mirror of
https://github.com/samber/lo.git
synced 2025-09-27 04:15:58 +08:00
46 lines
965 B
Go
46 lines
965 B
Go
package lo
|
|
|
|
import (
|
|
"math"
|
|
"testing"
|
|
|
|
"github.com/stretchr/testify/assert"
|
|
)
|
|
|
|
func TestSubstring(t *testing.T) {
|
|
is := assert.New(t)
|
|
|
|
str1 := Substring("hello", 0, 0)
|
|
str2 := Substring("hello", 10, 2)
|
|
str3 := Substring("hello", -10, 2)
|
|
str4 := Substring("hello", 0, 10)
|
|
str5 := Substring("hello", 0, 2)
|
|
str6 := Substring("hello", 2, 2)
|
|
str7 := Substring("hello", 2, 5)
|
|
str8 := Substring("hello", 2, 3)
|
|
str9 := Substring("hello", 2, 4)
|
|
str10 := Substring("hello", -2, 4)
|
|
str11 := Substring("hello", -4, 1)
|
|
str12 := Substring("hello", -4, math.MaxUint)
|
|
|
|
is.Equal("", str1)
|
|
is.Equal("", str2)
|
|
is.Equal("he", str3)
|
|
is.Equal("hello", str4)
|
|
is.Equal("he", str5)
|
|
is.Equal("ll", str6)
|
|
is.Equal("llo", str7)
|
|
is.Equal("llo", str8)
|
|
is.Equal("llo", str9)
|
|
is.Equal("lo", str10)
|
|
is.Equal("e", str11)
|
|
is.Equal("ello", str12)
|
|
}
|
|
|
|
func TestRuneLength(t *testing.T) {
|
|
is := assert.New(t)
|
|
|
|
is.Equal(5, RuneLength("hellô"))
|
|
is.Equal(6, len("hellô"))
|
|
}
|