Testrig fixes (#50)

* testrig is runnable again
* little fixes, add some more test models
* address https://github.com/superseriousbusiness/gotosocial/issues/44

testrig/db.go

@@ -45,6 +45,8 @@ var testModels []interface{} = []interface{}{
 	&gtsmodel.Tag{},
 	&gtsmodel.User{},
 	&gtsmodel.Emoji{},
+	&gtsmodel.Instance{},
+	&gtsmodel.Notification{},
 	&oauth.Token{},
 	&oauth.Client{},
 }
@@ -129,9 +131,25 @@ func StandardDBSetup(db db.DB) {
 		}
 	}
 
+	for _, v := range NewTestFollows() {
+		if err := db.Put(v); err != nil {
+			panic(err)
+		}
+	}
+
+	for _, v := range NewTestNotifications() {
+		if err := db.Put(v); err != nil {
+			panic(err)
+		}
+	}
+
 	if err := db.CreateInstanceAccount(); err != nil {
 		panic(err)
 	}
+
+	if err := db.CreateInstanceInstance(); err != nil {
+		panic(err)
+	}
 }
 
 // StandardDBTeardown drops all the standard testing tables/models from the database to ensure it's clean for the next test.