github.com/zhouyu0/docker-note@v0.0.0-20190722021225-b8d3825084db/client/image_inspect_test.go (about)

     1  package client // import "github.com/docker/docker/client"
     2  
     3  import (
     4  	"bytes"
     5  	"context"
     6  	"encoding/json"
     7  	"fmt"
     8  	"io/ioutil"
     9  	"net/http"
    10  	"reflect"
    11  	"strings"
    12  	"testing"
    13  
    14  	"github.com/docker/docker/api/types"
    15  	"github.com/pkg/errors"
    16  )
    17  
    18  func TestImageInspectError(t *testing.T) {
    19  	client := &Client{
    20  		client: newMockClient(errorMock(http.StatusInternalServerError, "Server error")),
    21  	}
    22  
    23  	_, _, err := client.ImageInspectWithRaw(context.Background(), "nothing")
    24  	if err == nil || err.Error() != "Error response from daemon: Server error" {
    25  		t.Fatalf("expected a Server Error, got %v", err)
    26  	}
    27  }
    28  
    29  func TestImageInspectImageNotFound(t *testing.T) {
    30  	client := &Client{
    31  		client: newMockClient(errorMock(http.StatusNotFound, "Server error")),
    32  	}
    33  
    34  	_, _, err := client.ImageInspectWithRaw(context.Background(), "unknown")
    35  	if err == nil || !IsErrNotFound(err) {
    36  		t.Fatalf("expected an imageNotFound error, got %v", err)
    37  	}
    38  }
    39  
    40  func TestImageInspectWithEmptyID(t *testing.T) {
    41  	client := &Client{
    42  		client: newMockClient(func(req *http.Request) (*http.Response, error) {
    43  			return nil, errors.New("should not make request")
    44  		}),
    45  	}
    46  	_, _, err := client.ImageInspectWithRaw(context.Background(), "")
    47  	if !IsErrNotFound(err) {
    48  		t.Fatalf("Expected NotFoundError, got %v", err)
    49  	}
    50  }
    51  
    52  func TestImageInspect(t *testing.T) {
    53  	expectedURL := "/images/image_id/json"
    54  	expectedTags := []string{"tag1", "tag2"}
    55  	client := &Client{
    56  		client: newMockClient(func(req *http.Request) (*http.Response, error) {
    57  			if !strings.HasPrefix(req.URL.Path, expectedURL) {
    58  				return nil, fmt.Errorf("Expected URL '%s', got '%s'", expectedURL, req.URL)
    59  			}
    60  			content, err := json.Marshal(types.ImageInspect{
    61  				ID:       "image_id",
    62  				RepoTags: expectedTags,
    63  			})
    64  			if err != nil {
    65  				return nil, err
    66  			}
    67  			return &http.Response{
    68  				StatusCode: http.StatusOK,
    69  				Body:       ioutil.NopCloser(bytes.NewReader(content)),
    70  			}, nil
    71  		}),
    72  	}
    73  
    74  	imageInspect, _, err := client.ImageInspectWithRaw(context.Background(), "image_id")
    75  	if err != nil {
    76  		t.Fatal(err)
    77  	}
    78  	if imageInspect.ID != "image_id" {
    79  		t.Fatalf("expected `image_id`, got %s", imageInspect.ID)
    80  	}
    81  	if !reflect.DeepEqual(imageInspect.RepoTags, expectedTags) {
    82  		t.Fatalf("expected `%v`, got %v", expectedTags, imageInspect.RepoTags)
    83  	}
    84  }