refactor(tests): split suites by execution level and speed up CI

.github/workflows/ci.yml

@@ -12,7 +12,7 @@ on:
 
 concurrency:
   group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
-  cancel-in-progress: false
+  cancel-in-progress: true
 
 jobs:
   linting:
@@ -52,17 +52,14 @@ jobs:
       - name: Run mypy type checking
         run: uv run --frozen mypy langfuse --no-error-summary
 
-  ci:
+  unit-tests:
     runs-on: ubuntu-latest
     timeout-minutes: 30
     env:
       LANGFUSE_BASE_URL: "http://localhost:3000"
-      LANGFUSE_PUBLIC_KEY: "pk-lf-1234567890"
-      LANGFUSE_SECRET_KEY: "sk-lf-1234567890"
-      OPENAI_API_KEY: ${{ secrets.OPENAI_API_KEY }}
-      # SERPAPI_API_KEY: ${{ secrets.SERPAPI_API_KEY }}
-      HUGGINGFACEHUB_API_TOKEN: ${{ secrets.HUGGINGFACEHUB_API_TOKEN }}
-      ANTHROPIC_API_KEY: ${{ secrets.ANTHROPIC_API_KEY }}
+      LANGFUSE_PUBLIC_KEY: "pk-lf-test"
+      LANGFUSE_SECRET_KEY: "sk-lf-test"
+      OPENAI_API_KEY: "test-openai-key"
     strategy:
       fail-fast: false
       matrix:
@@ -73,56 +70,95 @@ jobs:
           - "3.13"
           - "3.14"
 
-    name: Test on Python version ${{ matrix.python-version }}
+    name: Unit tests on Python ${{ matrix.python-version }}
     steps:
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
-      - uses: pnpm/action-setup@fc06bc1257f339d1d5d8b3a19a8cae5388b55320 # v5
+      - uses: actions/checkout@v3
+      - name: Install uv and set Python version
+        uses: astral-sh/setup-uv@v7
         with:
-          version: 10.33.0
+          version: "0.11.2"
+          python-version: ${{ matrix.python-version }}
+          enable-cache: true
+
+      - name: Check Python version
+        run: python --version
 
-      - name: Clone langfuse server
+      - name: Install the project dependencies
+        run: uv sync --locked
+
+      - name: Run the automated tests
         run: |
-          git clone https://github.com/langfuse/langfuse.git ./langfuse-server && echo $(cd ./langfuse-server && git rev-parse HEAD)
+          python --version
+          uv run --frozen pytest -n auto --dist worksteal -s -v --log-cli-level=INFO tests/unit
 
-      - name: Setup node (for langfuse server)
-        uses: actions/setup-node@53b83947a5a98c8d113130e565377fae1a50d02f # v6.3.0
-        with:
-          node-version: 24
+  e2e-tests:
+    runs-on: ubuntu-latest
+    timeout-minutes: 30
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - suite: e2e
+            job_name: E2E shard 1 tests on Python 3.13
+            shard_name: shard-1
+            shard_index: 0
+            shard_count: 2
+          - suite: e2e
+            job_name: E2E shard 2 tests on Python 3.13
+            shard_name: shard-2
+            shard_index: 1
+            shard_count: 2
+          - suite: live_provider
+            job_name: E2E live-provider tests on Python 3.13
+            shard_name: live-provider
+    env:
+      LANGFUSE_BASE_URL: "http://localhost:3000"
+      LANGFUSE_PUBLIC_KEY: "pk-lf-1234567890"
+      LANGFUSE_SECRET_KEY: "sk-lf-1234567890"
+      LANGFUSE_INIT_ORG_ID: "0c6c96f4-0ca0-4f16-92a8-6dd7d7c6a501"
+      LANGFUSE_INIT_ORG_NAME: "SDK Test Org"
+      LANGFUSE_INIT_PROJECT_ID: "7a88fb47-b4e2-43b8-a06c-a5ce950dc53a"
+      LANGFUSE_INIT_PROJECT_NAME: "SDK Test Project"
+      LANGFUSE_INIT_PROJECT_PUBLIC_KEY: "pk-lf-1234567890"
+      LANGFUSE_INIT_PROJECT_SECRET_KEY: "sk-lf-1234567890"
+      LANGFUSE_INIT_USER_EMAIL: "sdk-tests@langfuse.local"
+      LANGFUSE_INIT_USER_NAME: "SDK Tests"
+      LANGFUSE_INIT_USER_PASSWORD: "langfuse-ci-password"
+      LANGFUSE_E2E_READ_TIMEOUT_SECONDS: "60"
+      LANGFUSE_E2E_READ_INTERVAL_SECONDS: "0.5"
+      OPENAI_API_KEY: ${{ secrets.OPENAI_API_KEY }}
+      # SERPAPI_API_KEY: ${{ secrets.SERPAPI_API_KEY }}
+      HUGGINGFACEHUB_API_TOKEN: ${{ secrets.HUGGINGFACEHUB_API_TOKEN }}
+      ANTHROPIC_API_KEY: ${{ secrets.ANTHROPIC_API_KEY }}
 
