| package main |
| |
| import ( |
| "fmt" |
| "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) |
| errorOut(err, t, fmt.Sprintf("failed to create a container: %v %v", out, err)) |
| |
| cleanedContainerID := stripTrailingCharacters(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, _, _ := cmd(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, _, _ := cmd(t, "images", "-a") |
| cmd(t, "tag", "busybox", "utest:tag1") |
| cmd(t, "tag", "busybox", "utest/docker:tag2") |
| cmd(t, "tag", "busybox", "utest:5000/docker:tag3") |
| { |
| imagesAfter, _, _ := cmd(t, "images", "-a") |
| if nLines(imagesAfter) != nLines(imagesBefore)+3 { |
| t.Fatalf("before: %q\n\nafter: %q\n", imagesBefore, imagesAfter) |
| } |
| } |
| cmd(t, "rmi", "utest/docker:tag2") |
| { |
| imagesAfter, _, _ := cmd(t, "images", "-a") |
| if nLines(imagesAfter) != nLines(imagesBefore)+2 { |
| t.Fatalf("before: %q\n\nafter: %q\n", imagesBefore, imagesAfter) |
| } |
| |
| } |
| cmd(t, "rmi", "utest:5000/docker:tag3") |
| { |
| imagesAfter, _, _ := cmd(t, "images", "-a") |
| if nLines(imagesAfter) != nLines(imagesBefore)+1 { |
| t.Fatalf("before: %q\n\nafter: %q\n", imagesBefore, imagesAfter) |
| } |
| |
| } |
| cmd(t, "rmi", "utest:tag1") |
| { |
| imagesAfter, _, _ := cmd(t, "images", "-a") |
| if nLines(imagesAfter) != nLines(imagesBefore)+0 { |
| t.Fatalf("before: %q\n\nafter: %q\n", imagesBefore, imagesAfter) |
| } |
| |
| } |
| logDone("tag,rmi- tagging the same images multiple times then removing tags") |
| } |
| |
| func TestRmiTagWithExistingContainers(t *testing.T) { |
| 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) |
| } |
| |
| deleteAllContainers() |
| |
| logDone("rmi - delete tag with existing containers") |
| } |