added tests for the helper method

net/helper_test.go

+package net
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func IPv4ToUint32Test(t *testing.T) {
+	tests := []struct {
+		input    []byte
+		expected uint32
+	}{
+		{
+			input:    []byte{192, 168, 1, 5},
+			expected: 3232235781,
+		},
+		{
+			input:    []byte{10, 0, 0, 0},
+			expected: 167772160,
+		},
+		{
+			input:    []byte{172, 24, 5, 1},
+			expected: 2887255297,
+		},
+	}
+
+	for _, test := range tests {
+		res := IPv4ToUint32(test.input)
+		assert.Equal(t, test.expected, res)
+	}
+}