/*
 * 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.hertzbeat.common.util;

import org.apache.hertzbeat.common.constants.HertzBeatKeywordsEnum;
import org.junit.jupiter.api.Test;

import static org.junit.jupiter.api.Assertions.assertDoesNotThrow;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertThrows;

/**
 * Test case for {@link HertzBeatKeywordsUtil}
 */
class HertzBeatKeywordsUtilTest {

    @Test
    void testVerifyKeywords_WithReservedKeyword_Instance() {
        IllegalArgumentException exception = assertThrows(
                IllegalArgumentException.class,
                () -> HertzBeatKeywordsUtil.verifyKeywords("instance")
        );
        String expectedMessage = String.format(
                "Field matches keyword `%s`, please set alias `%s`.",
                HertzBeatKeywordsEnum.INSTANCE.getKeyword(),
                HertzBeatKeywordsEnum.INSTANCE.getAlias()
        );
        assertEquals(expectedMessage, exception.getMessage());
    }

    @Test
    void testVerifyKeywords_WithValidField() {
        assertDoesNotThrow(() -> HertzBeatKeywordsUtil.verifyKeywords("cpu_usage"));
        assertDoesNotThrow(() -> HertzBeatKeywordsUtil.verifyKeywords("memory_used"));
        assertDoesNotThrow(() -> HertzBeatKeywordsUtil.verifyKeywords("response_time"));
        assertDoesNotThrow(() -> HertzBeatKeywordsUtil.verifyKeywords("metric_instance"));
        assertDoesNotThrow(() -> HertzBeatKeywordsUtil.verifyKeywords(HertzBeatKeywordsEnum.INSTANCE.getAlias()));
    }
}
