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test: port gateway sharness tests to Go tests
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,116 @@ | ||
| package harness | ||
|
|
||
| import ( | ||
| "io" | ||
| "net/http" | ||
| "strings" | ||
| "text/template" | ||
| "time" | ||
| ) | ||
|
|
||
| // HTTPClient is an HTTP client with some conveniences for testing. | ||
| // URLs are constructed from a base URL. | ||
| // The response body is buffered into a string. | ||
| // Internal errors cause panics so that tests don't need to check errors. | ||
| // The paths are evaluated as Go templates for readable string interpolation. | ||
| type HTTPClient struct { | ||
| Client *http.Client | ||
| BaseURL string | ||
|
|
||
| Timeout time.Duration | ||
| TemplateData any | ||
| } | ||
|
|
||
| type HTTPResponse struct { | ||
| Body string | ||
| StatusCode int | ||
| Headers http.Header | ||
|
|
||
| // The raw response. The body will be closed on this response. | ||
| Resp *http.Response | ||
| } | ||
|
|
||
| func (c *HTTPClient) WithHeader(k, v string) func(h *http.Request) { | ||
| return func(h *http.Request) { | ||
| h.Header.Add(k, v) | ||
| } | ||
| } | ||
|
|
||
| func (c *HTTPClient) DisableRedirects() *HTTPClient { | ||
| c.Client.CheckRedirect = func(req *http.Request, via []*http.Request) error { | ||
| return http.ErrUseLastResponse | ||
| } | ||
| return c | ||
| } | ||
|
|
||
| // Do executes the request unchanged. | ||
| func (c *HTTPClient) Do(req *http.Request) *HTTPResponse { | ||
| log.Debugf("making HTTP req %s to %q with headers %+v", req.Method, req.URL.String(), req.Header) | ||
| resp, err := c.Client.Do(req) | ||
| if resp != nil && resp.Body != nil { | ||
| defer resp.Body.Close() | ||
| } | ||
| if err != nil { | ||
| panic(err) | ||
| } | ||
| bodyStr, err := io.ReadAll(resp.Body) | ||
| if err != nil { | ||
| panic(err) | ||
| } | ||
|
|
||
| return &HTTPResponse{ | ||
| Body: string(bodyStr), | ||
| StatusCode: resp.StatusCode, | ||
| Headers: resp.Header, | ||
| Resp: resp, | ||
| } | ||
| } | ||
|
|
||
| // BuildURL constructs a request URL from the given path by interpolating the string and then appending it to the base URL. | ||
| func (c *HTTPClient) BuildURL(urlPath string) string { | ||
| sb := &strings.Builder{} | ||
| err := template.Must(template.New("test").Parse(urlPath)).Execute(sb, c.TemplateData) | ||
| if err != nil { | ||
| panic(err) | ||
| } | ||
| renderedPath := sb.String() | ||
| return c.BaseURL + renderedPath | ||
| } | ||
|
|
||
| func (c *HTTPClient) Get(urlPath string, opts ...func(*http.Request)) *HTTPResponse { | ||
| req, err := http.NewRequest(http.MethodGet, c.BuildURL(urlPath), nil) | ||
| if err != nil { | ||
| panic(err) | ||
| } | ||
| for _, o := range opts { | ||
| o(req) | ||
| } | ||
| return c.Do(req) | ||
| } | ||
|
|
||
| func (c *HTTPClient) Post(urlPath string, body io.Reader, opts ...func(*http.Request)) *HTTPResponse { | ||
| req, err := http.NewRequest(http.MethodPost, c.BuildURL(urlPath), body) | ||
| if err != nil { | ||
| panic(err) | ||
| } | ||
| for _, o := range opts { | ||
| o(req) | ||
| } | ||
| return c.Do(req) | ||
| } | ||
|
|
||
| func (c *HTTPClient) PostStr(urlpath, body string, opts ...func(*http.Request)) *HTTPResponse { | ||
| r := strings.NewReader(body) | ||
| return c.Post(urlpath, r, opts...) | ||
| } | ||
|
|
||
| func (c *HTTPClient) Head(urlPath string, opts ...func(*http.Request)) *HTTPResponse { | ||
| req, err := http.NewRequest(http.MethodHead, c.BuildURL(urlPath), nil) | ||
| if err != nil { | ||
| panic(err) | ||
| } | ||
| for _, o := range opts { | ||
| o(req) | ||
| } | ||
| return c.Do(req) | ||
| } |
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