// assertProperBalance asserts than the total value of the unspent outputs // within the wallet are *exactly* amount. If unable to retrieve the current // balance, or the assertion fails, the test will halt with a fatal error. func assertProperBalance(t *testing.T, lw *lnwallet.LightningWallet, numConfirms int32, amount int64) { balance, err := lw.ConfirmedBalance(numConfirms, false) if err != nil { t.Fatalf("unable to query for balance: %v", err) } if balance != btcutil.Amount(amount*1e8) { t.Fatalf("wallet credits not properly loaded, should have 40BTC, "+ "instead have %v", balance) } }
func loadTestCredits(miner *rpctest.Harness, w *lnwallet.LightningWallet, numOutputs, btcPerOutput int) error { // Using the mining node, spend from a coinbase output numOutputs to // give us btcPerOutput with each output. satoshiPerOutput := int64(btcPerOutput * 1e8) addrs := make([]btcutil.Address, 0, numOutputs) for i := 0; i < numOutputs; i++ { // Grab a fresh address from the wallet to house this output. walletAddr, err := w.NewAddress(lnwallet.WitnessPubKey, false) if err != nil { return err } script, err := txscript.PayToAddrScript(walletAddr) if err != nil { return err } addrs = append(addrs, walletAddr) output := &wire.TxOut{satoshiPerOutput, script} if _, err := miner.CoinbaseSpend([]*wire.TxOut{output}); err != nil { return err } } // TODO(roasbeef): shouldn't hardcode 10, use config param that dictates // how many confs we wait before opening a channel. // Generate 10 blocks with the mining node, this should mine all // numOutputs transactions created above. We generate 10 blocks here // in order to give all the outputs a "sufficient" number of confirmations. if _, err := miner.Node.Generate(10); err != nil { return err } // Wait until the wallet has finished syncing up to the main chain. ticker := time.NewTicker(100 * time.Millisecond) expectedBalance := btcutil.Amount(satoshiPerOutput * int64(numOutputs)) out: for { select { case <-ticker.C: balance, err := w.ConfirmedBalance(1, false) if err != nil { return err } if balance == expectedBalance { break out } } } ticker.Stop() return nil }