From: utkarsh@...
Date: 2020-10-04T02:17:45+00:00
Subject: [ruby-core:100293] [Ruby master Bug#17211] Test failures in ruby2.7.2 and ruby3.0~preview1

Issue #17211 has been updated by utkarsh (Utkarsh Gupta).


Hey,

mame (Yusuke Endoh) wrote in #note-1:
> Hi, cloud you tell us what environment (OS, distribution, version, CPU, terminal, etc.) you are using? Thanks

Right, sorry for not mentioning this earlier.
I am running Debian Sid. Intel(R) Core(TM) i7-8550U CPU @ 1.80GHz with 16 gigs of RAM (in case that's of any help).
I co-maintain Ruby in Debian and I wanted to upload v2.7.2 but stumbled upon these failures. However, 2.7.1 just builds fine!
Interestingly, I get the same error with 3.0.0~preview1 as well.

Here are the Debina CI logs: https://salsa.debian.org/ruby-team/ruby/-/jobs/1044445#L8148

Please let me know if you need any more information.

----------------------------------------
Bug #17211: Test failures in ruby2.7.2 and ruby3.0~preview1
https://bugs.ruby-lang.org/issues/17211#change-87878

* Author: utkarsh (Utkarsh Gupta)
* Status: Open
* Priority: Normal
* ruby -v: 2.7.2
* Backport: 2.5: UNKNOWN, 2.6: UNKNOWN, 2.7: UNKNOWN
----------------------------------------
Hello,

Whilst building Ruby 2.7.2 and Ruby 3.0~preview1, I got the following test failures:
```
  1) Failure:
TestIRB::TestHistory#test_history_save_1 [/<<PKGBUILDDIR>>/test/irb/test_history.rb:31]:
<"exit\n"> expected but was
<"1\n" + "2\n" + "3\n" + "4\n">.

  2) Failure:
TestIRB::TestHistory#test_history_save_100 [/<<PKGBUILDDIR>>/test/irb/test_history.rb:51]:
<"1\n" + "2\n" + "3\n" + "4\n" + "5\n" + "exit\n"> expected but was
<"1\n" + "2\n" + "3\n" + "4\n">.

  3) Failure:
TestIRB::TestHistory#test_history_save_bignum [/<<PKGBUILDDIR>>/test/irb/test_history.rb:76]:
<"1\n" + "2\n" + "3\n" + "4\n" + "5\n" + "exit\n"> expected but was
<"1\n" + "2\n" + "3\n" + "4\n">.

  4) Failure:
TestIRB::TestHistory#test_history_save_minus_as_infinity [/<<PKGBUILDDIR>>/test/irb/test_history.rb:101]:
<"1\n" + "2\n" + "3\n" + "4\n" + "5\n" + "exit\n"> expected but was
<"1\n" + "2\n" + "3\n" + "4\n">.

Finished tests in 424.892771s, 49.5113 tests/s, 6415.2304 assertions/s.
21037 tests, 2725785 assertions, 4 failures, 0 errors, 95 skips
```

I am clueless as to what's causing this?
Please note that I tried to build it in a clean environment. But couldn't get these tests to pass, neither in ruby2.7.2 or ruby3.0~preview1.



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