PLT-7407: Back-end plugin mechanism (#7177)

* begin backend plugin wip

* flesh out rpcplugin. everything done except for minor supervisor stubs

* done with basic plugin infrastructure

* simplify tests

* remove unused test lines

1 files changed, 21 insertions, 0 deletions

diff --git a/plugin/plugintest/hooks.go b/plugin/plugintest/hooks.go
new file mode 100644
index 000000000..057c705c9
--- /dev/null
+++ b/plugin/plugintest/hooks.go
@@ -0,0 +1,21 @@
+package plugintest
+
+import (
+	"github.com/stretchr/testify/mock"
+
+	"github.com/mattermost/platform/plugin"
+)
+
+type Hooks struct {
+	mock.Mock
+}
+
+var _ plugin.Hooks = (*Hooks)(nil)
+
+func (m *Hooks) OnActivate(api plugin.API) error {
+	return m.Called(api).Error(0)
+}
+
+func (m *Hooks) OnDeactivate() error {
+	return m.Called().Error(0)
+}