package client // import "github.com/docker/docker/client"

 
 import (
 	"bytes"

 	"context"

 	"encoding/json"
 	"fmt"
 	"io/ioutil"
 	"net/http"
 	"strings"
 	"testing"
 
 	"github.com/docker/docker/api/types"

 	"github.com/docker/docker/errdefs"

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

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

 	}
 	_, err := client.ContainerExecCreate(context.Background(), "container_id", types.ExecConfig{})
 	if err == nil || err.Error() != "Error response from daemon: Server error" {
 		t.Fatalf("expected a Server Error, got %v", err)
 	}

 	if !errdefs.IsSystem(err) {
 		t.Fatalf("expected a Server Error, got %T", err)
 	}

 }
 
 func TestContainerExecCreate(t *testing.T) {
 	expectedURL := "/containers/container_id/exec"
 	client := &Client{

 		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)
 			}
 			// FIXME validate the content is the given ExecConfig ?
 			if err := req.ParseForm(); err != nil {
 				return nil, err
 			}
 			execConfig := &types.ExecConfig{}
 			if err := json.NewDecoder(req.Body).Decode(execConfig); err != nil {
 				return nil, err
 			}
 			if execConfig.User != "user" {
 				return nil, fmt.Errorf("expected an execConfig with User == 'user', got %v", execConfig)
 			}

 			b, err := json.Marshal(types.IDResponse{

 				ID: "exec_id",
 			})
 			if err != nil {
 				return nil, err
 			}
 			return &http.Response{
 				StatusCode: http.StatusOK,
 				Body:       ioutil.NopCloser(bytes.NewReader(b)),
 			}, nil
 		}),
 	}
 
 	r, err := client.ContainerExecCreate(context.Background(), "container_id", types.ExecConfig{
 		User: "user",
 	})
 	if err != nil {
 		t.Fatal(err)
 	}
 	if r.ID != "exec_id" {
 		t.Fatalf("expected `exec_id`, got %s", r.ID)
 	}
 }
 
 func TestContainerExecStartError(t *testing.T) {
 	client := &Client{

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

 	}
 	err := client.ContainerExecStart(context.Background(), "nothing", types.ExecStartCheck{})
 	if err == nil || err.Error() != "Error response from daemon: Server error" {
 		t.Fatalf("expected a Server Error, got %v", err)
 	}

 	if !errdefs.IsSystem(err) {
 		t.Fatalf("expected a Server Error, got %T", err)
 	}

 }
 
 func TestContainerExecStart(t *testing.T) {
 	expectedURL := "/exec/exec_id/start"
 	client := &Client{

 		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 err := req.ParseForm(); err != nil {
 				return nil, err
 			}
 			execStartCheck := &types.ExecStartCheck{}
 			if err := json.NewDecoder(req.Body).Decode(execStartCheck); err != nil {
 				return nil, err
 			}
 			if execStartCheck.Tty || !execStartCheck.Detach {
 				return nil, fmt.Errorf("expected execStartCheck{Detach:true,Tty:false}, got %v", execStartCheck)
 			}
 
 			return &http.Response{
 				StatusCode: http.StatusOK,
 				Body:       ioutil.NopCloser(bytes.NewReader([]byte(""))),
 			}, nil
 		}),
 	}
 
 	err := client.ContainerExecStart(context.Background(), "exec_id", types.ExecStartCheck{
 		Detach: true,
 		Tty:    false,
 	})
 	if err != nil {
 		t.Fatal(err)
 	}
 }
 
 func TestContainerExecInspectError(t *testing.T) {
 	client := &Client{

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

 	}
 	_, err := client.ContainerExecInspect(context.Background(), "nothing")
 	if err == nil || err.Error() != "Error response from daemon: Server error" {
 		t.Fatalf("expected a Server Error, got %v", err)
 	}

 	if !errdefs.IsSystem(err) {
 		t.Fatalf("expected a Server Error, got %T", err)
 	}

 }
 
 func TestContainerExecInspect(t *testing.T) {
 	expectedURL := "/exec/exec_id/json"
 	client := &Client{

 		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)
 			}
 			b, err := json.Marshal(types.ContainerExecInspect{
 				ExecID:      "exec_id",
 				ContainerID: "container_id",
 			})
 			if err != nil {
 				return nil, err
 			}
 			return &http.Response{
 				StatusCode: http.StatusOK,
 				Body:       ioutil.NopCloser(bytes.NewReader(b)),
 			}, nil
 		}),
 	}
 
 	inspect, err := client.ContainerExecInspect(context.Background(), "exec_id")
 	if err != nil {
 		t.Fatal(err)
 	}
 	if inspect.ExecID != "exec_id" {
 		t.Fatalf("expected ExecID to be `exec_id`, got %s", inspect.ExecID)
 	}
 	if inspect.ContainerID != "container_id" {
 		t.Fatalf("expected ContainerID `container_id`, got %s", inspect.ContainerID)
 	}
 }