[ruby-core:81421] [Ruby trunk Bug#13591] spec/rubyspec/core/time/zone_spec - Windows does not support ENV['TZ']

[Greg.mpls@gmail.com]

Issue #13591 has been updated by MSP-Greg (Greg L).


Sorry for the delay, I'm at -0500 (Central US), and I seem to have lost a video card this morning.

Anyway, error is identical to [mingw mspec](https://msp-greg.github.io/file.mingw_test-all.html#mspec-1-failure).  Below is the full rubyspec results from nmake (I believe the 2nd failure is intermittent):

```
1)
Time#zone defaults to UTC when bad zones given FAILED
Expected 3600
 to equal 0

E:/build/mswin-build/ruby/spec/rubyspec/core/time/zone_spec.rb:68:in `block (4 levels) in <top (required)>'
E:/build/mswin-build/ruby/spec/rubyspec/core/time/zone_spec.rb:67:in `block (3 levels) in <top (required)>'
E:/build/mswin-build/ruby/spec/rubyspec/core/time/zone_spec.rb:3:in `<top (required)>'

2)
C-API Thread function rb_thread_call_without_gvl runs a C function with the global lock unlocked FAILED
Expected nil not to be nil
E:/build/mswin-build/ruby/spec/rubyspec/optional/capi/thread_spec.rb:114:in `block (3 levels) in <top (required)>'
E:/build/mswin-build/ruby/spec/rubyspec/optional/capi/thread_spec.rb:16:in `<top (required)>'

Finished in 214.546800 seconds

3568 files, 25779 examples, 202018 expectations, 2 failures, 0 errors, 0 tagged
NMAKE : fatal error U1077: '.\ruby.exe' : return code '0x1'
```

I've got recent mswin and mingw builds, and did some irb exploring. On windows, ENV['TZ'] seems like a read-only setting.

My mingw/MSYS2 env is up to date, and I run as much of my building from the command prompt as possible, with only what is required in PATH.  As to MinGW, I've built several OpenSSL packages (which pass all OpenSSL and Ruby OpenSSL tests), and a GDBM package. The doc site is generated from recent mingw builds, and I've got curses, eventmachine w/SSL, libxml, nokogiri, rdiscount, redcarpet, RedCloth, and Thin gem extensions installed.

I'm building mswin with VS2017, and I'm using Win7.  I may have OpenSSL-Win 1.1.0f configured wrong, as I've got an issue in test-all that stops it.  I hope to get mswin test-all completing soon.  Previous builds seemed to show a segv issue that also occurred in MinGW builds with `test_enum.rb` / `TestEnumerable#test_callcc`.

----------------------------------------
Bug #13591: spec/rubyspec/core/time/zone_spec - Windows does not support ENV['TZ']
https://bugs.ruby-lang.org/issues/13591#change-65132

* Author: MSP-Greg (Greg L)
* Status: Feedback
* Priority: Normal
* Assignee: Eregon (Benoit Daloze)
* Target version: 
* ruby -v: ruby 2.5.0dev (2017-05-27 trunk 58911) [x64-mswin64_140]
* Backport: 2.2: UNKNOWN, 2.3: UNKNOWN, 2.4: UNKNOWN
----------------------------------------
Windows does not support ENV['TZ'], so it should be removed from rspec tests.

See [GitHub PR 1627](https://github.com/ruby/ruby/pull/1627)



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