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require 'psych/helper'
class ObjectWithInstanceVariables
attr_accessor :var1, :var2
end
class SubStringWithInstanceVariables < String
attr_accessor :var1
end
module Psych
class TestAliasAndAnchor < TestCase
def test_mri_compatibility
yaml = <<EOYAML
---
- &id001 !ruby/object {}
- *id001
- *id001
EOYAML
result = Psych.load yaml
result.each {|el| assert_same(result[0], el) }
end
def test_mri_compatibility_object_with_ivars
yaml = <<EOYAML
---
- &id001 !ruby/object:ObjectWithInstanceVariables
var1: test1
var2: test2
- *id001
- *id001
EOYAML
result = Psych.load yaml
result.each do |el|
assert_same(result[0], el)
assert_equal('test1', el.var1)
assert_equal('test2', el.var2)
end
end
def test_mri_compatibility_substring_with_ivars
yaml = <<EOYAML
---
- &id001 !str:SubStringWithInstanceVariables
str: test
"@var1": test
- *id001
- *id001
EOYAML
result = Psych.load yaml
result.each do |el|
assert_same(result[0], el)
assert_equal('test', el.var1)
end
end
def test_anchor_alias_round_trip
o = Object.new
original = [o,o,o]
yaml = Psych.dump original
result = Psych.load yaml
result.each {|el| assert_same(result[0], el) }
end
def test_anchor_alias_round_trip_object_with_ivars
o = ObjectWithInstanceVariables.new
o.var1 = 'test1'
o.var2 = 'test2'
original = [o,o,o]
yaml = Psych.dump original
result = Psych.load yaml
result.each do |el|
assert_same(result[0], el)
assert_equal('test1', el.var1)
assert_equal('test2', el.var2)
end
end
def test_anchor_alias_round_trip_substring_with_ivars
o = SubStringWithInstanceVariables.new
o.var1 = 'test'
original = [o,o,o]
yaml = Psych.dump original
result = Psych.load yaml
result.each do |el|
assert_same(result[0], el)
assert_equal('test', el.var1)
end
end
end
end
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