fab9095d40 qa: Windows fixups for functional tests (MarcoFalke)
Pull request description:
Just two minor fixups to have less errors when the tests run on native windows.
* Strip whitespace from lines when reading from a notification file
* Instead of clumsily creating a file with weird permissions, just create a folder for the same effect in `mempool_persist.py`
Tree-SHA512: 48a8b439f14ab9b44c5cd228cd03105e8613e703e3c2951cdf724931bc95172a9ad9bfe69fc23e73dd91b058c1352263c0ac6e8de2ceb0ebf804c8ff52bba394
If a cookie file exists in a datadir prior to node startup, it must have
been leftover from a prior unclean shutdown. As bitcoind will overwrite
it anyway, delete it before starting up to prevent the test framework
from inadvertently trying to connect using stale credentials.
c9cce0a Tests: Add Metaclass for BitcoinTestFramework (Will Ayd)
Pull request description:
BitcoinTestFramework instructs developers in its docstring to override
`set_test_params` and `run_test` in subclasses while being sure NOT to
override `__init__` and `main` . This change adds a metaclass to ensure
that developers adhere to that protocol, raising a ``TypeError`` in
instances where they have not.
closes#12835
Tree-SHA512: 5a47a7ead1f18361138cad4374747c4a8f29d25506f7b2c2a8c1c966a0b65e5ccf7317f9a078df8680fdab5d3fb71fee46a159c9f381878a3683c1e9f874abbe
2b2b96cd45 Use std::bind instead of boost::bind to re-lock the wallet (Suhas Daftuar)
662d19ff72 [rpcwallet] Clamp walletpassphrase value at 100M seconds (Suhas Daftuar)
Pull request description:
Larger values seem to trigger a bug on macos+libevent (resulting in the rpc server stopping).
Tree-SHA512: 890f3b641f6c586e2f8f629a9d23bca6ceb8b237b285561aad488cb7adf941a21177d3129d0c2b8293c0a673cd8e401957dbe2b6b3b7c8c4e991bb411d260102
e36a0c0 [qa] Ensure bitcoind processes are cleaned up when tests end (Suhas Daftuar)
Pull request description:
When tests fail (such as due to a bug in the test, race condition, etc), it's possible that we could follow code paths that bypass our normal node shutdown that occurs in `TestNode.stop_node`. Add a destructor to `TestNode` that cleans this up.
Tree-SHA512: 72e04bc21462ebd0cb346fd1fe0540da454acfbad41923a0b06ea2317e9045b68e58f9adb02d8200891aca89a9d03a022eb72282aeb31a3b3afe7c6843a4b450
8dd547d82b Adding logging for loop iteration level in p2p_sendheaders.py (ccdle12)
Pull request description:
PR for #12453
New contributor looking at mainly the 'good first issues'.
From my understanding of the issue:
* Track the iteration level of loop when test fails in Travis CI
Further clarification on the issue would be greatly appreciated to narrow down what can be fixed or updated.
Tree-SHA512: 228524aad54c09979d990a0fc6818e13a11e1ab5e78b606b892e897bba7b1e09bf25447feb631049e45ac017eeb61fbf1c1f11e8bd5103648f976a05099ba9f9
55efc1f [tests] simplify binary and hex response parsing in interface_rest.py (Roman Zeyde)
ade5964 [tests] only use 2 nodes in interface_rest.py (John Newbery)
ad00fbe [tests] refactor interface_rest.py to avoid code repetition (John Newbery)
7a3181a [tests] Make json request building more consistent in interface_rest.py (John Newbery)
3fd4490 [tests] improve logging and documentation in interface_rest.py (John Newbery)
abf190e [tests] fix flake8 warnings in interface_rest.py test (John Newbery)
Pull request description:
Following the comment at https://github.com/bitcoin/bitcoin/pull/12717#pullrequestreview-106189117.
