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# -*- coding: us-ascii -*-
# frozen_string_literal: false
require 'test/unit'
require 'timeout'
module TestStruct
def test_struct
struct_test = @Struct.new("Test", :foo, :bar)
assert_equal(@Struct::Test, struct_test)
test = struct_test.new(1, 2)
assert_equal(1, test.foo)
assert_equal(2, test.bar)
assert_equal(1, test[0])
assert_equal(2, test[1])
a, b = test.to_a
assert_equal(1, a)
assert_equal(2, b)
test[0] = 22
assert_equal(22, test.foo)
test.bar = 47
assert_equal(47, test.bar)
@Struct.class_eval do
remove_const :Test
end
end
# [ruby-dev:26247] more than 10 struct members causes segmentation fault
def test_morethan10members
list = %w( a b c d e f g h i j k l m n o p )
until list.empty?
c = @Struct.new(* list.map {|ch| ch.intern }).new
list.each do |ch|
c.__send__(ch)
end
list.pop
end
end
def test_small_structs
names = [:a, :b, :c, :d]
1.upto(4) {|n|
fields = names[0, n]
klass = @Struct.new(*fields)
o = klass.new(*(0...n).to_a)
fields.each_with_index {|name, i|
assert_equal(i, o[name])
}
o = klass.new(*(0...n).to_a.reverse)
fields.each_with_index {|name, i|
assert_equal(n-i-1, o[name])
}
}
end
def test_inherit
klass = @Struct.new(:a)
klass2 = Class.new(klass)
o = klass2.new(1)
assert_equal(1, o.a)
end
def test_attrset_id
assert_raise(ArgumentError) { Struct.new(:x=) }
end
def test_members
klass = @Struct.new(:a)
o = klass.new(1)
assert_equal([:a], klass.members)
assert_equal([:a], o.members)
end
def test_ref
klass = @Struct.new(:a)
o = klass.new(1)
assert_equal(1, o[:a])
assert_raise(NameError) { o[:b] }
end
def test_set
klass = @Struct.new(:a)
o = klass.new(1)
o[:a] = 2
assert_equal(2, o[:a])
assert_raise(NameError) { o[:b] = 3 }
end
def test_struct_new
assert_raise(NameError) { @Struct.new("foo") }
assert_nothing_raised { @Struct.new("Foo") }
@Struct.instance_eval { remove_const(:Foo) }
assert_nothing_raised { @Struct.new(:a) { } }
assert_raise(RuntimeError) { @Struct.new(:a) { raise } }
assert_equal([:utime, :stime, :cutime, :cstime], Process.times.members)
end
def test_struct_new_with_empty_hash
assert_equal({:a=>1}, Struct.new(:a, {}).new({:a=>1}).a)
end
def test_struct_new_with_keyword_init
@Struct.new("KeywordInitTrue", :a, :b, keyword_init: true)
@Struct.new("KeywordInitFalse", :a, :b, keyword_init: false)
assert_raise(ArgumentError) { @Struct::KeywordInitTrue.new(1, 2) }
assert_raise(ArgumentError) { @Struct::KeywordInitTrue.new({a: 100}, 2) }
assert_nothing_raised { @Struct::KeywordInitFalse.new(1, 2) }
assert_nothing_raised { @Struct::KeywordInitTrue.new(a: 1, b: 2) }
assert_raise(ArgumentError) { @Struct::KeywordInitTrue.new(1, b: 2) }
assert_raise(ArgumentError) { @Struct::KeywordInitTrue.new(a: 1, b: 2, c: 3) }
assert_equal @Struct::KeywordInitTrue.new(a: 1, b: 2).values, @Struct::KeywordInitFalse.new(1, 2).values
assert_equal "#{@Struct}::KeywordInitFalse", @Struct::KeywordInitFalse.inspect
assert_equal "#{@Struct}::KeywordInitTrue(keyword_init: true)", @Struct::KeywordInitTrue.inspect
# eval is needed to prevent the warning duplication filter
k = Class.new(@Struct::KeywordInitTrue) {def initialize(b, options); super(a: options, b: b); end}
o = assert_warn('') { k.new(42, {foo: 1, bar: 2}) }
assert_equal(1, o.a[:foo])
@Struct.instance_eval do
remove_const(:KeywordInitTrue)
remove_const(:KeywordInitFalse)
end
end
def test_struct_new_with_keyword_init_and_block
struct = @Struct.new(:a, :b, keyword_init: true) do
def c
a + b
end
end
assert_equal(3, struct.new(a: 1, b: 2).c)
end
def test_struct_keyword_init_p
struct = @Struct.new(:a, :b, keyword_init: true)
assert_equal(true, struct.keyword_init?)
