WIP: get Dashboard Permissions

The guardian class checks if the user is allowed to get the
permissions for a dashboard.

pkg/api/datasources_test.go

@@ -56,6 +56,10 @@ func TestDataSourcesProxy(t *testing.T) {
 }
 
 func loggedInUserScenario(desc string, url string, fn scenarioFunc) {
+	loggedInUserScenarioWithRole(desc, url, models.ROLE_EDITOR, fn)
+}
+
+func loggedInUserScenarioWithRole(desc string, url string, role models.RoleType, fn scenarioFunc) {
 	Convey(desc+" "+url, func() {
 		defer bus.ClearBusHandlers()
 
@@ -77,7 +81,7 @@ func loggedInUserScenario(desc string, url string, fn scenarioFunc) {
 			sc.context = c
 			sc.context.UserId = TestUserID
 			sc.context.OrgId = TestOrgID
-			sc.context.OrgRole = models.ROLE_EDITOR
+			sc.context.OrgRole = role
 			if sc.handlerFunc != nil {
 				return sc.handlerFunc(sc.context)
 			}