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mock_http_client.go
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/
mock_http_client.go
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// Copyright 2019 Splunk, Inc.
//
// 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 client
import (
"io/ioutil"
"net/http"
"strings"
"sync"
"time"
)
type request struct {
r *http.Request
receivedAt time.Time
}
type mockTransport struct {
sync.Mutex
delay time.Duration
statusCode int
headers map[string]string
err error
received []*request
body string
}
func (m *mockTransport) RoundTrip(r *http.Request) (*http.Response, error) {
if m.delay > 0 {
time.Sleep(m.delay)
}
m.record(r)
if m.err != nil {
return nil, m.err
}
resp := &http.Response{
StatusCode: m.statusCode,
Body: ioutil.NopCloser(strings.NewReader(m.body)),
}
resp.Header = http.Header{}
for k, v := range m.headers {
resp.Header.Add(k, v)
}
return resp, nil
}
func (m *mockTransport) reset(code int) {
m.Lock()
m.delay = time.Duration(0)
m.statusCode = code
m.received = []*request{}
m.Unlock()
}
func (m *mockTransport) record(r *http.Request) {
m.Lock()
m.received = append(m.received, &request{r, time.Now()})
m.Unlock()
}
func (m *mockTransport) requests() []*request {
m.Lock()
r := make([]*request, len(m.received))
copy(r, m.received)
defer m.Unlock()
return r
}
func newMockHTTPClient(m *mockTransport) *http.Client {
if m.statusCode == 0 {
m.statusCode = 200
}
if m.received == nil {
m.received = []*request{}
}
if m.headers == nil {
m.headers = map[string]string{}
}
return &http.Client{Transport: m}
}