package metrics import ( "net/http" "testing" "github.com/rs/zerolog" "github.com/stretchr/testify/assert" "github.com/cloudflare/cloudflared/connection" ) func TestReadyServer_makeResponse(t *testing.T) { type fields struct { isConnected map[int]bool } tests := []struct { name string fields fields wantOK bool wantReadyConnections int }{ { name: "One connection online => HTTP 200", fields: fields{ isConnected: map[int]bool{ 0: false, 1: false, 2: true, 3: false, }, }, wantOK: true, wantReadyConnections: 1, }, { name: "No connections online => no HTTP 200", fields: fields{ isConnected: map[int]bool{ 0: false, 1: false, 2: false, 3: false, }, }, wantReadyConnections: 0, }, } for _, tt := range tests { t.Run(tt.name, func(t *testing.T) { rs := &ReadyServer{ isConnected: tt.fields.isConnected, } gotStatusCode, gotReadyConnections := rs.makeResponse() if tt.wantOK && gotStatusCode != http.StatusOK { t.Errorf("ReadyServer.makeResponse() gotStatusCode = %v, want ok = %v", gotStatusCode, tt.wantOK) } if gotReadyConnections != tt.wantReadyConnections { t.Errorf("ReadyServer.makeResponse() gotReadyConnections = %v, want %v", gotReadyConnections, tt.wantReadyConnections) } }) } } func TestReadinessEventHandling(t *testing.T) { nopLogger := zerolog.Nop() rs := NewReadyServer(&nopLogger) // start not ok code, ready := rs.makeResponse() assert.NotEqualValues(t, http.StatusOK, code) assert.Zero(t, ready) // one connected => ok rs.OnTunnelEvent(connection.Event{ Index: 1, EventType: connection.Connected, }) code, ready = rs.makeResponse() assert.EqualValues(t, http.StatusOK, code) assert.EqualValues(t, 1, ready) // another connected => still ok rs.OnTunnelEvent(connection.Event{ Index: 2, EventType: connection.Connected, }) code, ready = rs.makeResponse() assert.EqualValues(t, http.StatusOK, code) assert.EqualValues(t, 2, ready) // one reconnecting => still ok rs.OnTunnelEvent(connection.Event{ Index: 2, EventType: connection.Reconnecting, }) code, ready = rs.makeResponse() assert.EqualValues(t, http.StatusOK, code) assert.EqualValues(t, 1, ready) // Regression test for TUN-3777 rs.OnTunnelEvent(connection.Event{ Index: 1, EventType: connection.RegisteringTunnel, }) code, ready = rs.makeResponse() assert.NotEqualValues(t, http.StatusOK, code) assert.Zero(t, ready) // other connected then unregistered => not ok rs.OnTunnelEvent(connection.Event{ Index: 1, EventType: connection.Connected, }) code, ready = rs.makeResponse() assert.EqualValues(t, http.StatusOK, code) assert.EqualValues(t, 1, ready) rs.OnTunnelEvent(connection.Event{ Index: 1, EventType: connection.Unregistering, }) code, ready = rs.makeResponse() assert.NotEqualValues(t, http.StatusOK, code) assert.Zero(t, ready) // other disconnected => not ok rs.OnTunnelEvent(connection.Event{ Index: 1, EventType: connection.Disconnected, }) code, ready = rs.makeResponse() assert.NotEqualValues(t, http.StatusOK, code) assert.Zero(t, ready) }