Tree-SHA512: b55560f0d8f3069584f5a2398285483a0a23514b2b2bd2c1ced2db1cb30dc24f60f720d0fa4de30259f7918d3178d94680ae9321649544d1d04d687a2e672559
BitcoinTestFramework instructs developers in its docstring to override
`set_test_params` and `run_test` in subclasses while being sure NOT to
override `__init__` and `main` . This change adds a metaclass to ensure
that developers adhere to that protocol, raising a ``TypeError`` in
instances where they have not.
closes#12835
9c92c8c827 [tests] Remove Comparison Test Framework (John Newbery)
e80c640d78 [tests] Remove bip9-softforks.py (John Newbery)
Pull request description:
Builds on #11772, #11773 and #11817. Please review those PRs first.
Final step in #10603.
- First commit removes bip9-softforks.py. bip9-sofforks.py was intended to be a generic test for versionbits deployments. However, it only tests CSV activation and was not updated to test segwit activation. CSV activation is tested by bip68-112-113-p2p.py, so this test is duplicated effort. Rather than try to update it to use the BitcoinTestFramework, just remove it. (see https://github.com/btcdrak/bitcoin/pull/8 for previous discussion around the redundancy of bip9-softforks.py)
- Second commit removes the now unused BitcoinComparisonFramework class and the comptool and blockstore modules.
Tree-SHA512: 4bb7196d521048b3b8ba95c87dde73005a1ac73d29ccbb869f11ce9a71089686e7eacd7335337853041dfbd3a5b110172b105adbada58779814d4db22b1376f5
faace13868 qa: Match full plain text by default (MarcoFalke)
Pull request description:
Instead of escaping all full plain text error strings, just compare their strings by default.
Tree-SHA512: 42e28f55105eb947ac6af6ce4056f0ec0f701d85f1c2a38b35ab777bbdf2296bdb79639c345621b8adc03a98b28c7630ded9a67b8b04a48e2c3a49d598ecdcd7
Changing logs to debug level and format of statment to j == ...
Updating debug statements to include comments when checking for iteration level of i and j
Removing comments above log prints in Part 3
Removing unwanted file
Added log prints in loops in p2p_sendheaders
The new P2PDataStore class was sending full blocks in headers messages,
which meant that calls to send_blocks_and_test() would blow up memory if
called with a large number of blocks. Fix that by only sending headers
in headers messages.
bip9-sofforks.py was intended to be a generic test for versionbits
deployments. However, it only tests CSV activation and was not updated
to test segwit activation. CSV activation is tested by
bip68-112-113-p2p.py, so this test is duplicated effort.
Rather than try to update it to use the BitcoinTestFramework, just
remove it.
b55555d rpc: Add testmempoolaccept (MarcoFalke)
Pull request description:
To check if a single raw transaction makes it into the current transaction pool, one had to call `sendrawtransaction`. However, on success, this adds the transaction to the mempool with no easy way to undo.
The call `testmempoolaccept` is introduced to provide a way to solely check the result without changing the mempool state.
Tree-SHA512: 5afd9311190135cee8fc1f229c7d39bf893f1028f29e28d34f70df820198ff97b4bf86b41cbbd6e6c36a5c30073cefa92d541c74a4939c7a2a6fa283dfd41b63
ea04bf7862 Enable flake8 warning F841 ("local variable 'foo' is assigned to but never used") (practicalswift)
169f3e8637 Remove assigned but never used local variables (practicalswift)
Pull request description:
Remove assigned but never used local variables. Enable Travis checking for unused local variables.
Tree-SHA512: d6052ec9044c5d1f03d874ea3c8addd5a156779213ef9200f89d3ae53230f2fd1691aff405c3dae14178e5ef09912c4432e92f606ef4a5220ed9daa140cdee81
63048ec73d [tests] Test starting bitcoind with -h and -version (John Newbery)
Pull request description:
Test that starting bitcoind/bitcoin-qt with `-h` and `-version` works as expected.
Prompted by https://github.com/bitcoin/bitcoin/pull/10762#commitcomment-28345993, which is a nullpointer dereference triggered by starting bitcoin-qt with `-h`.
