Commit graph

236 commits

Author SHA1 Message Date
fanquake
37a16ffd70
refactor: fix clang-tidy named args usage 2022-04-04 09:01:19 +01:00
MarcoFalke
98e9d8e8e2
Merge bitcoin/bitcoin#23732: refactor: Remove gArgs from bdb.h and sqlite.h
39b1763730 Replace use of `ArgsManager` with `DatabaseOptions` (Kiminuo)

Pull request description:

  Contributes to #21005.

  The goal of this PR is to remove `gArgs` from database classes (i.e. `bdb.h` and `sqlite.h`) so that they can be tested without relying on `gArgs` in tests.

  Notes:

  * My goal is to enable unit-testing without relying on `gArgs` as much as possible. Global variables are hard to reason about which in turn makes it slightly harder to contribute to this codebase. When the compiler does the heavy lifting for us and allows us only to construct an object (or call a method) with valid parameters, we may also save some time in code reviews. The cost for this is passing an argument which is not for free but the cost is very miniscule compared to benefits, I think.
      * GUI code is an exception because it seems fine to have `gArgs` there so I don't plan to make changes in `src/qt` folder, for example.
  * My approach to removal of `gArgs` uses is moving from lower levels to upper ones and pass `ArgsManager` as an argument as needed. The approach is very similar to what #20158.

ACKs for top commit:
  achow101:
    ACK 39b1763730
  ryanofsky:
    Code review ACK 39b1763730. Just the two small ReadDatabaseArgs and Berkeley open changes that were discussed since the last review

Tree-SHA512: aa066b314db593e46c18698fe8cdd500f558b405dc04e4a9a3ff57b52b5b3a81a6cb090e0e661785d1d02c1bf18958c1f4cd715ff233aab63381e3f80960622d
2022-03-24 07:40:42 +01:00
Kiminuo
39b1763730 Replace use of ArgsManager with DatabaseOptions
Co-authored-by: Russell Yanofsky <russ@yanofsky.org>
2022-03-16 08:26:28 +01:00
laanwj
267917f563
Merge bitcoin/bitcoin#23304: wallet: Derive inactive HD chains in additional places
c4d76c6faa tests: Tests for inactive HD chains (Andrew Chow)
8077862c5e wallet: Refactor TopUp to be able to top up inactive chains too (Andrew Chow)
70134eb34f wallet: Properly set hd chain counters when loading (Andrew Chow)
961b9e4e40 wallet: Parse hdKeypath if key_origin is not available (Andrew Chow)
0652ee73ec Add size check on meta.key_origin.path (Rob Fielding)

Pull request description:

  Currently inactive HD chains are only derived from at the time a key in that chain is found to have been used. However, at that time, the wallet may not be able to derive keys (e.g. it is locked). Currently we would just move on and not derive any new keys, however this could result in missing funds.

  This PR resolves this problem by adding memory only variables to `CHDChain` which track the highest known index. `TopUp` is modified to always try to top up the inactive HD chains, and this process will use the new variables to determine how much to top up. In this way, after an encrypted wallet is unlocked, the inactive HD chains will be topped up and hopefully funds will not be missed.

  Note that because these variables are not persisted to disk (because `CHDChain`s for inactive HD chains are not written to disk), if an encrypted wallet is not unlocked in the same session as a key from an inactive chain is found to be used, then it will not be topped up later unless more keys are found.

  Additionally, wallets which do not have upgraded key metadata will not derive any keys from inactive HD chains. This is resolved by using the derivation path string in `CKeyMetadata.hdKeypath` to determine what indexes to derive.

ACKs for top commit:
  laanwj:
    Code review ACK c4d76c6faa

Tree-SHA512: b2b572ad7f1b1b2847edece09f7583543d63997e18ae32764e5a27ad608dd64b9bdb2d84ea27137894e986a8e82f047a3dba9c8015b74f5f179961911f0c4095
2022-03-02 09:35:07 +01:00
Hennadii Stepanov
7f3a6a9495
wallet: Add external-signer-support specific error message 2022-02-20 21:04:23 +02:00
Kiminuo
41d7166c8a
refactor: replace boost::filesystem with std::filesystem
Warning: Replacing fs::system_complete calls with fs::absolute calls
in this commit may cause minor changes in behaviour because fs::absolute
no longer strips trailing slashes; however these changes are believed to
be safe.

