add tpl func randFloat

Author: LinuxSuRen

docs/site/content/zh/latest/tasks/mock/simple.yaml

@@ -7,16 +7,20 @@ items:
     response:
       header:
         server: mock
+        content-type: application/json
       body: |
         {
           "count": 1,
           "items": [{
             "title": "fix: there is a bug on page {{ randEnum "one" }}",
-            "number": 123,
+            "number": {{randInt 100 199}},
+            "float": {{randFloat 0.0 1.0}},
             "message": "{{.Response.Header.server}}",
             "author": "someone",
-            "status": "success"
-          }]
+            "status": "success",
+            "created": "{{ now.Format "2006-01-02T15:04:05Z07:00" }}"
+          }],
+          "uptime": "{{uptime}}"
         }
   - name: base64
     request:

pkg/render/template.go

@@ -30,6 +30,7 @@ import (
 	mathrand "math/rand"
 	"strings"
 	"text/template"
+	"time"
 
 	"github.com/linuxsuren/api-testing/pkg/version"
 
@@ -179,6 +180,11 @@ var advancedFuncs = []AdvancedFunc{{
 		h.Write(data)
 		return hex.EncodeToString(h.Sum(nil))
 	},
+}, {
+	FuncName: "randFloat",
+	Func: func(from float64, to float64) float64 {
+		return mathrand.Float64()*(to-from) + from
+	},
 }, {
 	FuncName: "randEnum",
 	Func: func(items ...string) string {
@@ -189,8 +195,15 @@ var advancedFuncs = []AdvancedFunc{{
 	Func: func() string {
 		return fmt.Sprintf("%s@%s.com", util.String(3), util.String(3))
 	},
+}, {
+	FuncName: "uptime",
+	Func: func() string {
+		return time.Since(uptime).String()
+	},
 }}
 
+var uptime = time.Now()
+
 // GetAdvancedFuncs returns all the advanced functions
 func GetAdvancedFuncs() []AdvancedFunc {
 	return advancedFuncs