github.com/yamamoto-febc/docker@v1.9.0/integration-cli/docker_cli_import_test.go (about)

     1  package main
     2  
     3  import (
     4  	"bufio"
     5  	"io/ioutil"
     6  	"os"
     7  	"os/exec"
     8  	"regexp"
     9  	"strings"
    10  
    11  	"github.com/go-check/check"
    12  )
    13  
    14  func (s *DockerSuite) TestImportDisplay(c *check.C) {
    15  	testRequires(c, DaemonIsLinux)
    16  	out, _ := dockerCmd(c, "run", "-d", "busybox", "true")
    17  	cleanedContainerID := strings.TrimSpace(out)
    18  
    19  	out, _, err := runCommandPipelineWithOutput(
    20  		exec.Command(dockerBinary, "export", cleanedContainerID),
    21  		exec.Command(dockerBinary, "import", "-"),
    22  	)
    23  	if err != nil {
    24  		c.Errorf("import failed with errors: %v, output: %q", err, out)
    25  	}
    26  
    27  	if n := strings.Count(out, "\n"); n != 1 {
    28  		c.Fatalf("display is messed up: %d '\\n' instead of 1:\n%s", n, out)
    29  	}
    30  	image := strings.TrimSpace(out)
    31  
    32  	out, _ = dockerCmd(c, "run", "--rm", image, "true")
    33  	if out != "" {
    34  		c.Fatalf("command output should've been nothing, was %q", out)
    35  	}
    36  }
    37  
    38  func (s *DockerSuite) TestImportBadURL(c *check.C) {
    39  	testRequires(c, DaemonIsLinux)
    40  	out, _, err := dockerCmdWithError("import", "http://nourl/bad")
    41  	if err == nil {
    42  		c.Fatal("import was supposed to fail but didn't")
    43  	}
    44  	if !strings.Contains(out, "dial tcp") {
    45  		c.Fatalf("expected an error msg but didn't get one:\n%s", out)
    46  	}
    47  }
    48  
    49  func (s *DockerSuite) TestImportFile(c *check.C) {
    50  	testRequires(c, DaemonIsLinux)
    51  	dockerCmd(c, "run", "--name", "test-import", "busybox", "true")
    52  
    53  	temporaryFile, err := ioutil.TempFile("", "exportImportTest")
    54  	if err != nil {
    55  		c.Fatal("failed to create temporary file", "", err)
    56  	}
    57  	defer os.Remove(temporaryFile.Name())
    58  
    59  	runCmd := exec.Command(dockerBinary, "export", "test-import")
    60  	runCmd.Stdout = bufio.NewWriter(temporaryFile)
    61  
    62  	_, err = runCommand(runCmd)
    63  	if err != nil {
    64  		c.Fatal("failed to export a container", err)
    65  	}
    66  
    67  	out, _ := dockerCmd(c, "import", temporaryFile.Name())
    68  	if n := strings.Count(out, "\n"); n != 1 {
    69  		c.Fatalf("display is messed up: %d '\\n' instead of 1:\n%s", n, out)
    70  	}
    71  	image := strings.TrimSpace(out)
    72  
    73  	out, _ = dockerCmd(c, "run", "--rm", image, "true")
    74  	if out != "" {
    75  		c.Fatalf("command output should've been nothing, was %q", out)
    76  	}
    77  }
    78  
    79  func (s *DockerSuite) TestImportFileWithMessage(c *check.C) {
    80  	testRequires(c, DaemonIsLinux)
    81  	dockerCmd(c, "run", "--name", "test-import", "busybox", "true")
    82  
    83  	temporaryFile, err := ioutil.TempFile("", "exportImportTest")
    84  	if err != nil {
    85  		c.Fatal("failed to create temporary file", "", err)
    86  	}
    87  	defer os.Remove(temporaryFile.Name())
    88  
    89  	runCmd := exec.Command(dockerBinary, "export", "test-import")
    90  	runCmd.Stdout = bufio.NewWriter(temporaryFile)
    91  
    92  	_, err = runCommand(runCmd)
    93  	if err != nil {
    94  		c.Fatal("failed to export a container", err)
    95  	}
    96  
    97  	message := "Testing commit message"
    98  	out, _ := dockerCmd(c, "import", "-m", message, temporaryFile.Name())
    99  	if n := strings.Count(out, "\n"); n != 1 {
   100  		c.Fatalf("display is messed up: %d '\\n' instead of 1:\n%s", n, out)
   101  	}
   102  	image := strings.TrimSpace(out)
   103  
   104  	out, _ = dockerCmd(c, "history", image)
   105  	split := strings.Split(out, "\n")
   106  
   107  	if len(split) != 3 {
   108  		c.Fatalf("expected 3 lines from image history, got %d", len(split))
   109  	}
   110  	r := regexp.MustCompile("[\\s]{2,}")
   111  	split = r.Split(split[1], -1)
   112  
   113  	if message != split[3] {
   114  		c.Fatalf("expected %s in commit message, got %s", message, split[3])
   115  	}
   116  
   117  	out, _ = dockerCmd(c, "run", "--rm", image, "true")
   118  	if out != "" {
   119  		c.Fatalf("command output should've been nothing, was %q", out)
   120  	}
   121  }
   122  
   123  func (s *DockerSuite) TestImportFileNonExistentFile(c *check.C) {
   124  	_, exitCode, err := dockerCmdWithError("import", "example.com/myImage.tar")
   125  	if exitCode == 0 || err == nil {
   126  		c.Fatalf("import non-existing file must failed")
   127  	}
   128  }