From: "no6v (Nobuhiro IMAI)" <nov@...>
Date: 2013-05-18T06:46:57+09:00
Subject: [ruby-core:55035] [ruby-trunk - Bug #8417][Open] assert_in_epsilon(-1, -1) failed


Issue #8417 has been reported by no6v (Nobuhiro IMAI).

----------------------------------------
Bug #8417: assert_in_epsilon(-1, -1) failed
https://bugs.ruby-lang.org/issues/8417

Author: no6v (Nobuhiro IMAI)
Status: Open
Priority: Normal
Assignee: 
Category: lib
Target version: 
ruby -v: ruby 2.1.0dev (2013-05-18 trunk 40801) [x86_64-linux]
Backport: 1.9.3: UNKNOWN, 2.0.0: UNKNOWN


=begin
assert_in_epsilon(-1, -1) failed as below:

 require "test/unit"

 class AssertInEpsilonTest < Test::Unit::TestCase
   def test_plus
     assert_in_epsilon(1, 1)
   end

   def test_minus
     assert_in_epsilon(-1, -1)
   end
 end

 # >> Loaded suite -
 # >> Started
 # >> F
 # >> ===============================================================================
 # >> Failure:
 # >>   <-1> -/+ (<-1> * <0.001>)[-0.001] expected to include
 # >>   <-1>.
 # >>
 # >>   Relation:
 # >>   <<-1> < <-1>-(<-1>*<0.001>)[-0.999] <= <-1>+(<-1>*<0.001>)[-1.001]>
 # >> test_minus(AssertInEpsilonTest)
 # >> -:9:in `test_minus'
 # >> ===============================================================================
 # >> .
 # >>
 # >> Finished in 0.01199642 seconds.
 # >>
 # >> 2 tests, 2 assertions, 1 failures, 0 errors, 0 pendings, 0 omissions, 0 notifications
 # >> 50% passed
 # >>
 # >> 166.72 tests/s, 166.72 assertions/s

Though I'm not sure the difference between "test" and "minitest",
minitest seems to be succeeded.

 require "minitest/unit"

 MiniTest::Unit::TestCase.new(?-).assert_in_epsilon(-1, -1) 
=end



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