daemon/daemon_test.go

package daemon

import (
	"github.com/docker/docker/pkg/graphdb"
	"github.com/docker/docker/pkg/truncindex"
	"os"
	"path"
	"testing"
)

//
// https://github.com/docker/docker/issues/8069
//

func TestGet(t *testing.T) {
	c1 := &Container{
		ID:   "5a4ff6a163ad4533d22d69a2b8960bf7fafdcba06e72d2febdba229008b0bf57",
		Name: "tender_bardeen",
	}
	c2 := &Container{
		ID:   "3cdbd1aa394fd68559fd1441d6eff2ab7c1e6363582c82febfaa8045df3bd8de",
		Name: "drunk_hawking",
	}
	c3 := &Container{
		ID:   "3cdbd1aa394fd68559fd1441d6eff2abfafdcba06e72d2febdba229008b0bf57",
		Name: "3cdbd1aa",
	}
	c4 := &Container{
		ID:   "75fb0b800922abdbef2d27e60abcdfaf7fb0698b2a96d22d3354da361a6ff4a5",
		Name: "5a4ff6a163ad4533d22d69a2b8960bf7fafdcba06e72d2febdba229008b0bf57",
	}
	c5 := &Container{
		ID:   "d22d69a2b8960bf7fafdcba06e72d2febdba960bf7fafdcba06e72d2f9008b060b",
		Name: "d22d69a2b896",
	}

	store := &contStore{
		s: map[string]*Container{
			c1.ID: c1,
			c2.ID: c2,
			c3.ID: c3,
			c4.ID: c4,
			c5.ID: c5,
		},
	}

	index := truncindex.NewTruncIndex([]string{})
	index.Add(c1.ID)
	index.Add(c2.ID)
	index.Add(c3.ID)
	index.Add(c4.ID)
	index.Add(c5.ID)

	daemonTestDbPath := path.Join(os.TempDir(), "daemon_test.db")
	graph, err := graphdb.NewSqliteConn(daemonTestDbPath)
	if err != nil {
		t.Fatalf("Failed to create daemon test sqlite database at %s", daemonTestDbPath)
	}
	graph.Set(c1.Name, c1.ID)
	graph.Set(c2.Name, c2.ID)
	graph.Set(c3.Name, c3.ID)
	graph.Set(c4.Name, c4.ID)
	graph.Set(c5.Name, c5.ID)

	daemon := &Daemon{
		containers:     store,
		idIndex:        index,
		containerGraph: graph,
	}

	if container, _ := daemon.Get("3cdbd1aa394fd68559fd1441d6eff2ab7c1e6363582c82febfaa8045df3bd8de"); container != c2 {
		t.Fatal("Should explicitly match full container IDs")
	}

	if container, _ := daemon.Get("75fb0b8009"); container != c4 {
		t.Fatal("Should match a partial ID")
	}

	if container, _ := daemon.Get("drunk_hawking"); container != c2 {
		t.Fatal("Should match a full name")
	}

	// c3.Name is a partial match for both c3.ID and c2.ID
	if c, _ := daemon.Get("3cdbd1aa"); c != c3 {
		t.Fatal("Should match a full name even though it collides with another container's ID")
	}

	if container, _ := daemon.Get("d22d69a2b896"); container != c5 {
		t.Fatal("Should match a container where the provided prefix is an exact match to the it's name, and is also a prefix for it's ID")
	}

	if _, err := daemon.Get("3cdbd1"); err == nil {
		t.Fatal("Should return an error when provided a prefix that partially matches multiple container ID's")
	}

	if _, err := daemon.Get("nothing"); err == nil {
		t.Fatal("Should return an error when provided a prefix that is neither a name or a partial match to an ID")
	}

	os.Remove(daemonTestDbPath)
}