From 72234f865b5a31bd7858308ba905b0d337dfca5a Mon Sep 17 00:00:00 2001
From: "Daniel (dB.) Doubrovkine" <dblock@dblock.org>
Date: Sat, 17 Oct 2026 08:40:07 -0400
Subject: [PATCH] Cover candidate budget boundaries and report real legacy
 driver coverage

Exercise both candidate truncation branches and standalone version loading. Combine actual Mongoid3.1 and current matrix reports so legacy index hooks and persistence calls are measured without exclusions or mocked version branches.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
---
 .github/workflows/test.yml            | 16 ++++++++++++++--
 CHANGELOG.md                          |  1 +
 Gemfile                               |  2 +-
 spec/mongoid/candidate_limits_spec.rb | 19 +++++++++++++++++++
 spec/version_spec.rb                  |  9 +++++++++
 5 files changed, 44 insertions(+), 3 deletions(-)
 create mode 100644 spec/mongoid/candidate_limits_spec.rb
 create mode 100644 spec/version_spec.rb

diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 7a9c08e..678cdf3 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -26,7 +26,7 @@ jobs:
           - { ruby: '4.0', mongoid: '9', mongodb: '8.0', bundler: default }
     env:
       MONGOID_VERSION: ${{ matrix.mongoid }}
-      COVERAGE: ${{ matrix.ruby == '4.0' && 'true' || 'false' }}
+      COVERAGE: ${{ (matrix.mongoid == '~> 3.1.0' || matrix.ruby == '4.0') && 'true' || 'false' }}
     services:
       mongodb:
         image: mongo:${{ matrix.mongodb }}
@@ -43,12 +43,24 @@ jobs:
           bundler-cache: true
       - run: bundle exec rake spec
       - name: Report coverage to Coveralls
-        if: matrix.ruby == '4.0'
+        if: matrix.mongoid == '~> 3.1.0' || matrix.ruby == '4.0'
         uses: coverallsapp/github-action@v2
         with:
           github-token: ${{ secrets.GITHUB_TOKEN }}
           file: coverage/.resultset.json
           format: simplecov
+          parallel: true
+          flag-name: ruby-${{ matrix.ruby }}
+
+  coverage:
+    needs: test
+    if: ${{ always() && needs.test.result == 'success' }}
+    runs-on: ubuntu-latest
+    steps:
+      - uses: coverallsapp/github-action@v2
+        with:
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+          parallel-finished: true
 
   lint:
     runs-on: ubuntu-22.04
diff --git a/CHANGELOG.md b/CHANGELOG.md
index f3dde02..88c6af3 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,6 @@
 ### 0.9.0 (Next)
 
+* [#68](https://github.com/mongoid/mongoid_fulltext/pull/68): Cover candidate-budget boundaries and standalone version loading, and combine coverage from actual legacy and modern drivers - [@dblock](https://github.com/dblock).
 * [#61](https://github.com/mongoid/mongoid_fulltext/pull/61): Support weighted fields with configurable maximum or summed field-score aggregation - [@dblock](https://github.com/dblock).
 * [#60](https://github.com/mongoid/mongoid_fulltext/pull/60): Extract ngram calculation and index-definition planning for maintainability without changing model APIs or search behavior - [@tomasc](https://github.com/tomasc), [@dblock](https://github.com/dblock).
 * [#59](https://github.com/mongoid/mongoid_fulltext/pull/59): Document and cover class-level indexing timeout options - [@dblock](https://github.com/dblock).
diff --git a/Gemfile b/Gemfile
index 48006aa..7983b31 100644
--- a/Gemfile
+++ b/Gemfile
@@ -14,7 +14,7 @@ group :test do
     gem 'database_cleaner', '~> 1.8'
   end
   gem 'rspec'
-  gem 'simplecov', '~> 0.22', require: false if ENV['COVERAGE'] == 'true'
+  gem 'simplecov', RUBY_VERSION < '2.5' ? '~> 0.16.0' : '~> 0.22', require: false if ENV['COVERAGE'] == 'true'
 end
 
 group :development do
diff --git a/spec/mongoid/candidate_limits_spec.rb b/spec/mongoid/candidate_limits_spec.rb
new file mode 100644
index 0000000..b0f1215
--- /dev/null
+++ b/spec/mongoid/candidate_limits_spec.rb
@@ -0,0 +1,19 @@
+require 'spec_helper'
+
+describe 'Full-text candidate limits' do
+  it 'bounds initial candidates and continues with limited candidates for later ngrams' do
+    config = BasicArtwork.mongoid_fulltext_config.values.first
+    original = config[:max_candidate_set_size]
+    begin
+      config[:max_candidate_set_size] = 1
+      artworks = 2.times.map { BasicArtwork.create!(title: 'alphabet beta') }
+
+      results = BasicArtwork.fulltext_search('alphabet beta', max_results: 1, return_scores: true)
+      expect(results.length).to eq(1)
+      expect(artworks).to include(results.first.first)
+      expect(results.first.last).to be > 0
+    ensure
+      config[:max_candidate_set_size] = original
+    end
+  end
+end
diff --git a/spec/version_spec.rb b/spec/version_spec.rb
new file mode 100644
index 0000000..a750f27
--- /dev/null
+++ b/spec/version_spec.rb
@@ -0,0 +1,9 @@
+require 'spec_helper'
+
+describe Mongoid::FullTextSearch do
+  it 'loads a standalone semantic version' do
+    stub_const('Mongoid::FullTextSearch', Module.new)
+    load File.expand_path('../lib/mongoid/full_text_search/version.rb', __dir__)
+    expect(Mongoid::FullTextSearch::VERSION).to match(/\A\d+\.\d+\.\d+\z/)
+  end
+end