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|
# frozen_string_literal: true
require 'psych/helper'
module Psych
class TestSafeLoad < TestCase
def setup
@orig_verbose, $VERBOSE = $VERBOSE, nil
end
def teardown
$VERBOSE = @orig_verbose
end
class Foo; end
[1, 2.2, {}, [], "foo"].each do |obj|
define_method(:"test_basic_#{obj.class}") do
assert_safe_cycle obj
end
end
def test_raises_when_alias_found_if_alias_parsing_not_enabled
yaml_with_aliases = <<~YAML
---
a: &ABC
k1: v1
k2: v2
b: *ABC
YAML
assert_raise(Psych::AliasesNotEnabled) do
Psych.safe_load(yaml_with_aliases)
end
end
def test_aliases_are_parsed_when_alias_parsing_is_enabled
yaml_with_aliases = <<~YAML
---
a: &ABC
k1: v1
k2: v2
b: *ABC
YAML
result = Psych.safe_load(yaml_with_aliases, aliases: true)
assert_same result.fetch("a"), result.fetch("b")
end
def test_permitted_symbol
yml = Psych.dump :foo
assert_raise(Psych::DisallowedClass) do
Psych.safe_load yml
end
assert_equal(
:foo,
Psych.safe_load(
yml,
permitted_classes: [Symbol],
permitted_symbols: [:foo]
)
)
end
def test_symbol
assert_raise(Psych::DisallowedClass) do
assert_safe_cycle :foo
end
assert_raise(Psych::DisallowedClass) do
Psych.safe_load '--- !ruby/symbol foo', permitted_classes: []
end
assert_safe_cycle :foo, permitted_classes: [Symbol]
assert_safe_cycle :foo, permitted_classes: %w{ Symbol }
assert_equal :foo, Psych.safe_load('--- !ruby/symbol foo', permitted_classes: [Symbol])
end
def test_foo
assert_raise(Psych::DisallowedClass) do
Psych.safe_load '--- !ruby/object:Foo {}', permitted_classes: [Foo]
end
assert_raise(Psych::DisallowedClass) do
assert_safe_cycle Foo.new
end
assert_kind_of(Foo, Psych.safe_load(Psych.dump(Foo.new), permitted_classes: [Foo]))
end
X = Struct.new(:x)
def test_struct_depends_on_sym
assert_safe_cycle(X.new, permitted_classes: [X, Symbol])
assert_raise(Psych::DisallowedClass) do
cycle X.new, permitted_classes: [X]
end
end
def test_anon_struct
assert Psych.safe_load(<<-eoyml, permitted_classes: [Struct, Symbol])
--- !ruby/struct
foo: bar
eoyml
assert_raise(Psych::DisallowedClass) do
Psych.safe_load(<<-eoyml, permitted_classes: [Struct])
--- !ruby/struct
foo: bar
eoyml
end
assert_raise(Psych::DisallowedClass) do
Psych.safe_load(<<-eoyml, permitted_classes: [Symbol])
--- !ruby/struct
foo: bar
eoyml
end
end
def test_safe_load_default_fallback
assert_nil Psych.safe_load("")
end
def test_safe_load
assert_equal %w[a b], Psych.safe_load("- a\n- b")
end
def test_safe_load_raises_on_bad_input
assert_raise(Psych::SyntaxError) { Psych.safe_load("--- `") }
end
private
def cycle object, permitted_classes: []
Psych.safe_load(Psych.dump(object), permitted_classes: permitted_classes)
end
def assert_safe_cycle object, permitted_classes: []
other = cycle object, permitted_classes: permitted_classes
assert_equal object, other
end
end
end
|
