package phpfpm import ( "crypto/rand" "encoding/binary" "fmt" "net" "net/http" "net/http/fcgi" "net/http/httptest" "testing" "github.com/influxdata/telegraf/testutil" "github.com/stretchr/testify/assert" "github.com/stretchr/testify/require" ) type statServer struct{} // We create a fake server to return test data func (s statServer) ServeHTTP(w http.ResponseWriter, r *http.Request) { w.Header().Set("Content-Type", "text/plain") w.Header().Set("Content-Length", fmt.Sprint(len(outputSample))) fmt.Fprint(w, outputSample) } func TestPhpFpmGeneratesMetrics_From_Http(t *testing.T) { sv := statServer{} ts := httptest.NewServer(sv) defer ts.Close() r := &phpfpm{ Urls: []string{ts.URL}, } var acc testutil.Accumulator err := acc.GatherError(r.Gather) require.NoError(t, err) tags := map[string]string{ "pool": "www", "url": ts.URL, } fields := map[string]interface{}{ "start_since": int64(1991), "accepted_conn": int64(3), "listen_queue": int64(1), "max_listen_queue": int64(0), "listen_queue_len": int64(0), "idle_processes": int64(1), "active_processes": int64(1), "total_processes": int64(2), "max_active_processes": int64(1), "max_children_reached": int64(2), "slow_requests": int64(1), } acc.AssertContainsTaggedFields(t, "phpfpm", fields, tags) } func TestPhpFpmGeneratesMetrics_From_Fcgi(t *testing.T) { // Let OS find an available port tcp, err := net.Listen("tcp", "127.0.0.1:0") if err != nil { t.Fatal("Cannot initialize test server") } defer tcp.Close() s := statServer{} go fcgi.Serve(tcp, s) //Now we tested again above server r := &phpfpm{ Urls: []string{"fcgi://" + tcp.Addr().String() + "/status"}, } var acc testutil.Accumulator err = acc.GatherError(r.Gather) require.NoError(t, err) tags := map[string]string{ "pool": "www", "url": r.Urls[0], } fields := map[string]interface{}{ "start_since": int64(1991), "accepted_conn": int64(3), "listen_queue": int64(1), "max_listen_queue": int64(0), "listen_queue_len": int64(0), "idle_processes": int64(1), "active_processes": int64(1), "total_processes": int64(2), "max_active_processes": int64(1), "max_children_reached": int64(2), "slow_requests": int64(1), } acc.AssertContainsTaggedFields(t, "phpfpm", fields, tags) } func TestPhpFpmGeneratesMetrics_From_Socket(t *testing.T) { // Create a socket in /tmp because we always have write permission and if the // removing of socket fail when system restart /tmp is clear so // we don't have junk files around var randomNumber int64 binary.Read(rand.Reader, binary.LittleEndian, &randomNumber) tcp, err := net.Listen("unix", fmt.Sprintf("/tmp/test-fpm%d.sock", randomNumber)) if err != nil { t.Fatal("Cannot initialize server on port ") } defer tcp.Close() s := statServer{} go fcgi.Serve(tcp, s) r := &phpfpm{ Urls: []string{tcp.Addr().String()}, } var acc testutil.Accumulator err = acc.GatherError(r.Gather) require.NoError(t, err) tags := map[string]string{ "pool": "www", "url": r.Urls[0], } fields := map[string]interface{}{ "start_since": int64(1991), "accepted_conn": int64(3), "listen_queue": int64(1), "max_listen_queue": int64(0), "listen_queue_len": int64(0), "idle_processes": int64(1), "active_processes": int64(1), "total_processes": int64(2), "max_active_processes": int64(1), "max_children_reached": int64(2), "slow_requests": int64(1), } acc.AssertContainsTaggedFields(t, "phpfpm", fields, tags) } func TestPhpFpmGeneratesMetrics_From_Socket_Custom_Status_Path(t *testing.T) { // Create a socket in /tmp because we always have write permission. If the // removing of socket fail we won't have junk files around. Cuz when system // restart, it clears out /tmp var randomNumber int64 binary.Read(rand.Reader, binary.LittleEndian, &randomNumber) tcp, err := net.Listen("unix", fmt.Sprintf("/tmp/test-fpm%d.sock", randomNumber)) if err != nil { t.Fatal("Cannot initialize server on port ") } defer tcp.Close() s := statServer{} go fcgi.Serve(tcp, s) r := &phpfpm{ Urls: []string{tcp.Addr().String() + ":custom-status-path"}, } var acc testutil.Accumulator err = acc.GatherError(r.Gather) require.NoError(t, err) tags := map[string]string{ "pool": "www", "url": r.Urls[0], } fields := map[string]interface{}{ "start_since": int64(1991), "accepted_conn": int64(3), "listen_queue": int64(1), "max_listen_queue": int64(0), "listen_queue_len": int64(0), "idle_processes": int64(1), "active_processes": int64(1), "total_processes": int64(2), "max_active_processes": int64(1), "max_children_reached": int64(2), "slow_requests": int64(1), } acc.AssertContainsTaggedFields(t, "phpfpm", fields, tags) } //When not passing server config, we default to localhost //We just want to make sure we did request stat from localhost func TestPhpFpmDefaultGetFromLocalhost(t *testing.T) { r := &phpfpm{} var acc testutil.Accumulator err := acc.GatherError(r.Gather) require.Error(t, err) assert.Contains(t, err.Error(), "127.0.0.1/status") } func TestPhpFpmGeneratesMetrics_Throw_Error_When_Fpm_Status_Is_Not_Responding(t *testing.T) { r := &phpfpm{ Urls: []string{"http://aninvalidone"}, } var acc testutil.Accumulator err := acc.GatherError(r.Gather) require.Error(t, err) assert.Contains(t, err.Error(), `Unable to connect to phpfpm status page 'http://aninvalidone': Get http://aninvalidone: dial tcp: lookup aninvalidone`) } func TestPhpFpmGeneratesMetrics_Throw_Error_When_Socket_Path_Is_Invalid(t *testing.T) { r := &phpfpm{ Urls: []string{"/tmp/invalid.sock"}, } var acc testutil.Accumulator err := acc.GatherError(r.Gather) require.Error(t, err) assert.Equal(t, `Socket doesn't exist '/tmp/invalid.sock': stat /tmp/invalid.sock: no such file or directory`, err.Error()) } const outputSample = ` pool: www process manager: dynamic start time: 11/Oct/2015:23:38:51 +0000 start since: 1991 accepted conn: 3 listen queue: 1 max listen queue: 0 listen queue len: 0 idle processes: 1 active processes: 1 total processes: 2 max active processes: 1 max children reached: 2 slow requests: 1 `