Co-authored-by: Russell Yanofsky <russ@yanofsky.org>
Co-authored-by: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com>
2022-02-03 18:35:52 +08:00
Russell Yanofsky
f7086fd8ff Add src/wallet/* code to wallet:: namespace 2022-01-06 22:14:16 -05:00
Hennadii Stepanov
f47dda2c58
scripted-diff: Bump copyright headers
-BEGIN VERIFY SCRIPT-
./contrib/devtools/copyright_header.py update ./
-END VERIFY SCRIPT-

Commits of previous years:
* 2020: fa0074e2d8
* 2019: aaaaad6ac9
2021-12-30 19:36:57 +02:00
Andrew Chow
70134eb34f wallet: Properly set hd chain counters when loading
When build CHDChains out of CKeyMetadata, the chain counters are
actually 1 based, not 0 based, so 1 must be added to each index.
2021-12-08 11:22:29 -05:00
Russell Yanofsky
d8ee8f3cd3 refactor: Make CWalletTx sync state type-safe
Current CWalletTx state representation makes it possible to set
inconsistent states that won't be handled correctly by wallet sync code
or serialized & deserialized back into the same form.

For example, it is possible to call setConflicted without setting a
conflicting block hash, or setConfirmed with no transaction index. And
it's possible update individual m_confirm and fInMempool data fields
without setting an overall consistent state that can be serialized and
handled correctly.

Fix this without changing behavior by using std::variant, instead of an
enum and collection of fields, to represent sync state, so state
tracking code is safer and more legible.

This is a first step to fixing state tracking bugs
https://github.com/bitcoin-core/bitcoin-devwiki/wiki/Wallet-Transaction-Conflict-Tracking,
by adding an extra margin of safety that can prevent new bugs from being
introduced as existing bugs are fixed.
2021-11-15 09:11:44 -05:00
Andrew Chow
a52f1d1340 walletdb: Use SQLiteDatabase for mock wallet databases
Default to SQLiteDatabase instead of BerkeleyDatabase for
CreateDummyWalletDatabase. Most tests already use descriptor wallets and
the mock db doesn't really matter for tests. The tests where it does
matter will make the db directly.
2021-10-22 17:49:43 -04:00
Russell Yanofsky
6544ea5035 refactor: Block unsafe fs::path std::string conversion calls
There is no change in behavior. This just helps prepare for the
transition from boost::filesystem to std::filesystem by avoiding calls
to methods which will be unsafe after the transaction to std::filesystem
to due lack of a boost::filesystem::path::imbue equivalent and inability
to set a predictable locale.

Co-authored-by: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com>
Co-authored-by: Kiminuo <kiminuo@protonmail.com>
Co-authored-by: MarcoFalke <falke.marco@gmail.com>
2021-10-05 11:10:47 -04:00
W. J. van der Laan
46b4937bc1
Merge bitcoin/bitcoin#23142: Return false on corrupt tx rather than asserting
0ab4c3b272 Return false on corrupt tx rather than asserting (Samuel Dobson)

Pull request description:

  Takes up #19793

  Rather than asserting, we log an error and return CORRUPT so that the user is informed. This type of error isn't critical so it isn't worth `assert`ing.

ACKs for top commit:
  achow101:
    ACK 0ab4c3b272
  laanwj:
    Code review ACK 0ab4c3b272
  ryanofsky:
    Code review ACK 0ab4c3b272. There may be room for more improvements later like better error messages or easier recovery options, but changing from an assert to an error seems like a clear improvement, and this seems to avoid all the pitfalls of the last PR that tried this.

Tree-SHA512: 4a1a412e7c473d176c4e09123b85f390a6b0ea195e78d28ebd50b13814b7852f8225a172511a2efb6affb555b11bd4e667c19eb8c78b060c5444b62f0fae5f7a
2021-10-01 10:32:10 +02:00
Samuel Dobson
8615507a4e scripted-diff: rename DBErrors::RESCAN_REQUIRED to NEED_RESCAN
-BEGIN VERIFY SCRIPT-
git grep -l 'RESCAN_REQUIRED' src | xargs sed -i 's/RESCAN_REQUIRED/NEED_RESCAN/g'
-END VERIFY SCRIPT-
2021-10-01 11:02:32 +13:00
Samuel Dobson
0ab4c3b272 Return false on corrupt tx rather than asserting
Co-authored-by: Russell Yanofsky <russ@yanofsky.org>
Co-authored-by: Andrew Chow <achow101-github@achow101.com>
2021-09-30 22:36:25 +13:00
Samuel Dobson
f963b0fa8c Corrupt wallet tx shouldn't trigger rescan of all wallets 2021-09-30 12:06:27 +13:00
Samuel Dobson
c52789365e Allow locked UTXOs to be store in the wallet database 2021-09-25 23:50:06 +12:00
Russell Yanofsky
b11a195ef4 refactor: Detach wallet transaction methods (followup for move-only)
Followup to commit "MOVEONLY: CWallet transaction code out of
wallet.cpp/.h" that detaches and renames some CWalletTx methods, making
into them into standalone functions or CWallet methods instead.

