/*
 * 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.qpid.protonj2.client.util;

import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertFalse;
import static org.junit.jupiter.api.Assertions.assertNotEquals;
import static org.junit.jupiter.api.Assertions.assertTrue;

import org.junit.jupiter.api.Test;

class StopWatchTest {

    @Test
    void testCreateDefaultStarts() throws Exception {
        StopWatch watch = new StopWatch();
        assertTrue(watch.isStarted());
        Thread.sleep(1);
        assertTrue(watch.stop() > 0);
    }

    @Test
    void testCreateStarted() throws Exception {
        StopWatch watch = new StopWatch(true);
        assertTrue(watch.isStarted());
        Thread.sleep(1);
        assertTrue(watch.stop() > 0);
    }

    @Test
    void testCreateNotStarted() throws Exception {
        StopWatch watch = new StopWatch(false);
        assertFalse(watch.isStarted());
        Thread.sleep(1);
        assertEquals(0, watch.stop());
    }

    @Test
    void testRestart() throws Exception {
        StopWatch watch = new StopWatch();
        assertTrue(watch.isStarted());
        Thread.sleep(1);
        long taken1 = watch.taken();
        Thread.sleep(2);
        long taken2 = watch.taken();
        assertNotEquals(taken1, taken2);
        long taken3 = watch.stop();
        assertEquals(taken3, watch.taken());
    }
}
