github.com/zhouyu0/docker-note@v0.0.0-20190722021225-b8d3825084db/client/container_export_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 TestContainerExportError(t *testing.T) {
    14  	client := &Client{
    15  		client: newMockClient(errorMock(http.StatusInternalServerError, "Server error")),
    16  	}
    17  	_, err := client.ContainerExport(context.Background(), "nothing")
    18  	if err == nil || err.Error() != "Error response from daemon: Server error" {
    19  		t.Fatalf("expected a Server Error, got %v", err)
    20  	}
    21  }
    22  
    23  func TestContainerExport(t *testing.T) {
    24  	expectedURL := "/containers/container_id/export"
    25  	client := &Client{
    26  		client: newMockClient(func(r *http.Request) (*http.Response, error) {
    27  			if !strings.HasPrefix(r.URL.Path, expectedURL) {
    28  				return nil, fmt.Errorf("Expected URL '%s', got '%s'", expectedURL, r.URL)
    29  			}
    30  
    31  			return &http.Response{
    32  				StatusCode: http.StatusOK,
    33  				Body:       ioutil.NopCloser(bytes.NewReader([]byte("response"))),
    34  			}, nil
    35  		}),
    36  	}
    37  	body, err := client.ContainerExport(context.Background(), "container_id")
    38  	if err != nil {
    39  		t.Fatal(err)
    40  	}
    41  	defer body.Close()
    42  	content, err := ioutil.ReadAll(body)
    43  	if err != nil {
    44  		t.Fatal(err)
    45  	}
    46  	if string(content) != "response" {
    47  		t.Fatalf("expected response to contain 'response', got %s", string(content))
    48  	}
    49  }