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require 'test/unit'
class TestEncoding < Test::Unit::TestCase
# Test basic encoding methods: list, find, name
def test_encoding
encodings = Encoding.list
assert_equal(encodings.empty?, false)
encodings.each do |e|
assert_equal(e, Encoding.find(e.name))
assert_equal(e, Encoding.find(e.name.upcase))
assert_equal(e, Encoding.find(e.name.capitalize))
assert_equal(e, Encoding.find(e.name.downcase))
end
end
def test_enc_names
aliases = Encoding.aliases
aliases.each do |a, en|
e = Encoding.find(a)
assert_equal(e.name, en)
assert(e.names.include?(a))
end
end
# Test that Encoding objects can't be copied
# And that they can be compared by object_id
def test_singleton
encodings = Encoding.list
encodings.each do |e|
assert_raise(TypeError) { e.dup }
assert_raise(TypeError) { e.clone }
assert_equal(e.object_id, Marshal.load(Marshal.dump(e)).object_id)
end
end
def test_find
assert_raise(ArgumentError) { Encoding.find("foobarbazqux") }
end
def test_dummy_p
assert_equal(true, Encoding::ISO_2022_JP.dummy?)
assert_equal(false, Encoding::UTF_8.dummy?)
end
def test_ascii_compatible_p
assert_equal(true, Encoding::ASCII_8BIT.ascii_compatible?)
assert_equal(true, Encoding::UTF_8.ascii_compatible?)
assert_equal(false, Encoding::UTF_16BE.ascii_compatible?)
assert_equal(false, Encoding::ISO_2022_JP.ascii_compatible?)
end
def test_name_list
assert_instance_of(Array, Encoding.name_list)
Encoding.name_list.each do |x|
assert_instance_of(String, x)
end
end
def test_aliases
assert_instance_of(Hash, Encoding.aliases)
Encoding.aliases.each do |k, v|
assert(Encoding.name_list.include?(k))
assert(Encoding.name_list.include?(v))
assert_instance_of(String, k)
assert_instance_of(String, v)
end
end
def test_marshal
str = "".force_encoding("EUC-JP")
str2 = Marshal.load(Marshal.dump(str))
assert_equal(str, str2)
str2 = Marshal.load(Marshal.dump(str2))
assert_equal(str, str2, '[ruby-dev:38596]')
end
end
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