/*
 * Yet Another UserAgent Analyzer
 * Copyright (C) 2013-2018 Niels Basjes
 *
 * Licensed 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
 *
 * https://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 nl.basjes.parse.useragent.hive;

import org.apache.hadoop.hive.ql.metadata.HiveException;
import org.apache.hadoop.hive.ql.udf.generic.GenericUDF.DeferredJavaObject;
import org.apache.hadoop.hive.ql.udf.generic.GenericUDF.DeferredObject;
import org.apache.hadoop.hive.serde2.objectinspector.ObjectInspector;
import org.apache.hadoop.hive.serde2.objectinspector.StandardStructObjectInspector;
import org.apache.hadoop.hive.serde2.objectinspector.primitive.PrimitiveObjectInspectorFactory;
import org.junit.Test;

import static org.junit.Assert.assertEquals;

public class TestParseUserAgent {

    @Test
    public void testBasic() throws HiveException {
        String userAgent = "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.36";

        ParseUserAgent parseUserAgent = new ParseUserAgent();

        StandardStructObjectInspector resultInspector = (StandardStructObjectInspector) parseUserAgent
            .initialize(new ObjectInspector[]{
                PrimitiveObjectInspectorFactory.javaStringObjectInspector
            });

        for (int i = 0; i < 100000; i++) {
            Object row = parseUserAgent.evaluate(new DeferredObject[]{new DeferredJavaObject(userAgent)});

            checkField(resultInspector, row, "DeviceName", "Linux Desktop");
            checkField(resultInspector, row, "AgentNameVersionMajor", "Chrome 58");
        }
    }

    private void checkField(StandardStructObjectInspector resultInspector, Object row, String fieldName, String expectedValue) {
        assertEquals(expectedValue, resultInspector.getStructFieldData(row, resultInspector.getStructFieldRef(fieldName)).toString());
    }

}

@@ -1194,16 +1194,59 @@
 tEquals;
+%0Aimport static org.junit.Assert.assertTrue;
 %0A%0Apublic
@@ -2376,10 +2376,223 @@
 %0A    %7D%0A%0A
+    @Test%0A    public void testExplain() %7B%0A        ParseUserAgent parseUserAgent = new ParseUserAgent();%0A        assertTrue(%22Wrong explanation%22, parseUserAgent.getDisplayString(null).contains(%22UserAgent%22));%0A    %7D%0A%0A
 %7D%0A

Improve code coverage for Hive UDF