RSpec.describe RuboCop::Cop::RSpec::UnspecifiedException do
  subject(:cop) { described_class.new }

  context 'with raise_error matcher' do
    it 'detects the `unspecified_exception` offense' do
      expect_offense(<<-RUBY)
        expect {
          raise StandardError
        }.to raise_error
             ^^^^^^^^^^^ Specify the exception being captured
      RUBY
    end

    it 'allows empty exception specification when not expecting an error' do
      expect_no_offenses(<<-RUBY)
        expect {
          raise StandardError
        }.not_to raise_error
      RUBY
    end

    it 'allows exception classes' do
      expect_no_offenses(<<-RUBY)
        expect {
          raise StandardError
        }.to raise_error(StandardError)
      RUBY
    end

    it 'allows exception messages' do
      expect_no_offenses(<<-RUBY)
        expect {
          raise StandardError.new('error')
        }.to raise_error('error')
      RUBY
    end

    it 'allows exception types with messages' do
      expect_no_offenses(<<-RUBY)
        expect {
          raise StandardError.new('error')
        }.to raise_error(StandardError, 'error')
      RUBY
    end

    it 'allows exception matching regular expressions' do
      expect_no_offenses(<<-RUBY)
        expect {
          raise StandardError.new('error')
        }.to raise_error(/err/)
      RUBY
    end

    it 'allows exception types with matching regular expressions' do
      expect_no_offenses(<<-RUBY)
        expect {
          raise StandardError.new('error')
        }.to raise_error(StandardError, /err/)
      RUBY
    end

    it 'allows classes with blocks with braces' do
      expect_no_offenses(<<-RUBY)
        expect {
          raise StandardError.new('error')
        }.to raise_error { |err| err.data }
      RUBY
    end

    it 'allows classes with blocks with do/end' do
      expect_no_offenses(<<-RUBY)
        expect {
          raise StandardError.new('error')
        }.to raise_error do |error|
          error.data
        end
      RUBY
    end

    it 'allows parameterized exceptions' do
      expect_no_offenses(<<-RUBY)
        my_exception = StandardError.new('my exception')
        expect {
          raise my_exception
        }.to raise_error(my_exception)
      RUBY
    end
  end

  context 'with raise_exception matcher' do
    it 'detects the `unspecified_exception` offense' do
      expect_offense(<<-RUBY)
        expect {
          raise StandardError
        }.to raise_exception
             ^^^^^^^^^^^^^^^ Specify the exception being captured
      RUBY
    end

    it 'allows empty exception specification when not expecting an error' do
      expect_no_offenses(<<-RUBY)
        expect {
          raise StandardError
        }.not_to raise_exception
      RUBY
    end

    it 'allows exception classes' do
      expect_no_offenses(<<-RUBY)
        expect {
          raise StandardError
        }.to raise_exception(StandardError)
      RUBY
    end

    it 'allows exception messages' do
      expect_no_offenses(<<-RUBY)
        expect {
          raise StandardError.new('error')
        }.to raise_exception('error')
      RUBY
    end

    it 'allows exception types with messages' do
      expect_no_offenses(<<-RUBY)
        expect {
          raise StandardError.new('error')
        }.to raise_exception(StandardError, 'error')
      RUBY
    end

    it 'allows exception matching regular expressions' do
      expect_no_offenses(<<-RUBY)
        expect {
          raise StandardError.new('error')
        }.to raise_exception(/err/)
      RUBY
    end

    it 'allows exception types with matching regular expressions' do
      expect_no_offenses(<<-RUBY)
        expect {
          raise StandardError.new('error')
        }.to raise_exception(StandardError, /err/)
      RUBY
    end

    it 'allows classes with blocks with braces' do
      expect_no_offenses(<<-RUBY)
        expect {
          raise StandardError.new('error')
        }.to raise_exception { |err| err.data }
      RUBY
    end

    it 'allows classes with blocks with do/end' do
      expect_no_offenses(<<-RUBY)
        expect {
          raise StandardError.new('error')
        }.to raise_exception do |error|
          error.data
        end
      RUBY
    end

    it 'allows parameterized exceptions' do
      expect_no_offenses(<<-RUBY)
        my_exception = StandardError.new('my exception')
        expect {
          raise my_exception
        }.to raise_exception(my_exception)
      RUBY
    end
  end
end