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core/src/test/scala/org/apache/spark/util/LogKeySuite.scala

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+/*
+ * 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.util
+
+import org.apache.spark.SparkFunSuite
+import org.apache.spark.internal.{Logging, LogKey}
+
+class LogKeySuite extends SparkFunSuite with Logging {
+  test("LogKey enumeration fields must be sorted alphabetically") {
+    val keys = LogKey.values.toSeq
+    assert(keys === keys.sorted, "LogKey enumeration fields must be sorted alphabetically")
+  }
+}