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package azblob
import (
"context"
"errors"
"net/http"
"net/url"
"github.com/Azure/azure-pipeline-go/pipeline"
chk "gopkg.in/check.v1"
)
type requestIDTestScenario int
const (
// Testing scenarios for echoing Client Request ID
clientRequestIDMissing requestIDTestScenario = 1
errorFromNextPolicy requestIDTestScenario = 2
clientRequestIDMatch requestIDTestScenario = 3
clientRequestIDNoMatch requestIDTestScenario = 4
errorMessageClientRequestIDNoMatch = "client Request ID from request and response does not match"
errorMessageFromNextPolicy = "error is not nil"
)
type clientRequestIDPolicy struct {
matchID string
scenario requestIDTestScenario
}
func (p clientRequestIDPolicy) Do(ctx context.Context, request pipeline.Request) (pipeline.Response, error) {
var header http.Header = make(map[string][]string)
var err error
// Set headers and errors according to each scenario
switch p.scenario {
case clientRequestIDMissing:
case errorFromNextPolicy:
err = errors.New(errorMessageFromNextPolicy)
case clientRequestIDMatch:
header.Add(xMsClientRequestID, request.Header.Get(xMsClientRequestID))
case clientRequestIDNoMatch:
header.Add(xMsClientRequestID, "fake-client-request-id")
default:
header.Add(xMsClientRequestID, newUUID().String())
}
response := http.Response{Header: header}
return pipeline.NewHTTPResponse(&response), err
}
func (s *aztestsSuite) TestEchoClientRequestIDMissing(c *chk.C) {
factory := NewUniqueRequestIDPolicyFactory()
// Scenario 1: Client Request ID is missing
policy := factory.New(clientRequestIDPolicy{scenario: clientRequestIDMissing}, nil)
request, _ := pipeline.NewRequest("GET", url.URL{}, nil)
resp, err := policy.Do(context.Background(), request)
c.Assert(err, chk.IsNil)
c.Assert(resp, chk.NotNil)
c.Assert(resp.Response().Header.Get(xMsClientRequestID), chk.Equals, "")
}
func (s *aztestsSuite) TestEchoClientRequestIDErrorFromNextPolicy(c *chk.C) {
factory := NewUniqueRequestIDPolicyFactory()
// Scenario 2: Do method returns an error
policy := factory.New(clientRequestIDPolicy{scenario: errorFromNextPolicy}, nil)
request, _ := pipeline.NewRequest("GET", url.URL{}, nil)
resp, err := policy.Do(context.Background(), request)
c.Assert(err, chk.NotNil)
c.Assert(err.Error(), chk.Equals, errorMessageFromNextPolicy)
c.Assert(resp, chk.NotNil)
}
func (s *aztestsSuite) TestEchoClientRequestIDMatch(c *chk.C) {
factory := NewUniqueRequestIDPolicyFactory()
// Scenario 3: Client Request ID matches
matchRequestID := newUUID().String()
policy := factory.New(clientRequestIDPolicy{matchID: matchRequestID, scenario: clientRequestIDMatch}, nil)
request, _ := pipeline.NewRequest("GET", url.URL{}, nil)
request.Header.Set(xMsClientRequestID, matchRequestID)
resp, err := policy.Do(context.Background(), request)
c.Assert(err, chk.IsNil)
c.Assert(resp, chk.NotNil)
c.Assert(resp.Response().Header.Get(xMsClientRequestID), chk.Equals, request.Header.Get(xMsClientRequestID))
}
func (s *aztestsSuite) TestEchoClientRequestIDNoMatch(c *chk.C) {
factory := NewUniqueRequestIDPolicyFactory()
// Scenario 4: Client Request ID does not match
matchRequestID := newUUID().String()
policy := factory.New(clientRequestIDPolicy{matchID: matchRequestID, scenario: clientRequestIDNoMatch}, nil)
request, _ := pipeline.NewRequest("GET", url.URL{}, nil)
request.Header.Set(xMsClientRequestID, matchRequestID)
resp, err := policy.Do(context.Background(), request)
c.Assert(err, chk.NotNil)
c.Assert(err.Error(), chk.Equals, errorMessageClientRequestIDNoMatch)
c.Assert(resp, chk.NotNil)
}
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