Commit graph

17457 commits

Author SHA1 Message Date
Matt Corallo
93a34cfeec Make DisconnectBlock unaware of where undo data resides on disk 2017-12-04 09:33:10 -05:00
Wladimir J. van der Laan
00d25e90db
Merge #11804: [docs] Fixed outdated link with archive.is
bf20a7d [docs] Fixed outdated link with archive.is (Tim Shimmin)

Tree-SHA512: 7d316aa4c462213578a9a1e71b06a459924ed3bb681a0469cc3719b21a871a6350fff4656696057e362561ee10dc10e933fe1328ef454ab7e133ecf05549ec1c
2017-12-01 15:28:53 +01:00
Tim Shimmin
bf20a7d640 [docs] Fixed outdated link with archive.is
The listed link is directing to an empty page, at least content-wise. I found the same page on archive.is and linked to that instead.
2017-12-01 15:26:53 +01:00
Wladimir J. van der Laan
0d7e0a3289
Merge #11337: Fix code constness in CBlockIndex::GetAncestor() overloads
b4058ed Fix code constness in CBlockIndex::GetAncestor() overloads (Dan Raviv)

Pull request description:

  Make the non-const overload of `CBlockIndex::GetAncestor()` reuse the const overload implementation instead of the other way around. This way, the constness of the const overload implementation is guaranteed. The other way around, it was possible to implement the non-const overload in a way which mutates the object, and since that implementation would be called even for const objects (due to the reuse), we would get undefined behavior.

Tree-SHA512: 545a8639bc52502ea06dbd924e8fabec6274fa69b43e3b8966a7987ce4dae6fb2498f623730fde7ed0e47478941c7f8baa2e76a12018134ff7c14c0dfa25ba3a
2017-12-01 15:19:07 +01:00
Anthony Towns
5a7c09aebf test: Add tests for -debuglogfile with subdirs 2017-12-01 11:28:23 +01:00
Wladimir J. van der Laan
4158734946 doc: Update release notes for -debuglogfile 2017-12-01 11:28:23 +01:00
Wladimir J. van der Laan
23232422e5 test: Add test for -debuglogfile 2017-12-01 11:28:13 +01:00
MarcoFalke
13e31dd654
Merge #11791: [tests] Rename NodeConn and NodeConnCB
873beca6d [tests] Rename NodeConn and NodeConnCB (John Newbery)

Pull request description:

  Final step in #11518

  NodeConn -> P2PConnection
  NodeConnCB -> P2PInterface

  This is basically just a rename. Should be an easy review.

Tree-SHA512: fe1204b2b3d8182c5e324ffa7cb4099a47ef8536380e0bb9d37a5fccf76a24f548d1f1a7988ab8f830986a3058b670696de3fc891af5e5f75dbeb4e3273005d7
2017-11-30 18:01:51 -05:00
MarcoFalke
fbce66a982
Merge #10493: Use range-based for loops (C++11) when looping over map elements
680bc2cbb Use range-based for loops (C++11) when looping over map elements (practicalswift)

Pull request description:

  Before this commit:

  ```c++
  for (std::map<T1, T2>::iterator x = y.begin(); x != y.end(); ++x) {
      T1 z = (*x).first;
      …
  }
  ```

  After this commit:

  ```c++
  for (auto& x : y) {
      T1 z = x.first;
      …
  }
  ```

Tree-SHA512: 954b136b7f5e6df09f39248a6b530fd9baa9ab59d7c2c7eb369fd4afbb591b7a52c92ee25f87f1745f47b41d6828b7abfd395b43daf84a55b4e6a3d45015e3a0
2017-11-30 17:10:05 -05:00
Wladimir J. van der Laan
9e38d35744
Merge #10874: [RPC] getblockchaininfo: Loop through the bip9 soft fork deployments instead of hard coding
e4d0af4 Loop through the bip9 soft fork deployments instead of hard coding (Andrew Chow)

Pull request description:

  Instead of hard coding which deployment statistics should be listed in the `getblockchaininfo` output, loop through the available deployments (except testdummy) when displaying their deployment info.

