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-rw-r--r--test/psych/test_struct.rb51
1 files changed, 51 insertions, 0 deletions
diff --git a/test/psych/test_struct.rb b/test/psych/test_struct.rb
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index 0000000000..44dbab92ed
--- /dev/null
+++ b/test/psych/test_struct.rb
@@ -0,0 +1,51 @@
+require 'test/psych/helper'
+
+class PsychStructWithIvar < Struct.new(:foo)
+ attr_reader :bar
+ def initialize *args
+ super
+ @bar = 'hello'
+ end
+end
+
+module Psych
+ class TestStruct < TestCase
+ class StructSubclass < Struct.new(:foo)
+ def initialize foo, bar
+ super(foo)
+ @bar = bar
+ end
+ end
+
+ def test_self_referential_struct
+ ss = StructSubclass.new(nil, 'foo')
+ ss.foo = ss
+
+ loaded = Psych.load(Psych.dump(ss))
+ assert_instance_of(StructSubclass, loaded.foo)
+
+ # FIXME: This seems to cause an infinite loop. wtf. Must report a bug
+ # in ruby.
+ # assert_equal(ss, loaded)
+ end
+
+ def test_roundtrip
+ thing = PsychStructWithIvar.new('bar')
+ struct = Psych.load(Psych.dump(thing))
+
+ assert_equal 'hello', struct.bar
+ assert_equal 'bar', struct.foo
+ end
+
+ def test_load
+ obj = Psych.load(<<-eoyml)
+--- !ruby/struct:PsychStructWithIvar
+:foo: bar
+:@bar: hello
+ eoyml
+
+ assert_equal 'hello', obj.bar
+ assert_equal 'bar', obj.foo
+ end
+ end
+end