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client/http: introduce caller ID into the HTTP client (#7490)
ref #7300 Introduce caller ID into the HTTP client. Signed-off-by: JmPotato <ghzpotato@gmail.com>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,73 @@ | ||
| // Copyright 2023 TiKV Project Authors. | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
|
|
||
| package http | ||
|
|
||
| import ( | ||
| "context" | ||
| "net/http" | ||
| "testing" | ||
|
|
||
| "github.com/stretchr/testify/require" | ||
| ) | ||
|
|
||
| // requestChecker is used to check the HTTP request sent by the client. | ||
| type requestChecker struct { | ||
| checker func(req *http.Request) error | ||
| } | ||
|
|
||
| // RoundTrip implements the `http.RoundTripper` interface. | ||
| func (rc *requestChecker) RoundTrip(req *http.Request) (resp *http.Response, err error) { | ||
| return &http.Response{StatusCode: http.StatusOK}, rc.checker(req) | ||
| } | ||
|
|
||
| func newHTTPClientWithRequestChecker(checker func(req *http.Request) error) *http.Client { | ||
| return &http.Client{ | ||
| Transport: &requestChecker{checker: checker}, | ||
| } | ||
| } | ||
|
|
||
| func TestPDAllowFollowerHandleHeader(t *testing.T) { | ||
| re := require.New(t) | ||
| var expectedVal string | ||
| httpClient := newHTTPClientWithRequestChecker(func(req *http.Request) error { | ||
| val := req.Header.Get(pdAllowFollowerHandleKey) | ||
| if val != expectedVal { | ||
| re.Failf("PD allow follower handler header check failed", | ||
| "should be %s, but got %s", expectedVal, val) | ||
| } | ||
| return nil | ||
| }) | ||
| c := NewClient([]string{"http://127.0.0.1"}, WithHTTPClient(httpClient)) | ||
| c.GetRegions(context.Background()) | ||
| expectedVal = "true" | ||
| c.GetHistoryHotRegions(context.Background(), &HistoryHotRegionsRequest{}) | ||
| } | ||
|
|
||
| func TestCallerID(t *testing.T) { | ||
| re := require.New(t) | ||
| expectedVal := defaultCallerID | ||
| httpClient := newHTTPClientWithRequestChecker(func(req *http.Request) error { | ||
| val := req.Header.Get(componentSignatureKey) | ||
| if val != expectedVal { | ||
| re.Failf("Caller ID header check failed", | ||
| "should be %s, but got %s", expectedVal, val) | ||
| } | ||
| return nil | ||
| }) | ||
| c := NewClient([]string{"http://127.0.0.1"}, WithHTTPClient(httpClient)) | ||
| c.GetRegions(context.Background()) | ||
| expectedVal = "test" | ||
| c.WithCallerID(expectedVal).GetRegions(context.Background()) | ||
| } |