handler

package main

import (
	"fmt"
	"net/http/httptest"

	"github.com/gin-gonic/gin"
	"github.com/itsubaki/fourkeys/handler"
)

func main() {
	gin.SetMode(gin.ReleaseMode)

	req := httptest.NewRequest("GET", "/_test?limit=999", nil)

	c, _ := gin.CreateTestContext(httptest.NewRecorder())
	c.Request = req
	handler.SetLimit(c)

	fmt.Println(c.GetString("limit"))

}

Output:
999

package main

import (
	"fmt"
	"math/rand"
	"net/http/httptest"

	"github.com/gin-gonic/gin"
	"github.com/itsubaki/fourkeys/handler"
)

func main() {
	gin.SetMode(gin.ReleaseMode)

	req := httptest.NewRequest("GET", "/", nil)
	value := fmt.Sprintf("%016x%016x/%d;o=1", rand.Int63(), rand.Int63(), rand.Int63())
	req.Header.Add("X-Cloud-Trace-Context", value)

	c, _ := gin.CreateTestContext(httptest.NewRecorder())
	c.Request = req
	handler.SetTraceID(c)

	fmt.Println(c.GetBool("trace_true"))

}

Output:
true