* test/ruby/test_math.rb(test_cbrt): Add an assertion for Math.cbrt(1.0/0)

  and move #test_cbrt to more proper place.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@49722 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 8 insertions, 7 deletions

diff --git a/test/ruby/test_math.rb b/test/ruby/test_math.rb
index c4d0ff93f2..a6d2df284e 100644
--- a/test/ruby/test_math.rb
+++ b/test/ruby/test_math.rb
@@ -183,6 +183,14 @@ class TestMath < Test::Unit::TestCase
     assert_raise(Math::DomainError) { Math.sqrt(-1.0) }
   end
 
+  def test_cbrt
+    check(1, Math.cbrt(1))
+    check(-2, Math.cbrt(-8))
+    check(3, Math.cbrt(27))
+    check(-0.1, Math.cbrt(-0.001))
+    assert_nothing_raised { assert_infinity(Math.cbrt(1.0/0)) }
+  end
+
   def test_frexp
     check(0.0, Math.frexp(0.0).first)
     assert_equal(0, Math.frexp(0).last)
@@ -282,11 +290,4 @@ class TestMath < Test::Unit::TestCase
 
     assert_raise(Math::DomainError) { Math.lgamma(-Float::INFINITY) }
   end
-
-  def test_cbrt
-    check(1, Math.cbrt(1))
-    check(-2, Math.cbrt(-8))
-    check(3, Math.cbrt(27))
-    check(-0.1, Math.cbrt(-0.001))
-  end
 end