我正在从事一个在“项目”模型中具有以下验证标准的项目:
validates :project_name,
presence: true,
format: { with: /\A[a-zA-Z\s_-]+\z/,
message: 'allows letters, spaces, underscores, and hyphens' }
validates :jira_id,
uniqueness: true,
presence: true,
format: { with: /\A[A-Z]+-[0-9]+\z/,
message: 'allows capitalized letters followed by a hyphen and numbers' }
validates :capacity,
presence: true,
numericality: { only_integer: true, greater_than_or_equal_to: 0 }
validates :openings,
presence: true,
numericality: { only_integer: true, greater_than_or_equal_to: 0 }
validates_format_of :last_status_change_dt,
with: /\d{4}-\d{2}-\d{2}/,
message: 'must be formatted as YYYY-MM-DD',
on: :save
validates_presence_of :last_status_change_dt
projects_controller:
def create
ActiveRecord::Base.transaction do
parameters = project_params.dup
parameters[:language_id] = get_language_id(params[:language_name]) if parameters[:language_id].nil?
@project = Project.new(parameters)
if @project.save
render json: @project, status: :created, location: @project
else
render json: @project.errors, status: :not_acceptable
raise ActiveRecord::Rollback
end
end
rescue ActiveRecord::ActiveRecordError
render json: { text: 'Project was not created' }, status: :internal_server_error
end
在规范文件中,使用了 FactoryBot 构建和创建函数。
在目前的测试中,验证依赖于项目模型,但我想测试保存功能。如何模拟保存功能失败?
最佳答案
您可以使用 allow_any_instance_of
,但这有点重锤。相反,制作一个 double 和 mock Project.new 来返回它。
context 'Project#save raises ActiveRecord::ActiveRecordError' do
let(:project) {
# Set up the double to fail on save.
instance_double("Project").tap { |project|
allow(project).to receive(:save).and_raise(ActiveRecord::ActiveRecordError)
}
}
before {
# Set up Project.new to return the double
allow(Project).to receive(:new).and_return(project)
}
end
请注意,save
引发 ActiveRecord::ActiveRecordError 是很不寻常的,如果它做了一些非常不寻常的事情就出错了。您通常不会在 Controller 中拯救它。
关于ruby-on-rails - 测试 'save' 函数在传递无效数据时失败。 ( ruby Rspec),我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/66391170/