add TestContainerOrphaning integration test

integration/commands_test.go

@@ -968,3 +968,66 @@ func TestRunCidFile(t *testing.T) {
 	})
 
 }
+
+func TestContainerOrphaning(t *testing.T) {
+
+	// setup a temporary directory
+	tmpDir, err := ioutil.TempDir("", "project")
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer os.RemoveAll(tmpDir)
+
+	// setup a CLI and server
+	cli := docker.NewDockerCli(nil, os.Stdout, ioutil.Discard, testDaemonProto, testDaemonAddr)
+	defer cleanup(globalEngine, t)
+	srv := mkServerFromEngine(globalEngine, t)
+
+	// closure to build something
+	buildSomething := func(template string, image string) string {
+		dockerfile := path.Join(tmpDir, "Dockerfile")
+		replacer := strings.NewReplacer("{IMAGE}", unitTestImageID)
+		contents := replacer.Replace(template)
+		ioutil.WriteFile(dockerfile, []byte(contents), 0x777)
+		if err := cli.CmdBuild("-t", image, tmpDir); err != nil {
+			t.Fatal(err)
+		}
+		img, err := srv.ImageInspect(image)
+		if err != nil {
+			t.Fatal(err)
+		}
+		return img.ID
+	}
+
+	// build an image
+	imageName := "orphan-test"
+	template1 := `
+	from {IMAGE}
+	cmd ["/bin/echo", "holla"]
+	`
+	img1 := buildSomething(template1, imageName)
+
+	// create a container using the fist image
+	if err := cli.CmdRun(imageName); err != nil {
+		t.Fatal(err)
+	}
+
+	// build a new image that splits lineage
+	template2 := `
+	from {IMAGE}
+	cmd ["/bin/echo", "holla"]
+	expose 22
+	`
+	buildSomething(template2, imageName)
+
+	// remove the second image by name
+	resp, err := srv.ImageDelete(imageName, true)
+
+	// see if we deleted the first image (and orphaned the container)
+	for _, i := range resp {
+		if img1 == i.Deleted {
+			t.Fatal("Orphaned image with container")
+		}
+	}
+
+}