struct = @Struct.new(:a, :b, keyword_init: false)
assert_equal(false, struct.keyword_init?)
struct = @Struct.new(:a, :b)
assert_nil(struct.keyword_init?)
end
def test_initialize
klass = @Struct.new(:a)
assert_raise(ArgumentError) { klass.new(1, 2) }
klass = @Struct.new(:total) do
def initialize(a, b)
super(a+b)
end
end
assert_equal 3, klass.new(1,2).total
end
def test_initialize_with_kw
klass = @Struct.new(:foo, :options) do
def initialize(foo, **options)
super(foo, options)
end
end
assert_equal({}, klass.new(42, **Hash.new).options)
x = assert_warn('') { klass.new(1, bar: 2) }
assert_equal 2, x.options[:bar]
end
def test_each
klass = @Struct.new(:a, :b)
o = klass.new(1, 2)
assert_equal([1, 2], o.each.to_a)
end
def test_each_pair
klass = @Struct.new(:a, :b)
o = klass.new(1, 2)
assert_equal([[:a, 1], [:b, 2]], o.each_pair.to_a)
bug7382 = '[ruby-dev:46533]'
a = []
o.each_pair {|x| a << x}
assert_equal([[:a, 1], [:b, 2]], a, bug7382)
end
def test_inspect
klass = @Struct.new(:a)
o = klass.new(1)
assert_equal("#<struct a=1>", o.inspect)
o.a = o
assert_match(/^#<struct a=#<struct #<.*?>:...>>$/, o.inspect)
@Struct.new("Foo", :a)
o = @Struct::Foo.new(1)
assert_equal("#<struct #@Struct::Foo a=1>", o.inspect)
@Struct.instance_eval { remove_const(:Foo) }
klass = @Struct.new(:a, :b)
o = klass.new(1, 2)
assert_equal("#<struct a=1, b=2>", o.inspect)
klass = @Struct.new(:@a)
o = klass.new(1)
assert_equal(1, o.__send__(:@a))
assert_equal("#<struct :@a=1>", o.inspect)
o.__send__(:"@a=", 2)
assert_equal(2, o.__send__(:@a))
assert_equal("#<struct :@a=2>", o.inspect)
o.__send__("@a=", 3)
assert_equal(3, o.__send__(:@a))
assert_equal("#<struct :@a=3>", o.inspect)
methods = klass.instance_methods(false)
assert_equal([:@a, :"@a="].sort.inspect, methods.sort.inspect, '[Bug #8756]')
assert_include(methods, :@a)
assert_include(methods, :"@a=")
end
def test_init_copy
klass = @Struct.new(:a)
o = klass.new(1)
assert_equal(o, o.dup)
end
def test_aref
klass = @Struct.new(:a)
o = klass.new(1)
assert_equal(1, o[0])
assert_raise_with_message(IndexError, /offset -2\b/) {o[-2]}
assert_raise_with_message(IndexError, /offset 1\b/) {o[1]}
assert_raise_with_message(NameError, /foo/) {o["foo"]}
assert_raise_with_message(NameError, /foo/) {o[:foo]}
end
def test_aset
klass = @Struct.new(:a)
o = klass.new(1)
o[0] = 2
assert_equal(2, o[:a])
assert_raise_with_message(IndexError, /offset -2\b/) {o[-2] = 3}
assert_raise_with_message(IndexError, /offset 1\b/) {o[1] = 3}
assert_raise_with_message(NameError, /foo/) {o["foo"] = 3}
assert_raise_with_message(NameError, /foo/) {o[:foo] = 3}
end
def test_values_at
klass = @Struct.new(:a, :b, :c, :d, :e, :f)
o = klass.new(1, 2, 3, 4, 5, 6)
assert_equal([2, 4, 6], o.values_at(1, 3, 5))
assert_equal([2, 3, 4, 3, 4, 5], o.values_at(1..3, 2...5))
end
def test_select
klass = @Struct.new(:a, :b, :c, :d, :e, :f)
o = klass.new(1, 2, 3, 4, 5, 6)
assert_equal([1, 3, 5], o.select {|v| v % 2 != 0 })
assert_raise(ArgumentError) { o.select(1) }
end
def test_filter
klass = @Struct.new(:a, :b, :c, :d, :e, :f)
o = klass.new(1, 2, 3, 4, 5, 6)
assert_equal([1, 3, 5], o.filter {|v| v % 2 != 0 })
assert_raise(ArgumentError) { o.filter(1) }
end
def test_big_struct
klass1 = @Struct.new(*('a'..'z').map(&:to_sym))
