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require 'cases/helper'
require 'models/book'
class EnumTest < ActiveRecord::TestCase
fixtures :books
setup do
@book = books(:awdr)
end
test "query state by predicate" do
assert @book.proposed?
assert_not @book.written?
assert_not @book.published?
assert @book.unread?
end
test "query state with strings" do
assert_equal "proposed", @book.status
assert_equal "unread", @book.read_status
end
test "find via scope" do
assert_equal @book, Book.proposed.first
assert_equal @book, Book.unread.first
end
test "update by declaration" do
@book.written!
assert @book.written?
end
test "update by setter" do
@book.update! status: :written
assert @book.written?
end
test "enum methods are overwritable" do
assert_equal "do publish work...", @book.published!
assert @book.published?
end
test "direct assignment" do
@book.status = :written
assert @book.written?
end
test "assign string value" do
@book.status = "written"
assert @book.written?
end
test "assign non existing value raises an error" do
e = assert_raises(ArgumentError) do
@book.status = :unknown
end
assert_equal "'unknown' is not a valid status", e.message
end
test "assign nil value" do
@book.status = nil
assert @book.status.nil?
end
test "assign empty string value" do
@book.status = ''
assert @book.status.nil?
end
test "assign long empty string value" do
@book.status = ' '
assert @book.status.nil?
end
test "constant to access the mapping" do
assert_equal 0, Book::STATUS[:proposed]
assert_equal 1, Book::STATUS["written"]
assert_equal 2, Book::STATUS[:published]
end
test "building new objects with enum scopes" do
assert Book.written.build.written?
assert Book.read.build.read?
end
test "creating new objects with enum scopes" do
assert Book.written.create.written?
assert Book.read.create.read?
end
test "_before_type_cast returns the enum label (required for form fields)" do
assert_equal "proposed", @book.status_before_type_cast
end
end
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