Issue #12597 has been reported by Martin Drst.

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Bug #12597: Produce test failure if some tests cannot be executed due to lacking data
https://bugs.ruby-lang.org/issues/12597

* Author: Martin Drst
* Status: Open
* Priority: Normal
* Assignee: Nobuyoshi Nakada
* ruby -v: ruby 2.4.0dev (2016-07-19 trunk 55704) [x86_64-cygwin]
* Backport: 2.1: UNKNOWN, 2.2: UNKNOWN, 2.3: UNKNOWN
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In some cases, some files (such as Unicode data files) may be missing and cannot be downloaded.

In these cases, tests should not fail silently. It is not good to produce a long list of test failures when there is only a single problem. Therefore, e.g. test/ruby/enc/test_case_comprehensive.rb up to r55520 produced a single explicit failure when tests were missing.

In revision r55521, this test was removed, but it should be reinstated to avoid silent failure.



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