Dierks is a library for stubbing HTTP responses in Golang tests using chained methods. Perfect for testing API wrappers!
go get -u github.com/keighl/dierks
Dierks stubs HTTP responses for requests made through an http.Client. Here's a simple example showing how to stub the response body for a request to google.com.
// example_test.go
package dierks
import (
"io/ioutil"
"strings"
"testing"
)
func TestGoogle(t *testing.T) {
responsePayload := `{"user": {"id": 3, "name": "Kyle"}}`
// Dierks generates a test server, and an http.Client.
// Any request through the client will generate a response with
// `responsePayload` in the body
server, client := dierks.Res().Body(responsePayload).Start()
defer server.Close()
// Make a request through the client
resp, _ := client.Get("http://google.com")
// Let's look at what the response has...
body, _ := ioutil.ReadAll(resp.Body)
defer resp.Body.Close()
// What?! Google returned my JSON! Cool!
expect(t, string(body), responsePayload)
}More realistically, you might use dierks to test a API wrapper-lib method.
func TestGetUser(t *testing.T) {
responsePayload := `{"user": {"id": 3, "name": "Kyle"}}`
server, client := dierks.Res().Body(responsePayload).Start()
defer server.Close()
apiClient := &APIClient{CustomHTTPClient: client}
user, err := apiClient.GetUser(3)
expect(t, err, nil)
expect(t, user.ID, 3)
expect(t, user.Name, "Kyle")
}