bdk-ffi/bdk-swift/Tests/BitcoinDevKitTests/LiveTxBuilderTests.swift

import XCTest
@testable import BitcoinDevKit

final class LiveTxBuilderTests: XCTestCase {
    func testTxBuilder() throws {
        let descriptor = try Descriptor(
            descriptor: "wpkh(tprv8ZgxMBicQKsPf2qfrEygW6fdYseJDDrVnDv26PH5BHdvSuG6ecCbHqLVof9yZcMoM31z9ur3tTYbSnr1WBqbGX97CbXcmp5H6qeMpyvx35B/84h/1h/0h/0/*)",
            network: Network.testnet
        )
//        let wallet = try Wallet.newNoPersist(
//            descriptor: descriptor,
//            changeDescriptor: nil,
//            network: .testnet
//        )
//        let esploraClient = EsploraClient(url: "https://mempool.space/testnet/api")
//        let update = try esploraClient.fullScan(
//            wallet: wallet,
//            stopGap: 10,
//            parallelRequests: 1
//        )
//        try wallet.applyUpdate(update: update)
//
//        XCTAssertGreaterThan(wallet.getBalance().total, UInt64(0), "Wallet must have positive balance, please add funds")
//
//        let recipient: Address = try Address(address: "tb1qrnfslnrve9uncz9pzpvf83k3ukz22ljgees989", network: .testnet)
//        let psbt: PartiallySignedTransaction = try TxBuilder()
//            .addRecipient(script: recipient.scriptPubkey(), amount: 4200)
//            .feeRate(feeRate: FeeRate.fromSatPerVb(satPerVb: 2.0))
//            .finish(wallet: wallet)
//
//        print(psbt.serialize())
//        XCTAssertTrue(psbt.serialize().hasPrefix("cHNi"), "PSBT should start with cHNI")
    }

    func testComplexTxBuilder() throws {
        let descriptor = try Descriptor(
            descriptor: "wpkh(tprv8ZgxMBicQKsPf2qfrEygW6fdYseJDDrVnDv26PH5BHdvSuG6ecCbHqLVof9yZcMoM31z9ur3tTYbSnr1WBqbGX97CbXcmp5H6qeMpyvx35B/84h/1h/0h/0/*)",
            network: Network.testnet
        )
        let changeDescriptor = try Descriptor(
            descriptor: "wpkh(tprv8ZgxMBicQKsPf2qfrEygW6fdYseJDDrVnDv26PH5BHdvSuG6ecCbHqLVof9yZcMoM31z9ur3tTYbSnr1WBqbGX97CbXcmp5H6qeMpyvx35B/84h/1h/0h/1/*)",
            network: Network.testnet
        )
//        let wallet = try Wallet.newNoPersist(
//            descriptor: descriptor,
//            changeDescriptor: changeDescriptor,
//            network: .testnet
//        )
//        let esploraClient = EsploraClient(url: "https://mempool.space/testnet/api")
//        let update = try esploraClient.fullScan(
//            wallet: wallet,
//            stopGap: 10,
//            parallelRequests: 1
//        )
//        try wallet.applyUpdate(update: update)
//
//        XCTAssertGreaterThan(wallet.getBalance().total, UInt64(0), "Wallet must have positive balance, please add funds")
//
//        let recipient1: Address = try Address(address: "tb1qrnfslnrve9uncz9pzpvf83k3ukz22ljgees989", network: .testnet)
//        let recipient2: Address = try Address(address: "tb1qw2c3lxufxqe2x9s4rdzh65tpf4d7fssjgh8nv6", network: .testnet)
//        let allRecipients: [ScriptAmount] = [
//            ScriptAmount(script: recipient1.scriptPubkey(), amount: 4200),
//            ScriptAmount(script: recipient2.scriptPubkey(), amount: 4200)
//        ]
//
//        let psbt: PartiallySignedTransaction = try TxBuilder()
//            .setRecipients(recipients: allRecipients)
//            .feeRate(feeRate: FeeRate.fromSatPerVb(satPerVb: 4.0))
//            .changePolicy(changePolicy: ChangeSpendPolicy.changeForbidden)
//            .enableRbf()
//            .finish(wallet: wallet)
//
//        try! wallet.sign(psbt: psbt)
//
//        XCTAssertTrue(psbt.serialize().hasPrefix("cHNi"), "PSBT should start with cHNI")
    }
}