chore(netlink): debug log ip rule commands in netlink instead of routing package

internal/netlink/rule_test.go

@@ -0,0 +1,50 @@
+package netlink
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func Test_ruleDbgMsg(t *testing.T) {
+	t.Parallel()
+
+	testCases := map[string]struct {
+		add    bool
+		rule   Rule
+		dbgMsg string
+	}{
+		"default values": {
+			dbgMsg: "ip rule del pref 0",
+		},
+		"add rule": {
+			add: true,
+			rule: Rule{
+				Src:      makeNetipPrefix(1),
+				Dst:      makeNetipPrefix(2),
+				Table:    100,
+				Priority: 101,
+			},
+			dbgMsg: "ip rule add from 1.1.1.0/24 to 2.2.2.0/24 lookup 100 pref 101",
+		},
+		"del rule": {
+			rule: Rule{
+				Src:      makeNetipPrefix(1),
+				Dst:      makeNetipPrefix(2),
+				Table:    100,
+				Priority: 101,
+			},
+			dbgMsg: "ip rule del from 1.1.1.0/24 to 2.2.2.0/24 lookup 100 pref 101",
+		},
+	}
+
+	for name, testCase := range testCases {
+		t.Run(name, func(t *testing.T) {
+			t.Parallel()
+
+			dbgMsg := ruleDbgMsg(testCase.add, testCase.rule)
+
+			assert.Equal(t, testCase.dbgMsg, dbgMsg)
+		})
+	}
+}