rails attr_accessible rspec 检查

Question

当我想用 RSpec 测试属性是否 / 是不是 可访问 时，我正在这样做

class Foo
  attr_accesible :something_else
end

describe Foo do
  it('author should not be accessible')    {lambda{described_class.new(:author=>true)}.should raise_error ActiveModel::MassAssignmentSecurity::Error}
  it('something_else should be accessible'){lambda{described_class.new(:something_else=>true)}.should_not raise_error ActiveModel::MassAssignmentSecurity::Error}
end

有没有更好的方法呢？

...谢谢

Answer 1

This is the way attribute accessibility tests are done in the Rails Tutorial，我觉得还不错。因此，在您的情况下，测试代码可以稍微修改为：

describe Foo do
  describe "accessible attributes" do
    it "should not allow access to author" do
      expect do
        Foo.new(author: true)
      end.to raise_error(ActiveModel::MassAssignmentSecurity::Error)
    end

    it "should allow access to something_else" do
      expect do
        Foo.new(something_else: true)
      end.to_not raise_error(ActiveModel::MassAssignmentSecurity::Error)
    end
  end
end

如果这不是您想要的，当您询问是否有“更好的方法”时，您能否更好地告诉我们您正在寻求什么样的解决方案？

编辑

您可能对Shoulda ActiveModel matchers 感兴趣，它会将代码清理为每次测试仅一行。比如：

it { should_not allow_mass_assignment_of(:author) }
it { should allow_mass_assignment_of(:something_else) }