github.com/kaisenlinux/docker.io@v0.0.0-20230510090727-ea55db55fac7/engine/client/disk_usage_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"
     9  	"net/http"
    10  	"strings"
    11  	"testing"
    12  
    13  	"github.com/docker/docker/api/types"
    14  	"github.com/docker/docker/errdefs"
    15  )
    16  
    17  func TestDiskUsageError(t *testing.T) {
    18  	client := &Client{
    19  		client: newMockClient(errorMock(http.StatusInternalServerError, "Server error")),
    20  	}
    21  	_, err := client.DiskUsage(context.Background())
    22  	if !errdefs.IsSystem(err) {
    23  		t.Fatalf("expected a Server Error, got %[1]T: %[1]v", err)
    24  	}
    25  }
    26  
    27  func TestDiskUsage(t *testing.T) {
    28  	expectedURL := "/system/df"
    29  	client := &Client{
    30  		client: newMockClient(func(req *http.Request) (*http.Response, error) {
    31  			if !strings.HasPrefix(req.URL.Path, expectedURL) {
    32  				return nil, fmt.Errorf("Expected URL '%s', got '%s'", expectedURL, req.URL)
    33  			}
    34  
    35  			du := types.DiskUsage{
    36  				LayersSize: int64(100),
    37  				Images:     nil,
    38  				Containers: nil,
    39  				Volumes:    nil,
    40  			}
    41  
    42  			b, err := json.Marshal(du)
    43  			if err != nil {
    44  				return nil, err
    45  			}
    46  
    47  			return &http.Response{
    48  				StatusCode: http.StatusOK,
    49  				Body:       io.NopCloser(bytes.NewReader(b)),
    50  			}, nil
    51  		}),
    52  	}
    53  	if _, err := client.DiskUsage(context.Background()); err != nil {
    54  		t.Fatal(err)
    55  	}
    56  }