Tree-SHA512: 87e503bcf5e0fd379940d5e53320b9cbb4b47d647c66246d46f47c09a941f135e6ce1e8b75dad441ed4c22c3f41992dfde7717414be1d71c771d4ff8fe0e1936
2017-11-30 18:19:49 +01:00
Andrew Chow
e4d0af4fe1 Loop through the bip9 soft fork deployments instead of hard coding 2017-11-30 12:16:03 -05:00
Wladimir J. van der Laan
60d739eb49
Merge #11789: [tests] [travis-ci] Combine logs on failure
ff8a9b0 [tests] Add combinedlogslen argument to test_runner.py (John Newbery)
dba94ea [tests] [travis-ci] Move Travis functional test log post processing to test_runner (John Newbery)
bba1c54 [tests] Improve logging shutdown and add hint for combine_logs (John Newbery)

Pull request description:

  Replaces #11779 . Notes from that PR:

  > Currently, when a functional test fails, the debug logs are printed sequentially to the travis log. This makes debugging race conditions based on the travis log hard. Instead, all logs events should be combined and sorted by their timestamp, then appended to the travis log.

  @MarcoFalke

Tree-SHA512: 56c80067d6a2c92f7e6a35e3ae5160637a0de052d9da593c7be6e02233544a93c66d62456f903f85e2edc09e31ab4bdafd1aed1d9897ae48c634f82631f856f7
2017-11-30 13:41:11 +01:00
Wladimir J. van der Laan
dd49862a70
Merge #11794: Prefix leveldb debug logging
9b80fc1 Prefix leveldb debug logging (Wladimir J. van der Laan)

Pull request description:

  Add leveldb: prefix to leveldb debug logging lines.
  leveldb debug messages come in various scary flavors such as:

      2017-11-30 08:26:31 leveldb: Recovering log #26
      2017-11-30 08:26:31 leveldb: Level-0 table #28: started
      2017-11-30 08:26:31 leveldb: Level-0 table #28: 597 bytes OK
      2017-11-30 08:26:31 leveldb: Delete type=0 #26
      2017-11-30 08:26:31 leveldb: Delete type=3 #24

  so it's reasonably important to mark them as coming from leveldb internals and not from consensus validation wallet or such.
  This is consistent with the `libevent:` prefix for libevent messages.

  (this only affects `-debug=leveldb` or `-debug=1` otherwise you won't see them in the first place)

Tree-SHA512: 074eba00d39c6378b9e14d03aa2c551b4e3fc7bffdd5a1a0ba2498b44bcc77071d47735be09493286056053f0cca625c5cbaad7ad1ddb9d902d30e7cd316d9d2
2017-11-30 12:56:55 +01:00
Wladimir J. van der Laan
3ff6ff5ec5
Merge #11744: net: Add missing locks in net.{cpp,h}
bfb0c0a Add Clang thread safety analysis annotations (practicalswift)
63f21d2 net: Add missing locks in net.{cpp,h} (practicalswift)

Pull request description:

  Add missing locks in `net.{cpp,h}`:
  * writing variable `nTotalBytesRecv` requires holding mutex `cs_totalBytesRecv` exclusively
  * writing variables `nTotalBytesSent`, `nMaxOutboundTotalBytesSentInCycle` and `nMaxOutboundCycleStartTime` require holding mutex `cs_totalBytesSent` exclusively
  * writing variables `nMaxOutboundTimeframe` and `nMaxOutboundLimit` require holding mutex `cs_totalBytesSent` exclusively
  * writing variable `vAddedNodes` requires holding mutex `cs_vAddedNodes` exclusively

Tree-SHA512: 54a5b4bc6dc6f404dacf403af2ddd7b2214cc0a17d1d32a282def1c6b536105dada56bfabbc8606f56755f2d24874abba09913b51c8d13b0f2b000149551f0b0
2017-11-30 11:52:24 +01:00
Wladimir J. van der Laan
cf5f432c69 Add -debuglogfile option
This patch adds an option to configure the name and/or directory of the
debug log.

The user can specify either a relative path, in which case the path
is relative to the data directory. They can also specify an absolute
path to put the log anywhere else in the file system.
2017-11-30 11:16:02 +01:00
Wladimir J. van der Laan
16fff80257
Merge #11783: Fix shutdown in case of errors during initialization
d31e5c1 Fix shutdown in case of errors during initialization (Wladimir J. van der Laan)

Pull request description:

  PR #10286 introduced a few steps which are not robust to early shutdown in initialization.

  Stumbled upon this with #11781, not sure if there are other scenarios that can trigger it, but it's good to harden against this in any case.

