Github user galv commented on a diff in the pull request:
https://github.com/apache/spark/pull/20761#discussion_r189449462
--- Diff:
resource-managers/yarn/src/test/scala/org/apache/spark/deploy/yarn/ResourceTypeHelperSuite.scala
---
@@ -0,0 +1,153 @@
+/*
+ * 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 org.apache.spark.deploy.yarn
+
+import org.apache.hadoop.yarn.api.records.Resource
+import org.apache.hadoop.yarn.util.Records
+import org.scalatest.{BeforeAndAfterAll, Matchers}
+
+import org.apache.spark.SparkFunSuite
+import
org.apache.spark.deploy.yarn.TestYarnResourceTypeHelper.ResourceInformation
+
+class ResourceTypeHelperSuite extends SparkFunSuite with Matchers with
BeforeAndAfterAll {
+
+ private val CUSTOM_RES_1 = "custom-resource-type-1"
+ private val CUSTOM_RES_2 = "custom-resource-type-2"
+
+ override def beforeAll(): Unit = {
+ super.beforeAll()
+ }
+
+ private def getExpectedUnmatchedErrorMessage(value: String) = {
+ "Value of resource type should match pattern " +
+ s"([0-9]+)([A-Za-z]*), unmatched value: $value"
+ }
+
+ test("resource type value does not match pattern") {
+ assume(ResourceTypeHelper.isYarnResourceTypesAvailable())
+ TestYarnResourceTypeHelper.initializeResourceTypes(List())
--- End diff --
You're taking advantage of the implementation detail that the value is
matched against the regex before it is checked that the yarn resource type
`CUSTOM_RES_1` is available. Therefore, to make this unit test more complete, I
would do
`TestYarnResourceTypeHelper.initializeResourceTypes(List(CUSTOM_RES_1))`. Same
for the test case "resource type just unit defined".
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