ruby - 为什么“srb tc”没有为我的 RSpec 测试找到“expect”和“eq”方法？

Question

我正在一个实验性开源项目（ruby​​_crystal_codemod）中试用 Sorbet。我不知道如何让类型检查与嵌套测试项目中的一些 RSpec 测试一起工作。当我运行时srb tc，我看到一些类型检查错误，如下所示：

spec/src/example_class_annotated_spec.rb:6: Method it does not exist on T.class_of(<root>) https://srb.help/7003
     6 |  it 'should add @foo and @bar' do
     7 |    instance = ExampleClass.new(2, 3, 4)
     8 |    expect(instance.add).to eq 5
     9 |  end

spec/src/example_class_annotated_spec.rb:8: Method expect does not exist on T.class_of(<root>) https://srb.help/7003
     8 |    expect(instance.add).to eq 5
            ^^^^^^^^^^^^^^^^^^^^
    https://github.com/sorbet/sorbet/tree/67cd17f5168252fdec1ad04839b31fdda8bc6155/rbi/core/kernel.rbi#L2662: Did you mean: Kernel#exec?
    2662 |  def exec(*args); end
            ^^^^^^^^^^^^^^^

spec/src/example_class_annotated_spec.rb:8: Method eq does not exist on T.class_of(<root>) https://srb.help/7003
     8 |    expect(instance.add).to eq 5
                                    ^^^^

# etc.

这是GitHub 上嵌套项目的源目录。

• 规范/src/example_class_annotated_spec.rb
• 规范/spec_helper.rb
• src/example_class_annotated.rb

您应该能够运行以下命令来重现类型错误：

cd /tmp
git clone https://github.com/DocSpring/ruby_crystal_codemod.git
cd ruby_crystal_codemod
git checkout sorbet-rspec-type-checking-error
cd spec/fixtures/rspec_project/
bundle install
bundle exec srb tc

您应该会看到以下类型错误：

spec/src/example_class_annotated_spec.rb:6: Method it does not exist on T.class_of(<root>) https://srb.help/7003
     6 |  it 'should add @foo and @bar' do
     7 |    instance = ExampleClass.new(2, 3, 4)
     8 |    expect(instance.add).to eq 5
     9 |  end

# etc.

spec/fixtures/rspec_project/sorbet/rbi/gems/rspec-core.rbi等处的 RBI 文件有问题吗？