  E.g.
  ```
  $ src/bitcoind  -debuglogfile=/dfdf
  Error: Could not open debug log file /dfdf
  Program received signal SIGSEGV, Segmentation fault.
  UnregisterValidationInterface (pwalletIn=0x0) at /.../bitcoin/src/validationinterface.cpp:82
  82          g_signals.m_internals->BlockChecked.disconnect(boost::bind(&CValidationInterface::BlockChecked, pwalletIn, _1, _2));
  (gdb) bt
  #0  UnregisterValidationInterface (pwalletIn=0x0) at /.../bitcoin/src/validationinterface.cpp:82
  #1  0x00005555555a11fc in Shutdown () at /.../bitcoin/src/init.cpp:196
  #2  0x00005555555961cc in AppInit (argc=<optimized out>, argv=<optimized out>) at /.../bitcoin/src/bitcoind.cpp:183
  #3  0x0000555555596249 in main (argc=0, argv=0x555555ecf200) at /.../bitcoin/src/bitcoind.cpp:19
  ```

Tree-SHA512: 7dd9570a9803514a17781bfadf1edde47e96df4e852cce2f423cab422e005fb94d44e777af1a6ea5167b04a4d889e848ae7a61a7e0e94232247ddea32ee70fc8
2017-11-30 11:15:36 +01:00
Wladimir J. van der Laan
8879d50b18
Merge #11793: Docs: Bump OS X version to 10.13
543ab40 Docs: Bump OSX version to 10.13 in build-osx.md (Varunram Ganesh)

Pull request description:

  Core works fine on macOS 10.13

Tree-SHA512: 44807920e3d5518c98d68191ed614019934bb702df9695389f8178a00a7c5afccd90fad68a07568cdc3e3d04068bddf434942fb81dceb6cbde9bb4ff4e49e425
2017-11-30 11:05:51 +01:00
Anthony Towns
7250b4e563 [tests] README.md nit fixes 2017-11-30 19:59:39 +10:00
Varunram Ganesh
543ab40a44 Docs: Bump OSX version to 10.13 in build-osx.md 2017-11-30 14:52:06 +05:30
Wladimir J. van der Laan
ef14f2e3ff
Merge #11191: RPC: Improve help text and behavior of RPC-logging.
c60c49b Improve help text and behavior of RPC-logging (Akio Nakamura)

Pull request description:

  1. It is allowed `libevent` logging to be updated during runtime,
    but still described that restriction in the help text.
    So we delete these text.
  2. Add a descrption about the evaluation order of `<include>` and
    `<exclude>` to clarify how debug loggig categories to be set.
  3. Add a description about the available logging category `"all"`
    which is not explained.
  4. Add `"optional"` to the help text of `<include>` and `<exclude>`.
  5. Add missing new lines before `"Argument:"`.
  6. `"0"`,`"1"` are allowed in both array of `<include>` and `<exclude>`.
    `"0"` is **ignored** and `"1"` is treated **same as** `"all"`.
    It is confusing, so forbid them.
  7. It always returns all logging categories with status.
    Fix the help text to match this behavior.

Tree-SHA512: c2142da1a9bf714af8ebc38ac0d82394e2073fc0bd56f136372e3db7b2af3b6746f8d6b0241fe66c1698c208c124deb076be83f07dec0d0a180ad150593af415
2017-11-30 10:12:19 +01:00
Wladimir J. van der Laan
9b80fc1498 Prefix leveldb debug logging
Add leveldb: prefix to leveldb debug logging lines.
leveldb debug messages come in various scary flavors such as:

    2017-11-30 08:26:31 leveldb: Recovering log #26
    2017-11-30 08:26:31 leveldb: Level-0 table #28: started
    2017-11-30 08:26:31 leveldb: Level-0 table #28: 597 bytes OK
    2017-11-30 08:26:31 leveldb: Delete type=0 #26
    2017-11-30 08:26:31 leveldb: Delete type=3 #24

so it's reasonably important to mark them as coming from leveldb
internals and not from consensus validation wallet or such.

(this only affects `-debug=leveldb` or `-debug=1` otherwise you won't
see them in the first place)
2017-11-30 09:29:25 +01:00
Wladimir J. van der Laan
6d3dc52b6b
Merge #9254: [depends] ZeroMQ 4.2.2
126999d depends: fix zmq build with mingw < 4.0 (Cory Fields)
387879d [depends] ZeroMQ 4.2.2 (fanquake)

Pull request description:

  Update depends ZeroMQ to 4.2.2, the release notes are available [here](https://github.com/zeromq/libzmq/releases).

  We can drop both patches, as they have both been merged upstream (they actually had been for some time but just hadn't yet made it into a release).

  `--without-documentation` is deprecated and has been replaced with `--without-docs`.
  `--disable-perf` disables building performance measuring tools, which are enabled by default, see the libzmq [configure.ac](https://github.com/zeromq/libzmq/blob/master/configure.ac#L367).
  Updated dependencies.md.
  `--disable-curve-keygen` disable building the curve key generation tool. See [here](https://github.com/zeromq/libzmq/blob/master/configure.ac#L405).

  Can someone on windows test that this is still working correctly. Maybe @achow101 ?

Tree-SHA512: c6c4b15f545b6de21648f05027b5500fca0e6b5b72e791ac9a0aa523c57f2feb5aae94e42531275dddd922e11e462a52f08be1118ba1629c3cae765b18e5d720
2017-11-30 08:37:09 +01:00
Jonas Schnelli
6816484a02
Merge #11792: Trivial: fix comments for ZeroMQ bitcoind args
33698c94b Trivial: fix comments for ZeroMQ bitcoind args (aaron-hanson)

Pull request description:

  The ZeroMQ command-line args suggested here had the "-zmqpubhashblock" arg duplicated and the "-zmqpubrawblock" arg missing.

Tree-SHA512: ef3a90f6d82367104aa751778074f6f56d2aaa9cbbf980731f60ee77393db256551423f5414c5b41f09707d08828afc663d06661152ef504a690ceb13c80bc0d
2017-11-29 14:17:27 -10:00
Jonas Schnelli
38d31f95d3
Merge #11395: Qt: Enable searching by transaction id
eac2abca0 Qt: Enable searching by transaction id (Luke Dashjr)
c407c61c5 Qt: Avoid invalidating the search filter, when it doesn't really change (Luke Dashjr)
b1f634242 Qt: Rename confusingly-named "address prefix" to "search string" (Luke Dashjr)

Pull request description:

Tree-SHA512: 1c67037d19689fbaff21d15ed7848ac86188e5de34728312e1f9758dada759cab50d913a5bc09e413ecaa3e07557cf253809b95b5637ff79f2e3cf24d86dd3ed
2017-11-29 13:51:16 -10:00
aaron-hanson
33698c94be Trivial: fix comments for ZeroMQ bitcoind args 2017-11-29 17:14:03 -06:00
John Newbery
873beca6de [tests] Rename NodeConn and NodeConnCB
NodeConn -> P2PConnection
NodeConnCB -> P2PInterface
2017-11-29 17:14:48 -05:00
MarcoFalke
9f2c2dba21
Merge #11712: [tests] Split NodeConn from NodeConnCB
e9dfa9bcc [tests] Move version message sending from NodeConn to NodeConnCB (John Newbery)
dad596fc3 [tests] Make NodeConnCB a subclass of NodeConn (John Newbery)
e30d40438 [tests] Move only: move NodeConnCB below NodeConn (John Newbery)
4d5059856 [tests] Tidy up mininode (John Newbery)
f2ae6f32a [tests] Remove mininode periodic (half-hour) ping messages (John Newbery)
ec59523c5 [tests] Remove rpc property from TestNode in p2p-segwit.py. (John Newbery)

Pull request description:

  This is the final step in #11518, except for possibly renaming - for motivation, please see that PR.

  If this is merged, then migrating the test framework from asyncore to asyncio should be easier (I say should because I haven't dug too deeply into what would be required).

  Requesting review from @ryanofsky , since he always has good feedback on these refactor PRs, and I'd appreciate his take on this refactor. Note particularly that I've reverted the change suggested here: https://github.com/bitcoin/bitcoin/pull/11182#discussion_r148859555 . The idea, as always, is to present a simple interface to the test writer.

Tree-SHA512: 94dd467a13ec799b101108cf47d4dccb6f6240b601e375e3d785313333bbb389c26072a50759aca663bbf3d6c8b867b99e36ae8800ab8ea115e0496c151926ce
2017-11-29 16:29:19 -05:00
John Newbery
ff8a9b068a [tests] Add combinedlogslen argument to test_runner.py
Instead of calling combine_logs from test_runner when the environment variable
PYTHON_DEBUG is set, add a combinedlogslen argument. This makes it easier
to call when running locally, and allows a different length of combined logs
to be printed.
2017-11-29 15:10:51 -05:00
John Newbery
dba94ead0c [tests] [travis-ci] Move Travis functional test log post processing to test_runner 2017-11-29 15:10:05 -05:00
John Newbery
bba1c54edd [tests] Improve logging shutdown and add hint for combine_logs 2017-11-29 13:29:15 -05:00
Cory Fields
126999d1cc
depends: fix zmq build with mingw < 4.0 2017-11-29 19:31:59 +08:00
fanquake
387879dd4c
[depends] ZeroMQ 4.2.2 2017-11-29 19:31:50 +08:00
Wladimir J. van der Laan
32c9b570fc
Merge #11753: clarify abortrescan rpc use
8b2c733 clarify abortrescan rpc use (Gregory Sanders)

