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encode_custom_classes_test.rb
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encode_custom_classes_test.rb
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# frozen_string_literal: true
require 'test_helper'
module CustomTestClasses
class Inner
include NestedText::ToNTMixin
def initialize(val)
@val = val
end
def self.nt_create(data)
new(data)
end
def encode_nt_with
@val
end
def ==(other)
other.class == self.class && other.state == state
end
alias eql? ==
protected
def state
[@val]
end
end
class Outer
def initialize(attr_a, attr_b, inner)
@list = [attr_a, attr_b]
@inner = inner
end
def self.nt_create(data)
new(*data)
end
def encode_nt_with
[*@list, @inner]
end
def ==(other)
other.class == self.class && other.state == state
end
alias eql? ==
protected
def state
[@list, @inner]
end
end
class Node
attr_reader :value
attr_accessor :nxt
def self.from_enum(enum)
head = nil
node = nil
enum.each do |e|
nnode = Node.new(e)
head = nnode if head.nil?
node.nxt = nnode unless node.nil?
node = nnode
end
head
end
def initialize(value, nxt = nil)
@value = value
@nxt = nxt
end
def ==(other)
other.class == self.class && other.state == state
end
alias eql? ==
def self.nt_create(data)
value = data[0]
nxt = data[1]
new(value, nxt)
end
def encode_nt_with
[@value, @nxt]
end
protected
def state
[@value, @nxt]
end
end
class NotNTEncodable
def to_s
'but it has an to_s method that will be called to represent the object'
end
end
end
class EncodeCustomClassTest < NTTest
def test_custom_class_nil
obj = nil
exp = <<~NT.chomp
__nestedtext_class__: nil
data:
NT
dumped = NestedText.dump(obj)
assert_equal exp, dumped
loaded = NestedText.load(dumped)
assert_nil loaded
end
def test_custom_class_nested
outer = CustomTestClasses::Outer.new('a', 'b', CustomTestClasses::Inner.new('c'))
obj = [outer]
exp = <<~NT.chomp
-
__nestedtext_class__: CustomTestClasses::Outer
data:
- a
- b
-
__nestedtext_class__: CustomTestClasses::Inner
data: c
NT
dumped = NestedText.dump(obj)
assert_equal exp, dumped
loaded = NestedText.load(dumped)
assert_equal obj, loaded
end
def test_custom_class_nested_indented
obj = CustomTestClasses::Outer.new('a', 'b', CustomTestClasses::Inner.new('c'))
exp = <<~NT.chomp
__nestedtext_class__: CustomTestClasses::Outer
data:
- a
- b
-
__nestedtext_class__: CustomTestClasses::Inner
data: c
NT
dumped = NestedText.dump(obj, indentation: 2)
assert_equal exp, dumped
loaded = NestedText.load(dumped)
assert_equal obj, loaded
end
def test_custom_class_method_to_nt
obj = CustomTestClasses::Inner.new('a')
exp = <<~NT.chomp
__nestedtext_class__: CustomTestClasses::Inner
data: a
NT
dumped = obj.to_nt(indentation: 2)
assert_equal exp, dumped
end
def test_custom_class_linked_list
obj = CustomTestClasses::Node.from_enum(%w[a b c])
exp = <<~NT.chomp
__nestedtext_class__: CustomTestClasses::Node
data:
- a
-
__nestedtext_class__: CustomTestClasses::Node
data:
- b
-
__nestedtext_class__: CustomTestClasses::Node
data:
- c
-
__nestedtext_class__: nil
data:
NT
dumped = NestedText.dump(obj)
assert_equal exp, dumped
loaded = NestedText.load(dumped)
assert_equal obj, loaded
end
def test_custom_class_not_encodeable
obj = CustomTestClasses::NotNTEncodable.new
exp = '> but it has an to_s method that will be called to represent the object'
assert_equal exp, NestedText.dump(obj)
end
def test_custom_class_strict_true
obj = CustomTestClasses::Inner.new('c')
assert_raises(ERRORS::DumpUnsupportedTypeError) do
NestedText.dump(obj, strict: true)
end
end
end