github.com/rawahars/moby@v24.0.4+incompatible/client/container_wait_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  	"log"
    10  	"net/http"
    11  	"strings"
    12  	"testing"
    13  	"time"
    14  
    15  	"github.com/docker/docker/api/types/container"
    16  	"github.com/docker/docker/errdefs"
    17  )
    18  
    19  func TestContainerWaitError(t *testing.T) {
    20  	client := &Client{
    21  		client: newMockClient(errorMock(http.StatusInternalServerError, "Server error")),
    22  	}
    23  	resultC, errC := client.ContainerWait(context.Background(), "nothing", "")
    24  	select {
    25  	case result := <-resultC:
    26  		t.Fatalf("expected to not get a wait result, got %d", result.StatusCode)
    27  	case err := <-errC:
    28  		if !errdefs.IsSystem(err) {
    29  			t.Fatalf("expected a Server Error, got %[1]T: %[1]v", err)
    30  		}
    31  	}
    32  }
    33  
    34  func TestContainerWait(t *testing.T) {
    35  	expectedURL := "/containers/container_id/wait"
    36  	client := &Client{
    37  		client: newMockClient(func(req *http.Request) (*http.Response, error) {
    38  			if !strings.HasPrefix(req.URL.Path, expectedURL) {
    39  				return nil, fmt.Errorf("Expected URL '%s', got '%s'", expectedURL, req.URL)
    40  			}
    41  			b, err := json.Marshal(container.WaitResponse{
    42  				StatusCode: 15,
    43  			})
    44  			if err != nil {
    45  				return nil, err
    46  			}
    47  			return &http.Response{
    48  				StatusCode: http.StatusOK,
    49  				Body:       io.NopCloser(bytes.NewReader(b)),
    50  			}, nil
    51  		}),
    52  	}
    53  
    54  	resultC, errC := client.ContainerWait(context.Background(), "container_id", "")
    55  	select {
    56  	case err := <-errC:
    57  		t.Fatal(err)
    58  	case result := <-resultC:
    59  		if result.StatusCode != 15 {
    60  			t.Fatalf("expected a status code equal to '15', got %d", result.StatusCode)
    61  		}
    62  	}
    63  }
    64  
    65  func TestContainerWaitProxyInterrupt(t *testing.T) {
    66  	expectedURL := "/v1.30/containers/container_id/wait"
    67  	msg := "copying response body from Docker: unexpected EOF"
    68  	client := &Client{
    69  		version: "1.30",
    70  		client: newMockClient(func(req *http.Request) (*http.Response, error) {
    71  			if !strings.HasPrefix(req.URL.Path, expectedURL) {
    72  				return nil, fmt.Errorf("Expected URL '%s', got '%s'", expectedURL, req.URL)
    73  			}
    74  			return &http.Response{
    75  				StatusCode: http.StatusOK,
    76  				Body:       io.NopCloser(strings.NewReader(msg)),
    77  			}, nil
    78  		}),
    79  	}
    80  
    81  	resultC, errC := client.ContainerWait(context.Background(), "container_id", "")
    82  	select {
    83  	case err := <-errC:
    84  		if !strings.Contains(err.Error(), msg) {
    85  			t.Fatalf("Expected: %s, Actual: %s", msg, err.Error())
    86  		}
    87  	case result := <-resultC:
    88  		t.Fatalf("Unexpected result: %v", result)
    89  	}
    90  }
    91  
    92  func TestContainerWaitProxyInterruptLong(t *testing.T) {
    93  	expectedURL := "/v1.30/containers/container_id/wait"
    94  	msg := strings.Repeat("x", containerWaitErrorMsgLimit*5)
    95  	client := &Client{
    96  		version: "1.30",
    97  		client: newMockClient(func(req *http.Request) (*http.Response, error) {
    98  			if !strings.HasPrefix(req.URL.Path, expectedURL) {
    99  				return nil, fmt.Errorf("Expected URL '%s', got '%s'", expectedURL, req.URL)
   100  			}
   101  			return &http.Response{
   102  				StatusCode: http.StatusOK,
   103  				Body:       io.NopCloser(strings.NewReader(msg)),
   104  			}, nil
   105  		}),
   106  	}
   107  
   108  	resultC, errC := client.ContainerWait(context.Background(), "container_id", "")
   109  	select {
   110  	case err := <-errC:
   111  		// LimitReader limiting isn't exact, because of how the Readers do chunking.
   112  		if len(err.Error()) > containerWaitErrorMsgLimit*2 {
   113  			t.Fatalf("Expected error to be limited around %d, actual length: %d", containerWaitErrorMsgLimit, len(err.Error()))
   114  		}
   115  	case result := <-resultC:
   116  		t.Fatalf("Unexpected result: %v", result)
   117  	}
   118  }
   119  
   120  func ExampleClient_ContainerWait_withTimeout() {
   121  	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
   122  	defer cancel()
   123  
   124  	client, _ := NewClientWithOpts(FromEnv)
   125  	_, errC := client.ContainerWait(ctx, "container_id", "")
   126  	if err := <-errC; err != nil {
   127  		log.Fatal(err)
   128  	}
   129  }