o = klass1.new
assert_nil o.z
assert_equal(:foo, o.z = :foo)
assert_equal(:foo, o.z)
assert_equal(:foo, o[25])
end
def test_overridden_aset
bug10601 = '[ruby-core:66846] [Bug #10601]: should not be affected by []= method'
struct = Class.new(Struct.new(*(:a..:z), :result)) do
def []=(*args)
raise args.inspect
end
end
obj = struct.new
assert_nothing_raised(RuntimeError, bug10601) do
obj.result = 42
end
assert_equal(42, obj.result, bug10601)
end
def test_overridden_aref
bug10601 = '[ruby-core:66846] [Bug #10601]: should not be affected by [] method'
struct = Class.new(Struct.new(*(:a..:z), :result)) do
def [](*args)
raise args.inspect
end
end
obj = struct.new
obj.result = 42
result = assert_nothing_raised(RuntimeError, bug10601) do
break obj.result
end
assert_equal(42, result, bug10601)
end
def test_equal
klass1 = @Struct.new(:a)
klass2 = @Struct.new(:a, :b)
o1 = klass1.new(1)
o2 = klass1.new(1)
o3 = klass2.new(1)
assert_equal(o1, o2)
assert_not_equal(o1, o3)
end
def test_hash
klass = @Struct.new(:a)
o = klass.new(1)
assert_kind_of(Integer, o.hash)
assert_kind_of(String, o.hash.to_s)
end
def test_eql
klass1 = @Struct.new(:a)
klass2 = @Struct.new(:a, :b)
o1 = klass1.new(1)
o2 = klass1.new(1)
o3 = klass2.new(1)
assert_operator(o1, :eql?, o2)
assert_not_operator(o1, :eql?, o3)
end
def test_size
klass = @Struct.new(:a)
o = klass.new(1)
assert_equal(1, o.size)
end
def test_error
assert_raise(TypeError){
@Struct.new(0)
}
end
def test_redefinition_warning
@Struct.new(name = "RedefinitionWarning")
e = EnvUtil.verbose_warning do
@Struct.new("RedefinitionWarning")
end
assert_match(/redefining constant #@Struct::RedefinitionWarning/, e)
@Struct.class_eval do
remove_const name
end
end
def test_keyword_args_warning
warning = /warning: Passing only keyword arguments to Struct#initialize will behave differently from Ruby 3\.2\./
assert_warn(warning) { assert_equal({a: 1}, @Struct.new(:a).new(a: 1).a) }
assert_warn(warning) { assert_equal({a: 1}, @Struct.new(:a, keyword_init: nil).new(a: 1).a) }
assert_warn('') { assert_equal({a: 1}, @Struct.new(:a).new({a: 1}).a) }
assert_warn('') { assert_equal({a: 1}, @Struct.new(:a, :b).new(1, a: 1).b) }
assert_warn('') { assert_equal(1, @Struct.new(:a, keyword_init: true).new(a: 1).a) }
assert_warn('') { assert_equal({a: 1}, @Struct.new(:a, keyword_init: nil).new({a: 1}).a) }
assert_warn('') { assert_equal({a: 1}, @Struct.new(:a, keyword_init: false).new(a: 1).a) }
assert_warn('') { assert_equal({a: 1}, @Struct.new(:a, keyword_init: false).new({a: 1}).a) }
end
def test_nonascii
struct_test = @Struct.new(name = "R\u{e9}sum\u{e9}", :"r\u{e9}sum\u{e9}")
assert_equal(@Struct.const_get("R\u{e9}sum\u{e9}"), struct_test, '[ruby-core:24849]')
a = struct_test.new(42)
assert_equal("#<struct #@Struct::R\u{e9}sum\u{e9} r\u{e9}sum\u{e9}=42>", a.inspect, '[ruby-core:24849]')
e = EnvUtil.verbose_warning do
@Struct.new("R\u{e9}sum\u{e9}", :"r\u{e9}sum\u{e9}")
end
assert_nothing_raised(Encoding::CompatibilityError) do
assert_match(/redefining constant #@Struct::R\u{e9}sum\u{e9}/, e)
end
@Struct.class_eval do
remove_const name
end
end
def test_junk
struct_test = @Struct.new("Foo", "a\000")
o = struct_test.new(1)
assert_equal(1, o.send("a\000"))
