package client
 
 import (
 	"bytes"
 	"encoding/json"
 	"fmt"
 	"io/ioutil"
 	"net/http"
 	"strings"
 	"testing"
 
 	"github.com/docker/docker/api/types"
 	"github.com/docker/docker/api/types/swarm"

 	"github.com/stretchr/testify/assert"

 	"golang.org/x/net/context"
 )
 

 func TestConfigCreateUnsupported(t *testing.T) {
 	client := &Client{
 		version: "1.29",
 		client:  &http.Client{},
 	}
 	_, err := client.ConfigCreate(context.Background(), swarm.ConfigSpec{})
 	assert.EqualError(t, err, `"config create" requires API version 1.30, but the Docker daemon API version is 1.29`)
 }
 

 func TestConfigCreateError(t *testing.T) {
 	client := &Client{

 		version: "1.30",
 		client:  newMockClient(errorMock(http.StatusInternalServerError, "Server error")),

 	}
 	_, err := client.ConfigCreate(context.Background(), swarm.ConfigSpec{})
 	if err == nil || err.Error() != "Error response from daemon: Server error" {
 		t.Fatalf("expected a Server Error, got %v", err)
 	}
 }
 
 func TestConfigCreate(t *testing.T) {

 	expectedURL := "/v1.30/configs/create"

 	client := &Client{

 		version: "1.30",

 		client: newMockClient(func(req *http.Request) (*http.Response, error) {
 			if !strings.HasPrefix(req.URL.Path, expectedURL) {
 				return nil, fmt.Errorf("Expected URL '%s', got '%s'", expectedURL, req.URL)
 			}
 			if req.Method != "POST" {
 				return nil, fmt.Errorf("expected POST method, got %s", req.Method)
 			}
 			b, err := json.Marshal(types.ConfigCreateResponse{
 				ID: "test_config",
 			})
 			if err != nil {
 				return nil, err
 			}
 			return &http.Response{
 				StatusCode: http.StatusCreated,
 				Body:       ioutil.NopCloser(bytes.NewReader(b)),
 			}, nil
 		}),
 	}
 
 	r, err := client.ConfigCreate(context.Background(), swarm.ConfigSpec{})
 	if err != nil {
 		t.Fatal(err)
 	}
 	if r.ID != "test_config" {
 		t.Fatalf("expected `test_config`, got %s", r.ID)
 	}
 }