[ruby-core:96163] [Ruby master Bug#16361] TestEnv#test_fetch failure

Issue #16361 has been updated by vo.x (Vit Ondruch).


And I can trigger different errors:

~~~
$ make test-all TUST="" TESTS="test/optparse/test_did_you_mean.rb test/ruby/test_env.rb"
fatal: not a git repository (or any of the parent directories): .git
./revision.h unchanged
Run options: "--ruby=./miniruby -I./lib -I. -I.ext/common  ./tool/runruby.rb --extout=.ext  -- --disable-gems" --excludes-dir=./test/excludes --name=!/memory_leak/

# Running tests:

[11/55] TestEnv#test_fetch = 0.00 s               
  1) Failure:
TestEnv#test_fetch [/builddir/ruby-2.7.0-053f78e139/test/ruby/test_env.rb:123]:
[ruby-core:56062] [Feature #8649].
Expected Exception(KeyError) was raised, but the message doesn't match.
<"key not found: \"test\""> expected but was
<"key not found: \"test\"\n" +
"Did you mean?  \"TUST\"\n" +
"               \"TESTS\"">.

Finished tests in 0.025079s, 2193.0325 tests/s, 32177.7674 assertions/s.  
55 tests, 807 assertions, 1 failures, 0 errors, 0 skips

ruby -v: ruby 2.7.0dev (2019-11-22 master 053f78e139) [x86_64-linux]
make: *** [uncommon.mk:780: yes-test-all] Error 1
~~~

----------------------------------------
Bug #16361: TestEnv#test_fetch failure
https://bugs.ruby-lang.org/issues/16361#change-83041

* Author: vo.x (Vit Ondruch)
* Status: Open
* Priority: Normal
* Assignee: 
* Target version: 
* ruby -v: ruby 2.7.0dev (2019-11-22 master f9d20a1bf1) [x86_64-linux]
* Backport: 2.5: UNKNOWN, 2.6: UNKNOWN
----------------------------------------
I am facing following test suite error:

~~~
  1) Failure:
TestEnv#test_fetch [/builddir/build/BUILD/ruby-2.7.0-f9d20a1bf1/test/ruby/test_env.rb:123]:
[ruby-core:56062] [Feature #8649].
Expected Exception(KeyError) was raised, but the message doesn't match.
<"key not found: \"test\""> expected but was
<"key not found: \"test\"\n" + "Did you mean?  \"TESTS\"">.
~~~

Trying to execute this test independently, it passes just fine. So it seems that the did_you_mean gem is loaded unexpectedly on this place. I just tried:

~~~
mv test/optparse/test_did_you_mean.rb{,.bak}
~~~

since this is the latest addition IMO and the test suite passes just fine.

I am not really sure why it should fail on my setup and it probably does not fail in any other CI. Neither I am sure what would be the best option to fix this. The assertion could be updated to accept this message by simple sed:

~~~
sed -i "/'key not found: \"test\"'/ s/'/\//g" test/ruby/test_env.rb
~~~



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