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fake_http.go
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37 lines (33 loc) · 935 Bytes
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package api
import (
"fmt"
"io"
"io/ioutil"
"net/http"
)
// FakeHTTP provides a mechanism by which to stub HTTP responses through
type FakeHTTP struct {
// Requests stores references to sequental requests that RoundTrip has received
Requests []*http.Request
count int
responseStubs []*http.Response
}
// StubResponse pre-records an HTTP response
func (f *FakeHTTP) StubResponse(status int, body io.Reader) {
resp := &http.Response{
StatusCode: status,
Body: ioutil.NopCloser(body),
}
f.responseStubs = append(f.responseStubs, resp)
}
// RoundTrip satisfies http.RoundTripper
func (f *FakeHTTP) RoundTrip(req *http.Request) (*http.Response, error) {
if len(f.responseStubs) <= f.count {
return nil, fmt.Errorf("FakeHTTP: missing response stub for request %d", f.count)
}
resp := f.responseStubs[f.count]
f.count++
resp.Request = req
f.Requests = append(f.Requests, req)
return resp, nil
}