Modified the recording SDK to add a Delete function, and a test (#80)

Author: kcroxford-mb

voice/recording.go

@@ -109,6 +109,11 @@ func (rec *Recording) Transcriptions(client *messagebird.Client, callID string)
 	return newPaginator(client, path, reflect.TypeOf(Transcription{}))
 }
 
+// Delete deletes a recording.
+func Delete(client *messagebird.Client, callID, legID, recordingID string) error {
+    return client.Request(nil, http.MethodDelete, fmt.Sprintf("%s/v1/calls/%s/legs/%s/recordings/%s", apiRoot, callID, legID, recordingID), nil)
+}
+
 // DownloadFile streams the recorded WAV file.
 func (rec *Recording) DownloadFile(client *messagebird.Client) (io.ReadCloser, error) {
 	req, err := http.NewRequest(http.MethodGet, apiRoot+rec.Links["file"], nil)

voice/recording_test.go

@@ -34,6 +34,17 @@ func TestRecordingGetFile(t *testing.T) {
 	}
 }
 
+func TestDelete(t *testing.T) {
+	mbtest.WillReturn([]byte(""), http.StatusNoContent)
+	client := mbtest.Client(t) 
+	if err := Delete(client, "callid", "legid", "recid"); err != nil {
+		t.Errorf("unexpected error while deleting recording: %s", err)
+	}
+
+	mbtest.AssertEndpointCalled(t, http.MethodDelete, "/v1/calls/callid/legs/legid/recordings/recid")
+}
+
+
 func TestReadRecording(t *testing.T) {
 	mbtest.WillReturnTestdata(t, "recordingObject.json", http.StatusOK)
 	client := mbtest.Client(t)