github.com/hellofresh/janus@v0.0.0-20230925145208-ce8de8183c67/pkg/test/http.go (about)

     1  package test
     2  
     3  import (
     4  	"bytes"
     5  	"net/http"
     6  	"net/http/httptest"
     7  
     8  	"github.com/hellofresh/janus/pkg/router"
     9  )
    10  
    11  // Server represents a testing HTTP Server
    12  type Server struct {
    13  	*httptest.Server
    14  }
    15  
    16  // NewServer creates a new instance of Server
    17  func NewServer(r router.Router) *Server {
    18  	return &Server{httptest.NewServer(r)}
    19  }
    20  
    21  // Do creates a HTTP request to be tested
    22  func (s *Server) Do(method string, url string, headers map[string]string) (*http.Response, error) {
    23  	var u bytes.Buffer
    24  	u.WriteString(string(s.URL))
    25  	u.WriteString(url)
    26  
    27  	req, err := http.NewRequest(method, u.String(), nil)
    28  	if err != nil {
    29  		return nil, err
    30  	}
    31  
    32  	for headerName, headerValue := range headers {
    33  		if headerName == "Host" {
    34  			req.Host = headerValue
    35  		} else {
    36  			req.Header.Set(headerName, headerValue)
    37  		}
    38  	}
    39  
    40  	return http.DefaultClient.Do(req)
    41  }
    42  
    43  // Record creates a ResponseRecorder for testing
    44  func Record(method string, url string, headers map[string]string, handleFunc http.Handler) (*httptest.ResponseRecorder, error) {
    45  	req, err := http.NewRequest(method, url, nil)
    46  	if err != nil {
    47  		return nil, err
    48  	}
    49  
    50  	for headerName, headerValue := range headers {
    51  		if headerName == "Host" {
    52  			req.Host = headerValue
    53  		} else {
    54  			req.Header.Set(headerName, headerValue)
    55  		}
    56  	}
    57  
    58  	w := httptest.NewRecorder()
    59  	handleFunc.ServeHTTP(w, req)
    60  
    61  	return w, nil
    62  }