cf7ab6056a
When resetting an attribute, you expect it to return to the state it was before any changes. Namely, this fixes this unexpected behavior: ~~~ruby model.name = "Bob" model.reset_name! model.name_changed? #=> true ~~~
118 lines
2.7 KiB
Ruby
118 lines
2.7 KiB
Ruby
require "cases/helper"
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class DirtyTest < ActiveModel::TestCase
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class DirtyModel
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include ActiveModel::Dirty
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define_attribute_methods :name, :color
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def initialize
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@name = nil
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@color = nil
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end
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def name
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@name
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end
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def name=(val)
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name_will_change!
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@name = val
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end
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def color
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@color
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end
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def color=(val)
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color_will_change! unless val == @color
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@color = val
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end
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def save
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@previously_changed = changes
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@changed_attributes.clear
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end
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end
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setup do
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@model = DirtyModel.new
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end
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test "setting attribute will result in change" do
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assert !@model.changed?
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assert !@model.name_changed?
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@model.name = "Ringo"
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assert @model.changed?
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assert @model.name_changed?
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end
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test "list of changed attributes" do
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assert_equal [], @model.changed
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@model.name = "Paul"
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assert_equal ['name'], @model.changed
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end
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test "changes to attribute values" do
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assert !@model.changes['name']
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@model.name = "John"
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assert_equal [nil, "John"], @model.changes['name']
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end
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test "changes accessible through both strings and symbols" do
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@model.name = "David"
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assert_not_nil @model.changes[:name]
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assert_not_nil @model.changes['name']
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end
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test "attribute mutation" do
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@model.instance_variable_set("@name", "Yam")
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assert !@model.name_changed?
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@model.name.replace("Hadad")
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assert !@model.name_changed?
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@model.name_will_change!
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@model.name.replace("Baal")
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assert @model.name_changed?
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end
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test "resetting attribute" do
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@model.name = "Bob"
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@model.reset_name!
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assert_nil @model.name
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assert !@model.name_changed?
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end
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test "setting color to same value should not result in change being recorded" do
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@model.color = "red"
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assert @model.color_changed?
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@model.save
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assert !@model.color_changed?
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assert !@model.changed?
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@model.color = "red"
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assert !@model.color_changed?
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assert !@model.changed?
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end
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test "saving should reset model's changed status" do
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@model.name = "Alf"
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assert @model.changed?
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@model.save
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assert !@model.changed?
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assert !@model.name_changed?
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end
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test "saving should preserve previous changes" do
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@model.name = "Jericho Cane"
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@model.save
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assert_equal [nil, "Jericho Cane"], @model.previous_changes['name']
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end
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test "changing the same attribute multiple times retains the correct original value" do
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@model.name = "Otto"
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@model.save
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@model.name = "DudeFella ManGuy"
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@model.name = "Mr. Manfredgensonton"
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assert_equal ["Otto", "Mr. Manfredgensonton"], @model.name_change
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assert_equal @model.name_was, "Otto"
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end
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end
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