On master, this test passes when run over bitcoind, but fails when running over bitcoin-qt. I used xvfb as a virtual frame buffer to test:
```
BITCOIND=/home/ubuntu/bitcoin/src/qt/bitcoin-qt xvfb-run ./feature_help.py --nocleanup
2018-03-30T17:09:37.767000Z TestFramework (INFO): Initializing test directory /tmp/user/1000/testdi4dre13
2018-03-30T17:09:37.767000Z TestFramework (INFO): Start bitcoin with -h for help text
2018-03-30T17:09:37.841000Z TestFramework (ERROR): Assertion failed
Traceback (most recent call last):
File "/home/ubuntu/bitcoin/test/functional/test_framework/test_framework.py", line 126, in main
self.run_test()
File "./feature_help.py", line 25, in run_test
assert_equal(ret_code, 0)
File "/home/ubuntu/bitcoin/test/functional/test_framework/util.py", line 39, in assert_equal
raise AssertionError("not(%s)" % " == ".join(str(arg) for arg in (thing1, thing2) + args))
AssertionError: not(-11 == 0)
2018-03-30T17:09:37.842000Z TestFramework (INFO): Stopping nodes
Traceback (most recent call last):
File "./feature_help.py", line 42, in <module>
HelpTest().main()
File "/home/ubuntu/bitcoin/test/functional/test_framework/test_framework.py", line 149, in main
self.stop_nodes()
File "/home/ubuntu/bitcoin/test/functional/test_framework/test_framework.py", line 273, in stop_nodes
node.stop_node()
File "/home/ubuntu/bitcoin/test/functional/test_framework/test_node.py", line 141, in stop_node
self.stop()
File "/home/ubuntu/bitcoin/test/functional/test_framework/test_node.py", line 87, in __getattr__
assert self.rpc_connected and self.rpc is not None, "Error: no RPC connection"
AssertionError: Error: no RPC connection
```
Passes for bitcoind and bitcoin-qt when run on #12836.
Longer term, we should consider running functional tests over bitcoin-qt in one of the Travis jobs.
Tree-SHA512: 0c2f40f3d5f0e78c3a1b07dbee8fd383eebab27ed0bf2a98a5b9cc66613dbd7b70e363c56163a37e02f68ae7ff7b3ae1769705d0e110ca68a00f8693315730a4
12982682a6 [tests] Change feature_csv_activation.py to use BitcoinTestFramework (John Newbery)
db7ffb9d1b [tests] Move utility functions in feature_csv_activation.py out of class. (John Newbery)
0842edf9ee [tests] Remove nested loops from feature_csv_activation.py (John Newbery)
2e511d5424 [tests] improve logging in feature_csv_activation.py (John Newbery)
6f7f5bc002 [tests] fix flake8 nits in feature_csv_activation.py (John Newbery)
Pull request description:
Next step in #10603.
- first four commits tidy up bip68-112-113-p2p.py
- fifth commit removes usage of ComparisonTestFramework
Tree-SHA512: 34466be12280096ad92ac842f9c594ae40c19be9b4edc73c1e37964d03d55f4e75b80cea50c9940404096effc23705671503a883a7b7773b5866a29f653ba710
5a67c0524e [tests] Fix intermittent rpc_net.py failure. (John Newbery)
Pull request description:
rpc_net.py would intermittently fail on Travis, probably
due to assuming that two consecutive RPC calls were atomic.
Fix this by trying the test up to three times and only failing
if all three attempts fail.
fixes#11778
Tree-SHA512: f2f5047e05114ad2110377e6221ce057680c240952971fb33863834587d2250896c6b697ba27eef739cd0ab23faf47dfae8cafadc9833cbfab5a6f7e36dae5e2
8394300859 [Tests] fix a typo in TestNode.assert_start_raises_init_error() (Roman Zeyde)
Pull request description:
`self.wait_util_stopped()` should be `self.wait_until_stopped()`.
