(t *testing.T)
| 32 | } |
| 33 | |
| 34 | func TestWaitForBackoffFallback(t *testing.T) { |
| 35 | maxRetries := uint(3) |
| 36 | backoff := retry.NewBackoff(maxRetries, 40*time.Millisecond, false) |
| 37 | backoff.Clock.After = immediateTimeAfter |
| 38 | log := zerolog.Nop() |
| 39 | resolveTTL := 10 * time.Second |
| 40 | mockFetcher := dynamicMockFetcher{ |
| 41 | protocolPercents: edgediscovery.ProtocolPercents{edgediscovery.ProtocolPercent{Protocol: "quic", Percentage: 100}}, |
| 42 | } |
| 43 | protocolSelector, err := connection.NewProtocolSelector( |
| 44 | "auto", |
| 45 | "", |
| 46 | false, |
| 47 | mockFetcher.fetch(), |
| 48 | resolveTTL, |
| 49 | &log, |
| 50 | ) |
| 51 | require.NoError(t, err) |
| 52 | |
| 53 | initProtocol := protocolSelector.Current() |
| 54 | assert.Equal(t, connection.QUIC, initProtocol) |
| 55 | |
| 56 | protoFallback := &protocolFallback{ |
| 57 | backoff, |
| 58 | initProtocol, |
| 59 | false, |
| 60 | } |
| 61 | |
| 62 | // Retry #0 and #1. At retry #2, we switch protocol, so the fallback loop has one more retry than this |
| 63 | for i := 0; i < int(maxRetries-1); i++ { |
| 64 | protoFallback.BackoffTimer() // simulate retry |
| 65 | ok := selectNextProtocol(&log, protoFallback, protocolSelector, nil) |
| 66 | assert.True(t, ok) |
| 67 | assert.Equal(t, initProtocol, protoFallback.protocol) |
| 68 | } |
| 69 | |
| 70 | // Retry fallback protocol |
| 71 | protoFallback.BackoffTimer() // simulate retry |
| 72 | ok := selectNextProtocol(&log, protoFallback, protocolSelector, nil) |
| 73 | assert.True(t, ok) |
| 74 | fallback, ok := protocolSelector.Fallback() |
| 75 | assert.True(t, ok) |
| 76 | assert.Equal(t, fallback, protoFallback.protocol) |
| 77 | assert.Equal(t, connection.HTTP2, protoFallback.protocol) |
| 78 | |
| 79 | currentGlobalProtocol := protocolSelector.Current() |
| 80 | assert.Equal(t, initProtocol, currentGlobalProtocol) |
| 81 | |
| 82 | // Simulate max retries again (retries reset after protocol switch) |
| 83 | for i := 0; i < int(maxRetries); i++ { |
| 84 | protoFallback.BackoffTimer() |
| 85 | } |
| 86 | // No protocol to fallback, return error |
| 87 | ok = selectNextProtocol(&log, protoFallback, protocolSelector, nil) |
| 88 | assert.False(t, ok) |
| 89 | |
| 90 | protoFallback.reset() |
| 91 | protoFallback.BackoffTimer() // simulate retry |
nothing calls this directly
no test coverage detected