There are no changes in behavior and no code changes that aren't purely
mechanical. It just gives spend and receive functions more consistent
names and removes the circular dependencies added by the earlier
MOVEONLY commit.

There are also no comment or documentation changes. Removed comments
from transaction.h are just migrated to spend.h, receive.h, and
wallet.h.
2021-09-01 02:22:58 -05:00
Russell Yanofsky
62a09a3077 refactor: remove ::vpwallets and related global variables
Move global wallet variables to WalletContext struct
2021-08-17 04:05:15 -04:00
fanquake
045bb06ebd
Merge bitcoin/bitcoin#19651: wallet: importdescriptors update existing
3efaf83c75 wallet: deactivate descriptor (S3RK)
6737d9655b test: wallet importdescriptors update existing (S3RK)
586f1d53d6 wallet: maintain SPK consistency on internal flag change (S3RK)
f1b7db1474 wallet: don't mute exceptions in importdescriptors (S3RK)
bf68ebc1cd wallet: allow to import same descriptor twice (S3RK)

Pull request description:

  Rationale: allow updating existing descriptors with `importdescriptors` command.

  Currently if you run same `importdescriptors` command twice with a descriptor containing private key you will get very confusing error — `Missing required fields`. What happens is that Wallet tries to write imported private key to the disk, but it exists already so we get `DB_KEYEXIST (-30995)` from BerkelyDB. Please note, that we set `DB_NOOVERWRITE` (I guess not to lose some keys accidentally). The exception is caught in `catch (...)` in rpcdump.cpp with a generic error.

  With this PR if a descriptor is already present than we will update its activeness, internalness, label, range and next_index.
  For the range only expansion is allowed (range start can only decrease, range end increase).

ACKs for top commit:
  achow101:
    re-ACK 3efaf83c75
  meshcollider:
    Code review ACK 3efaf83c75
  jonatack:
    Light ACK 3efaf83c75 per `git range-diff a000cb0 5d96704 3efaf83` and as a sanity check, re-debug-built on debian with gcc 10.2.1 and clang 11, ran wallet_importdescriptors.py

Tree-SHA512: 122c4b621d64ec8a3b625f3aed9f01a2b5cbaf2029ad0325b5ff38d67fff5cd35324335fabe2dd5169548b01b267c81be6ae0f5c834342f3d5f6eeed515c4843
2021-07-01 10:06:56 +08:00
S3RK
3efaf83c75 wallet: deactivate descriptor 2021-06-28 21:44:50 +02:00
Andrew Chow
74fede3b8b wallet: Upgrade existing descriptor caches
Add functions to upgrade existing descriptor caches to support the use
of last hardened xpub caching.
2021-06-24 13:49:22 -04:00
Andrew Chow
432ba9e543 wallet: Store last hardened xpub cache 2021-06-24 13:49:22 -04:00
Andrew Chow
cacc391098 Move DescriptorCache writing to WalletBatch
Instead of adhoc writing of the items in DescriptorCache, move it all
into WalletBatch.
2021-06-24 13:49:22 -04:00
Andrew Chow
e60cd26ad4 Do not load external signers wallets when unsupported
When external signer support is not compiled, do not load external
signer wallets.
2021-06-06 13:52:27 -04:00
MarcoFalke
ffff0d0442
refactor: Switch serialize to uint8_t (1/n) 2021-05-31 14:56:17 +02:00
fanquake
ebc4ab721b
refactor: post Optional<> removal cleanups 2021-03-17 14:56:20 +08:00
fanquake
57e980d13c
scripted-diff: remove Optional & nullopt
-BEGIN VERIFY SCRIPT-
git rm src/optional.h

sed -i -e 's/Optional</std::optional</g' $(git grep -l 'Optional<' src)

