feat: add example command and tests

Author: smlx

cmd/go-cli-github/main.go

@@ -15,6 +15,7 @@ var (
 // CLI represents the command-line interface.
 type CLI struct {
 	Version VersionCmd `kong:"cmd,help='Print version information'"`
+	Serve   ServeCmd   `kong:"cmd,help='Example serve command'"`
 }
 
 func main() {

cmd/go-cli-github/serve.go

@@ -0,0 +1,16 @@
+package main
+
+import (
+	"fmt"
+
+	"github.com/smlx/go-cli-github/internal/server"
+)
+
+// ServeCmd represents the `serve` command.
+type ServeCmd struct{}
+
+// Run the serve command.
+func (*ServeCmd) Run() error {
+	fmt.Println(server.Serve())
+	return nil
+}

internal/server/serve.go

@@ -0,0 +1,6 @@
+package server
+
+// Serve is an example function.
+func Serve() string {
+	return "example serve command"
+}

internal/server/serve_test.go

@@ -0,0 +1,24 @@
+package server_test
+
+import (
+	"testing"
+
+	"github.com/smlx/go-cli-github/internal/server"
+)
+
+func TestServe(t *testing.T) {
+	var testCases = map[string]struct {
+		input  string
+		expect string
+	}{
+		"test Serve": {input: "", expect: "example serve command"},
+	}
+	for name, tc := range testCases {
+		t.Run(name, func(tt *testing.T) {
+			result := server.Serve()
+			if result != tc.expect {
+				tt.Fatalf("expected %s, got %s", tc.expect, result)
+			}
+		})
+	}
+}