Pull request description:

  `-rescan` during startup doesn't apply since RPC has not warmed up by that point

Tree-SHA512: 0b6738ed9429ca41edbfa23bb3e2da23bb16fed9e55c1803ab140b2efc49ef3295bb8b7eeb8c24df94204c5b3fb25d0d57cbc8d1be11856a5763c9fde71bceba
2017-11-29 12:19:53 +01:00
Wladimir J. van der Laan
46d1ebfcf8
Merge #11737: Document partial validation in ConnectBlock()
9d811dc Document partial validation in ConnectBlock() (Suhas Daftuar)

Pull request description:

  `ConnectBlock()` relies on validation that happens in `ContextualCheckBlock()` and
  `ContextualCheckBlockHeader()`. This has implications for implementing consensus
  changes and handling software upgrade to ensure that nodes upgrading their
  software end up enforcing all the consensus rules.

Tree-SHA512: 36a252af2221b0e5d5d6f8d5f8b16f8b566ca0db2d56242130a5523302c8757599ac234594a6a946c1689b260d18a32c2c7f8c3831304e78b9832e2ce5ac435a
2017-11-29 12:16:45 +01:00
Wladimir J. van der Laan
e97039605e
Merge #11747: Fix: Open files read only if requested
e1a8ec5 Fix: Open files read only if requested (Andras Elso)

Tree-SHA512: 047951bf3fa1272764596d2efed0a541105a6d3057789ba4218cd1bbce8a802cab0feac0ed3d28f6eab6b2e54e294d46f729dd0162d6d209e319d716c0567352
2017-11-29 11:58:42 +01:00
Karl-Johan Alm
a5f5a2ce53
[rpc] Fix fVerbose parsing (remove excess if cases). 2017-11-29 17:52:13 +09:00
John Newbery
e9dfa9bccc [tests] Move version message sending from NodeConn to NodeConnCB
This commit moves the logic that sends a version message
on connection from NodeConn to NodeConnCB. NodeConn should
not be aware of the semantics or meaning of the P2P payloads.
2017-11-28 12:47:02 -05:00
John Newbery
dad596fc37 [tests] Make NodeConnCB a subclass of NodeConn
This makes NodeConnCB a subclass of NodeConn, and
removes the need for the client code to know
anything about the implementation details of NodeConnCB.

NodeConn can now be swapped out for any other implementation
of a low-level connection without changing client code.
2017-11-28 12:44:16 -05:00
John Newbery
e30d404385 [tests] Move only: move NodeConnCB below NodeConn
This is required since NodeConnCB will inherit from NodeConn
after the next commit.
2017-11-28 12:31:37 -05:00
John Newbery
4d50598569 [tests] Tidy up mininode
Add docstrings and renames some methods.
Also removes the redundant NodeConn.readable() method override.
2017-11-28 12:31:31 -05:00
Wladimir J. van der Laan
d31e5c1d0f Fix shutdown in case of errors during initialization
PR #10286 introduced a few steps which are not robust to early shutdown
in initialization.

Stumbled upon this with #11781, not sure if there are other scenarios
that can trigger it, but it's harden against this in any case.
2017-11-28 12:12:05 +01:00
Wladimir J. van der Laan
26efc220a1
Merge #11722: Switched sync.{cpp,h} to std threading primitives.
f7f7e2c threads: add a thread_local autoconf check (Cory Fields)
bba9bd0 Switched sync.{cpp,h} to std threading primitives. (Thomas Snider)

Pull request description:

  Replaced boost threading primitives with the std equivalents.