sed -i -e 's/{nullopt}/{std::nullopt}/g' $(git grep -l 'nullopt' src)
sed -i -e 's/ nullopt;/ std::nullopt;/g' $(git grep -l 'nullopt' src)
sed -i -e 's/ nullopt)/ std::nullopt)/g' $(git grep -l 'nullopt' src)
sed -i -e 's/(nullopt)/(std::nullopt)/g' $(git grep -l 'nullopt' src)
sed -i -e 's/ nullopt,/ std::nullopt,/g' $(git grep -l 'nullopt' src)
sed -i -e 's/? nullopt :/? std::nullopt :/g' $(git grep -l 'nullopt' src)
sed -i -e 's/: nullopt}/: std::nullopt}/g' $(git grep -l 'nullopt' src)

sed -i -e '/optional.h \\/d' src/Makefile.am

sed -i -e '/#include <optional.h>/d' src/test/fuzz/autofile.cpp src/test/fuzz/buffered_file.cpp src/test/fuzz/node_eviction.cpp

sed -i -e 's/#include <optional.h>/#include <optional>/g' $(git grep -l '#include <optional.h>' src)
-END VERIFY SCRIPT-
2021-03-15 10:41:30 +08:00
fanquake
3ba2840e7e
scripted-diff: remove MakeUnique<T>()
-BEGIN VERIFY SCRIPT-
git rm src/util/memory.h
sed -i -e 's/MakeUnique/std::make_unique/g' $(git grep -l MakeUnique src)
sed -i -e '/#include <util\/memory.h>/d' $(git grep -l '#include <util/memory.h>' src)
sed -i -e '/util\/memory.h \\/d' src/Makefile.am
-END VERIFY SCRIPT-
2021-03-11 13:45:14 +08:00
Sjors Provoost
9305862f71
wallet: load flags before everything else 2021-02-09 19:01:15 +01:00
Ikko Ashimine
1112035d32
doc: fix various typos
Co-authored-by: Peter Yordanov <ppyordanov@yahoo.com>
2021-01-04 12:31:31 +08:00
Russell Yanofsky
d70dc89e78 refactor: Consolidate redundant wallet database path and exists functions
No change in behavior. Just remove a little bit of code, reduce macro usage,
remove duplicative functions, and make BDB and SQLite implementations more
consistent with each other.
2020-12-04 11:03:28 -04:00
fanquake
80d4231e16
Merge #19980: refactor: Some wallet cleanups
9b74461fa2 refactor: Assert before dereference in CWallet::GetDatabase (João Barbosa)
021feb3187 refactor: Drop redudant CWallet::GetDBHandle (João Barbosa)

Pull request description:

ACKs for top commit:
  achow101:
    Code Review ACK 9b74461fa2
  meshcollider:
    utACK 9b74461fa2
  ryanofsky:
    Code review ACK 9b74461fa2. Changes since last review: rebasing due to conflict, dropping wallet path commit c6a5cd7a64c78b162f545a3467d0fea7dcaadfcc as suggested in discussion, making GetDatabase() const in the earlier commit. Giving more descriptive title like

Tree-SHA512: 68cf3b5e9fe0acb3a5cd081086629989f213f1904cc344e5775767b56759a7d905b1e1c303afbe40f172ff81bf07f3719b59d8f6ec2de3fdd53cd0e2d220fb25
2020-12-02 08:23:00 +08:00
Wladimir J. van der Laan
86bf3ae3b5
Merge #20202: wallet: Make BDB support optional
d52f502b1e Fix mock SQLiteDatabases (Andrew Chow)
99309ab3e9 Allow disabling BDB in configure with --without-bdb (Andrew Chow)
ee47f11f73 GUI: Force descriptor wallets when BDB is not compiled (Andrew Chow)
71e40b33bd RPC: Require descriptors=True for createwallet when BDB is not compiled (Andrew Chow)
6ebc41bf9c Enforce salvage is only for BDB wallets (Andrew Chow)
a58b719cf7 Do not compile BDB things when USE_BDB is defined (Andrew Chow)
b33af48210 Include wallet/bdb.h where it is actually being used (Andrew Chow)

Pull request description:

  Adds a `--without-bdb` option to `configure` which disables the compilation of the BDB stuff. Legacy wallets will not be created when BDB is not compiled. A legacy-sqlite wallet can be loaded, but we will not create them.

