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-rw-r--r--test/t/string.rb5
1 files changed, 5 insertions, 0 deletions
diff --git a/test/t/string.rb b/test/t/string.rb
index ddc74fa54..c99457d7e 100644
--- a/test/t/string.rb
+++ b/test/t/string.rb
@@ -373,6 +373,11 @@ assert('String#gsub', '15.2.10.5.18') do
assert_equal('A', 'a'.gsub('a'){|w| w.capitalize })
assert_equal("<a><><>", 'a'.gsub('a', '<\0><\1><\2>'))
assert_equal(".h.e.l.l.o.", "hello".gsub("", "."))
+ a = []
+ assert_equal(".h.e.l.l.o.", "hello".gsub("") { |i| a << i; "." })
+ assert_equal(["", "", "", "", "", ""], a)
+ assert_raise(ArgumentError) { "".gsub }
+ assert_raise(ArgumentError) { "".gsub("", "", "") }
end
assert('String#gsub with backslash') do