130 lines
3.1 KiB
Ruby
130 lines
3.1 KiB
Ruby
require "cases/helper"
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require "active_support/core_ext/hash/indifferent_access"
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require "active_support/hash_with_indifferent_access"
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class AttributeAssignmentTest < ActiveModel::TestCase
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class Model
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include ActiveModel::AttributeAssignment
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attr_accessor :name, :description
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def initialize(attributes = {})
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assign_attributes(attributes)
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end
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def broken_attribute=(value)
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raise ErrorFromAttributeWriter
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end
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# TODO Change this to private once we've dropped Ruby 2.2 support.
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# Workaround for Ruby 2.2 "private attribute?" warning.
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protected
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attr_writer :metadata
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end
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class ErrorFromAttributeWriter < StandardError
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end
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class ProtectedParams
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attr_accessor :permitted
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alias :permitted? :permitted
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delegate :keys, :key?, :has_key?, :empty?, to: :@parameters
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def initialize(attributes)
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@parameters = attributes.with_indifferent_access
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@permitted = false
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end
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def permit!
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@permitted = true
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self
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end
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def [](key)
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@parameters[key]
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end
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def to_h
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@parameters
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end
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def stringify_keys
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dup
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end
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def dup
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super.tap do |duplicate|
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duplicate.instance_variable_set :@permitted, permitted?
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end
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end
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end
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test "simple assignment" do
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model = Model.new
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model.assign_attributes(name: "hello", description: "world")
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assert_equal "hello", model.name
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assert_equal "world", model.description
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end
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test "assign non-existing attribute" do
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model = Model.new
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error = assert_raises(ActiveModel::UnknownAttributeError) do
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model.assign_attributes(hz: 1)
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end
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assert_equal model, error.record
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assert_equal "hz", error.attribute
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end
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test "assign private attribute" do
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model = Model.new
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assert_raises(ActiveModel::UnknownAttributeError) do
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model.assign_attributes(metadata: { a: 1 })
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end
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end
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test "does not swallow errors raised in an attribute writer" do
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assert_raises(ErrorFromAttributeWriter) do
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Model.new(broken_attribute: 1)
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end
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end
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test "an ArgumentError is raised if a non-hash-like object is passed" do
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assert_raises(ArgumentError) do
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Model.new(1)
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end
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end
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test "forbidden attributes cannot be used for mass assignment" do
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params = ProtectedParams.new(name: "Guille", description: "m")
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assert_raises(ActiveModel::ForbiddenAttributesError) do
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Model.new(params)
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end
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end
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test "permitted attributes can be used for mass assignment" do
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params = ProtectedParams.new(name: "Guille", description: "desc")
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params.permit!
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model = Model.new(params)
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assert_equal "Guille", model.name
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assert_equal "desc", model.description
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end
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test "regular hash should still be used for mass assignment" do
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model = Model.new(name: "Guille", description: "m")
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assert_equal "Guille", model.name
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assert_equal "m", model.description
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end
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test "assigning no attributes should not raise, even if the hash is un-permitted" do
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model = Model.new
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assert_nil model.assign_attributes(ProtectedParams.new({}))
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end
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end
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