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-rw-r--r--test/t/string.rb8
1 files changed, 8 insertions, 0 deletions
diff --git a/test/t/string.rb b/test/t/string.rb
index f38790c17..ee969a696 100644
--- a/test/t/string.rb
+++ b/test/t/string.rb
@@ -319,3 +319,11 @@ assert('String#upcase!', '15.2.10.5.43') do
a == 'ABC'
end
+
+# Not ISO specified
+
+assert('String interpolation (mrb_str_concat for shared strings)') do
+ a = "A" * 32
+ "#{a}:" == "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA:"
+end
+