class RuboCop::Cop::RSpec::NestedGroups

Checks for nested example groups.

This cop is configurable using the ‘Max` option and supports `–auto-gen-config`.

@example

# bad
context 'when using some feature' do
  let(:some)    { :various }
  let(:feature) { :setup   }

  context 'when user is signed in' do  # flagged by rubocop
    let(:user) do
      UserCreate.call(user_attributes)
    end

    let(:user_attributes) do
      {
        name: 'John',
        age:  22,
        role: role
      }
    end

    context 'when user is an admin' do # flagged by rubocop
      let(:role) { 'admin' }

      it 'blah blah'
      it 'yada yada'
    end
  end
end

# good
context 'using some feature as an admin' do
  let(:some)    { :various }
  let(:feature) { :setup   }

  let(:user) do
    UserCreate.call(
      name: 'John',
      age:  22,
      role: 'admin'
    )
  end

  it 'blah blah'
  it 'yada yada'
end

@example ‘Max: 3` (default)

# bad
describe Foo do
  context 'foo' do
    context 'bar' do
      context 'baz' do # flagged by rubocop
      end
    end
  end
end

@example ‘Max: 2`

# bad
describe Foo do
  context 'foo' do
    context 'bar' do # flagged by rubocop
      context 'baz' do # flagged by rubocop
      end
    end
  end
end

@example ‘AllowedGroups: [] (default)`

describe Foo do # <-- nested groups 1
  context 'foo' do # <-- nested groups 2
    context 'bar' do # <-- nested groups 3
    end
  end
end

@example ‘AllowedGroups: [path]`

describe Foo do # <-- nested groups 1
  path '/foo' do # <-- nested groups 1 (not counted)
    context 'bar' do # <-- nested groups 2
    end
  end
end