mirror of
https://github.com/netbirdio/netbird.git
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98 lines
3.0 KiB
Go
98 lines
3.0 KiB
Go
package routemanager
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import (
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"bytes"
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"fmt"
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"net/netip"
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"os"
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"strings"
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"testing"
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log "github.com/sirupsen/logrus"
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"github.com/stretchr/testify/require"
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)
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func TestAddExistAndRemoveRoute(t *testing.T) {
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defaultGateway, err := getExistingRIBRouteGateway(netip.MustParsePrefix("0.0.0.0/0"))
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fmt.Println("defaultGateway: ", defaultGateway)
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if err != nil {
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t.Fatal("shouldn't return error when fetching the gateway: ", err)
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}
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testCases := []struct {
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name string
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prefix netip.Prefix
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preExistingPrefix netip.Prefix
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shouldAddRoute bool
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}{
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{
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name: "Should Add And Remove random Route",
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prefix: netip.MustParsePrefix("99.99.99.99/32"),
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shouldAddRoute: true,
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},
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{
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name: "Should Not Add Route if overlaps with default gateway",
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prefix: netip.MustParsePrefix(defaultGateway.String() + "/31"),
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shouldAddRoute: false,
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},
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{
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name: "Should Add Route if bigger network exists",
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prefix: netip.MustParsePrefix("100.100.100.0/24"),
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preExistingPrefix: netip.MustParsePrefix("100.100.0.0/16"),
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shouldAddRoute: true,
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},
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{
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name: "Should Add Route if smaller network exists",
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prefix: netip.MustParsePrefix("100.100.0.0/16"),
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preExistingPrefix: netip.MustParsePrefix("100.100.100.0/24"),
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shouldAddRoute: true,
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},
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{
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name: "Should Not Add Route if same network exists",
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prefix: netip.MustParsePrefix("100.100.0.0/16"),
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preExistingPrefix: netip.MustParsePrefix("100.100.0.0/16"),
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shouldAddRoute: false,
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},
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}
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MOCK_ADDR := "127.0.0.1"
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for _, testCase := range testCases {
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var buf bytes.Buffer
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log.SetOutput(&buf)
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defer func() {
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log.SetOutput(os.Stderr)
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}()
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t.Run(testCase.name, func(t *testing.T) {
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// Prepare the environment
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if testCase.preExistingPrefix.IsValid() {
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err := addToRouteTableIfNoExists(testCase.preExistingPrefix, MOCK_ADDR)
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require.NoError(t, err, "should not return err when adding pre-existing route")
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}
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// Add the route
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err = addToRouteTableIfNoExists(testCase.prefix, MOCK_ADDR)
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require.NoError(t, err, "should not return err when adding pre-existing route")
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if testCase.shouldAddRoute {
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// test if route exists after adding
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ok, err := existsInRouteTable(testCase.prefix)
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require.NoError(t, err, "should not return err")
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require.True(t, ok, "route should exist")
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// remove route again if added
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err = removeFromRouteTableIfNonSystem(testCase.prefix, MOCK_ADDR)
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require.NoError(t, err, "should not return err")
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}
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// route should either not have been added or should have been removed
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// In case of already existing route, it should not have been added (but still exist)
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ok, err := existsInRouteTable(testCase.prefix)
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fmt.Println("Buffer string: ", buf.String())
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require.NoError(t, err, "should not return err")
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if !strings.Contains(buf.String(), "because it already exists") {
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require.False(t, ok, "route should not exist")
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}
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})
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}
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}
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