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-rw-r--r--test/ruby/test_module.rb11
1 files changed, 11 insertions, 0 deletions
diff --git a/test/ruby/test_module.rb b/test/ruby/test_module.rb
index 9d6e13d676..8413c4782b 100644
--- a/test/ruby/test_module.rb
+++ b/test/ruby/test_module.rb
@@ -1725,6 +1725,17 @@ class TestModule < Test::Unit::TestCase
assert_equal('hello!', foo.new.hello, bug9236)
end
+ def test_multiple_prepend
+ m = labeled_module("M")
+ c1 = labeled_class("C1") {
+ prepend m
+ }
+ c2 = labeled_class("C2", c1) {
+ prepend m
+ }
+ assert_equal([m, c2, m, c1], c2.ancestors[0, 4])
+ end
+
def test_class_variables
m = Module.new
m.class_variable_set(:@@foo, 1)