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moby--moby/integration-cli/docker_cli_rmi_test.go

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package main
import (
"fmt"
"os/exec"
"strings"
"testing"
)
func TestImageRemoveWithContainerFails(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 TestImageTagRemove(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")
}