test: cover OrmParanoiaTest and teardown

test/test_orm_paranoia.rb

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+require 'minitest/autorun'
+require 'prism'
+require 'tmpdir'
+require 'fileutils'
+
+class OrmParanoiaTest < Minitest::Test
+  def setup
+    @dir = Dir.mktmpdir('prism-paranoia-store')
+    @store = Prism::Orm::Store.new(File.join(@dir, 'test.pstore'))
+    @store.create_table(:widgets, %w[id name deleted_at])
+    @store.create_table(:plain_things, %w[id name])
+    @store.create_table(:locked_widgets, %w[id name deleted_at lock_version])
+    @store.create_table(:authors, %w[id name])
+    @store.create_table(:posts, %w[id title author_id deleted_at])
+    @store.create_table(:blogs, %w[id name deleted_at entries_count])
+    @store.create_table(:entries, %w[id title blog_id deleted_at])
+
+    widget_class = Class.new(Prism::Orm::Model) do
+      table_name :widgets
+      acts_as_paranoid
+    end
+    plain_class = Class.new(Prism::Orm::Model) { table_name :plain_things }
+    locked_widget_class = Class.new(Prism::Orm::Model) do
+      table_name :locked_widgets
+      acts_as_paranoid
+    end
+    author_class = Class.new(Prism::Orm::Model) do
+      table_name :authors
+      has_many :posts, class_name: 'Post', foreign_key: 'author_id', dependent: :destroy
+    end
+    post_class = Class.new(Prism::Orm::Model) do
+      table_name :posts
+      acts_as_paranoid
+      belongs_to :author, class_name: 'Author', foreign_key: 'author_id'
+    end
+
+    blog_class = Class.new(Prism::Orm::Model) do
+      table_name :blogs
+      acts_as_paranoid
+      has_many :entries, class_name: 'Entry', foreign_key: 'blog_id', dependent: :destroy
+    end
+    entry_class = Class.new(Prism::Orm::Model) do
+      table_name :entries
+      acts_as_paranoid
+      belongs_to :blog, class_name: 'Blog', foreign_key: 'blog_id', counter_cache: true
+    end
+
+    [widget_class, plain_class, locked_widget_class, author_class, post_class, blog_class, entry_class].each do |klass|
+      klass.store = @store
+    end
+    Object.const_set(:Widget, widget_class)
+    Object.const_set(:PlainThing, plain_class)
+    Object.const_set(:LockedWidget, locked_widget_class)
+    Object.const_set(:Author, author_class)
+    Object.const_set(:Post, post_class)
+    Object.const_set(:Blog, blog_class)
+    Object.const_set(:Entry, entry_class)
+  end
+
+  def teardown
+    FileUtils.remove_entry(@dir)
+    %i[Widget PlainThing LockedWidget Author Post Blog Entry].each do |name|
+      Object.send(:remove_const, name) if Object.const_defined?(name)
+    end
+  end
+
+  def test_plain_model_is_not_paranoid_and_destroy_removes_the_row_for_real
+    refute PlainThing.paranoid?
+    thing = PlainThing.create!(name: 'gizmo')
+    thing.destroy
+    assert_raises(Prism::Orm::RecordNotFound) { PlainThing.find(thing.id) }
+  end
+
+  def test_paranoid_destroy_stamps_the_column_instead_of_deleting
+    widget = Widget.create!(name: 'gizmo')
+    widget.destroy
+
+    assert widget.destroyed?
+    row = @store.find('widgets', widget.id)
+    refute_nil row, 'the row must still physically exist'
+    refute_nil row['deleted_at']
+  end
+
+  def test_paranoid_destroy_hides_the_record_from_find_all_and_count
+    widget = Widget.create!(name: 'gizmo')
+    widget.destroy
+
+    assert_raises(Prism::Orm::RecordNotFound) { Widget.find(widget.id) }
+    assert_empty Widget.all.to_a
+    assert_equal 0, Widget.count
+  end
+
+  def test_paranoid_destroy_still_runs_before_and_after_destroy_callbacks
+    log = []
+    widget_class = Class.new(Prism::Orm::Model) do
+      table_name :widgets
+      acts_as_paranoid
+      before_destroy { log << :before_destroy }
+      after_destroy { log << :after_destroy }
+    end
+    widget_class.store = @store
+    widget = widget_class.create!(name: 'gizmo')
+
+    widget.destroy
+
+    assert_equal %i[before_destroy after_destroy], log
+  end
+
+  def test_before_destroy_abort_leaves_the_record_undeleted
+    widget_class = Class.new(Prism::Orm::Model) do
+      table_name :widgets
+      acts_as_paranoid
+      before_destroy { throw :abort }
+    end
+    widget_class.store = @store
+    widget = widget_class.create!(name: 'gizmo')
+
+    widget.destroy
+
+    refute widget.destroyed?
+    assert widget_class.find(widget.id)
+  end
+
+  def test_deleted_predicate
+    widget = Widget.create!(name: 'gizmo')
+    refute widget.deleted?
+    widget.destroy
+    assert widget.deleted?
+  end
+
+  def test_soft_deleting_predicate_is_true_inside_before_destroy_for_a_plain_soft_delete
+    seen = nil
+    widget_class = Class.new(Prism::Orm::Model) do
+      table_name :widgets
+      acts_as_paranoid
+      before_destroy { seen = soft_deleting? }
+    end
+    widget_class.store = @store
+    widget = widget_class.create!(name: 'gizmo')
+
+    widget.destroy
+
+    assert_equal true, seen
+    assert widget.soft_deleting?, 'still true after #destroy returns, not just mid-callback'
+  end
+
+  def test_soft_deleting_predicate_is_false_for_really_destroy_bang
+    seen = nil
+    widget_class = Class.new(Prism::Orm::Model) do
+      table_name :widgets
+      acts_as_paranoid
+      before_destroy { seen = soft_deleting? }
+    end
+    widget_class.store = @store
+    widget = widget_class.create!(name: 'gizmo')
+
+    widget.really_destroy!
+