Tree-SHA512: 72d10f9e48bfcf1db87e4a88bc698ef98eba0b29fe904570391b34a6ea1ffad474b7f192e70e3588a30e448f70f244eb4ddc5f24412a0bde2b564e76274160a5
2017-11-28 08:39:41 +01:00
Cory Fields
f7f7e2cd34 threads: add a thread_local autoconf check 2017-11-27 15:01:47 -08:00
MarcoFalke
a89221873a
Merge #11683: tests: Remove unused mininode functions {ser,deser}_int_vector(...). Remove unused imports.
f522fb7c9 tests: Remove unused mininode functions deser_int_vector(f) and ser_int_vector(l) (practicalswift)
0f3b752ec Remove unused imports (practicalswift)

Pull request description:

  * Remove unused mininode functions `deser_int_vector(f)` and `ser_int_vector(l)`. Last use removed in 3858aabbd0. Friendly ping @jnewbery :-)
  * Remove unused imports.

Tree-SHA512: 840c5623eae9f929561f6e86816883c5904ec1af82fc8d5e56dee1c0b1fe22e8600c10f7358ed8b556b3aec8c65c4910f6eee30e8015a573c4df8bef91124d3e
2017-11-25 21:54:45 -05:00
Wladimir J. van der Laan
a933cb14c7
Merge #11603: Move RPC registration out of AppInitParameterInteraction
abbd230 Move RPC registration out of AppInitParameterInteraction (Russell Yanofsky)

Pull request description:

  Move to AppInitServers. This doesn't have any effects on bitcoin behavior. It was just strange to have this unrelated code in the middle of parameter interaction.

Tree-SHA512: 373e18f2ef8d21999ad36295d69326128a3086044acfc8ed537abd5497c8d3620b9832f7f6aa87c0c0939bb5e0d92be8a3c006b5997e9e6fa20334f5610c89bc
2017-11-23 22:10:30 +01:00
John Newbery
f2ae6f32a6 [tests] Remove mininode periodic (half-hour) ping messages 2017-11-23 10:03:22 -05:00
Wladimir J. van der Laan
84fa64598e
Merge #11755: [Docs] Bump minimum required version of GCC to 4.8
fae98f6 [Docs] Bump minimum required version of GCC to 4.8 (fanquake)

Pull request description:

  Make it explicit that the minimum required version of GCC is 4.8. Discussion in #11732.

Tree-SHA512: 85ade5a4a63ea1cb6b5e20756bc96f25518c394e00a8d3ed5b9c2927b55ea3155645ca74bb1c7e7eda69d7e42d440a42bde839f281e57fc3e20390b2a19885d6
2017-11-23 08:30:20 +01:00
practicalswift
bfb0c0a5b7 Add Clang thread safety analysis annotations 2017-11-23 07:59:58 +01:00
fanquake
fae98f66fe
[Docs] Bump minimum required version of GCC to 4.8 2017-11-23 08:02:06 +08:00
sean
3e1ee31043 [Tests] Adding unit tests for GetDifficulty in blockchain.cpp.
blockchain.cpp has low unit test coverage. This commit is intended
to start improving its code coverage to reasonable levels. One or more
follow up commits will complete the task that this commit is starting
(though the usefulness of this commit is not dependent upon later
commits).

Note that these tests were not written based upon a specification of how
GetDifficulty *should* work, but rather how it actually *does* work. As
a result, if there are any bugs in the current GetDifficulty
implementation, these unit tests serve to lock them in rather than
expose them.

-- Why has blockchain.cpp been modified if this is a unit testing change?

Since the existing GetDifficulty function relies on a global variable,
chainActive, it was not suitable for unit testing purposes. Both the
existing GetDifficulty function and the unit tests now call through to
a new, more modular version of GetDifficulty that can work on any chain,
not just chainActive.

-- Why does blockchain_tests.cpp directly include blockchain.cpp instead
of blockchain.h?

While the new GetDifficulty function's signature is arguably better than
the old one's, it still isn't great, and doesn't seem to warrant inclusion
as part of the blockchain.h API, especially since only test code is
directly using it. If a better way of exposing the new GetDifficulty
function to unit tests exists, please mention it and the commit will be
updated accordingly.

-- Why is the test fixture named blockchain_difficulty_tests rather than
blockchain_tests?

The Bitcoin Core policy for naming unit test files is to match the the
file under test ("blockchain" becomes "blockchain_tests"). While this
commit complies with that, blockchain.cpp is a massive file, such that
having all of the unit tests in one file will tend towards disorder.
Since there will be a lot more tests added to this file, the intention
is to divide up different types of tests into different test fixtures
within the same file.
2017-11-22 15:48:14 -08:00