  Based on #20156 to resolve the situation where both `--without-sqlite` and `--without-bdb` are provided. In that case, the wallet is disabled and `--disable-wallet` is effectively set.

ACKs for top commit:
  laanwj:
    Code review ACK d52f502b1e

Tree-SHA512: 5a92ba7a542acc2e27003e9d4e5940e0d02d5c1f110db06cdcab831372bfd83e8d89c269caff31dd5bff062c1cf5f04683becff12bd23a33be731676f346553d
2020-11-23 10:30:01 +01:00
Wladimir J. van der Laan
9ab9665c74
Merge #15710: wallet: Catch ios_base::failure specifically
7486e2771e Tests: Unit test related to WalletDB ReadKeyValue (Bushstar)
32def8d1c2 Catch ios_base::failure specifically (Peter Bushnell)

Pull request description:

  In https://github.com/bitcoin/bitcoin/pull/2950 a hash of the pubkey and private was added to speed up key import, this was made backwards compatible by reading the hash in a try block with an ellipses catch all in case the hash was not present.

  CDataStream::read() specifically throws std::ios_base::failure, backwards compatibility expects only that error to be thrown, if something else gets thrown we should not be catching it. The change in this commit is to catch that exception only. If any other exception is thrown other than std::ios_base::failure it will be caught by the wider try block and an error written to the log and/or console.

  CDataStream::read() throwing std::ios_base::failure.
  2c364fde42/src/streams.h (L191)

  Wider catch statements that pick up all others exceptions other than ios_base::failure.
  2c364fde42/src/wallet/walletdb.cpp (L425)

  2c364fde42/src/wallet/walletdb.cpp (L430)

ACKs for top commit:
  laanwj:
    Code review ACK 7486e2771e

Tree-SHA512: 5364bf935af8ec603bf5b8fef8c23b5cdaa4fe3506090cff988413221f2eaa99f7a91929afb42a35f8881ce2328744a0d32052da51ca0a5b2e65b6809e97f604
2020-11-19 12:32:48 +01:00
Andrew Chow
a58b719cf7 Do not compile BDB things when USE_BDB is defined 2020-11-18 11:56:08 -05:00
João Barbosa
021feb3187 refactor: Drop redudant CWallet::GetDBHandle 2020-11-07 11:35:20 +00:00
Luke Dashjr
7b54d768e1 Make sqlite support optional (compile-time) 2020-10-20 13:44:43 +00:00
Andrew Chow
ac38a87225 Determine wallet file type based on file magic 2020-10-14 11:28:18 -04:00
Russell Yanofsky
7bf6dfbb48 wallet: Remove path checking code from bitcoin-wallet tool
This commit does not change behavior except for error messages which now
include more complete information.
2020-09-03 12:24:32 -04:00
Russell Yanofsky
3c815cfe54 wallet: Remove Verify and IsLoaded methods
Checks are now consolidated in MakeBerkeleyDatabase function instead of
happening in higher level code.

This commit does not change behavior except for error messages which now
include more complete information.
2020-09-03 12:24:32 -04:00
Russell Yanofsky
b5b414151a wallet: Add MakeDatabase function
New function is not currently called but will be called in upcoming commits. It
moves database path checking, and existence checking, and already-loaded
checking, and verification into a single function so this logic does not need
to be repeated all over higher level wallet code, and so higher level code does
not need to change when SQLite support is added in
https://github.com/bitcoin/bitcoin/pull/19077. This also lets higher level
wallet code make fewer assumptions about the contents of wallet directories.

This commit just adds the new function and does not change behavior in any way.
2020-09-03 12:24:32 -04:00
fanquake
68f0ab26bc
Merge #19805: wallet: Avoid deserializing unused records when salvaging
0bbe26a1af wallet: filter for keys only before record deser in salvage (Andrew Chow)
544e12a4e8 walletdb: Add KeyFilterFn to ReadKeyValue (Andrew Chow)

Pull request description:

  When salvaging a wallet, the only things that matter are the private keys. It is not necessary to attempt to deserialize any other records, especially if those records are corrupted too.

  This PR adds a `KeyFilterFn` function callback to `ReadKeyValue` that salvage uses to filter for only the records that it wants. Of course doing it this way also lets us do other filters in the future from other places should we so desire.

