open-consul/agent/config/ratelimited_file_watcher_test.go
Ronald dd0e8eec14
copyright headers for agent folder (#16704)
* copyright headers for agent folder

* Ignore test data files

* fix proto files and remove headers in agent/uiserver folder

* ignore deep-copy files
2023-03-28 14:39:22 -04:00

95 lines
2.7 KiB
Go

// Copyright (c) HashiCorp, Inc.
// SPDX-License-Identifier: MPL-2.0
package config
import (
"context"
"os"
"testing"
"time"
"github.com/hashicorp/go-hclog"
"github.com/hashicorp/consul/sdk/testutil"
"github.com/stretchr/testify/require"
)
func TestNewRateLimitedWatcher(t *testing.T) {
w, err := NewRateLimitedFileWatcher([]string{}, hclog.New(&hclog.LoggerOptions{}), 1*time.Nanosecond)
require.NoError(t, err)
require.NotNil(t, w)
}
func TestRateLimitedWatcherRenameEvent(t *testing.T) {
fileTmp := createTempConfigFile(t, "temp_config3")
filepaths := []string{createTempConfigFile(t, "temp_config1"), createTempConfigFile(t, "temp_config2")}
w, err := NewRateLimitedFileWatcher(filepaths, hclog.New(&hclog.LoggerOptions{}), 1*time.Nanosecond)
require.NoError(t, err)
w.Start(context.Background())
defer func() {
_ = w.Stop()
}()
require.NoError(t, err)
err = os.Rename(fileTmp, filepaths[0])
time.Sleep(timeoutDuration + 50*time.Millisecond)
require.NoError(t, err)
require.NoError(t, assertEvent(filepaths[0], w.EventsCh(), defaultTimeout))
// make sure we consume all events
_ = assertEvent(filepaths[0], w.EventsCh(), defaultTimeout)
}
func TestRateLimitedWatcherAddNotExist(t *testing.T) {
file := testutil.TempFile(t, "temp_config")
filename := file.Name() + randomStr(16)
w, err := NewRateLimitedFileWatcher([]string{filename}, hclog.New(&hclog.LoggerOptions{}), 1*time.Nanosecond)
require.Error(t, err, "no such file or directory")
require.Nil(t, w)
}
func TestEventRateLimitedWatcherWrite(t *testing.T) {
file := testutil.TempFile(t, "temp_config")
_, err := file.WriteString("test config")
require.NoError(t, err)
err = file.Sync()
require.NoError(t, err)
w, err := NewRateLimitedFileWatcher([]string{file.Name()}, hclog.New(&hclog.LoggerOptions{}), 1*time.Nanosecond)
require.NoError(t, err)
w.Start(context.Background())
defer func() {
_ = w.Stop()
}()
_, err = file.WriteString("test config 2")
require.NoError(t, err)
err = file.Sync()
require.NoError(t, err)
require.NoError(t, assertEvent(file.Name(), w.EventsCh(), defaultTimeout))
}
func TestEventRateLimitedWatcherMove(t *testing.T) {
filepath := createTempConfigFile(t, "temp_config1")
w, err := NewRateLimitedFileWatcher([]string{filepath}, hclog.New(&hclog.LoggerOptions{}), 1*time.Second)
require.NoError(t, err)
w.Start(context.Background())
defer func() {
_ = w.Stop()
}()
for i := 0; i < 10; i++ {
filepath2 := createTempConfigFile(t, "temp_config2")
err = os.Rename(filepath2, filepath)
time.Sleep(timeoutDuration + 50*time.Millisecond)
require.NoError(t, err)
}
require.NoError(t, assertEvent(filepath, w.EventsCh(), defaultTimeout))
require.Error(t, assertEvent(filepath, w.EventsCh(), defaultTimeout), "expected timeout error")
}