package plugins // import "github.com/docker/docker/pkg/plugins" import ( "bytes" "encoding/json" "io" "io/ioutil" "net/http" "path/filepath" "runtime" "sync" "testing" "time" "github.com/docker/docker/pkg/plugins/transport" "github.com/docker/go-connections/tlsconfig" "github.com/gotestyourself/gotestyourself/assert" "github.com/pkg/errors" ) const ( fruitPlugin = "fruit" fruitImplements = "apple" ) // regression test for deadlock in handlers func TestPluginAddHandler(t *testing.T) { // make a plugin which is pre-activated p := &Plugin{activateWait: sync.NewCond(&sync.Mutex{})} p.Manifest = &Manifest{Implements: []string{"bananas"}} storage.plugins["qwerty"] = p testActive(t, p) Handle("bananas", func(_ string, _ *Client) {}) testActive(t, p) } func TestPluginWaitBadPlugin(t *testing.T) { p := &Plugin{activateWait: sync.NewCond(&sync.Mutex{})} p.activateErr = errors.New("some junk happened") testActive(t, p) } func testActive(t *testing.T, p *Plugin) { done := make(chan struct{}) go func() { p.waitActive() close(done) }() select { case <-time.After(100 * time.Millisecond): _, f, l, _ := runtime.Caller(1) t.Fatalf("%s:%d: deadlock in waitActive", filepath.Base(f), l) case <-done: } } func TestGet(t *testing.T) { p := &Plugin{name: fruitPlugin, activateWait: sync.NewCond(&sync.Mutex{})} p.Manifest = &Manifest{Implements: []string{fruitImplements}} storage.plugins[fruitPlugin] = p plugin, err := Get(fruitPlugin, fruitImplements) if err != nil { t.Fatal(err) } if p.Name() != plugin.Name() { t.Fatalf("No matching plugin with name %s found", plugin.Name()) } if plugin.Client() != nil { t.Fatal("expected nil Client but found one") } if !plugin.IsV1() { t.Fatal("Expected true for V1 plugin") } // check negative case where plugin fruit doesn't implement banana _, err = Get("fruit", "banana") assert.Equal(t, errors.Cause(err), ErrNotImplements) // check negative case where plugin vegetable doesn't exist _, err = Get("vegetable", "potato") assert.Equal(t, errors.Cause(err), ErrNotFound) } func TestPluginWithNoManifest(t *testing.T) { addr := setupRemotePluginServer() defer teardownRemotePluginServer() m := Manifest{[]string{fruitImplements}} var buf bytes.Buffer if err := json.NewEncoder(&buf).Encode(m); err != nil { t.Fatal(err) } mux.HandleFunc("/Plugin.Activate", func(w http.ResponseWriter, r *http.Request) { if r.Method != "POST" { t.Fatalf("Expected POST, got %s\n", r.Method) } header := w.Header() header.Set("Content-Type", transport.VersionMimetype) io.Copy(w, &buf) }) p := &Plugin{ name: fruitPlugin, activateWait: sync.NewCond(&sync.Mutex{}), Addr: addr, TLSConfig: &tlsconfig.Options{InsecureSkipVerify: true}, } storage.plugins[fruitPlugin] = p plugin, err := Get(fruitPlugin, fruitImplements) if err != nil { t.Fatal(err) } if p.Name() != plugin.Name() { t.Fatalf("No matching plugin with name %s found", plugin.Name()) } } func TestGetAll(t *testing.T) { tmpdir, unregister := Setup(t) defer unregister() p := filepath.Join(tmpdir, "example.json") spec := `{ "Name": "example", "Addr": "https://example.com/docker/plugin" }` if err := ioutil.WriteFile(p, []byte(spec), 0644); err != nil { t.Fatal(err) } r := newLocalRegistry() plugin, err := r.Plugin("example") if err != nil { t.Fatal(err) } plugin.Manifest = &Manifest{Implements: []string{"apple"}} storage.plugins["example"] = plugin fetchedPlugins, err := GetAll("apple") if err != nil { t.Fatal(err) } if fetchedPlugins[0].Name() != plugin.Name() { t.Fatalf("Expected to get plugin with name %s", plugin.Name()) } }