# frozen_string_literal: true

require 'fast_spec_helper'

require_relative '../../../../rubocop/cop/usage_data/histogram_with_large_table'

RSpec.describe RuboCop::Cop::UsageData::HistogramWithLargeTable do
  let(:high_traffic_models) { %w[Issue Ci::Build] }
  let(:msg) { 'Avoid histogram method on' }

  let(:config) do
    RuboCop::Config.new('UsageData/HistogramWithLargeTable' => {
                          'HighTrafficModels' => high_traffic_models
                        })
  end

  subject(:cop) { described_class.new(config) }

  context 'with large tables' do
    context 'with one-level constants' do
      context 'when calling histogram(Issue)' do
        it 'registers an offense' do
          expect_offense(<<~CODE)
            histogram(Issue, :project_id, buckets: 1..100)
            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ #{msg} Issue
          CODE
        end
      end

      context 'when calling histogram(::Issue)' do
        it 'registers an offense' do
          expect_offense(<<~CODE)
            histogram(::Issue, :project_id, buckets: 1..100)
            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ #{msg} Issue
          CODE
        end
      end

      context 'when calling histogram(Issue.closed)' do
        it 'registers an offense' do
          expect_offense(<<~CODE)
            histogram(Issue.closed, :project_id, buckets: 1..100)
            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ #{msg} Issue
          CODE
        end
      end

      context 'when calling histogram(::Issue.closed)' do
        it 'registers an offense' do
          expect_offense(<<~CODE)
            histogram(::Issue.closed, :project_id, buckets: 1..100)
            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ #{msg} Issue
          CODE
        end
      end
    end

    context 'with two-level constants' do
      context 'when calling histogram(::Ci::Build)' do
        it 'registers an offense' do
          expect_offense(<<~CODE)
            histogram(::Ci::Build, buckets: 1..100)
            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ #{msg} Ci::Build
          CODE
        end
      end

      context 'when calling histogram(::Ci::Build.active)' do
        it 'registers an offense' do
          expect_offense(<<~CODE)
            histogram(::Ci::Build.active, buckets: 1..100)
            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ #{msg} Ci::Build
          CODE
        end
      end

      context 'when calling histogram(Ci::Build)' do
        it 'registers an offense' do
          expect_offense(<<~CODE)
            histogram(Ci::Build, buckets: 1..100)
            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ #{msg} Ci::Build
          CODE
        end
      end

      context 'when calling histogram(Ci::Build.active)' do
        it 'registers an offense' do
          expect_offense(<<~CODE)
            histogram(Ci::Build.active, buckets: 1..100)
            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ #{msg} Ci::Build
          CODE
        end
      end
    end
  end

  context 'with non related class' do
    it 'does not register an offense' do
      expect_no_offenses('histogram(MergeRequest, buckets: 1..100)')
    end
  end

  context 'with non related method' do
    it 'does not register an offense' do
      expect_no_offenses('count(Issue, buckets: 1..100)')
    end
  end
end