Adding artifact when CI fails to inspect logs

.github/workflows/main.yml

@@ -52,6 +52,7 @@ jobs:
     env:
       TARGET_DB: ${{ matrix.database }}
       BUNDLE_GEMFILE: ${{ github.workspace }}/gemfiles/${{ matrix.gemfile }}.gemfile
+      RAILS_ENV: test
     steps:
       - name: Checkout code
         uses: actions/checkout@v4
@@ -68,3 +69,12 @@ jobs:
           bin/rails db:setup
       - name: Run tests
         run: bin/rails test
+      - name: Upload logs on failure
+        if: ${{ failure() }}
+        uses: actions/upload-artifact@v4
+        with:
+          name: logs-${{ matrix.database }}-${{ matrix.gemfile }}-ruby${{ matrix.ruby-version }}-attempt${{ github.run_attempt }}
+          path: |
+            test/dummy/log/test.log
+          if-no-files-found: ignore
+          retention-days: 7

test/dummy/config/environments/test.rb

@@ -59,4 +59,9 @@
   config.solid_queue.logger = ActiveSupport::Logger.new(nil)
 
   config.solid_queue.shutdown_timeout = 2.seconds
+
+  config.log_formatter = proc do |severity, timestamp, progname, msg|
+    ts = timestamp.getlocal.strftime("%H:%M:%S.%3N")
+    "#{ts} #{msg}\n"
+  end
 end