3 files changed, 0 insertions, 19 deletions
diff --git a/test/ruby/test_array.rb b/test/ruby/test_array.rb
index fbc0790f0f..d797ee8164 100644
--- a/test/ruby/test_array.rb
+++ b/test/ruby/test_array.rb
@@ -2859,10 +2859,6 @@ class TestArray < Test::Unit::TestCase
 
     assert_raise(TypeError) {[0].sum("")}
     assert_raise(TypeError) {[1].sum("")}
-
-    assert_separately(%w[-rmathn], <<-EOS, ignore_stderr: true)
-      assert_equal(6, [1r, 2, 3r].sum)
-    EOS
   end
 
   private
diff --git a/test/ruby/test_enum.rb b/test/ruby/test_enum.rb
index 27d406680a..f44d025c09 100644
--- a/test/ruby/test_enum.rb
+++ b/test/ruby/test_enum.rb
@@ -907,10 +907,6 @@ class TestEnumerable < Test::Unit::TestCase
 
     assert_equal("abc", ["a", "b", "c"].each.sum(""))
     assert_equal([1, [2], 3], [[1], [[2]], [3]].each.sum([]))
-
-    assert_separately(%w[-rmathn], <<-EOS, ignore_stderr: true)
-      assert_equal(6, [1r, 2, 3r].each.sum)
-    EOS
   end
 
   def test_hash_sum
diff --git a/test/ruby/test_range.rb b/test/ruby/test_range.rb
index 1ce3f0663a..3743e9dda6 100644
--- a/test/ruby/test_range.rb
+++ b/test/ruby/test_range.rb
@@ -640,17 +640,6 @@ class TestRange < Test::Unit::TestCase
     assert_raise(TypeError) { ("a".."z").bsearch {} }
   end
 
-  def test_bsearch_with_mathn
-    assert_separately ['-r', 'mathn'], %q{
-      msg = '[ruby-core:25740]'
-      answer = (1..(1 << 100)).bsearch{|x|
-        assert_predicate(x, :integer?, msg)
-        x >= 42
-      }
-      assert_equal(42, answer, msg)
-    }, ignore_stderr: true
-  end
-
   def test_each_no_blockarg
     a = "a"
     def a.upto(x, e, &b)