From: hunter_spawn@hotmail.com
To: ruby-core@ruby-lang.org
Subject: [ruby-core:90764] [Ruby trunk Bug#15476] Branch coverage: Failing to load trivial sample when branch coverage is on
Date: Fri, 28 Dec 2018 04:49:03 +0000 (UTC) [thread overview]
Message-ID: <redmine.issue-15476.20181228044901.24ffc33fb875322e@ruby-lang.org> (raw)
In-Reply-To: redmine.issue-15476.20181228044901@ruby-lang.org
Issue #15476 has been reported by MaxLap (Maxime Lapointe).
----------------------------------------
Bug #15476: Branch coverage: Failing to load trivial sample when branch coverage is on
https://bugs.ruby-lang.org/issues/15476
* Author: MaxLap (Maxime Lapointe)
* Status: Open
* Priority: Normal
* Assignee:
* Target version:
* ruby -v: 2.6.0
* Backport: 2.4: UNKNOWN, 2.5: UNKNOWN, 2.6: UNKNOWN
----------------------------------------
The following will fail (for the second #load) on 2.6.0
I assume this is Ruby removing useless code, and the branch coverage code handling it incorrectly.
~~~ ruby
require 'tempfile'
f = Tempfile.new(['ruby', '.rb'])
f.write(<<-RUBY)
nil&.map { |i| i }
RUBY
f.close
require 'coverage'
load f.path
puts 'Without coverage worked'
Coverage.start(branches: true)
load f.path
puts 'With coverage worked'
~~~
This problem was not present in 2.5, but appeared in 2.6
--
https://bugs.ruby-lang.org/
next parent reply other threads:[~2018-12-28 4:49 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <redmine.issue-15476.20181228044901@ruby-lang.org>
2018-12-28 4:49 ` hunter_spawn [this message]
2018-12-28 4:52 ` [ruby-core:90765] [Ruby trunk Bug#15476] Branch coverage: Failing to load trivial sample when branch coverage is on hunter_spawn
2019-01-01 1:53 ` [ruby-core:90841] [Ruby trunk Bug#15476][Open] " mame
2019-01-14 6:34 ` [ruby-core:91070] [Ruby trunk Bug#15476] Branch coverage: Failing to load trivialsample " naruse
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