tests: add examples with scaffold

examples/demo-with-go-plugin/plugin/debugtalk.go

@@ -0,0 +1,57 @@
+package main
+
+import (
+	"fmt"
+
+	"github.com/httprunner/funplugin/fungo"
+)
+
+func SumTwoInt(a, b int) int {
+	return a + b
+}
+
+func SumInts(args ...int) int {
+	var sum int
+	for _, arg := range args {
+		sum += arg
+	}
+	return sum
+}
+
+func Sum(args ...interface{}) (interface{}, error) {
+	var sum float64
+	for _, arg := range args {
+		switch v := arg.(type) {
+		case int:
+			sum += float64(v)
+		case float64:
+			sum += v
+		default:
+			return nil, fmt.Errorf("unexpected type: %T", arg)
+		}
+	}
+	return sum, nil
+}
+
+func SetupHookExample(args string) string {
+	return fmt.Sprintf("step name: %v, setup...", args)
+}
+
+func TeardownHookExample(args string) string {
+	return fmt.Sprintf("step name: %v, teardown...", args)
+}
+
+func GetVersion() string {
+	return "v4.0.0-alpha"
+}
+
+func main() {
+	fungo.Register("get_httprunner_version", GetVersion)
+	fungo.Register("sum_ints", SumInts)
+	fungo.Register("sum_two_int", SumTwoInt)
+	fungo.Register("sum_two", SumTwoInt)
+	fungo.Register("sum", Sum)
+	fungo.Register("setup_hook_example", SetupHookExample)
+	fungo.Register("teardown_hook_example", TeardownHookExample)
+	fungo.Serve()
+}