@Struct.instance_eval { remove_const(:Foo) }
end
def test_comparison_when_recursive
klass1 = @Struct.new(:a, :b, :c)
x = klass1.new(1, 2, nil); x.c = x
y = klass1.new(1, 2, nil); y.c = y
Timeout.timeout(1) {
assert_equal x, y
assert_operator x, :eql?, y
}
z = klass1.new(:something, :other, nil); z.c = z
Timeout.timeout(1) {
assert_not_equal x, z
assert_not_operator x, :eql?, z
}
x.c = y; y.c = x
Timeout.timeout(1) {
assert_equal x, y
assert_operator x, :eql?, y
}
x.c = z; z.c = x
Timeout.timeout(1) {
assert_not_equal x, z
assert_not_operator x, :eql?, z
}
end
def test_to_h
klass = @Struct.new(:a, :b, :c, :d, :e, :f)
o = klass.new(1, 2, 3, 4, 5, 6)
assert_equal({a:1, b:2, c:3, d:4, e:5, f:6}, o.to_h)
end
def test_to_h_block
klass = @Struct.new(:a, :b, :c, :d, :e, :f)
o = klass.new(1, 2, 3, 4, 5, 6)
assert_equal({"a" => 1, "b" => 4, "c" => 9, "d" => 16, "e" => 25, "f" => 36},
o.to_h {|k, v| [k.to_s, v*v]})
end
def test_question_mark_in_member
klass = @Struct.new(:a, :b?)
x = Object.new
o = klass.new("test", x)
assert_same(x, o.b?)
o.send("b?=", 42)
assert_equal(42, o.b?)
end
def test_bang_mark_in_member
klass = @Struct.new(:a, :b!)
x = Object.new
o = klass.new("test", x)
assert_same(x, o.b!)
o.send("b!=", 42)
assert_equal(42, o.b!)
end
def test_setter_method_returns_value
klass = @Struct.new(:a)
x = klass.new
assert_equal "[Bug #9353]", x.send(:a=, "[Bug #9353]")
end
def test_dig
klass = @Struct.new(:a)
o = klass.new(klass.new({b: [1, 2, 3]}))
assert_equal(1, o.dig(:a, :a, :b, 0))
assert_nil(o.dig(:b, 0))
end
def test_new_duplicate
bug12291 = '[ruby-core:74971] [Bug #12291]'
assert_raise_with_message(ArgumentError, /duplicate member/, bug12291) {
@Struct.new(:a, :a)
}
end
def test_deconstruct_keys
klass = @Struct.new(:a, :b)
o = klass.new(1, 2)
assert_equal({a: 1, b: 2}, o.deconstruct_keys(nil))
assert_equal({a: 1, b: 2}, o.deconstruct_keys([:b, :a]))
assert_equal({a: 1}, o.deconstruct_keys([:a]))
assert_not_send([o.deconstruct_keys([:a, :c]), :key?, :c])
assert_raise(TypeError) {
o.deconstruct_keys(0)
}
end
def test_public_send
klass = @Struct.new(:a)
x = klass.new(1)
assert_equal(1, x.public_send("a"))
assert_equal(42, x.public_send("a=", 42))
assert_equal(42, x.public_send("a"))
end
def test_arity
klass = @Struct.new(:a)
assert_equal 0, klass.instance_method(:a).arity
assert_equal 1, klass.instance_method(:a=).arity
klass.module_eval do
define_method(:b=, instance_method(:a=))
alias c= a=
end
assert_equal 1, klass.instance_method(:b=).arity
assert_equal 1, klass.instance_method(:c=).arity
end
def test_parameters
klass = @Struct.new(:a)
assert_equal [], klass.instance_method(:a).parameters
# NOTE: :_ may not be a spec.
assert_equal [[:req, :_]], klass.instance_method(:a=).parameters
klass.module_eval do
define_method(:b=, instance_method(:a=))
alias c= a=
end
assert_equal [[:req, :_]], klass.instance_method(:b=).parameters
assert_equal [[:req, :_]], klass.instance_method(:c=).parameters
end
class TopStruct < Test::Unit::TestCase
include TestStruct
def initialize(*)
super
@Struct = Struct
end
end
class SubStruct < Test::Unit::TestCase
include TestStruct
SubStruct = Class.new(Struct)
def initialize(*)
super
@Struct = SubStruct
end
end
end
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