func TestThatReloadCommandExecutesOnFsChanges(t *testing.T) {
tmpDir := setup(t)
defer os.RemoveAll(tmpDir)
// start the utility in background
go main()
status = sync.GetStatusInstance()
if time.Since(status.LastSync).Seconds() < 2 {
t.Fatal("sync should not happen immediately" + time.Since(status.LastSync).String())
}
if time.Since(status.LastReload).Seconds() > 2 {
t.Fatal("LastReload should be current but was " + time.Since(status.LastReload).String())
}
if time.Since(status.LastFSChangeDetected).Seconds() > 2 {
t.Fatal("LastFSChangeDetected should be current but was " + time.Since(status.LastFSChangeDetected).String())
}
// wait for some time to init
time.Sleep(500 * time.Millisecond)
//modifyFS: create a new directory and file
dir, err := ioutil.TempDir(tmpDir, "new-dir-")
if err != nil {
t.Fatal(err)
}
f1, err := createFile(t, dir, "new-file-content")
if err != nil {
t.Fatal(err)
}
defer os.Remove(f1.Name()) // clean up
// use a reload command to change the content of the new file added
// so that we later test its content, expecting to find this change
reload_cmd := "sed -i.old s/new/reload_cmd/ " + f1.Name()
reloadCmd = &reload_cmd
// wait for some time to track the changes
time.Sleep(1000 * time.Millisecond)
// check that reload cmd has been executed
if time.Since(status.LastSync).Seconds() > 1 {
t.Fatal("sync should have executed earlier than 1.5 but was executed " + time.Since(status.LastSync).String())
}
if time.Since(status.LastReload).Seconds() > 1 {
t.Fatal("reload should have executed earlier than 1.5s but was executed " + time.Since(status.LastReload).String())
}
if time.Since(status.LastFSChangeDetected).Seconds() > 1 {
t.Fatal("FS changes should have been detected earlier than 1.5s but was detected " + time.Since(status.LastFSChangeDetected).String())
}
c, err := ioutil.ReadFile(f1.Name())
if !strings.HasPrefix(string(c), "reload_cmd-file-content") {
t.Fatal("reload cmd did not run correctly. File content was:" + string(c))
}
//reset the reload command
reload_cmd = "echo reload-cmd not defined"
reloadCmd = &reload_cmd
}
package ws
import (
"encoding/json"
"github.com/adobe-apiplatform/api-gateway-config-supervisor/sync"
"log"
"net/http"
)
var status = sync.GetStatusInstance()
func healthCheckHandler(w http.ResponseWriter, r *http.Request) {
w.Header().Add("Content-type", "application/json")
status.Status = "OK"
json.NewEncoder(w).Encode(status)
}
// Starts a web server to expose health-check endpoints
// the assumption is that as long as the server works, the sync works too
// We may add more checks to make sure the sync executed correctly
func RunWS(httpAddr string) {
log.Println("Starting HTTP on port", httpAddr)
http.HandleFunc("/health-check", healthCheckHandler)
http.ListenAndServe(httpAddr, nil)
}
