Introduce base abstract class for all test suites

Author: Andrew Or

core/src/test/scala/org/apache/spark/SparkFunSuite.scala

@@ -0,0 +1,46 @@
+/*
+ * 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
+
+import org.scalatest.{FunSuite, Outcome}
+
+/**
+ * Base abstract class for all unit tests in Spark for handling common functionality.
+ */
+private[spark] abstract class SparkFunSuite extends FunSuite with Logging {
+
+  /**
+   * Log the suite name and the test name before and after each test.
+   *
+   * Subclasses should never override this method. If they wish to run
+   * custom code before and after each test, they should should mix in
+   * the {{org.scalatest.BeforeAndAfter}} trait instead.
+   */
+  final protected override def withFixture(test: NoArgTest): Outcome = {
+    val testName = test.text
+    val suiteName = this.getClass.getName
+    val shortSuiteName = suiteName.replaceAll("org.apache.spark", "o.a.s")
+    try {
+      logInfo(s"\n\n===== TEST OUTPUT FOR $shortSuiteName: '$testName' =====\n")
+      test()
+    } finally {
+      logInfo(s"\n\n***** FINISHED $shortSuiteName: '$testName' *****\n")
+    }
+  }
+
+}