github.com/zhouyu0/docker-note@v0.0.0-20190722021225-b8d3825084db/client/container_stats_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 TestContainerStatsError(t *testing.T) { 14 client := &Client{ 15 client: newMockClient(errorMock(http.StatusInternalServerError, "Server error")), 16 } 17 _, err := client.ContainerStats(context.Background(), "nothing", false) 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 TestContainerStats(t *testing.T) { 24 expectedURL := "/containers/container_id/stats" 25 cases := []struct { 26 stream bool 27 expectedStream string 28 }{ 29 { 30 expectedStream: "0", 31 }, 32 { 33 stream: true, 34 expectedStream: "1", 35 }, 36 } 37 for _, c := range cases { 38 client := &Client{ 39 client: newMockClient(func(r *http.Request) (*http.Response, error) { 40 if !strings.HasPrefix(r.URL.Path, expectedURL) { 41 return nil, fmt.Errorf("Expected URL '%s', got '%s'", expectedURL, r.URL) 42 } 43 44 query := r.URL.Query() 45 stream := query.Get("stream") 46 if stream != c.expectedStream { 47 return nil, fmt.Errorf("stream not set in URL query properly. Expected '%s', got %s", c.expectedStream, stream) 48 } 49 50 return &http.Response{ 51 StatusCode: http.StatusOK, 52 Body: ioutil.NopCloser(bytes.NewReader([]byte("response"))), 53 }, nil 54 }), 55 } 56 resp, err := client.ContainerStats(context.Background(), "container_id", c.stream) 57 if err != nil { 58 t.Fatal(err) 59 } 60 defer resp.Body.Close() 61 content, err := ioutil.ReadAll(resp.Body) 62 if err != nil { 63 t.Fatal(err) 64 } 65 if string(content) != "response" { 66 t.Fatalf("expected response to contain 'response', got %s", string(content)) 67 } 68 } 69 }