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require 'test/unit'
require 'ostruct'
class TC_OpenStruct < Test::Unit::TestCase
def test_initialize
h = {name: "John Smith", age: 70, pension: 300}
assert_equal h, OpenStruct.new(h).to_h
assert_equal h, OpenStruct.new(OpenStruct.new(h)).to_h
assert_equal h, OpenStruct.new(Struct.new(*h.keys).new(*h.values)).to_h
end
def test_equality
o1 = OpenStruct.new
o2 = OpenStruct.new
assert_equal(o1, o2)
o1.a = 'a'
assert_not_equal(o1, o2)
o2.a = 'a'
assert_equal(o1, o2)
o1.a = 'b'
assert_not_equal(o1, o2)
o2 = Object.new
o2.instance_eval{@table = {:a => 'b'}}
assert_not_equal(o1, o2)
end
def test_inspect
foo = OpenStruct.new
assert_equal("#<OpenStruct>", foo.inspect)
foo.bar = 1
foo.baz = 2
assert_equal("#<OpenStruct bar=1, baz=2>", foo.inspect)
foo = OpenStruct.new
foo.bar = OpenStruct.new
assert_equal('#<OpenStruct bar=#<OpenStruct>>', foo.inspect)
foo.bar.foo = foo
assert_equal('#<OpenStruct bar=#<OpenStruct foo=#<OpenStruct ...>>>', foo.inspect)
end
def test_frozen
o = OpenStruct.new
o.a = 'a'
o.freeze
assert_raise(RuntimeError) {o.b = 'b'}
assert_not_respond_to(o, :b)
assert_raise(RuntimeError) {o.a = 'z'}
assert_equal('a', o.a)
o = OpenStruct.new :a => 42
def o.frozen?; nil end
o.freeze
assert_raise(RuntimeError, '[ruby-core:22559]') {o.a = 1764}
end
def test_delete_field
bug = '[ruby-core:33010]'
o = OpenStruct.new
assert_not_respond_to(o, :a)
assert_not_respond_to(o, :a=)
o.a = 'a'
assert_respond_to(o, :a)
assert_respond_to(o, :a=)
a = o.delete_field :a
assert_not_respond_to(o, :a, bug)
assert_not_respond_to(o, :a=, bug)
assert_equal(a, 'a')
s = Object.new
def s.to_sym
:foo
end
o[s] = true
assert_respond_to(o, :foo)
assert_respond_to(o, :foo=)
o.delete_field s
assert_not_respond_to(o, :foo)
assert_not_respond_to(o, :foo=)
end
def test_setter
os = OpenStruct.new
os[:foo] = :bar
assert_equal :bar, os.foo
os['foo'] = :baz
assert_equal :baz, os.foo
end
def test_getter
os = OpenStruct.new
os.foo = :bar
assert_equal :bar, os[:foo]
assert_equal :bar, os['foo']
end
def test_to_h
h = {name: "John Smith", age: 70, pension: 300}
os = OpenStruct.new(h)
to_h = os.to_h
assert_equal(h, to_h)
to_h[:age] = 71
assert_equal(70, os.age)
assert_equal(70, h[:age])
assert_equal(h, OpenStruct.new("name" => "John Smith", "age" => 70, pension: 300).to_h)
end
def test_each_pair
h = {name: "John Smith", age: 70, pension: 300}
os = OpenStruct.new(h)
assert_equal '#<Enumerator: #<OpenStruct name="John Smith", age=70, pension=300>:each_pair>', os.each_pair.inspect
assert_equal [[:name, "John Smith"], [:age, 70], [:pension, 300]], os.each_pair.to_a
assert_equal 3, os.each_pair.size
end
def test_eql_and_hash
os1 = OpenStruct.new age: 70
os2 = OpenStruct.new age: 70.0
assert_equal os1, os2
assert_equal false, os1.eql?(os2)
assert_not_equal os1.hash, os2.hash
assert_equal true, os1.eql?(os1.dup)
assert_equal os1.hash, os1.dup.hash
end
def test_method_missing
os = OpenStruct.new
e = assert_raise(NoMethodError) { os.foo true }
assert_equal :foo, e.name
assert_equal [true], e.args
assert_match(/#{__callee__}/, e.backtrace[0])
e = assert_raise(ArgumentError) { os.send :foo=, true, true }
assert_match(/#{__callee__}/, e.backtrace[0])
end
end
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