[ruby-core:119653] [Ruby master Bug#20857] Don't change `Hash#inspect` formatting

["mame (Yusuke Endoh) via ruby-core" <ruby-core@ml.ruby-lang.org>]

Issue #20857 has been updated by mame (Yusuke Endoh).


I ran the asciidoctor test and he have already fixed it. Awesome.

To my knowledge, this change has never required any substantive modification other than updating expectation values of test cases. And in principle, you know, it is not recommended to use `#inspect` results for test expectations. Of course, this does not mean that we can break compatibility just on this principle, though.

> there have failed to build 127 out of 528 packages.

How many of the failures are due to this change?

----------------------------------------
Bug #20857: Don't change `Hash#inspect` formatting
https://bugs.ruby-lang.org/issues/20857#change-110307

* Author: vo.x (Vit Ondruch)
* Status: Assigned
* Assignee: matz (Yukihiro Matsumoto)
* ruby -v: ruby 3.4.0dev (2024-10-15 master 3da3cabf98) +PRISM [x86_64-linux]
* Backport: 3.1: UNKNOWN, 3.2: UNKNOWN, 3.3: UNKNOWN
----------------------------------------
Testing Ruby 3.4 in Fedora, I just hit issue like this in AsciiDoctor test suite:

~~~
  1) Failure:
Minitest::Test::TestExtensions::TestIntegration#test_should_assign_captures_correctly_for_inline_macros [test/extensions_test.rb:1382]:
--- expected
+++ actual
@@ -1,9 +1,9 @@
 "target=\"\", attributes={}
-target=\"value,key=val\", attributes={1=>\"value\", \"key\"=>\"val\", \"name\"=>\"value\"}
-target=\"\", attributes={\"text\"=>\"\"}
-target=\"[text]\", attributes={\"text\"=>\"[text]\"}
+target=\"value,key=val\", attributes={1 => \"value\", \"key\" => \"val\", \"name\" => \"value\"}
+target=\"\", attributes={\"text\" => \"\"}
+target=\"[text]\", attributes={\"text\" => \"[text]\"}
 target=\"target\", attributes={}
-target=\"target\", attributes={1=>\"value\", \"key\"=>\"val\", \"name\"=>\"value\"}
-target=\"target\", attributes={\"text\"=>\"\"}
-target=\"target\", attributes={\"text\"=>\"[text]\"}
+target=\"target\", attributes={1 => \"value\", \"key\" => \"val\", \"name\" => \"value\"}
+target=\"target\", attributes={\"text\" => \"\"}
+target=\"target\", attributes={\"text\" => \"[text]\"}
 target=\"target\", attributes={}"
~~~

This suggest that `Hash#inspect` formatting was changed and there are additional spaces around hash rocket. Is the space really worth of the troubles? BTW [here](https://github.com/asciidoctor/asciidoctor/issues/4634#issuecomment-2449497487) is AsciiDoctor upstream reaction and I share the sentiment.



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