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

     1  package client // import "github.com/docker/docker/client"
     2  
     3  import (
     4  	"bytes"
     5  	"context"
     6  	"fmt"
     7  	"io/ioutil"
     8  	"net/http"
     9  	"strings"
    10  	"testing"
    11  )
    12  
    13  func TestImageLoadError(t *testing.T) {
    14  	client := &Client{
    15  		client: newMockClient(errorMock(http.StatusInternalServerError, "Server error")),
    16  	}
    17  
    18  	_, err := client.ImageLoad(context.Background(), nil, true)
    19  	if err == nil || err.Error() != "Error response from daemon: Server error" {
    20  		t.Fatalf("expected a Server Error, got %v", err)
    21  	}
    22  }
    23  
    24  func TestImageLoad(t *testing.T) {
    25  	expectedURL := "/images/load"
    26  	expectedInput := "inputBody"
    27  	expectedOutput := "outputBody"
    28  	loadCases := []struct {
    29  		quiet                bool
    30  		responseContentType  string
    31  		expectedResponseJSON bool
    32  		expectedQueryParams  map[string]string
    33  	}{
    34  		{
    35  			quiet:                false,
    36  			responseContentType:  "text/plain",
    37  			expectedResponseJSON: false,
    38  			expectedQueryParams: map[string]string{
    39  				"quiet": "0",
    40  			},
    41  		},
    42  		{
    43  			quiet:                true,
    44  			responseContentType:  "application/json",
    45  			expectedResponseJSON: true,
    46  			expectedQueryParams: map[string]string{
    47  				"quiet": "1",
    48  			},
    49  		},
    50  	}
    51  	for _, loadCase := range loadCases {
    52  		client := &Client{
    53  			client: newMockClient(func(req *http.Request) (*http.Response, error) {
    54  				if !strings.HasPrefix(req.URL.Path, expectedURL) {
    55  					return nil, fmt.Errorf("Expected URL '%s', got '%s'", expectedURL, req.URL)
    56  				}
    57  				contentType := req.Header.Get("Content-Type")
    58  				if contentType != "application/x-tar" {
    59  					return nil, fmt.Errorf("content-type not set in URL headers properly. Expected 'application/x-tar', got %s", contentType)
    60  				}
    61  				query := req.URL.Query()
    62  				for key, expected := range loadCase.expectedQueryParams {
    63  					actual := query.Get(key)
    64  					if actual != expected {
    65  						return nil, fmt.Errorf("%s not set in URL query properly. Expected '%s', got %s", key, expected, actual)
    66  					}
    67  				}
    68  				headers := http.Header{}
    69  				headers.Add("Content-Type", loadCase.responseContentType)
    70  				return &http.Response{
    71  					StatusCode: http.StatusOK,
    72  					Body:       ioutil.NopCloser(bytes.NewReader([]byte(expectedOutput))),
    73  					Header:     headers,
    74  				}, nil
    75  			}),
    76  		}
    77  
    78  		input := bytes.NewReader([]byte(expectedInput))
    79  		imageLoadResponse, err := client.ImageLoad(context.Background(), input, loadCase.quiet)
    80  		if err != nil {
    81  			t.Fatal(err)
    82  		}
    83  		if imageLoadResponse.JSON != loadCase.expectedResponseJSON {
    84  			t.Fatalf("expected a JSON response, was not.")
    85  		}
    86  		body, err := ioutil.ReadAll(imageLoadResponse.Body)
    87  		if err != nil {
    88  			t.Fatal(err)
    89  		}
    90  		if string(body) != expectedOutput {
    91  			t.Fatalf("expected %s, got %s", expectedOutput, string(body))
    92  		}
    93  	}
    94  }