ci: Simplify codecov integration

.github/workflows/ci.yml

@@ -38,31 +38,6 @@ jobs:
 
       - run: bundle exec rake test
 
-      - name: "Upload coverage results"
-        uses: actions/upload-artifact@v3
-        with:
-          name: coverage-${{ matrix.ruby }}
-          path: coverage/.resultset.json
-
-  test-coverage:
-    runs-on: ubuntu-latest
-    needs: test
-
-    steps:
-      - uses: actions/checkout@v4
-
-      - uses: ruby/setup-ruby@v1
-        with:
-          ruby-version: ruby-3.2
-          bundler-cache: true
-
-      - name: "Download coverage results"
-        uses: actions/download-artifact@v3
-        with:
-          path: coverage
-
-      - run: bundle exec rake test:coverage
-
       - name: Upload coverage reports to Codecov
         uses: codecov/codecov-action@v3
         env:

.simplecov

@@ -9,7 +9,8 @@ SimpleCov.start do
   enable_coverage :branch
 
   if ENV["CI"]
-    formatter SimpleCov::Formatter::SimpleFormatter
+    require "simplecov-cobertura"
+    formatter SimpleCov::Formatter::CoberturaFormatter
   else
     formatter SimpleCov::Formatter::MultiFormatter.new([
       SimpleCov::Formatter::SimpleFormatter,

Rakefile

@@ -22,22 +22,6 @@ task :test do
   end
 end
 
-namespace :test do
-  desc "Generate test coverage report"
-  task :coverage do
-    require "simplecov"
-
-    SimpleCov.collate Dir["coverage/**/.resultset.json"] do
-      if ENV["CI"]
-        require "simplecov-cobertura"
-        formatter SimpleCov::Formatter::CoberturaFormatter
-      else
-        formatter SimpleCov::Formatter::HTMLFormatter
-      end
-    end
-  end
-end
-
 desc "Lint codebase"
 task :lint do
   sh "bundle exec rubocop --color"