[YUNIKORN-767] add missing license header (#286)
Fixes: #286
diff --git a/pkg/scheduler/mock_plugin_test.go b/pkg/scheduler/mock_plugin_test.go
index 26f9a1e..4faa24e 100644
--- a/pkg/scheduler/mock_plugin_test.go
+++ b/pkg/scheduler/mock_plugin_test.go
@@ -1,3 +1,21 @@
+/*
+ Licensed to the Apache Software Foundation (ASF) under one
+ or more contributor license agreements. See the NOTICE file
+ distributed with this work for additional information
+ regarding copyright ownership. The ASF licenses this file
+ to you under the Apache License, Version 2.0 (the
+ "License"); you may not use this file except in compliance
+ with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+*/
+
package scheduler
import (