Also, use a specific Exception subclass for indicating node failure to start (instead of using `AssetionError` and an `except Exception` clause).
Following https://travis-ci.org/bitcoin/bitcoin/jobs/359066226#L2726 and depending on #12806 (which fixes the root cause of the Travis test failure).
Tree-SHA512: 7bd5a95586a412472ef9dffdb086789d7275ddaf862724e21cebb3418d0c97e6d89b4d1a58375e42114060d028403d6eab89e3a1e9a833ffe8dadf3439ab1fe2
265d7c4 [tests] Improve assert message when wait_until() fails (John Newbery)
ebf053a [tests] Change feature_block.py to use BitcoinTestFramework (John Newbery)
fc02c12 [tests] Add logging to feature_block.py (John Newbery)
3898c4f [tests] Tidy up feature_block.py (John Newbery)
5cd01d2 [tests] Fix flake8 warnings in feature_block.py (John Newbery)
Pull request description:
Next step in #10603.
- first three commits tidy up feature_block.py
- fourth commit removes usage of ComparisonTestFramework
Longer term, it would be better to separate net_processing testing from validation testing, but I think this is still a useful PR, since it moves us away from the comparison test framework.
Tree-SHA512: d0bb3ad22ad0aa1222877f4212bff075f9ce358e99c69c26d9913e4b346d931b8380e744434a9f6f37812c352cdaa75791691565bfeb18afcb619c06c6ca32a3
b466f6b [Tests] Use blockmaxweight where tests previously had blockmaxsize (Conor Scott)
Pull request description:
Fix for #12768: `-blockmaxsize` has been removed, but some tests were using this feature, so update with `-blockmaxweight`
Tree-SHA512: 5f6d643daee43366c6e61f4154a3920efb4cef1455e483575cf19b0f95bc6e56668360c1562fa18f85b336e48f64e482bd29b1ecb227d7c78c4344d7f5d32ed3
rpc_net.py would intermittently fail on Travis, probably
due to assuming that two consecutive RPC calls were atomic.
Fix this by only testing that amounts are bounded above and
below rather than equal.
adc2586 doc: Refer to witness reserved value as spec. in the BIP (MarcoFalke)
Pull request description:
BIP141 refers to the coinbase's input's witness that consists of a single 32-byte array as "witness reserved value".
This updates the code to follow the BIP
Tree-SHA512: 49c9463519bd11b9ff322eeecd638f7627aa8efdfb869f8549f9a160ff34281e1b5a0b9d83545a692de6f5ff795055292c423403b0f3ce7597e3f32273cf1deb
d71bedb qa: Fix function names in feature_blocksdir (MarcoFalke)
Pull request description:
This fixes the test failure on master:
```
AttributeError: 'BlocksdirTest' object has no attribute 'assert_start_raises_init_error'
```
Tree-SHA512: d96a9b707a9b4fb8752b15f28dae02c60c25cbec21dca5f3ee62e2717c6a49951533c24b52ed0d6e99c5a964ef2c3e90fdc58a9104122714ae9874e121955df6
a192636 -blocksdir: keep blockindex leveldb database in datadir (Jonas Schnelli)
f38e4fd QA: Add -blocksdir test (Jonas Schnelli)
386a6b6 Allow to optional specify the directory for the blocks storage (Jonas Schnelli)
Pull request description:
Since the actual block files taking up more and more space, it may be desirable to have them stored in a different location then the data directory (use case: SSD for chainstate, etc., HD for blocks).
This PR adds a `-blocksdir` option that allows one to keep the blockfiles and the blockindex external from the data directory (instead of creating symlinks).
I fist had an option to keep the blockindex within the datadir, but seems to make no sense since accessing the index will (always) lead to access (r/w) the block files.
