delta/python-packages/sqlalchemy.git/test/base/test_dependency.py, branch workflow_test_aiosqlite

Send deterministic ordering into unit of work topological

2020-12-12T00:19:17+00:00

Improved the unit of work topological sorting system such that the
toplogical sort is now deterministic based on the sorting of the input set,
which itself is now sorted at the level of mappers, so that the same inputs
of affected mappers should produce the same output every time, among
mappers / tables that don't have any dependency on each other. This further
reduces the chance of deadlocks as can be observed in a flush that UPDATEs
among multiple, unrelated tables such that row locks are generated.

topological.sort() has been made "deterministic" in all cases by
using a separate list + set.

Fixes: #5735
Change-Id: I073103df414dba549e46605b394f8ccae6e80d0e

Post black reformatting

2019-01-06T23:23:11+00:00

Applied on top of a pure run of black -l 79 in
I7eda77fed3d8e73df84b3651fd6cfcfe858d4dc9,  this set of changes
resolves all remaining flake8 conditions for those codes
we have enabled in setup.cfg.

Included are resolutions for all remaining flake8 issues
including shadowed builtins, long lines, import order, unused
imports, duplicate imports, and docstring issues.

Change-Id: I4f72d3ba1380dd601610ff80b8fb06a2aff8b0fe

Run black -l 79 against all source files

2019-01-06T17:34:50+00:00

This is a straight reformat run using black as is, with no edits
applied at all.

The black run will format code consistently, however in
some cases that are prevalent in SQLAlchemy code it produces
too-long lines.   The too-long lines will be resolved in the
following commit that will resolve all remaining flake8 issues
including shadowed builtins, long lines, import order, unused
imports, duplicate imports, and docstring issues.

Change-Id: I7eda77fed3d8e73df84b3651fd6cfcfe858d4dc9

Make all tests to be PEP8 compliant

2017-02-07T16:21:56+00:00

tested using pycodestyle version 2.2.0

Fixes: #3885
Change-Id: I5df43adc3aefe318f9eeab72a078247a548ec566
Pull-request: https://github.com/zzzeek/sqlalchemy/pull/343

unit-test deterministic topological sort

2015-03-07T18:36:41+00:00

- the raw 2to3 run

2013-04-27T23:53:57+00:00

- went through examples/ and cleaned out excess list() calls

trying different approaches to test layout. in this one, the testing modules

2012-09-27T06:37:33+00:00

become an externally usable package but still remains within the main sqlalchemy parent package.
in this system, we use kind of an ugly hack to get the noseplugin imported outside of the
"sqlalchemy" package, while still making it available within sqlalchemy for usage by
third party libraries.

-whitespace bonanza, contd

2012-07-28T21:05:50+00:00

- Fixed bug in unit of work whereby detection of

2011-09-22T23:21:39+00:00

    "cycles" among classes in highly interlinked patterns
    would not produce a deterministic
    result; thereby sometimes missing some nodes that
    should be considered cycles and causing further
    issues down the road.  Note this bug is in 0.6
    also; not backported at the moment.
    [ticket:2282]

- remove test.sql._base, test.engine._base, test.orm._base, move those classes to a new test.lib.fixtures module

2011-03-27T20:27:27+00:00

- move testing.TestBase to test.lib.fixtures
- massive search and replace