Merge #1785: test(wallet): small cleanups to test_wallet_transactions_relevant

6346536 test(wallet): small cleanups to test_wallet_transactions_relevant (Steve Myers)

Pull request description:

  ### Description

  This cleans up the `test_wallet_transactions_relevant` test based on suggestions that didn't make it into #1779.

  ### Notes to the reviewers

  Also included a small use cleanup in wallet/mod.

  ### Changelog notice

  None.

  ### Checklists

  #### All Submissions:

  * [x] I've signed all my commits
  * [x] I followed the [contribution guidelines](https://github.com/bitcoindevkit/bdk/blob/master/CONTRIBUTING.md)
  * [x] I ran `cargo fmt` and `cargo clippy` before committing

ACKs for top commit:
  luisschwab:
    ACK 6346536
  ValuedMammal:
    ACK 6346536

Tree-SHA512: f9604518d2b9bb5614385a053efb03d53311f359626d45270f3648209ab0e31ba966995f842fff1c35f0c83848c61f0976f91524a3f457c6cd85e3f0929f4a77

Author: ValuedMammal

crates/wallet/src/wallet/mod.rs

@@ -19,7 +19,6 @@ use alloc::{
     sync::Arc,
     vec::Vec,
 };
-use chain::Indexer;
 use core::{cmp::Ordering, fmt, mem, ops::Deref};
 
 use bdk_chain::{
@@ -32,7 +31,7 @@ use bdk_chain::{
     },
     tx_graph::{CalculateFeeError, CanonicalTx, TxGraph, TxUpdate},
     BlockId, ChainPosition, ConfirmationBlockTime, DescriptorExt, FullTxOut, Indexed,
-    IndexedTxGraph, Merge,
+    IndexedTxGraph, Indexer, Merge,
 };
 use bitcoin::{
     absolute,

crates/wallet/tests/wallet.rs

@@ -4,7 +4,7 @@ use std::sync::Arc;
 
 use anyhow::Context;
 use assert_matches::assert_matches;
-use bdk_chain::{BlockId, ChainPosition, ConfirmationBlockTime, TxUpdate};
+use bdk_chain::{BlockId, ChainPosition, ConfirmationBlockTime};
 use bdk_wallet::coin_selection::{self, LargestFirstCoinSelection};
 use bdk_wallet::descriptor::{calc_checksum, DescriptorError, IntoWalletDescriptor};
 use bdk_wallet::error::CreateTxError;
@@ -4254,22 +4254,13 @@ fn test_wallet_transactions_relevant() {
     // add not relevant transaction to test wallet
     let (other_external_desc, other_internal_desc) = get_test_tr_single_sig_xprv_and_change_desc();
     let (other_wallet, other_txid) = get_funded_wallet(other_internal_desc, other_external_desc);
-    let other_tx_node = other_wallet.get_tx(other_txid).unwrap().tx_node;
-    let other_tx_confirmationblocktime = other_tx_node.anchors.iter().last().unwrap();
-    let other_tx_update = TxUpdate {
-        txs: vec![other_tx_node.tx],
-        txouts: Default::default(),
-        anchors: [(*other_tx_confirmationblocktime, other_txid)].into(),
-        seen_ats: [(other_txid, other_tx_confirmationblocktime.confirmation_time)].into(),
-    };
     let test_wallet_update = Update {
-        last_active_indices: Default::default(),
-        tx_update: other_tx_update,
-        chain: None,
+        tx_update: other_wallet.tx_graph().clone().into(),
+        ..Default::default()
     };
     test_wallet.apply_update(test_wallet_update).unwrap();
 
-    // verify transaction from other wallet was added but is not it relevant transactions list.
+    // verify transaction from other wallet was added but is not in relevant transactions list.
     let relevant_tx_count_after = test_wallet.transactions().count();
     let full_tx_count_after = test_wallet.tx_graph().full_txs().count();
     let canonical_tx_count_after = test_wallet