[MINOR] fix check style error (#3365)

hudi-spark-datasource/hudi-spark/src/test/scala/org/apache/hudi/functional/TestCOWDataSource.scala

@@ -790,17 +790,4 @@ class TestCOWDataSource extends HoodieClientTestBase {
     val resultSchema = new StructType(recordsReadDF.schema.filter(p=> !p.name.startsWith("_hoodie")).toArray)
     assertEquals(resultSchema, schema1)
   }
-
-  @ParameterizedTest
-  @ValueSource(booleans = Array(true, false))
-  def testWithEmptyInput(allowEmptyCommit: Boolean): Unit = {
-    val inputDF1 = spark.read.json(spark.sparkContext.parallelize(Seq.empty[String], 1))
-    inputDF1.write.format("org.apache.hudi")
-      .options(commonOpts)
-      .option(DataSourceWriteOptions.OPERATION_OPT_KEY.key(), DataSourceWriteOptions.INSERT_OPERATION_OPT_VAL)
-      .option(HoodieWriteConfig.ALLOW_EMPTY_COMMIT.key(), allowEmptyCommit.toString)
-      .mode(SaveMode.Overwrite)
-      .save(basePath)
-    assertEquals(allowEmptyCommit, HoodieDataSourceHelpers.hasNewCommits(fs, basePath, "000"))
-  }
 }

hudi-spark-datasource/hudi-spark/src/test/scala/org/apache/hudi/functional/TestEmptyCommit.scala

@@ -0,0 +1,66 @@
+/*
+ * 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.hudi.functional
+
+import org.apache.hudi.{DataSourceWriteOptions, HoodieDataSourceHelpers}
+import org.apache.hudi.config.HoodieWriteConfig
+import org.apache.hudi.testutils.HoodieClientTestBase
+import org.apache.spark.sql.{SaveMode, SparkSession}
+import org.junit.jupiter.api.{AfterEach, BeforeEach}
+import org.junit.jupiter.api.Assertions.assertEquals
+import org.junit.jupiter.params.ParameterizedTest
+import org.junit.jupiter.params.provider.ValueSource
+
+class TestEmptyCommit extends HoodieClientTestBase {
+  var spark: SparkSession = _
+  val commonOpts = Map(
+    "hoodie.insert.shuffle.parallelism" -> "4",
+    "hoodie.upsert.shuffle.parallelism" -> "4",
+    DataSourceWriteOptions.RECORDKEY_FIELD_OPT_KEY.key -> "_row_key",
+    DataSourceWriteOptions.PARTITIONPATH_FIELD_OPT_KEY.key -> "partition",
+    DataSourceWriteOptions.PRECOMBINE_FIELD_OPT_KEY.key -> "timestamp",
+    HoodieWriteConfig.TABLE_NAME.key -> "hoodie_test"
+  )
+
+  @BeforeEach override def setUp() {
+    initPath()
+    initSparkContexts()
+    spark = sqlContext.sparkSession
+    initTestDataGenerator()
+    initFileSystem()
+  }
+
+  @AfterEach override def tearDown() = {
+    cleanupSparkContexts()
+    cleanupTestDataGenerator()
+    cleanupFileSystem()
+  }
+
+  @ParameterizedTest
+  @ValueSource(booleans = Array(true, false))
+  def testWithEmptyInput(allowEmptyCommit: Boolean): Unit = {
+    val inputDF1 = spark.read.json(spark.sparkContext.parallelize(Seq.empty[String], 1))
+    inputDF1.write.format("org.apache.hudi")
+      .options(commonOpts)
+      .option(DataSourceWriteOptions.OPERATION_OPT_KEY.key(), DataSourceWriteOptions.INSERT_OPERATION_OPT_VAL)
+      .option(HoodieWriteConfig.ALLOW_EMPTY_COMMIT.key(), allowEmptyCommit.toString)
+      .mode(SaveMode.Overwrite)
+      .save(basePath)
+    assertEquals(allowEmptyCommit, HoodieDataSourceHelpers.hasNewCommits(fs, basePath, "000"))
+  }
+}