package main import ( "os/exec" "strings" "testing" ) func TestRmiWithContainerFails(t *testing.T) { errSubstr := "is using it" // create a container runCmd := exec.Command(dockerBinary, "run", "-d", "busybox", "true") out, _, err := runCommandWithOutput(runCmd) if err != nil { t.Fatalf("failed to create a container: %s, %v", out, err) } cleanedContainerID := strings.TrimSpace(out) // try to delete the image runCmd = exec.Command(dockerBinary, "rmi", "busybox") out, _, err = runCommandWithOutput(runCmd) if err == nil { t.Fatalf("Container %q is using image, should not be able to rmi: %q", cleanedContainerID, out) } if !strings.Contains(out, errSubstr) { t.Fatalf("Container %q is using image, error message should contain %q: %v", cleanedContainerID, errSubstr, out) } // make sure it didn't delete the busybox name images, _ := dockerCmd(t, "images") if !strings.Contains(images, "busybox") { t.Fatalf("The name 'busybox' should not have been removed from images: %q", images) } deleteContainer(cleanedContainerID) logDone("rmi - container using image while rmi, should not remove image name") } func TestRmiTag(t *testing.T) { imagesBefore, _ := dockerCmd(t, "images", "-a") dockerCmd(t, "tag", "busybox", "utest:tag1") dockerCmd(t, "tag", "busybox", "utest/docker:tag2") dockerCmd(t, "tag", "busybox", "utest:5000/docker:tag3") { imagesAfter, _ := dockerCmd(t, "images", "-a") if strings.Count(imagesAfter, "\n") != strings.Count(imagesBefore, "\n")+3 { t.Fatalf("before: %q\n\nafter: %q\n", imagesBefore, imagesAfter) } } dockerCmd(t, "rmi", "utest/docker:tag2") { imagesAfter, _ := dockerCmd(t, "images", "-a") if strings.Count(imagesAfter, "\n") != strings.Count(imagesBefore, "\n")+2 { t.Fatalf("before: %q\n\nafter: %q\n", imagesBefore, imagesAfter) } } dockerCmd(t, "rmi", "utest:5000/docker:tag3") { imagesAfter, _ := dockerCmd(t, "images", "-a") if strings.Count(imagesAfter, "\n") != strings.Count(imagesBefore, "\n")+1 { t.Fatalf("before: %q\n\nafter: %q\n", imagesBefore, imagesAfter) } } dockerCmd(t, "rmi", "utest:tag1") { imagesAfter, _ := dockerCmd(t, "images", "-a") if strings.Count(imagesAfter, "\n") != strings.Count(imagesBefore, "\n")+0 { t.Fatalf("before: %q\n\nafter: %q\n", imagesBefore, imagesAfter) } } logDone("rmi - tag,rmi - tagging the same images multiple times then removing tags") } func TestRmiImgIDForce(t *testing.T) { runCmd := exec.Command(dockerBinary, "run", "-d", "busybox", "/bin/sh", "-c", "mkdir '/busybox-test'") out, _, err := runCommandWithOutput(runCmd) if err != nil { t.Fatalf("failed to create a container:%s, %v", out, err) } containerID := strings.TrimSpace(out) runCmd = exec.Command(dockerBinary, "commit", containerID, "busybox-test") out, _, err = runCommandWithOutput(runCmd) if err != nil { t.Fatalf("failed to commit a new busybox-test:%s, %v", out, err) } imagesBefore, _ := dockerCmd(t, "images", "-a") dockerCmd(t, "tag", "busybox-test", "utest:tag1") dockerCmd(t, "tag", "busybox-test", "utest:tag2") dockerCmd(t, "tag", "busybox-test", "utest/docker:tag3") dockerCmd(t, "tag", "busybox-test", "utest:5000/docker:tag4") { imagesAfter, _ := dockerCmd(t, "images", "-a") if strings.Count(imagesAfter, "\n") != strings.Count(imagesBefore, "\n")+4 { t.Fatalf("tag busybox to create 4 more images with same imageID; docker images shows: %q\n", imagesAfter) } } out, _ = dockerCmd(t, "inspect", "-f", "{{.Id}}", "busybox-test") imgID := strings.TrimSpace(out) dockerCmd(t, "rmi", "-f", imgID) { imagesAfter, _ := dockerCmd(t, "images", "-a") if strings.Contains(imagesAfter, imgID[:12]) { t.Fatalf("rmi -f %s failed, image still exists: %q\n\n", imgID, imagesAfter) } } logDone("rmi - imgID,rmi -f imgID delete all tagged repos of specific imgID") } func TestRmiTagWithExistingContainers(t *testing.T) { defer deleteAllContainers() container := "test-delete-tag" newtag := "busybox:newtag" bb := "busybox:latest" if out, _, err := runCommandWithOutput(exec.Command(dockerBinary, "tag", bb, newtag)); err != nil { t.Fatalf("Could not tag busybox: %v: %s", err, out) } if out, _, err := runCommandWithOutput(exec.Command(dockerBinary, "run", "--name", container, bb, "/bin/true")); err != nil { t.Fatalf("Could not run busybox: %v: %s", err, out) } out, _, err := runCommandWithOutput(exec.Command(dockerBinary, "rmi", newtag)) if err != nil { t.Fatalf("Could not remove tag %s: %v: %s", newtag, err, out) } if d := strings.Count(out, "Untagged: "); d != 1 { t.Fatalf("Expected 1 untagged entry got %d: %q", d, out) } logDone("rmi - delete tag with existing containers") } func TestRmiForceWithExistingContainers(t *testing.T) { defer deleteAllContainers() image := "busybox-clone" cmd := exec.Command(dockerBinary, "build", "--no-cache", "-t", image, "-") cmd.Stdin = strings.NewReader(`FROM busybox MAINTAINER foo`) if out, _, err := runCommandWithOutput(cmd); err != nil { t.Fatalf("Could not build %s: %s, %v", image, out, err) } if out, _, err := runCommandWithOutput(exec.Command(dockerBinary, "run", "--name", "test-force-rmi", image, "/bin/true")); err != nil { t.Fatalf("Could not run container: %s, %v", out, err) } out, _, err := runCommandWithOutput(exec.Command(dockerBinary, "rmi", "-f", image)) if err != nil { t.Fatalf("Could not remove image %s: %s, %v", image, out, err) } logDone("rmi - force delete with existing containers") } func TestRmiWithMultipleRepositories(t *testing.T) { defer deleteAllContainers() newRepo := "127.0.0.1:5000/busybox" oldRepo := "busybox" newTag := "busybox:test" cmd := exec.Command(dockerBinary, "tag", oldRepo, newRepo) out, _, err := runCommandWithOutput(cmd) if err != nil { t.Fatalf("Could not tag busybox: %v: %s", err, out) } cmd = exec.Command(dockerBinary, "run", "--name", "test", oldRepo, "touch", "/home/abcd") out, _, err = runCommandWithOutput(cmd) if err != nil { t.Fatalf("failed to run container: %v, output: %s", err, out) } cmd = exec.Command(dockerBinary, "commit", "test", newTag) out, _, err = runCommandWithOutput(cmd) if err != nil { t.Fatalf("failed to commit container: %v, output: %s", err, out) } cmd = exec.Command(dockerBinary, "rmi", newTag) out, _, err = runCommandWithOutput(cmd) if err != nil { t.Fatalf("failed to remove image: %v, output: %s", err, out) } if !strings.Contains(out, "Untagged: "+newTag) { t.Fatalf("Could not remove image %s: %s, %v", newTag, out, err) } logDone("rmi - delete a image which its dependency tagged to multiple repositories success") } func TestRmiBlank(t *testing.T) { // try to delete a blank image name runCmd := exec.Command(dockerBinary, "rmi", "") out, _, err := runCommandWithOutput(runCmd) if err == nil { t.Fatal("Should have failed to delete '' image") } if strings.Contains(out, "No such image") { t.Fatalf("Wrong error message generated: %s", out) } logDone("rmi - blank image name") }