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-rw-r--r--test/ruby/test_range.rb3
1 files changed, 3 insertions, 0 deletions
diff --git a/test/ruby/test_range.rb b/test/ruby/test_range.rb
index 0df0a985ad..2c07cef96e 100644
--- a/test/ruby/test_range.rb
+++ b/test/ruby/test_range.rb
@@ -777,6 +777,9 @@ class TestRange < Test::Unit::TestCase
assert_equal 5, (1.1...6).size
assert_equal 42, (1..42).each.size
assert_nil ("a"..."z").size
+ assert_nil ("a"...).size
+ assert_nil (..."z").size # [Bug #18983]
+ assert_nil (nil...nil).size # [Bug #18983]
assert_equal Float::INFINITY, (1...).size
assert_equal Float::INFINITY, (1.0...).size