Added memcheck to CI

.github/workflows/build.yml

@@ -8,12 +8,12 @@ jobs:
         include:
           - ruby: 3.3
             os: ubuntu-24.04
-          - ruby: 3.2
-            os: ubuntu-22.04
-          - ruby: 3.1
-            os: ubuntu-20.04
-          - ruby: "3.0"
-            os: macos-latest
+          # - ruby: 3.2
+          #   os: ubuntu-22.04
+          # - ruby: 3.1
+          #   os: ubuntu-20.04
+          # - ruby: "3.0"
+          #   os: macos-latest
     runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@v4
@@ -29,3 +29,6 @@ jobs:
           bundler-cache: true
       - run: MAKE="make -j$(getconf _NPROCESSORS_ONLN)" bundle exec rake compile
       - run: bundle exec rake test
+
+      - run: sudo apt-get update && sudo apt-get install valgrind
+      - run: bundle exec rake test:valgrind

Gemfile

@@ -5,3 +5,4 @@ gemspec
 gem "rake"
 gem "rake-compiler"
 gem "minitest", ">= 5"
+gem "ruby_memcheck"

Rakefile

@@ -1,12 +1,18 @@
 require "bundler/gem_tasks"
 require "rake/testtask"
 require "rake/extensiontask"
+require "ruby_memcheck"
 
 task default: :test
-Rake::TestTask.new do |t|
+test_config = lambda do |t|
   t.libs << "test"
   t.pattern = "test/**/*_test.rb"
 end
+Rake::TestTask.new(:test, &test_config)
+
+namespace :test do
+  RubyMemcheck::TestTask.new(:valgrind, &test_config)
+end
 
 Rake::ExtensionTask.new("faiss") do |ext|
   ext.name = "ext"