fix legacy test code not follow spark infer keygen clazz way issue

Author: xiaoxingstack

hudi-spark-datasource/hudi-spark/src/test/scala/org/apache/spark/sql/hudi/TestCreateTable.scala

@@ -28,7 +28,7 @@ import org.apache.spark.sql.SaveMode
 import org.apache.spark.sql.catalyst.TableIdentifier
 import org.apache.spark.sql.catalyst.catalog.CatalogTableType
 import org.apache.spark.sql.types._
-import org.junit.jupiter.api.Assertions.{assertFalse, assertTrue}
+import org.junit.jupiter.api.Assertions.assertFalse
 
 import scala.collection.JavaConverters._
 
@@ -136,7 +136,7 @@ class TestCreateTable extends HoodieSparkSqlTestBase {
     assertResult("dt")(tableConfig(HoodieTableConfig.PARTITION_FIELDS.key))
     assertResult("id")(tableConfig(HoodieTableConfig.RECORDKEY_FIELDS.key))
     assertResult("ts")(tableConfig(HoodieTableConfig.PRECOMBINE_FIELD.key))
-    assertResult(classOf[ComplexKeyGenerator].getCanonicalName)(tableConfig(HoodieTableConfig.KEY_GENERATOR_CLASS_NAME.key))
+    assertResult(classOf[SimpleKeyGenerator].getCanonicalName)(tableConfig(HoodieTableConfig.KEY_GENERATOR_CLASS_NAME.key))
     assertResult("default")(tableConfig(HoodieTableConfig.DATABASE_NAME.key()))
     assertResult(tableName)(tableConfig(HoodieTableConfig.NAME.key()))
     assertFalse(tableConfig.contains(OPERATION.key()))