Merge pull request #16 from tiwillia/ping

Implement simple ping functionality

mandrill.go

@@ -219,6 +219,22 @@ func ClientWithKey(key string) *Client {
 	}
 }
 
+func (c *Client) Ping() (pong string, err error) {
+	var data struct {
+		Key string `json:"key"`
+	}
+
+	data.Key = c.Key
+
+	body, err := c.sendApiRequest(data, "users/ping.json")
+	if err != nil {
+		return pong, err
+	}
+
+	err = json.Unmarshal(body, &pong)
+	return pong, err
+}
+
 // MessagesSend sends a message via an API client
 func (c *Client) MessagesSend(message *Message) (responses []*Response, err error) {
 
@@ -279,28 +295,36 @@ func (c *Client) sendMessagePayload(data interface{}, path string) (responses []
 		return nil, errors.New("SANDBOX_ERROR")
 	}
 
+	body, err := c.sendApiRequest(data, path)
+	if err != nil {
+		return responses, err
+	}
+	responses = make([]*Response, 0)
+	err = json.Unmarshal(body, &responses)
+	return responses, err
+}
+
+func (c *Client) sendApiRequest(data interface{}, path string) (body []byte, err error) {
 	payload, _ := json.Marshal(data)
 
 	resp, err := c.HTTPClient.Post(c.BaseURL+path, "application/json", bytes.NewReader(payload))
 	if err != nil {
-		return responses, err
+		return body, err
 	}
 
 	defer resp.Body.Close()
-	body, err := ioutil.ReadAll(resp.Body)
+	body, err = ioutil.ReadAll(resp.Body)
 	if err != nil {
-		return responses, err
+		return body, err
 	}
 
 	if resp.StatusCode >= 400 {
 		resError := &Error{}
 		err = json.Unmarshal(body, resError)
-		return responses, resError
+		return body, resError
 	}
 
-	responses = make([]*Response, 0)
-	err = json.Unmarshal(body, &responses)
-	return responses, err
+	return body, err
 }
 
 // AddRecipient appends a recipient to the message

mandrill_test.go

@@ -117,6 +117,33 @@ func Test_MessageSend_Fail(t *testing.T) {
 	expect(t, reflect.DeepEqual(correctResponse, err), true)
 }
 
+// Ping //////////
+
+func Test_Ping_Success(t *testing.T) {
+	server, m := testTools(200, `"PONG!"`)
+	defer server.Close()
+	response, err := m.Ping()
+
+	expect(t, response, "PONG!")
+	expect(t, err, nil)
+}
+
+func Test_Ping_Fail(t *testing.T) {
+	server, m := testTools(400, `{"status":"error","code":-1,"name":"Invalid_Key","message":"Invalid API key"}`)
+	defer server.Close()
+	response, err := m.Ping()
+
+	expect(t, response, "")
+
+	correctMessagesResponse := &Error{
+		Status:  "error",
+		Code:    -1,
+		Name:    "Invalid_Key",
+		Message: "Invalid API key",
+	}
+	expect(t, reflect.DeepEqual(correctMessagesResponse, err), true)
+}
+
 // TEST Keys //////////
 
 func Test_SANDBOX_SUCCESS(t *testing.T) {