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// ⚡️ Fiber is an Express inspired web framework written in Go with ☕️
// 🤖 Github Repository: https://github.com/gofiber/fiber
// 📌 API Documentation: https://docs.gofiber.io
package utils
import (
"net"
"testing"
"github.com/stretchr/testify/require"
)
func Test_IsIPv4(t *testing.T) {
t.Parallel()
require.True(t, IsIPv4("255.255.255.255"))
require.True(t, IsIPv4("174.23.33.100"))
require.True(t, IsIPv4("127.0.0.1"))
require.True(t, IsIPv4("0.0.0.0"))
require.True(t, IsIPv4("1.1.1.1"))
require.False(t, IsIPv4(".0.0.0"))
require.False(t, IsIPv4("0.0.0."))
require.False(t, IsIPv4("0.0.0"))
require.False(t, IsIPv4(".0.0.0."))
require.False(t, IsIPv4("0.0.0.0.0"))
require.False(t, IsIPv4("0"))
require.False(t, IsIPv4(""))
require.False(t, IsIPv4("2345:0425:2CA1::0567:5673:23b5"))
require.False(t, IsIPv4("invalid"))
require.False(t, IsIPv4("189.12.34.260"))
require.False(t, IsIPv4("189.12.260.260"))
require.False(t, IsIPv4("189.260.260.260"))
require.False(t, IsIPv4("255.255.255.256"))
require.False(t, IsIPv4("999.999.999.999"))
require.False(t, IsIPv4("9999.9999.9999.9999"))
require.False(t, IsIPv4("192168.1.1"))
require.False(t, IsIPv4("192.1681.1"))
require.False(t, IsIPv4("192a168.1.1"))
}
func Test_IsIPv6(t *testing.T) {
t.Parallel()
// Valid Cases
require.True(t, IsIPv6("9396:9549:b4f7:8ed0:4791:1330:8c06:e62d"))
require.True(t, IsIPv6("2345:0425:2CA1::0567:5673:23b5"))
require.True(t, IsIPv6("2001:1:2:3:4:5:6:7"))
require.True(t, IsIPv6("::1"), "IPv6 loopback address with leading ellipsis")
require.True(t, IsIPv6("1::"), "Shortest possible IPv6 address with trailing ellipsis")
require.True(t, IsIPv6("2001:db8::8a2e:370:7334"), "Valid IPv6 address with ellipsis in the middle")
require.True(t, IsIPv6("::ffff:192.0.2.128"), "IPv4-mapped IPv6 address")
require.True(t, IsIPv6("::192.168.1.1"), "IPv4-compatible IPv6 address")
require.True(t, IsIPv6("ffff::"), "Address with a single non-zero group and leading ellipsis")
// Boundary values
require.True(t, IsIPv6("ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff"), "Maximum value for all groups")
// Invalid cases
require.False(t, IsIPv6("1::2::3"), "IPv6 address with multiple ellipses")
require.False(t, IsIPv6("2001::25de::cade"), "IPv6 address with multiple ellipses in the middle")
require.False(t, IsIPv6("g:a:b:c:d:e:f:1"), "Invalid character 'g' in address")
require.False(t, IsIPv6("::192.168.1.256"), "Invalid IPv4 segment in IPv6 address")
require.False(t, IsIPv6("1:2:3:4:5:6:7:8:9"), "IPv6 address too long")
require.False(t, IsIPv6("1:2:3"), "IPv6 address too short")
require.False(t, IsIPv6("1:::3:4"), "Consecutive colons not part of a valid ellipsis")
require.False(t, IsIPv6("::ffff:256.0.0.1"), "Embedded IPv4 address with invalid IPv4 segment")
require.False(t, IsIPv6("1111:2222:3333:4444:5555:6666:7777:8888:9999"), "IPv6 address with too many groups")
require.False(t, IsIPv6("2001:db8::8a2e:370g:7334"), "IPv6 address with invalid hex character 'g'")
require.False(t, IsIPv6("1.1.1.1"))
require.False(t, IsIPv6("2001:1:2:3:4:5:6:"))
require.False(t, IsIPv6(":1:2:3:4:5:6:"))
require.False(t, IsIPv6("1:2:3:4:5:6:"))
require.False(t, IsIPv6(""))
require.False(t, IsIPv6("invalid"))
}
func Test_IsIPv6_EdgeCases(t *testing.T) {
t.Parallel()
// hex group larger than 4 digits
require.False(t, IsIPv6("1:2:3:4:5:6:7:12345"))
// IPv4 part at wrong position
require.False(t, IsIPv6("1:2:3:4:1.2.3.4"))
// IPv4 part would exceed length
require.False(t, IsIPv6("1:2:3:4:5:6:7:1.2.3.4"))
// ellipsis present but no zero group
require.False(t, IsIPv6("1::2:3:4:5:6:7:8"))
}
func Test_IPWhitespace(t *testing.T) {
t.Parallel()
require.False(t, IsIPv4(" 1.1.1.1"))
require.False(t, IsIPv4("1.1.1.1 "))
require.False(t, IsIPv6(" ::1"))
require.False(t, IsIPv6("::1 "))
}
// go test -v -run=^$ -bench=Benchmark_IsIPv4 -benchmem -count=6
func Benchmark_IsIPv4(b *testing.B) {
ip := "174.23.33.100"
var res bool
b.Run("fiber", func(b *testing.B) {
for i := 0; i < b.N; i++ {
res = IsIPv4(ip)
}
require.True(b, res)
})
b.Run("default", func(b *testing.B) {
for i := 0; i < b.N; i++ {
res = net.ParseIP(ip) != nil
}
require.True(b, res)
})
}
// go test -v -run=^$ -bench=Benchmark_IsIPv6 -benchmem -count=6
func Benchmark_IsIPv6(b *testing.B) {
ip := "9396:9549:b4f7:8ed0:4791:1330:8c06:e62d"
var res bool
b.Run("fiber", func(b *testing.B) {
for i := 0; i < b.N; i++ {
res = IsIPv6(ip)
}
require.True(b, res)
})
b.Run("default", func(b *testing.B) {
for i := 0; i < b.N; i++ {
res = net.ParseIP(ip) != nil
}
require.True(b, res)
})
}
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