/*
 * Copyright (c) 2008-2017, Hazelcast, Inc. All Rights Reserved.
 *
 * 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
 *
 * 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 com.hazelcast.query.impl;

import com.hazelcast.internal.serialization.InternalSerializationService;
import com.hazelcast.nio.serialization.Data;
import com.hazelcast.query.impl.getters.Extractors;
import com.hazelcast.test.HazelcastParallelClassRunner;
import com.hazelcast.test.annotation.ParallelTest;
import com.hazelcast.test.annotation.QuickTest;
import org.junit.Test;
import org.junit.experimental.categories.Category;
import org.junit.runner.RunWith;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertSame;
import static org.junit.Assert.assertTrue;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.when;

@RunWith(HazelcastParallelClassRunner.class)
@Category({QuickTest.class, ParallelTest.class})
public class CachedQueryEntryTest extends QueryEntryTest {

    @Test
    public void getKey_caching() {
        QueryableEntry entry = entry("key", "value");

        assertSame(entry.getKey(), entry.getKey());
    }

    @Test
    public void getValue_caching() {
        QueryableEntry entry = entry("key", "value");

        assertSame(entry.getValue(), entry.getValue());
    }

    @Test
    public void getKeyData_caching() {
        QueryableEntry entry = entry("key", "value");

        assertSame(entry.getKeyData(), entry.getKeyData());
    }

    @Test
    public void getValueData_caching() {
        QueryableEntry entry = entry("key", "value");

        assertSame(entry.getValueData(), entry.getValueData());
    }

    @Test(expected = IllegalArgumentException.class)
    public void testInit_whenKeyIsNull_thenThrowIllegalArgumentException() {
        Data key = null;
        entry(key, new Object(), Extractors.empty());
    }

    @Test
    public void testGetKey() {
        String keyObject = "key";
        Data keyData = serializationService.toData(keyObject);
        QueryableEntry entry = entry(keyData, new Object(), Extractors.empty());

        Object key = entry.getKey();
        assertEquals(keyObject, key);
    }

    @Test
    public void testGetTargetObject_givenKeyDataIsPortable_whenKeyFlagIsTrue_thenReturnKeyData() {
        //given
        Data keyData = mockPortableData();
        QueryableEntry entry = entry(keyData, new Object(), Extractors.empty());

        //when
        Object targetObject = entry.getTargetObject(true);

        //then
        assertSame(keyData, targetObject);
    }

    @Test
    public void testGetTargetObject_givenKeyDataIsNotPortable_whenKeyFlagIsTrue_thenReturnKeyObject() {
        //given
        Object keyObject = "key";
        Data keyData = serializationService.toData(keyObject);
        QueryableEntry entry = entry(keyData, new Object(), Extractors.empty());

        //when
        Object targetObject = entry.getTargetObject(true);

        //then
        assertEquals(keyObject, targetObject);
    }

    @Test
    public void testEquals_givenSameInstance_thenReturnTrue() {
        CachedQueryEntry entry1 = entry("key");
        CachedQueryEntry entry2 = entry1;

        assertTrue(entry1.equals(entry2));
    }

    @Test
    public void testEquals_givenOtherIsNull_thenReturnFalse() {
        CachedQueryEntry entry1 = entry("key");
        CachedQueryEntry entry2 = null;

        assertFalse(entry1.equals(entry2));
    }

    @Test
    public void testEquals_givenOtherIsDifferentClass_thenReturnFalse() {
        CachedQueryEntry entry1 = entry("key");
        Object entry2 = new Object();

        assertFalse(entry1.equals(entry2));
    }

    @Test
    public void testEquals_givenOtherHasDifferentKey_thenReturnFalse() {
        CachedQueryEntry entry1 = entry("key1");
        CachedQueryEntry entry2 = entry("key2");

        assertFalse(entry1.equals(entry2));
    }

    @Test
    public void testEquals_givenOtherHasEqualKey_thenReturnTrue() {
        CachedQueryEntry entry1 = entry("key");
        CachedQueryEntry entry2 = entry("key");

        assertTrue(entry1.equals(entry2));
    }

    @Test(expected = UnsupportedOperationException.class)
    public void givenNewEntry_whenSetValue_thenThrowUnsupportedOperationException() {
        //given
        CachedQueryEntry entry = entry("key");

        //when
        entry.setValue(new Object());
    }

    private CachedQueryEntry entry(Object key) {
        Data keyData = serializationService.toData(key);
        return new CachedQueryEntry(serializationService, keyData, new Object(), Extractors.empty());
    }

    private Data mockPortableData() {
        Data keyData = mock(Data.class);
        when(keyData.isPortable()).thenReturn(true);
        return keyData;
    }

    protected QueryableEntry entry(Data key, Object value, Extractors extractors) {
        return new CachedQueryEntry(serializationService, key, value, extractors);
    }

    protected QueryableEntry entry() {
        return new CachedQueryEntry();
    }

    protected void init(Object entry, InternalSerializationService serializationService, Data key, Object value, Extractors extractors) {
        ((CachedQueryEntry) entry).init(serializationService, key, value, extractors);
    }

}