117 lines
3.1 KiB
Go
117 lines
3.1 KiB
Go
package daemon
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import (
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"fmt"
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"net/http"
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"net/http/httptest"
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"net/url"
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"strconv"
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"testing"
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"time"
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"github.com/aoagents/agent-orchestrator/backend/internal/daemonmeta"
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"github.com/aoagents/agent-orchestrator/backend/internal/runfile"
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)
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// healthzBody returns a handler that answers /healthz with the given service
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// name and pid, mimicking the daemon's real liveness probe.
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func healthzBody(service string, pid int) http.HandlerFunc {
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return func(w http.ResponseWriter, r *http.Request) {
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if r.URL.Path != "/healthz" {
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http.NotFound(w, r)
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return
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}
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w.Header().Set("Content-Type", "application/json")
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_, _ = fmt.Fprintf(w, `{"status":"ok","service":%q,"pid":%d}`, service, pid)
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}
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}
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func hostPort(t *testing.T, rawURL string) (string, int) {
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t.Helper()
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u, err := url.Parse(rawURL)
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if err != nil {
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t.Fatalf("parse %q: %v", rawURL, err)
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}
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port, err := strconv.Atoi(u.Port())
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if err != nil {
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t.Fatalf("port from %q: %v", rawURL, err)
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}
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return u.Hostname(), port
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}
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func TestRunFileOwnerServing(t *testing.T) {
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const pid = 4242
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tests := []struct {
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name string
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handler http.HandlerFunc
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want bool
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}{
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{
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name: "matching service and pid is the live owner",
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handler: healthzBody(daemonmeta.ServiceName, pid),
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want: true,
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},
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{
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name: "reused pid: same port, different process pid",
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handler: healthzBody(daemonmeta.ServiceName, pid+1),
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want: false,
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},
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{
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name: "foreign service occupying the port",
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handler: healthzBody("some-other-service", pid),
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want: false,
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},
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{
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name: "non-2xx response",
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handler: func(w http.ResponseWriter, _ *http.Request) {
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w.WriteHeader(http.StatusInternalServerError)
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},
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want: false,
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},
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{
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name: "unparseable body",
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handler: func(w http.ResponseWriter, _ *http.Request) {
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_, _ = w.Write([]byte("not json"))
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},
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want: false,
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},
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}
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for _, tc := range tests {
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t.Run(tc.name, func(t *testing.T) {
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srv := httptest.NewServer(tc.handler)
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defer srv.Close()
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host, port := hostPort(t, srv.URL)
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got := runFileOwnerServing(srv.Client(), host, &runfile.Info{PID: pid, Port: port})
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if got != tc.want {
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t.Errorf("runFileOwnerServing = %v, want %v", got, tc.want)
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}
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})
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}
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}
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func TestRunFileOwnerServingNoListener(t *testing.T) {
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// Bind then immediately close to obtain a port nothing is listening on, so
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// the probe hits a refused connection — the leaked-run-file case.
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srv := httptest.NewServer(http.NotFoundHandler())
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host, port := hostPort(t, srv.URL)
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srv.Close()
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client := &http.Client{Timeout: time.Second}
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if runFileOwnerServing(client, host, &runfile.Info{PID: 4242, Port: port}) {
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t.Error("runFileOwnerServing on a dead port = true, want false (stale, safe to overwrite)")
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}
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}
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func TestRunFileOwnerServingNilOrZeroPort(t *testing.T) {
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client := &http.Client{Timeout: time.Second}
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if runFileOwnerServing(client, "127.0.0.1", nil) {
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t.Error("runFileOwnerServing(nil) = true, want false")
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}
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if runFileOwnerServing(client, "127.0.0.1", &runfile.Info{PID: 1, Port: 0}) {
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t.Error("runFileOwnerServing(port 0) = true, want false")
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}
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}
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