func TestClientOverrideDefaultHTTPClientTimeoutRace(t *testing.T) {
server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
w.Write([]byte("us-east-1a"))
}))
cfg := aws.NewConfig().WithEndpoint(server.URL)
runEC2MetadataClients(t, cfg, 100)
}
// Config returns the default configuration without credentials.
// To retrieve a config with credentials also included use
// `defaults.Get().Config` instead.
//
// Generally you shouldn't need to use this method directly, but
// is available if you need to reset the configuration of an
// existing service client or session.
func Config() *aws.Config {
return aws.NewConfig().
WithCredentials(credentials.AnonymousCredentials).
WithRegion(os.Getenv("AWS_REGION")).
WithHTTPClient(http.DefaultClient).
WithMaxRetries(aws.UseServiceDefaultRetries).
WithLogger(aws.NewDefaultLogger()).
WithLogLevel(aws.LogOff).
WithSleepDelay(time.Sleep)
}
func TestValidateEndpointHandler(t *testing.T) {
os.Clearenv()
svc := awstesting.NewClient(aws.NewConfig().WithRegion("us-west-2"))
svc.Handlers.Clear()
svc.Handlers.Validate.PushBackNamed(corehandlers.ValidateEndpointHandler)
req := svc.NewRequest(&request.Operation{Name: "Operation"}, nil, nil)
err := req.Build()
assert.NoError(t, err)
}
func TestRequestExhaustRetries(t *testing.T) {
delays := []time.Duration{}
sleepDelay := func(delay time.Duration) {
delays = append(delays, delay)
}
reqNum := 0
reqs := []http.Response{
{StatusCode: 500, Body: body(`{"__type":"UnknownError","message":"An error occurred."}`)},
{StatusCode: 500, Body: body(`{"__type":"UnknownError","message":"An error occurred."}`)},
{StatusCode: 500, Body: body(`{"__type":"UnknownError","message":"An error occurred."}`)},
{StatusCode: 500, Body: body(`{"__type":"UnknownError","message":"An error occurred."}`)},
}
s := awstesting.NewClient(aws.NewConfig().WithSleepDelay(sleepDelay))
s.Handlers.Validate.Clear()
s.Handlers.Unmarshal.PushBack(unmarshal)
s.Handlers.UnmarshalError.PushBack(unmarshalError)
s.Handlers.Send.Clear() // mock sending
s.Handlers.Send.PushBack(func(r *request.Request) {
r.HTTPResponse = &reqs[reqNum]
reqNum++
})
r := s.NewRequest(&request.Operation{Name: "Operation"}, nil, nil)
err := r.Send()
assert.NotNil(t, err)
if e, ok := err.(awserr.RequestFailure); ok {
assert.Equal(t, 500, e.StatusCode())
} else {
assert.Fail(t, "Expected error to be a service failure")
}
assert.Equal(t, "UnknownError", err.(awserr.Error).Code())
assert.Equal(t, "An error occurred.", err.(awserr.Error).Message())
assert.Equal(t, 3, int(r.RetryCount))
expectDelays := []struct{ min, max time.Duration }{{30, 59}, {60, 118}, {120, 236}}
for i, v := range delays {
min := expectDelays[i].min * time.Millisecond
max := expectDelays[i].max * time.Millisecond
assert.True(t, min <= v && v <= max,
"Expect delay to be within range, i:%d, v:%s, min:%s, max:%s", i, v, min, max)
}
}
func main() {
// configure aws client
sess := session.New()
svc := ecr.New(sess, aws.NewConfig().WithRegion(getRegion(sess)))
// this lets us handle multiple registries
params := &ecr.GetAuthorizationTokenInput{
RegistryIds: getRegistryIds(),
}
// request the token
resp, err := svc.GetAuthorizationToken(params)
check(err)
// fields to send to template
fields := make([]Auth, len(resp.AuthorizationData))
for i, auth := range resp.AuthorizationData {
// extract base64 token
data, err := base64.StdEncoding.DecodeString(*auth.AuthorizationToken)
check(err)
