Fix token refresh logic to handle 401/403 errors automatically

.github/workflows/test.yaml

@@ -0,0 +1,90 @@
+name: Tests
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    branches:
+      - main
+
+permissions:
+  contents: read
+
+jobs:
+  test:
+    name: Run Tests
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Set up Go
+        uses: actions/setup-go@v5
+        with:
+          go-version: '1.21'
+          cache: true
+
+      - name: Download dependencies
+        run: go mod download
+
+      - name: Run unit tests
+        run: go test -v -race -coverprofile=coverage.txt -covermode=atomic ./internal/...
+
+      - name: Run integration tests
+        run: go test -v -race -run "^Test.*Integration$|^TestToken|^TestMCPTools|^TestError|^TestConcurrent" .
+
+      - name: Upload coverage to Codecov
+        uses: codecov/codecov-action@v4
+        with:
+          file: ./coverage.txt
+          flags: unittests
+          name: codecov-umbrella
+        continue-on-error: true
+
+  lint:
+    name: Lint
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Set up Go
+        uses: actions/setup-go@v5
+        with:
+          go-version: '1.21'
+          cache: true
+
+      - name: golangci-lint
+        uses: golangci/golangci-lint-action@v4
+        with:
+          version: latest
+          args: --timeout=5m
+        continue-on-error: true
+
+  build:
+    name: Build
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Set up Go
+        uses: actions/setup-go@v5
+        with:
+          go-version: '1.21'
+          cache: true
+
+      - name: Build
+        run: go build -v .
+
+      - name: Verify build artifacts
+        run: |
+          if [ ! -f "./last9-mcp-server" ]; then
+            echo "Build artifact not found"
+            exit 1
+          fi
+          ./last9-mcp-server --version || echo "Version check completed"

README.md

@@ -605,6 +605,25 @@ Configure Windsurf to use the MCP server:
 
 For local development and testing, you can run the MCP server in HTTP mode which makes it easier to debug requests and responses.
 
+### Running Tests Locally
+
+```bash
+# Run all tests with verbose output
+go test -v ./...
+
+# Run integration tests only
+go test -v -run "^Test.*Integration$|^TestToken|^TestMCPTools|^TestError|^TestConcurrent" .
+
+# Run with race detection
+go test -v -race ./...
+
+# Run with coverage
+go test -v -coverprofile=coverage.txt ./...
+go tool cover -html=coverage.txt  # View coverage in browser
+```
+
+**Note**: Integration tests use mock servers and don't require real credentials.
+
 ### Running in HTTP Mode
 
 Set the `HTTP_MODE` environment variable to enable HTTP server mode: