go-network-configurator/ifupdown_test.go
2026-07-01 15:17:11 -05:00

164 lines
3.3 KiB
Go

package netconfig
import (
"context"
"net"
"os"
"path/filepath"
"testing"
)
// Validate the netplan configuration parser/writer functions.
func TestIfUpDown(t *testing.T) {
// Setup test file.
tmpDir, err := os.MkdirTemp("", "")
if err != nil {
t.Fatal(err)
}
configPath := filepath.Join(tmpDir, "interfaces")
testDir, err := filepath.Abs("./tests/ifupdown")
if err != nil {
t.Fatal(err)
}
resultsDir := filepath.Join(testDir, "results")
err = fileCopy(filepath.Join(testDir, "interfaces"), configPath)
if err != nil {
t.Fatal(err)
}
// Setup ifupdown and parse test file.
i := new(ifUpDown)
i.BaseConfig = configPath
i.BackupDir = configPath + ".backup"
err = i.ReadFile(i.BaseConfig)
if err != nil {
t.Fatal(err)
}
// Get the interfaces state.
interfaces, err := i.GetInterfaces()
if err != nil {
t.Fatal(err)
}
// Verify interfaces read from file.
err = testVerifyInterfaces(interfaces, resultsDir, 1)
if err != nil {
t.Error(err)
}
// Test setting the IP addresses on an interface.
err = i.SetIfaceAddresses(context.Background(), "test_eth0", []*net.IPNet{
{
IP: net.ParseIP("203.0.113.2"),
Mask: net.CIDRMask(24, 32),
},
{
IP: net.ParseIP("203.0.113.3"),
Mask: net.CIDRMask(24, 32),
},
{
IP: net.ParseIP("fc00::2"),
Mask: net.CIDRMask(64, 128),
},
}, net.ParseIP("203.0.113.6"), net.ParseIP("fc00::1"))
if err != nil {
t.Fatal(err)
}
// Test setting routes on an interface.
err = i.SetIfaceRoutes(context.Background(), "test_eth1", []*Route{
{
Destination: &net.IPNet{
IP: net.ParseIP("abcd:ef12:3455:3::"),
Mask: net.CIDRMask(64, 128),
},
Gateway: net.ParseIP("abcd:ef12:3456:3::1"),
Metric: 100,
},
{
Destination: &net.IPNet{
IP: net.ParseIP("10.253.2.0"),
Mask: net.CIDRMask(24, 32),
},
Gateway: net.ParseIP("1.2.3.1"),
Metric: 100,
},
})
if err != nil {
t.Fatal(err)
}
// Verify we can read the modified files.
i.Interfaces = nil
err = i.ReadFile(i.BaseConfig)
if err != nil {
t.Fatal(err)
}
// Get the interfaces state.
interfaces, err = i.GetInterfaces()
if err != nil {
t.Fatal(err)
}
// Verify interfaces read from file.
err = testVerifyInterfaces(interfaces, resultsDir, 2)
if err != nil {
t.Error(err)
}
// Read the current file and expected state.
err = testVerifyResults(resultsDir, tmpDir, 1)
if err != nil {
t.Error(err)
}
// Test setting the IP addresses on an interface.
err = i.SetIfaceAddresses(context.Background(), "test_backend", []*net.IPNet{
{
IP: net.ParseIP("1.2.10.4"),
Mask: net.CIDRMask(24, 32),
},
}, net.ParseIP("1.2.10.254"), nil)
if err != nil {
t.Fatal(err)
}
// Test setting routes on an interface.
err = i.SetIfaceRoutes(context.Background(), "test_eth0", []*Route{})
if err != nil {
t.Fatal(err)
}
// Verify we can read the modified files.
i.Interfaces = nil
err = i.ReadFile(i.BaseConfig)
if err != nil {
t.Fatal(err)
}
// Get the interfaces state.
interfaces, err = i.GetInterfaces()
if err != nil {
t.Fatal(err)
}
// Verify interfaces read from file.
err = testVerifyInterfaces(interfaces, resultsDir, 3)
if err != nil {
t.Error(err)
}
// Read the current file and expected state.
err = testVerifyResults(resultsDir, tmpDir, 2)
if err != nil {
t.Error(err)
}
// Cleanup.
err = os.RemoveAll(tmpDir)
if err != nil {
t.Fatal(err)
}
}