class RuboCop::Cop::RSpec::UnspecifiedException


expect { do_something }.not_to raise_error
}.to raise_error(/err/)
raise StandardError.new(‘error’)
expect {
}.to raise_error(‘error’)
raise StandardError.new(‘error’)
expect {
}.to raise_error(StandardError)
raise StandardError.new(‘error’)
expect {
# good
}.to raise_error
raise StandardError.new(‘error’)
expect {
# bad
@example
to ‘raise_error`
expression to match against the exception message as a parameter
Enforces one of an Exception type, a string, or a regular
Checks for a specified error in checking raised errors.

def empty_exception_matcher?(node) 

def empty_exception_matcher?(node)
  return false if node.arguments? || node.block_literal?
  expect_to = find_expect_to(node)
  return false unless expect_to
  return false if expect_to.block_node&.arguments?
  true
end

def find_expect_to(node) 

def find_expect_to(node)
  node.each_ancestor.find do |ancestor|
    break if ancestor.block_type?
    expect_to?(ancestor)
  end
end

def on_send(node) 

def on_send(node)
  return unless empty_exception_matcher?(node)
  add_offense(node)
end