/*
 * 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.logging.log4j.core.appender.db.jpa.converter;

import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertNotNull;
import static org.junit.jupiter.api.Assertions.assertNull;

import java.util.Arrays;
import org.apache.logging.log4j.ThreadContext;
import org.apache.logging.log4j.spi.MutableThreadContextStack;
import org.apache.logging.log4j.test.junit.UsingThreadContextStack;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Tag;
import org.junit.jupiter.api.Test;

@UsingThreadContextStack
@Tag("Appenders.Jpa")
class ContextStackJsonAttributeConverterTest {
    private ContextStackJsonAttributeConverter converter;

    @BeforeEach
    void setUp() {
        this.converter = new ContextStackJsonAttributeConverter();
    }

    @Test
    void testConvert01() {
        final ThreadContext.ContextStack stack = new MutableThreadContextStack(Arrays.asList("value1", "another2"));

        final String converted = this.converter.convertToDatabaseColumn(stack);

        assertNotNull(converted, "The converted value should not be null.");

        final ThreadContext.ContextStack reversed = this.converter.convertToEntityAttribute(converted);

        assertNotNull(reversed, "The reversed value should not be null.");
        assertEquals(stack.asList(), reversed.asList(), "The reversed value is not correct.");
    }

    @Test
    void testConvert02() {
        final ThreadContext.ContextStack stack = new MutableThreadContextStack(Arrays.asList("key1", "value2", "my3"));

        final String converted = this.converter.convertToDatabaseColumn(stack);

        assertNotNull(converted, "The converted value should not be null.");

        final ThreadContext.ContextStack reversed = this.converter.convertToEntityAttribute(converted);

        assertNotNull(reversed, "The reversed value should not be null.");
        assertEquals(stack.asList(), reversed.asList(), "The reversed value is not correct.");
    }

    @Test
    void testConvertNullToDatabaseColumn() {
        assertNull(this.converter.convertToDatabaseColumn(null), "The converted value should be null.");
    }

    @Test
    void testConvertNullOrBlankToEntityAttribute() {
        assertNull(this.converter.convertToEntityAttribute(null), "The converted attribute should be null (1).");
        assertNull(this.converter.convertToEntityAttribute(""), "The converted attribute should be null (2).");
    }
}
