diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/net/lookup_test.go | 40 |
1 files changed, 37 insertions, 3 deletions
diff --git a/src/net/lookup_test.go b/src/net/lookup_test.go index ca1d804d50..217a24705b 100644 --- a/src/net/lookup_test.go +++ b/src/net/lookup_test.go @@ -60,6 +60,8 @@ var lookupGoogleSRVTests = []struct { }, } +var backoffDuration = [...]time.Duration{time.Second, 5 * time.Second, 30 * time.Second} + func TestLookupGoogleSRV(t *testing.T) { if testenv.Builder() == "" { testenv.MustHaveExternalNetwork(t) @@ -69,10 +71,20 @@ func TestLookupGoogleSRV(t *testing.T) { t.Skip("IPv4 is required") } - for _, tt := range lookupGoogleSRVTests { + attempts := 0 + for i := 0; i < len(lookupGoogleSRVTests); i++ { + tt := lookupGoogleSRVTests[i] cname, srvs, err := LookupSRV(tt.service, tt.proto, tt.name) if err != nil { testenv.SkipFlakyNet(t) + if attempts < len(backoffDuration) { + dur := backoffDuration[attempts] + t.Logf("backoff %v after failure %v\n", dur, err) + time.Sleep(dur) + attempts++ + i-- + continue + } t.Fatal(err) } if len(srvs) == 0 { @@ -107,9 +119,20 @@ func TestLookupGmailMX(t *testing.T) { defer dnsWaitGroup.Wait() - for _, tt := range lookupGmailMXTests { + attempts := 0 + for i := 0; i < len(lookupGmailMXTests); i++ { + tt := lookupGmailMXTests[i] mxs, err := LookupMX(tt.name) if err != nil { + testenv.SkipFlakyNet(t) + if attempts < len(backoffDuration) { + dur := backoffDuration[attempts] + t.Logf("backoff %v after failure %v\n", dur, err) + time.Sleep(dur) + attempts++ + i-- + continue + } t.Fatal(err) } if len(mxs) == 0 { @@ -176,9 +199,20 @@ func TestLookupGmailTXT(t *testing.T) { defer dnsWaitGroup.Wait() - for _, tt := range lookupGmailTXTTests { + attempts := 0 + for i := 0; i < len(lookupGmailTXTTests); i++ { + tt := lookupGmailTXTTests[i] txts, err := LookupTXT(tt.name) if err != nil { + testenv.SkipFlakyNet(t) + if attempts < len(backoffDuration) { + dur := backoffDuration[attempts] + t.Logf("backoff %v after failure %v\n", dur, err) + time.Sleep(dur) + attempts++ + i-- + continue + } t.Fatal(err) } if len(txts) == 0 { |