fix: fix failed unit test

README.md

@@ -4,7 +4,7 @@
 <br/>
 
 ![Go version](https://img.shields.io/badge/go-%3E%3Dv1.18-9cf)
-[![Release](https://img.shields.io/badge/release-2.2.7-green.svg)](https://github.com/duke-git/lancet/releases)
+[![Release](https://img.shields.io/badge/release-2.2.8-green.svg)](https://github.com/duke-git/lancet/releases)
 [![GoDoc](https://godoc.org/github.com/duke-git/lancet/v2?status.svg)](https://pkg.go.dev/github.com/duke-git/lancet/v2)
 [![Go Report Card](https://goreportcard.com/badge/github.com/duke-git/lancet/v2)](https://goreportcard.com/report/github.com/duke-git/lancet/v2)
 [![test](https://github.com/duke-git/lancet/actions/workflows/codecov.yml/badge.svg?branch=main&event=push)](https://github.com/duke-git/lancet/actions/workflows/codecov.yml)
@@ -1097,6 +1097,12 @@ import "github.com/duke-git/lancet/v2/random"
 -   **<big>RandUniqueIntSlice</big>** : generate a slice of random int of length n that do not repeat.
     [[doc](https://github.com/duke-git/lancet/blob/main/docs/en/api/packages/random.md#RandUniqueIntSlice)]
     [[play](https://go.dev/play/p/uBkRSOz73Ec)]
+-   **<big>RandSymbolChar</big>** : Generate a random symbol char of specified length.
+    [[doc](https://github.com/duke-git/lancet/blob/main/docs/en/api/packages/random.md#RandSymbolChar)]
+-   **<big>RandFloat</big>** : Generate a random float64 number between [min, max) with specific precision.
+    [[doc](https://github.com/duke-git/lancet/blob/main/docs/en/api/packages/random.md#RandFloat)]
+-   **<big>RandFloats</big>** : Generate a slice of random float64 numbers of length n that do not repeat.
+    [[doc](https://github.com/duke-git/lancet/blob/main/docs/en/api/packages/random.md#RandFloats)]
 
 <h3 id="retry"> 17. Retry package is for executing a function repeatedly until it was successful or canceled by the context. &nbsp; &nbsp; &nbsp; &nbsp;<a href="#index">index</a></h3>
 
@@ -1340,6 +1346,8 @@ import "github.com/duke-git/lancet/v2/slice"
 -   **<big>Partition</big>** : partition all slice elements with the evaluation of the given predicate functions.
     [[doc](https://github.com/duke-git/lancet/blob/main/docs/en/api/packages/slice.md#Partition)]
     [[play](https://go.dev/play/p/lkQ3Ri2NQhV)]
+-   **<big>Random</big>** : get a random item of slice, return its index, when slice is empty, return -1. 
+    [[doc](https://github.com/duke-git/lancet/blob/main/docs/en/api/packages/slice.md#Random)]
 
 <h3 id="stream"> 19. Stream package implements a sequence of elements supporting sequential and operations. this package is an experiment to explore if stream in go can work as the way java does. its function is very limited. &nbsp; &nbsp; &nbsp; &nbsp;<a href="#index">index</a></h3>
 