Tree-SHA512: f8b9e1a681679eac25076dc30e45e6e12d4b2d9ac4be907cbea928a75af081dbcb0f1dd3e97169ab975f73d0bd15824c00c2a34638f3b284b39017171fce2409
4757c04 [config] Remove blockmaxsize option (John Newbery)
Pull request description:
The blockmaxsize option was marked as deprecated in V0.15.1, and code
was added to convert provided blockmaxsize into blockmaxweight. However,
this code was incorrectly implemented, and blockmaxsize was silently
ignored.
No users have complained about blockmaxsize being ignored, so just
remove it in V0.17.
Fixes#12640
cc @ajtowns
Tree-SHA512: 968d71d37bf175c5a02539ddec289a12586f886e1dfe64c1d9aa5e39db48d06d21665153824fac3b11503a55f0812d2f1115a2d726aafd37b76ed629ec0aa671
d2527bd Rename wallet_accounts.py test (Russell Yanofsky)
045eeb8 Rename account to label where appropriate (Russell Yanofsky)
Pull request description:
Rename account to label where appropriate
This change only updates strings and adds RPC aliases, but should simplify the implementation of address labels in https://github.com/bitcoin/bitcoin/pull/7729, by getting renaming out of the way and letting that change focus on semantics.
The difference between accounts and labels is that labels apply only to addresses, while accounts apply to both addresses and transactions (transactions have "from" and "to" accounts). The code associating accounts with transactions is clumsy and unreliable so we would like get rid of it.
---
There is a rebased version of #7729 atop this PR at https://github.com/ryanofsky/bitcoin/commits/pr/label, see https://github.com/bitcoin/bitcoin/pull/7729#issuecomment-338417139.
Tree-SHA512: b3f934e612922d6290f50137f8ba71ddfaea4485713c7d97e89400a8b73b09b254f9186dffa462c77f5847721f5af9852b5572ade5443d8ee95dd150b3edb7ff
The blockmaxsize option was marked as deprecated in V0.15.1, and code
was added to convert provided blockmaxsize into blockmaxweight. However,
this code was incorrectly implemented, and blockmaxsize was silently
ignored.
No users have complained about blockmaxsize being ignored, so just
remove it in V0.17.
c8330d4 qa: Use node.datadir instead of tmpdir in test framework (MarcoFalke)
Pull request description:
Commit c53c9831ee introduced the utility function `get_datadir_path`, however not all places in the code use this util function. Using the util function everywhere makes it easier to review pull requests related to the datadir.
This commit replaces datadir path creation with the `datadir` member of `TestNode`, which itself uses `get_datadir_path`.
Tree-SHA512: c75707ab7149d732a6d56152a5813138a33459d3d07577b60b89f2a207c83b7663fac5f203593677c9892d1c23a5eba4bd45c5c4ababf040d720b437240fcddf
fae1374 qa: Allow for partial_match when checking init error (MarcoFalke)
5812273 [Tests] Require exact match in assert_start_raises_init_eror() (John Newbery)
0ec08a6 [Tests] Move assert_start_raises_init_error method to TestNode (John Newbery)
Pull request description:
Extracted from #12379, because the changes are important on their own.
This allows for exact testing, since the match can be specified with a strict regex. Internal details (such as exact formatting of the error message) can still be fuzzed away by regex wildcards.
Tree-SHA512: 605d2c9c42362a32d42321b066637577a026d0bb8cfc1c9f5737a4ca6503ffe85457a5122cea6e1101053ccc6c8aa1bbae3602e1fa7d2988bf7d5c275f412f66
a004eb1dae tests: Remove unused argument max_invalid from check_estimates(...) (practicalswift)
Pull request description:
Remove unused argument `max_invalid` from `check_estimates(...)`.
_Note to reviewers:_ Let me know if `check_estimates(...)` is incomplete and should be fixed instead.
Tree-SHA512: 93d250184f63baa18212d13960e35ce31ebec574dbbb1af8c40f8f3aa92264b4d03878cb33b7e4e6341e0ef28fa4c1c61ad78e8f3eb0ebd78b8ced45964f362a
4d9b4256d8 Fix typos (Dimitris Apostolou)
Pull request description:
Unfortunately I messed up my repo while trying to squash #12593 so I created a PR with just the correct fixes.
