Files
beszel-ipv6/agent/fingerprint_test.go

103 lines
2.7 KiB
Go

//go:build testing
package agent
import (
"os"
"path/filepath"
"testing"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
func TestGetFingerprint(t *testing.T) {
t.Run("reads existing fingerprint from file", func(t *testing.T) {
dir := t.TempDir()
expected := "abc123def456"
err := os.WriteFile(filepath.Join(dir, fingerprintFileName), []byte(expected), 0644)
require.NoError(t, err)
fp := GetFingerprint(dir, "", "")
assert.Equal(t, expected, fp)
})
t.Run("trims whitespace from file", func(t *testing.T) {
dir := t.TempDir()
err := os.WriteFile(filepath.Join(dir, fingerprintFileName), []byte(" abc123 \n"), 0644)
require.NoError(t, err)
fp := GetFingerprint(dir, "", "")
assert.Equal(t, "abc123", fp)
})
t.Run("generates fingerprint when file does not exist", func(t *testing.T) {
dir := t.TempDir()
fp := GetFingerprint(dir, "", "")
assert.NotEmpty(t, fp)
})
t.Run("generates fingerprint when dataDir is empty", func(t *testing.T) {
fp := GetFingerprint("", "", "")
assert.NotEmpty(t, fp)
})
t.Run("generates consistent fingerprint for same inputs", func(t *testing.T) {
fp1 := GetFingerprint("", "myhost", "mycpu")
fp2 := GetFingerprint("", "myhost", "mycpu")
assert.Equal(t, fp1, fp2)
})
t.Run("prefers saved fingerprint over generated", func(t *testing.T) {
dir := t.TempDir()
require.NoError(t, SaveFingerprint(dir, "saved-fp"))
fp := GetFingerprint(dir, "anyhost", "anycpu")
assert.Equal(t, "saved-fp", fp)
})
}
func TestSaveFingerprint(t *testing.T) {
t.Run("saves fingerprint to file", func(t *testing.T) {
dir := t.TempDir()
err := SaveFingerprint(dir, "abc123")
require.NoError(t, err)
content, err := os.ReadFile(filepath.Join(dir, fingerprintFileName))
require.NoError(t, err)
assert.Equal(t, "abc123", string(content))
})
t.Run("overwrites existing fingerprint", func(t *testing.T) {
dir := t.TempDir()
require.NoError(t, SaveFingerprint(dir, "old"))
require.NoError(t, SaveFingerprint(dir, "new"))
content, err := os.ReadFile(filepath.Join(dir, fingerprintFileName))
require.NoError(t, err)
assert.Equal(t, "new", string(content))
})
}
func TestDeleteFingerprint(t *testing.T) {
t.Run("deletes existing fingerprint", func(t *testing.T) {
dir := t.TempDir()
fp := filepath.Join(dir, fingerprintFileName)
err := os.WriteFile(fp, []byte("abc123"), 0644)
require.NoError(t, err)
err = DeleteFingerprint(dir)
require.NoError(t, err)
// Verify file is gone
_, err = os.Stat(fp)
assert.True(t, os.IsNotExist(err))
})
t.Run("no error when file does not exist", func(t *testing.T) {
dir := t.TempDir()
err := DeleteFingerprint(dir)
assert.NoError(t, err)
})
}