// extract username and password
token := strings.SplitN(string(data), ":", 2)
// object to pass to template
fields[i] = Auth{
Token: *auth.AuthorizationToken,
User: token[0],
Pass: token[1],
ProxyEndpoint: *(auth.ProxyEndpoint),
ExpiresAt: *(auth.ExpiresAt),
}
}
// run the template
err = getTemplate().Execute(os.Stdout, fields)
check(err)
}
// test that retries don't occur for 4xx status codes with a response type that can't be retried
func TestRequest4xxUnretryable(t *testing.T) {
s := awstesting.NewClient(aws.NewConfig().WithMaxRetries(10))
s.Handlers.Validate.Clear()
s.Handlers.Unmarshal.PushBack(unmarshal)
s.Handlers.UnmarshalError.PushBack(unmarshalError)
s.Handlers.Send.Clear() // mock sending
s.Handlers.Send.PushBack(func(r *request.Request) {
r.HTTPResponse = &http.Response{StatusCode: 401, Body: body(`{"__type":"SignatureDoesNotMatch","message":"Signature does not match."}`)}
})
out := &testData{}
r := s.NewRequest(&request.Operation{Name: "Operation"}, nil, out)
err := r.Send()
assert.NotNil(t, err)
if e, ok := err.(awserr.RequestFailure); ok {
assert.Equal(t, 401, e.StatusCode())
} else {
assert.Fail(t, "Expected error to be a service failure")
}
assert.Equal(t, "SignatureDoesNotMatch", err.(awserr.Error).Code())
assert.Equal(t, "Signature does not match.", err.(awserr.Error).Message())
assert.Equal(t, 0, int(r.RetryCount))
}
// test that retries occur for 4xx status codes with a response type that can be retried - see `shouldRetry`
func TestRequestRecoverRetry4xxRetryable(t *testing.T) {
reqNum := 0
reqs := []http.Response{
{StatusCode: 400, Body: body(`{"__type":"Throttling","message":"Rate exceeded."}`)},
{StatusCode: 429, Body: body(`{"__type":"ProvisionedThroughputExceededException","message":"Rate exceeded."}`)},
{StatusCode: 200, Body: body(`{"data":"valid"}`)},
}
s := awstesting.NewClient(aws.NewConfig().WithMaxRetries(10))
s.Handlers.Validate.Clear()
s.Handlers.Unmarshal.PushBack(unmarshal)
s.Handlers.UnmarshalError.PushBack(unmarshalError)
s.Handlers.Send.Clear() // mock sending
s.Handlers.Send.PushBack(func(r *request.Request) {
r.HTTPResponse = &reqs[reqNum]
reqNum++
})
out := &testData{}
r := s.NewRequest(&request.Operation{Name: "Operation"}, nil, out)
err := r.Send()
assert.Nil(t, err)
assert.Equal(t, 2, int(r.RetryCount))
assert.Equal(t, "valid", out.Data)
}
// test that retries occur for 5xx status codes
func TestRequestRecoverRetry5xx(t *testing.T) {
reqNum := 0
reqs := []http.Response{
{StatusCode: 500, Body: body(`{"__type":"UnknownError","message":"An error occurred."}`)},
{StatusCode: 501, Body: body(`{"__type":"UnknownError","message":"An error occurred."}`)},
{StatusCode: 200, Body: body(`{"data":"valid"}`)},
}
s := awstesting.NewClient(aws.NewConfig().WithMaxRetries(10))
s.Handlers.Validate.Clear()
s.Handlers.Unmarshal.PushBack(unmarshal)
s.Handlers.UnmarshalError.PushBack(unmarshalError)
s.Handlers.Send.Clear() // mock sending
s.Handlers.Send.PushBack(func(r *request.Request) {
r.HTTPResponse = &reqs[reqNum]
reqNum++
})
out := &testData{}
r := s.NewRequest(&request.Operation{Name: "Operation"}, nil, out)
err := r.Send()
assert.Nil(t, err)
assert.Equal(t, 2, int(r.RetryCount))
assert.Equal(t, "valid", out.Data)
}
func TestClientDisableOverrideDefaultHTTPClientTimeout(t *testing.T) {
svc := ec2metadata.New(session.New(aws.NewConfig().WithEC2MetadataDisableTimeoutOverride(true)))
assert.Equal(t, http.DefaultClient, svc.Config.HTTPClient)
}