Tree-SHA512: 295d77b51bd2a9381f1802c263de7ffb2edd670d9647391e32f9a414705b3c8b483bb0e469a9b85ab6a70919ea13397fa8dfda2aea7a398b64b187f178fe6a06
728667b771 scripted-diff: rename TestNode to TestP2PConn in tests (John Newbery)
Pull request description:
Several test scripts define a subclass of P2PInterface called TestNode.
This commit renames those to TestP2PConn since we already have a
TestNode class in the test framework.
Tree-SHA512: fc8472677312ad000560fa491b680a441d05c0fee5f8eea2d031d326d81e56d231c235930c0d09dd10afc98d7255fa9f9309d5e2ae6c252bc188a5951644a5b8
8b2ef27 tests: Test connecting with non-existing RPC cookie file (practicalswift)
a2b2476 tests: Test connecting to a non-existing server (practicalswift)
de04fde bitcoin-cli: Provide a better error message when bitcoind is not running (practicalswift)
Pull request description:
Provide a better `bitcoin-cli` error message when `bitcoind` is not running.
Before this patch:
```
$ killall -9 bitcoind
$ bitcoin-cli -testnet echo 'hello world'
error: Could not locate RPC credentials. No authentication cookie could be found, and RPC password is not set. See -rpcpassword and -stdinrpcpass. Configuration file: (/root/.bitcoin/bitcoin.conf)
```
After this patch:
```
$ killall -9 bitcoind
$ bitcoin-cli -testnet echo 'hello world'
error: Could not connect to the server 127.0.0.1:18332
Make sure the bitcoind server is running and that you are connecting to the correct RPC port.
```
Tree-SHA512: bb16e1a9a1ac110ee202c3cb99b5d7c5c1e5487a17e6cd101e12dc69e9525c14dc71f37b128c26ad615369a57547f15d0f1e29b207c1b2f2ee4b4ba7105f3433
Several test scripts define a subclass of P2PInterface called TestNode.
This commit renames those to TestP2PConn since we already have a
TestNode class in the test framework.
-BEGIN VERIFY SCRIPT-
sed -i s/TestNode/TestP2PConn/ test/functional/*py test/functional/test_framework/comptool.py
_END VERIFY SCRIPT-
9d7f839a2 test: Use os.path.join consistently in feature_pruning tests (Ben Woosley)
81b082277 test: Use wait_until in tests where time was used for polling (Ben Woosley)
Pull request description:
This is prompted by and builds on #12545, a nice cleanup / consolidation of patterns.
In cases where the exception message was meaningful, I tried to represent it as well in a comment.
I expect #12545 will go in first, but I'm happy to squash them if that's preferred.
Tree-SHA512: 7a861244001c87fd6b59b6bc248ee741ac8178f7255d6f1fda39bc693c5ff3b7de5f53d13afe9829aef6ea69153481edb0a9d5bc07c36c4f66b4315edd180bb4
This change only updates strings and adds RPC aliases, but should simplify the
implementation of address labels in
https://github.com/bitcoin/bitcoin/pull/7729, by getting renaming out of the
way and letting it focus on semantics.
The difference between accounts and labels is that labels apply only to
addresses, while accounts apply to both addresses and transactions
(transactions have "from" and "to" accounts). The code associating accounts
with transactions is clumsy and unreliable so we would like get rid of it.
- move all helper methods to the end
- remove block, create_tx and create_and_sign_tx shortcuts
- remove --runbarelyexpensive option, since it defaults to True and it's
unlikely that anyone ever runs the test with this option set to false.
f98b54352 Only call NotifyBlockTip when the active chain changes (James O'Beirne)
152b7fb25 [tests] Add a (failing) test for waitforblockheight (James O'Beirne)
Pull request description:
This is a subset of the more controversial https://github.com/bitcoin/bitcoin/pull/12407, but this also adds a test demonstrating the bug.
