriptor(
+        descriptor: "wpkh(tprv8ZgxMBicQKsPf2qfrEygW6fdYseJDDrVnDv26PH5BHdvSuG6ecCbHqLVof9yZcMoM31z9ur3tTYbSnr1WBqbGX97CbXcmp5H6qeMpyvx35B/84h/1h/0h/1/*)", 
+        network: Network.signet
+    )
     var dbFilePath: URL!
 
     override func setUpWithError() throws {
diff --git a/bdk-swift/pre_existing_wallet_persistence_test.sqlite b/bdk-swift/Tests/BitcoinDevKitTests/Resources/pre_existing_wallet_persistence_test.sqlite
similarity index 100%
rename from bdk-swift/pre_existing_wallet_persistence_test.sqlite
rename to bdk-swift/Tests/BitcoinDevKitTests/Resources/pre_existing_wallet_persistence_test.sqlite