github.com/pritambaral/docker@v1.4.2-0.20150120174542-b2fe1b3dd952/integration-cli/docker_cli_pull_test.go (about)

     1  package main
     2  
     3  import (
     4  	"fmt"
     5  	"os/exec"
     6  	"strings"
     7  	"testing"
     8  )
     9  
    10  // See issue docker/docker#8141
    11  func TestPullImageWithAliases(t *testing.T) {
    12  	defer setupRegistry(t)()
    13  
    14  	repoName := fmt.Sprintf("%v/dockercli/busybox", privateRegistryURL)
    15  	defer deleteImages(repoName)
    16  
    17  	repos := []string{}
    18  	for _, tag := range []string{"recent", "fresh"} {
    19  		repos = append(repos, fmt.Sprintf("%v:%v", repoName, tag))
    20  	}
    21  
    22  	// Tag and push the same image multiple times.
    23  	for _, repo := range repos {
    24  		if out, _, err := runCommandWithOutput(exec.Command(dockerBinary, "tag", "busybox", repo)); err != nil {
    25  			t.Fatalf("Failed to tag image %v: error %v, output %q", repos, err, out)
    26  		}
    27  		if out, err := exec.Command(dockerBinary, "push", repo).CombinedOutput(); err != nil {
    28  			t.Fatalf("Failed to push image %v: error %v, output %q", err, string(out))
    29  		}
    30  	}
    31  
    32  	// Clear local images store.
    33  	args := append([]string{"rmi"}, repos...)
    34  	if out, err := exec.Command(dockerBinary, args...).CombinedOutput(); err != nil {
    35  		t.Fatalf("Failed to clean images: error %v, output %q", err, string(out))
    36  	}
    37  
    38  	// Pull a single tag and verify it doesn't bring down all aliases.
    39  	pullCmd := exec.Command(dockerBinary, "pull", repos[0])
    40  	if out, _, err := runCommandWithOutput(pullCmd); err != nil {
    41  		t.Fatalf("Failed to pull %v: error %v, output %q", repoName, err, out)
    42  	}
    43  	defer deleteImages(repos[0])
    44  	if err := exec.Command(dockerBinary, "inspect", repos[0]).Run(); err != nil {
    45  		t.Fatalf("Image %v was not pulled down", repos[0])
    46  	}
    47  	for _, repo := range repos[1:] {
    48  		if err := exec.Command(dockerBinary, "inspect", repo).Run(); err == nil {
    49  			t.Fatalf("Image %v shouldn't have been pulled down", repo)
    50  		}
    51  	}
    52  
    53  	logDone("pull - image with aliases")
    54  }
    55  
    56  // pulling an image from the central registry should work
    57  func TestPullImageFromCentralRegistry(t *testing.T) {
    58  	pullCmd := exec.Command(dockerBinary, "pull", "hello-world")
    59  	if out, _, err := runCommandWithOutput(pullCmd); err != nil {
    60  		t.Fatalf("pulling the hello-world image from the registry has failed: %s, %v", out, err)
    61  	}
    62  	logDone("pull - pull hello-world")
    63  }
    64  
    65  // pulling a non-existing image from the central registry should return a non-zero exit code
    66  func TestPullNonExistingImage(t *testing.T) {
    67  	pullCmd := exec.Command(dockerBinary, "pull", "fooblahblah1234")
    68  	if out, _, err := runCommandWithOutput(pullCmd); err == nil {
    69  		t.Fatalf("expected non-zero exit status when pulling non-existing image: %s", out)
    70  	}
    71  	logDone("pull - pull fooblahblah1234 (non-existing image)")
    72  }
    73  
    74  // pulling an image from the central registry using official names should work
    75  // ensure all pulls result in the same image
    76  func TestPullImageOfficialNames(t *testing.T) {
    77  	names := []string{
    78  		"docker.io/hello-world",
    79  		"index.docker.io/hello-world",
    80  		"library/hello-world",
    81  		"docker.io/library/hello-world",
    82  		"index.docker.io/library/hello-world",
    83  	}
    84  	for _, name := range names {
    85  		pullCmd := exec.Command(dockerBinary, "pull", name)
    86  		out, exitCode, err := runCommandWithOutput(pullCmd)
    87  		if err != nil || exitCode != 0 {
    88  			t.Errorf("pulling the '%s' image from the registry has failed: %s", name, err)
    89  			continue
    90  		}
    91  
    92  		// ensure we don't have multiple image names.
    93  		imagesCmd := exec.Command(dockerBinary, "images")
    94  		out, _, err = runCommandWithOutput(imagesCmd)
    95  		if err != nil {
    96  			t.Errorf("listing images failed with errors: %v", err)
    97  		} else if strings.Contains(out, name) {
    98  			t.Errorf("images should not have listed '%s'", name)
    99  		}
   100  	}
   101  	logDone("pull - pull official names")
   102  }