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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.sql
import org.apache.spark.sql.test._
/* Implicits */
import TestSQLContext._
case class FunctionResult(f1: String, f2: String)
class UDFSuite extends QueryTest {
test("Simple UDF") {
registerFunction("strLenScala", (_: String).length)
assert(sql("SELECT strLenScala('test')").first().getInt(0) === 4)
}
test("TwoArgument UDF") {
registerFunction("strLenScala", (_: String).length + (_:Int))
assert(sql("SELECT strLenScala('test', 1)").first().getInt(0) === 5)
}
test("struct UDF") {
registerFunction("returnStruct", (f1: String, f2: String) => FunctionResult(f1, f2))
val result=
sql("SELECT returnStruct('test', 'test2') as ret")
.select("ret.f1".attr).first().getString(0)
assert(result == "test")
}
}
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