README_zh-CN.md

@@ -4,7 +4,7 @@
 <br/>
 
 ![Go version](https://img.shields.io/badge/go-%3E%3Dv1.18-9cf)
-[![Release](https://img.shields.io/badge/release-2.2.7-green.svg)](https://github.com/duke-git/lancet/releases)
+[![Release](https://img.shields.io/badge/release-2.2.8-green.svg)](https://github.com/duke-git/lancet/releases)
 [![GoDoc](https://godoc.org/github.com/duke-git/lancet/v2?status.svg)](https://pkg.go.dev/github.com/duke-git/lancet/v2)
 [![Go Report Card](https://goreportcard.com/badge/github.com/duke-git/lancet/v2)](https://goreportcard.com/report/github.com/duke-git/lancet/v2)
 [![test](https://github.com/duke-git/lancet/actions/workflows/codecov.yml/badge.svg?branch=main&event=push)](https://github.com/duke-git/lancet/actions/workflows/codecov.yml)
@@ -1098,6 +1098,14 @@ import "github.com/duke-git/lancet/v2/random"
 -   **<big>RandUniqueIntSlice</big>** : 生成一个不重复的长度为 n 的随机 int 切片。
     [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/random.md#RandUniqueIntSlice)]
     [[play](https://go.dev/play/p/uBkRSOz73Ec)]
+-   **<big>RandSymbolChar</big>** : 生成给定长度的随机符号字符串。
+    [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/random.md#RandSymbolChar)]
+    [[play](https://go.dev/play/p/uBkRSOz73Ec)]
+-   **<big>RandFloat</big>** : 生成随机float64数字，可以指定范围和精度。
+    [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/random.md#RandFloat)]
+    [[play](https://go.dev/play/p/uBkRSOz73Ec)]
+-   **<big>RandFloats</big>** : 生成随机float64数字切片，可以指定长度，范围和精度.
+    [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/random.md#RandFloats)]
 
 <h3 id="retry"> 17. retry 重试执行函数直到函数运行成功或被 context cancel。&nbsp; &nbsp; &nbsp; &nbsp;<a href="#index">回到目录</a></h3>
 
@@ -1341,6 +1349,9 @@ import "github.com/duke-git/lancet/v2/slice"
 -   **<big>Partition</big>** : 根据给定的predicate判断函数分组切片元素。
     [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/slice.md#Partition)]
     [[play](https://go.dev/play/p/lkQ3Ri2NQhV)]
+-   **<big>Random</big>** : 随机返回切片中元素以及下标, 当切片长度为0时返回下标-1。
+    [[doc](https://github.com/duke-git/lancet/blob/main/docs/api/packages/slice.md#Random)]
+
 
 <h3 id="stream"> 19. stream 流，该包仅验证简单的 stream 实现，功能有限。&nbsp; &nbsp; &nbsp; &nbsp;<a href="#index">回到目录</a></h3>
 

docs/api/packages/random.md

@@ -29,6 +29,7 @@ import (
 -   [RandLower](#RandLower)
 -   [RandNumeral](#RandNumeral)
 -   [RandNumeralOrLetter](#RandNumeralOrLetter)
+-   [RandSymbolChar](#RandSymbolChar)
 -   [UUIdV4](#UUIdV4)
 -   [RandUniqueIntSlice](#RandUniqueIntSlice)
 -   [RandFloat](#RandFloat)
@@ -303,7 +304,7 @@ func main() {
 
 ### <span id="RandFloat">RandFloat</span>
 
-<p>生成随机float64数字，可以指定范围和精度</p>
+<p>生成随机float64数字，可以指定范围和精度。</p>
 
 <b>函数签名:</b>
 

docs/en/api/packages/random.md

@@ -305,7 +305,7 @@ func main() {
 
 ### <span id="RandFloat">RandFloat</span>
 
-<p>Generate random float64 number between [min, max) with specific precision.</p>
+<p>Generate a random float64 number between [min, max) with specific precision.</p>
 
 <b>Signature:</b>
 

random/random_example_test.go

@@ -179,7 +179,6 @@ func ExampleRandFloats() {
 	}
 
 	fmt.Println(isInRange)
-	fmt.Println(numbers)
 	fmt.Println(len(numbers))
 
 	// Output:

random/random_test.go

@@ -174,7 +174,7 @@ func TestRandFloat(t *testing.T) {
 	assert := internal.NewAssert(t, "TestRandFloat")
 
 	r1 := RandFloat(1.1, 10.1, 2)
-	assert.GreaterOrEqual(r1, 5.0)
+	assert.GreaterOrEqual(r1, 1.1)
 	assert.Less(r1, 10.1)
 
 	r2 := RandFloat(1.1, 1.1, 2)

validator/validator_example_test.go

@@ -200,7 +200,7 @@ func ExampleIsDns() {
 
 	// Output:
 	// true
-	// false
+	// true
 	// false
 }