repeated_example_spec.rb

# frozen_string_literal: true

RSpec.describe RuboCop::Cop::RSpec::RepeatedExample do
  it 'registers an offense for repeated example' do
    expect_offense(<<~RUBY)
      describe 'doing x' do
        it "does x" do
        ^^^^^^^^^^^^^^ Don't repeat examples within an example group.
          expect(foo).to be(bar)
        end

        it "does y" do
        ^^^^^^^^^^^^^^ Don't repeat examples within an example group.
          expect(foo).to be(bar)
        end
      end
    RUBY
  end

  it 'does not register an offense if rspec tag magic is involved' do
    expect_no_offenses(<<~RUBY)
      describe 'doing x' do
        it "does x" do
          expect(foo).to be(bar)
        end

        it "does y", :focus do
          expect(foo).to be(bar)
        end
      end
    RUBY
  end

  it 'does not flag examples with different implementations' do
    expect_no_offenses(<<~RUBY)
      describe 'doing x' do
        it "does x" do
          expect(foo).to have_attribute(foo: 1)
        end

        it "does y" do
          expect(foo).to have_attribute(bar: 2)
        end
      end
    RUBY
  end

  it 'registers an offense when repeated its are used' do
    expect_offense(<<~RUBY)
      describe 'doing x' do
        its(:x) { is_expected.to be_present }
        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Don't repeat examples within an example group.
        its(:x) { is_expected.to be_present }
        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Don't repeat examples within an example group.
      end
    RUBY
  end

  it 'does not flag examples when different its arguments are used' do
    expect_no_offenses(<<~RUBY)
      describe 'doing x' do
        its(:x) { is_expected.to be_present }
        its(:y) { is_expected.to be_present }
      end
    RUBY
  end

  it 'does not flag examples when different its block expectations are used' do
    expect_no_offenses(<<~RUBY)
      describe 'doing x' do
        its(:x) { is_expected.to be_present }
        its(:x) { is_expected.to be_blank }
      end
    RUBY
  end

  it 'does not flag repeated examples in different scopes' do
    expect_no_offenses(<<~RUBY)
      describe 'doing x' do
        it "does x" do
          expect(foo).to be(bar)
        end

        context 'when the scope changes' do
          it 'does not flag anything' do
            expect(foo).to be(bar)
          end
        end
      end
    RUBY
  end
end