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request.go
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request.go
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package testpilot
import (
"bytes"
"context"
"encoding/json"
"errors"
"fmt"
"io"
"net/http"
"net/url"
"strings"
"time"
)
type Request struct {
method string
url string
body func() io.Reader
headers map[string]string
plan *TestPlan
expect *Expect
key string
d time.Duration
}
// Body sets the request body
func (r *Request) Body(body func() io.Reader) *Request {
r.body = body
return r
}
// Headers sets the request headers
func (r *Request) Headers(headers map[string]string) *Request {
r.headers = headers
return r
}
// Store stores the response body in the response store
func (r *Request) Store(key string) *Request {
r.key = key
return r
}
// Expect sets the expectations for the response
func (r *Request) Expect() *Expect {
r.expect = &Expect{}
return r.expect
}
func (r *Request) send(ctx context.Context) error {
var reqBody io.Reader
if r.body != nil {
reqBody = r.body()
}
req, err := http.NewRequestWithContext(ctx, r.method, r.url, reqBody)
if err != nil {
return err
}
for key, value := range r.headers {
req.Header.Set(key, value)
}
resp, err := r.plan.client.Do(req)
if err != nil {
return err
}
body, err := io.ReadAll(resp.Body)
if err != nil && !errors.Is(err, io.EOF) {
return err
}
defer resp.Body.Close()
r.plan.lastResponseBody = body
if r.key != "" {
r.plan.responseStore[r.key] = body
}
if r.expect != nil {
err := r.expectations(resp.StatusCode, body)
if err != nil {
return err
}
}
return nil
}
// JSON helper function to create a JSON request body
// panics if marshalling fails
func JSON(v any) func() io.Reader {
j, err := json.Marshal(v)
if err != nil {
panic(err)
}
return func() io.Reader { return bytes.NewReader(j) }
}
// URLValues helper function to create a URL encoded request body
func URLValues(val url.Values) func() io.Reader {
return func() io.Reader { return strings.NewReader(val.Encode()) }
}
func (r *Request) expectations(statusCode int, body []byte) error {
if r.expect.expectedResponseCode != nil && statusCode != *r.expect.expectedResponseCode {
return fmt.Errorf("expected response code %d got %d", *r.expect.expectedResponseCode, statusCode)
}
if r.expect.expectedResponseBody != nil {
fn := *r.expect.expectedResponseBody
err := fn(body)
if err != nil {
return err
}
}
return nil
}