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-rw-r--r--test/ruby/test_float.rb1
1 files changed, 1 insertions, 0 deletions
diff --git a/test/ruby/test_float.rb b/test/ruby/test_float.rb
index 2e879bdd2f..fb37d73831 100644
--- a/test/ruby/test_float.rb
+++ b/test/ruby/test_float.rb
@@ -322,6 +322,7 @@ class TestFloat < Test::Unit::TestCase
assert_equal(11100.0, 11111.1.round(-2))
assert_equal(10**300, 1.1e300.round(-300))
+ assert_equal(-10**300, -1.1e300.round(-300))
end
VS = [