ci(coverage): Add Codecov integration and prettier update

.github/workflows/test.yaml

@@ -36,3 +36,14 @@ jobs:
 
       - name: Run tests
         run: npm test
+
+      - name: Upload coverage reports to Codecov
+        uses: codecov/codecov-action@v5
+        if: matrix.node-version == 22
+        with:
+          token: ${{ secrets.CODECOV_TOKEN }}
+          files: ./coverage/lcov.info
+          flags: unittests
+          name: codecov-umbrella
+          fail_ci_if_error: true
+          verbose: true

codecov.yml

@@ -0,0 +1,68 @@
+codecov:
+  require_ci_to_pass: true
+  notify:
+    wait_for_ci: true
+
+coverage:
+  precision: 2
+  round: down
+  range: '70...100'
+
+  status:
+    project:
+      default:
+        target: auto
+        threshold: 1%
+        informational: false
+    patch:
+      default:
+        target: auto
+        threshold: 1%
+        informational: false
+
+comment:
+  layout: 'reach,diff,flags,tree,files'
+  behavior: default
+  require_changes: false
+
+ignore:
+  - 'tests/**/*'
+  - 'examples/**/*'
+  - '**/*.d.ts'
+  - 'dist/**/*'
+  # Large generated OpenAPI type files (no runtime logic)
+  - 'src/types/api.types.ts'
+  - 'src/types/openapi.types.ts'
+  - 'src/types/new-api.types.ts'
+  # Pure type definition files (no runtime logic)
+  - 'src/types/auth.types.ts'
+  - 'src/types/base.types.ts'
+  - 'src/types/dataset.types.ts'
+  - 'src/types/export.types.ts'
+  - 'src/types/index.ts'
+  - 'src/types/log-stream.types.ts'
+  - 'src/types/node.types.ts'
+  - 'src/types/prompt-template.types.ts'
+  - 'src/types/runs.types.ts'
+  - 'src/types/search.types.ts'
+  - 'src/types/shared.types.ts'
+  - 'src/types/streaming-adapter.types.ts'
+  - 'src/types/tag.types.ts'
+  - 'src/types/transaction.types.ts'
+  - 'src/types/logging/logger.types.ts'
+  - 'src/types/logging/session.types.ts'
+  - 'src/types/logging/trace.types.ts'
+  # Runtime logic files are NOT ignored (will be tracked by coverage):
+  # - src/types/routes.types.ts (Routes enum)
+  # - src/types/project.types.ts (ProjectTypes const)
+  # - src/types/models.types.ts (Models enum)
+  # - src/types/errors.types.ts (GalileoAPIError class)
+  # - src/types/metrics.types.ts (GalileoMetrics const)
+  # - src/types/message.types.ts (MessageRole const)
+  # - src/types/experiment.types.ts (DEFAULT_PROMPT_RUN_SETTINGS)
+  # - src/types/job.types.ts (enums and consts)
+  # - src/types/scorer.types.ts (enums)
+  # - src/types/document.types.ts (Document class)
+  # - src/types/legacy-step.types.ts (classes and enums)
+  # - src/types/logging/step.types.ts (runtime classes and consts)
+  # - src/types/logging/span.types.ts (runtime classes and enums)

jest.config.js

@@ -1,5 +1,49 @@
 module.exports = {
   preset: 'ts-jest',
   testEnvironment: 'node',
-  moduleFileExtensions: ['ts', 'tsx', 'js', 'json', 'node']
+  moduleFileExtensions: ['ts', 'tsx', 'js', 'json', 'node'],
+  collectCoverage: true,
+  coverageDirectory: 'coverage',
+  coverageReporters: ['text', 'lcov', 'json', 'html'],
+  collectCoverageFrom: [
+    'src/**/*.{ts,tsx}',
+    '!src/**/*.d.ts',
+    // Exclude large generated OpenAPI type files (no runtime logic)
+    '!src/types/api.types.ts',
+    '!src/types/openapi.types.ts',
+    '!src/types/new-api.types.ts',
+    // Exclude pure type definition files (no runtime logic)
+    '!src/types/auth.types.ts',
+    '!src/types/base.types.ts',
+    '!src/types/dataset.types.ts',
+    '!src/types/export.types.ts',
+    '!src/types/index.ts',
+    '!src/types/log-stream.types.ts',
+    '!src/types/node.types.ts',
+    '!src/types/prompt-template.types.ts',
+    '!src/types/runs.types.ts',
+    '!src/types/search.types.ts',
+    '!src/types/shared.types.ts',
+    '!src/types/streaming-adapter.types.ts',
+    '!src/types/tag.types.ts',
+    '!src/types/transaction.types.ts',
+    '!src/types/logging/logger.types.ts',
+    '!src/types/logging/session.types.ts',
+    '!src/types/logging/trace.types.ts'
+    // Keep runtime logic files for coverage:
+    // - src/types/routes.types.ts (Routes enum)
+    // - src/types/project.types.ts (ProjectTypes const)
+    // - src/types/models.types.ts (Models enum)
+    // - src/types/errors.types.ts (GalileoAPIError class, isGalileoAPIStandardErrorData function)
+    // - src/types/metrics.types.ts (GalileoMetrics const)
+    // - src/types/message.types.ts (MessageRole const)
+    // - src/types/experiment.types.ts (DEFAULT_PROMPT_RUN_SETTINGS const)
+    // - src/types/job.types.ts (enums and Scorers const)
+    // - src/types/scorer.types.ts (enums)
+    // - src/types/document.types.ts (Document class)
+    // - src/types/legacy-step.types.ts (classes and enums)
+    // - src/types/logging/step.types.ts (StepType const, Metrics class, BaseStep class)
+    // - src/types/logging/span.types.ts (enums and classes)
+  ],
+  coveragePathIgnorePatterns: ['/node_modules/', '/dist/', '/tests/']
 };