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# frozen_string_literal: true
require "cases/helper"
module ActiveModel
class AttributesTest < ActiveModel::TestCase
class ModelForAttributesTest
include ActiveModel::Model
include ActiveModel::Attributes
attribute :integer_field, :integer
attribute :string_field, :string
attribute :decimal_field, :decimal
attribute :string_with_default, :string, default: "default string"
attribute :date_field, :date, default: -> { Date.new(2016, 1, 1) }
attribute :boolean_field, :boolean
end
class ChildModelForAttributesTest < ModelForAttributesTest
end
class GrandchildModelForAttributesTest < ChildModelForAttributesTest
attribute :integer_field, :string
end
test "properties assignment" do
data = ModelForAttributesTest.new(
integer_field: "2.3",
string_field: "Rails FTW",
decimal_field: "12.3",
boolean_field: "0"
)
assert_equal 2, data.integer_field
assert_equal "Rails FTW", data.string_field
assert_equal BigDecimal("12.3"), data.decimal_field
assert_equal "default string", data.string_with_default
assert_equal Date.new(2016, 1, 1), data.date_field
assert_equal false, data.boolean_field
data.integer_field = 10
data.string_with_default = nil
data.boolean_field = "1"
assert_equal 10, data.integer_field
assert_nil data.string_with_default
assert_equal true, data.boolean_field
end
test "reading attributes" do
data = ModelForAttributesTest.new(
integer_field: 1.1,
string_field: 1.1,
decimal_field: 1.1,
boolean_field: 1.1
)
expected_attributes = {
integer_field: 1,
string_field: "1.1",
decimal_field: BigDecimal("1.1"),
string_with_default: "default string",
date_field: Date.new(2016, 1, 1),
boolean_field: true
}.stringify_keys
assert_equal expected_attributes, data.attributes
end
test "reading attribute names" do
names = [
"integer_field",
"string_field",
"decimal_field",
"string_with_default",
"date_field",
"boolean_field"
]
assert_equal names, ModelForAttributesTest.attribute_names
assert_equal names, ModelForAttributesTest.new.attribute_names
end
test "nonexistent attribute" do
assert_raise ActiveModel::UnknownAttributeError do
ModelForAttributesTest.new(nonexistent: "nonexistent")
end
end
test "children inherit attributes" do
data = ChildModelForAttributesTest.new(integer_field: "4.4")
assert_equal 4, data.integer_field
end
test "children can override parents" do
data = GrandchildModelForAttributesTest.new(integer_field: "4.4")
assert_equal "4.4", data.integer_field
end
test "attributes with proc defaults can be marshalled" do
data = ModelForAttributesTest.new
attributes = data.instance_variable_get(:@attributes)
round_tripped = Marshal.load(Marshal.dump(data))
new_attributes = round_tripped.instance_variable_get(:@attributes)
assert_equal attributes, new_attributes
end
end
end
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