Update testing plugins

internal/plugin/testing_plugin.go

@@ -2,13 +2,42 @@ package plugin
 
 import (
 	"github.com/hashicorp/go-hclog"
+	"github.com/hashicorp/go-plugin"
+	"github.com/hashicorp/vagrant-plugin-sdk/component"
+	"github.com/hashicorp/vagrant-plugin-sdk/internal-shared/cleanup"
 	"github.com/mitchellh/go-testing-interface"
 )
 
-func TestMinimalPlugin(t testing.T) *Plugin {
+type TestPluginWithFakeBroker struct {
+	client interface{}
+}
+
+func (p *TestPluginWithFakeBroker) GRPCBroker() *plugin.GRPCBroker {
+	return &plugin.GRPCBroker{}
+}
+
+type MockClientProtocol struct {
+	plg interface{}
+}
+
+func (m *MockClientProtocol) Dispense(s string) (interface{}, error) {
+	return m.plg, nil
+}
+
+func (m *MockClientProtocol) Ping() error {
+	return nil
+}
+
+func (m *MockClientProtocol) Close() error {
+	return nil
+}
+
+func TestMinimalPlugin(t testing.T, client interface{}) *Plugin {
 	plugin := &Plugin{
 		Location: "test",
+		Client:   client.(plugin.ClientProtocol),
 		logger:   hclog.New(&hclog.LoggerOptions{}),
+		cleaner:  cleanup.New(),
 	}
 	return plugin
 }
@@ -16,8 +45,11 @@ func TestMinimalPlugin(t testing.T) *Plugin {
 // TestPlugin returns a fully in-memory and side-effect free Plugin that
 // can be used for testing. Additional options can be given to provide your own
 // factories, configuration, etc.
-func TestPlugin(t testing.T, opts ...PluginProperty) (plugin *Plugin) {
-	plugin = TestMinimalPlugin(t)
+func TestPlugin(t testing.T, plg interface{}, opts ...PluginProperty) (plugin *Plugin) {
+	mockClient := &MockClientProtocol{
+		plg: &TestPluginWithFakeBroker{client: plg},
+	}
+	plugin = TestMinimalPlugin(t, mockClient)
 	for _, opt := range opts {
 		if err := opt(plugin); err != nil {
 			t.Error(err)
@@ -34,3 +66,10 @@ func WithPluginName(name string) PluginProperty {
 		return
 	}
 }
+
+func WithPluginTypes(types ...component.Type) PluginProperty {
+	return func(p *Plugin) (err error) {
+		p.Types = types
+		return
+	}
+}