ACKs for top commit:
  ryanofsky:
    Code review ACK 0bbe26a1af. Looks great! This should make the recovery code more robust. Normally it'd be good to have a test case for the problem this fixes, but Marco already wrote one in #19078, so I think we're covered
  laanwj:
    Code review ACK 0bbe26a1af

Tree-SHA512: 8e3ee283a22a79273915711c4fb751f3c9b02ce94e6bf08dc468f1cfdf9fac35c693bbfd2435ce43c3a06c601b9b0a67e209621f6814bedfe3bc7a7ccc37bb01
2020-09-03 12:47:01 +08:00
Andrew Chow
3340dbadd3 Remove -zapwallettxes
-zapwallettxes is made a hidden option to inform users that it is
removed and they should be using abandontransaction to do the stuck
transaction thing.
2020-08-31 12:39:19 -04:00
Andrew Chow
544e12a4e8 walletdb: Add KeyFilterFn to ReadKeyValue
Add a KeyFilterFn callback to ReadKeyValue which allows the caller to
specify which types to actually deserialize. A KeyFilterFn takes the
type as the parameter and returns a bool indicating whether
deserialization should continue.
2020-08-25 13:23:40 -04:00
Pieter Wuille
77c507358b Make Hash[160] consume range-like objects 2020-07-30 13:57:54 -07:00
Andrew Chow
0103d6434e Introduce DummyDatabase and use it in the tests 2020-07-29 12:28:30 -04:00
Andrew Chow
d416ae560e walletdb: Introduce WalletDatabase abstract class
Make WalletDatabase actually an abstract class and not just a typedef
for BerkeleyDatabase. Have BerkeleyDatabase inherit this class.
2020-07-14 11:07:16 -04:00
MarcoFalke
a924f61cae
Merge #19325: wallet: Refactor BerkeleyDatabase to introduce DatabaseBatch abstract class
b82f0ca4d5 walletdb: Add MakeBatch function to BerkeleyDatabase and use it (Andrew Chow)
eac9200814 walletdb: Refactor DatabaseBatch abstract class from BerkeleyBatch (Andrew Chow)

Pull request description:

  In order to support alternative database systems, we need to have a generic `Batch` class. This PR adds a `DatabaseBatch` abstract class which is implemented by `BerkeleyBatch`. `DatabaseBatch` is now the class that is used by `WalletBatch` to interact with the database. To be able to get the correct type of `DatabaseBatch`, `BerkeleyDatabase` now has a `MakeBatch` function which returns a newly constructed `std::unique_ptr<DatabaseBatch>`. For `BerkeleyDatabase`, that will be `std::unique_ptr<BerkeleyBatch>`.

  The `Read`, `Write`, `Erase`, and `Exists` template functions are moved from `BerkeleyBatch`.

  Part of #18971

  Requires #19308 and #19324

ACKs for top commit:
  Sjors:
    re-utACK b82f0ca4d5
  MarcoFalke:
    ACK b82f0ca4d5 🌘
  meshcollider:
    LGTM, utACK b82f0ca4d5

Tree-SHA512: 6d2d41631c0983391dbecd702e881c6775b155c90b275df97f7157e42608ed251744f9d7ce5173d02a6c5cc38d90b611880fac7fa635d3d8c4d590681f56ac6a
2020-07-14 16:21:01 +02:00
Samuel Dobson
160800ac10
Merge #19441: walletdb: don't reinitialize desc cache with multiple cache entries
a66a7a1a70 walletdb: don't reinitialize desc cache with multiple cache entries (Andrew Chow)

Pull request description:

  When loading descriptor caches, we would accidentally reinitialize the descriptor cache when seeing that one already exists. This should have only been initializing the cache when one does not exist. However this code itself is unnecessary as the act of looking up the cache to add to it will initialize it if it didn't already exist.

  This issue could be hit by trying to load a wallet that had imported a multisig descriptor. The wallet would fail to load.

  A test has been added to wallet_importdescriptors.py to catch this case. Another test case has also been added to check that loading a wallet with only single key descriptors works.

ACKs for top commit:
  hugohn:
    tACK [a66a7a1](a66a7a1a70)
  jonatack:
    ACK a66a7a1a70
  meshcollider:
    Code review ACK a66a7a1a70

Tree-SHA512: 3df746421a008708eaa3bbbdd12b9ddd3e2ec111d54625a212dca7414b971cc1f6e2b1757b3232c31a2f637d1b1ef43bf3ffa4ac4216646cf1e92db5f79954f1
2020-07-12 00:14:27 +12:00