In InvalidateBlock, we're calling NotifyBlockTip with the now-invalid block's prev regardless of what chain the ancestor block is on. This could create numerous issues, but it at least screws up `waitforblockheight` (or anything else relying on `rpc/blockchain.cpp:latestblock`) when InvalidateBlock is called on a block not in chainActive, which can happen via RPC.
Only call NotifyBlockTip when the block being marked invalid is on the active chain.
Tree-SHA512: 9a54fe5e8c7eb489daf5df4483c0986129e871e2ca931a456ba869ecb5d5a8d4f7bd27ccc9e711e9292c9ed79ddef896c85d0e81fc76883503e327995b0e914f
fa23105 qa: Cache only chain and wallet for regtest datadir (MarcoFalke)
Pull request description:
mempool.dat should be empty and I don't see a need to copy it around when restoring from the cache.
Tree-SHA512: f11ab69732db4dee0e9a0900570464e49085532b0cebc963877057112a7b985c477da3d32eb2093daabac9ada9e73b7c49881681ec5efa6101919b0af76001cf
e97b113b04 [tests] Change invalidblockrequest to use BitcoinTestFramework (John Newbery)
2b7064eda7 [tests] Fix flake8 warnings in invalidblockrequest (John Newbery)
54b8c580b7 [test] Fix nits leftover from 11771 (Conor Scott)
Pull request description:
Builds on #11771. Please review that PR first
Next step in #10603.
- first commit tidies up invalidblockrequest.py
- second commit removes usage of ComparisonTestFramework
Tree-SHA512: 14b10c09c8c0ebef4a9176eb5b883a275d04c096785ee31b84ef594eed346ec6344d7ed32184c5fb397e744725df3911f45cdfadd0810e5a52eaa256084e3456
fac70134a rpc: Update createrawtransaction examples (MarcoFalke)
fa06dfce0 [rpc] createrawtransaction: Accept sorted outputs (MarcoFalke)
8acd25d85 rpc: Allow typeAny in RPCTypeCheck (MarcoFalke)
Pull request description:
The second parameter of the `createrawtransaction` is a dictionary of the outputs. This comes with at least two drawbacks:
* In case of duplicate keys, either of them might silently disappear, with no user feedback at all. A user needs to make other mistakes, but this could eventually lead to abnormal tx fees.
* A dictionary does not guarantee that keys are sorted. Again, a user needs to keep this in mind, as it could eventually lead to excessive tx fees.
Even though my scenario of loss-of-funds is unlikely to happen, I see it as a inconvenience that should be fixed.
Tree-SHA512: cd562f34f7f9f79c7d3433805971325c388c2035611be283980f4049066a622df4f0afdc11d7ac96662260ec0115147cb65e1ab5268f5a1b063242f3fe425f77
fa1436c42 [qa] util: Remove unused sync_chain (MarcoFalke)
Pull request description:
The util function `sync_blocks` already checks for equal chains, so we can remove the unused `sync_chain`.
Also cleaned up the errors that are printed in case of timeout:
```
AssertionError: Block sync timed out:
'72a3a3e9dcfd0a09204c3447af0f481d19641eeadbe6a91b8e680ed614bc7712'
'5032af4ae22ae7a21afdc9d9f516877309c4dd8ef2ecadb9354be7088439b4a6'
'5032af4ae22ae7a21afdc9d9f516877309c4dd8ef2ecadb9354be7088439b4a6'
```
and
```
AssertionError: Mempool sync timed out:
{'c2af943d9b321c36e0f5a153a9d3d8b11bdd46ceb28e38f5fd2c722e3edb3563'}
set()
set()
```
Tree-SHA512: cb4ad30e3e3773072f59afa2c81cfa27bd8f389a93f02acb919990298627fcfbaa53a3d3944d827cc8a5d009871e42a47ea09e9bb93e85c22e3af6a24a574e5d