-      - name: Cache langfuse server dependencies
-        uses: actions/cache@668228422ae6a00e4ad889ee87cd7109ec5666a7 # v5
+    name: ${{ matrix.job_name }}
+    steps:
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
+      - name: Install uv and set Python version
+        uses: astral-sh/setup-uv@cec208311dfd045dd5311c1add060b2062131d57 # v8
         with:
-          path: ./langfuse-server/node_modules
-          key: |
-            langfuse-server-${{ hashFiles('./langfuse-server/package-lock.json') }}
-            langfuse-server-
+          version: "0.11.2"
+          python-version: "3.13"
+          enable-cache: true
+      - name: Install the project dependencies
+        run: uv sync --locked
+      - name: Check uv Python version
+        run: uv run --frozen python --version
+      - name: Prepare langfuse server compose
+        run: |
+          mkdir -p ./langfuse-server
+          LANGFUSE_SERVER_SHA="$(git ls-remote https://github.com/langfuse/langfuse.git HEAD | cut -f1)"
+          curl -fsSL "https://raw.githubusercontent.com/langfuse/langfuse/${LANGFUSE_SERVER_SHA}/docker-compose.yml" \
+            -o ./langfuse-server/docker-compose.yml
+          echo "${LANGFUSE_SERVER_SHA}"
 
       - name: Run langfuse server
         run: |
           cd ./langfuse-server
 
-          echo "::group::Run langfuse server"
-          TELEMETRY_ENABLED=false docker compose up -d postgres
-          echo "::endgroup::"
-
-          echo "::group::Logs from langfuse server"
-          TELEMETRY_ENABLED=false docker compose logs
-          echo "::endgroup::"
-
-          echo "::group::Install dependencies (necessary to run seeder)"
-          pnpm i
-          echo "::endgroup::"
-
-          echo "::group::Seed db"
-          cp .env.dev.example .env
-          pnpm run db:migrate          
-          pnpm run db:seed
-          echo "::endgroup::"
-          rm -rf .env
-
-          echo "::group::Run server"
-
+          echo "::group::Start langfuse server"
           TELEMETRY_ENABLED=false \
+          NEXT_PUBLIC_LANGFUSE_RUN_NEXT_INIT=true \
           LANGFUSE_S3_MEDIA_UPLOAD_ENDPOINT=http://localhost:9090 \
           LANGFUSE_INGESTION_QUEUE_DELAY_MS=10 \
           LANGFUSE_INGESTION_CLICKHOUSE_WRITE_INTERVAL_MS=10 \
@@ -131,51 +167,81 @@ jobs:
           LANGFUSE_ENABLE_EVENTS_TABLE_V2_APIS=true \
           LANGFUSE_ENABLE_EVENTS_TABLE_OBSERVATIONS=true \
           docker compose up -d
-
           echo "::endgroup::"
 
-      # Add this step to check the health of the container
       - name: Health check for langfuse server
         run: |
           echo "Checking if the langfuse server is up..."
           retry_count=0
-          max_retries=10
-          until curl --output /dev/null --silent --head --fail http://localhost:3000/api/public/health
+          max_retries=20
+          until curl --output /dev/null --silent --head --fail http://localhost:3000/api/public/health && \
+            uv run --frozen python -c "from langfuse import Langfuse; client = Langfuse(); project_id = client._get_project_id(); assert project_id == '7a88fb47-b4e2-43b8-a06c-a5ce950dc53a', project_id; print(project_id)"
           do
             retry_count=`expr $retry_count + 1`
             echo "Attempt $retry_count of $max_retries..."
             if [ $retry_count -ge $max_retries ]; then
               echo "Langfuse server did not respond in time. Printing logs..."
-              docker logs langfuse-server-langfuse-web-1
+              (cd ./langfuse-server && docker compose ps)
+              (cd ./langfuse-server && docker compose logs langfuse-web langfuse-worker)
               echo "Failing the step..."
               exit 1
             fi
             sleep 5
           done
           echo "Langfuse server is up and running!"
 
-      - name: Install uv and set Python version
-        uses: astral-sh/setup-uv@cec208311dfd045dd5311c1add060b2062131d57 # v8
-        with:
-          version: "0.11.2"
-          python-version: ${{ matrix.python-version }}
-          enable-cache: true
-
-      - name: Check Python version
-        run: python --version
-
-      - name: Install the project dependencies
-        run: uv sync --locked
-
-      - name: Run the automated tests
+      - name: Select e2e shard files
+        if: ${{ matrix.suite == 'e2e' }}
         run: |
-          python --version
-          uv run --frozen pytest -n auto --dist loadfile -s -v --log-cli-level=INFO
+          uv run --frozen python scripts/select_e2e_shard.py \
+            --shard-index ${{ matrix.shard_index }} \
+            --shard-count ${{ matrix.shard_count }} \
+            --json
+          uv run --frozen python scripts/select_e2e_shard.py \
+            --shard-index ${{ matrix.shard_index }} \
+            --shard-count ${{ matrix.shard_count }} \
+            > "$RUNNER_TEMP/e2e-shard-files.txt"
+          cat "$RUNNER_TEMP/e2e-shard-files.txt"
+
+      - name: Run the parallel end-to-end tests
+        if: ${{ matrix.suite == 'e2e' }}
+        run: |
+          uv run --frozen python --version
+          mapfile -t e2e_files < "$RUNNER_TEMP/e2e-shard-files.txt"
+          set +e
+          uv run --frozen pytest -n 4 --dist worksteal -s -v --log-cli-level=INFO "${e2e_files[@]}" -m "not serial_e2e"
+          status=$?
+          set -e
+          if [ "$status" -eq 5 ]; then
+            echo "No parallel e2e tests selected for this shard."
+          elif [ "$status" -ne 0 ]; then
+            exit "$status"
+          fi
+
+      - name: Run serial end-to-end tests
+        if: ${{ matrix.suite == 'e2e' }}
+        run: |
+          mapfile -t e2e_files < "$RUNNER_TEMP/e2e-shard-files.txt"
+          set +e
+          uv run --frozen pytest -s -v --log-cli-level=INFO "${e2e_files[@]}" -m "serial_e2e"
+          status=$?
+          set -e
+          if [ "$status" -eq 5 ]; then
+            echo "No serial e2e tests selected for this shard."
+          elif [ "$status" -ne 0 ]; then
+            exit "$status"
+          fi
+
+      - name: Run live-provider tests
+        if: ${{ matrix.suite == 'live_provider' }}
+        run: |
+          uv run --frozen python --version
+          uv run --frozen pytest -n 4 --dist worksteal -s -v --log-cli-level=INFO tests/live_provider -m "live_provider"
 
   all-tests-passed:
     # This allows us to have a branch protection rule for tests and deploys with matrix
     runs-on: ubuntu-latest
-    needs: [ci, linting, type-checking]
+    needs: [unit-tests, e2e-tests, linting, type-checking]
     if: always()
     steps:
       - name: Successful deploy