package jmri.jmrit.sound;

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

import jmri.util.JUnitUtil;

import org.junit.jupiter.api.*;

/**
 * Tests for the WavBuffer class.
 * <p>
 * Note: This makes noise!
 *
 * @author Bob Jacobsen Copyright 2006
 * @author Randall Wood (C) 2016
 */
public class WavBufferTest {

    @Test
    public void testCtor() {
        byte[] data = new byte[idata.length];
        for (int i = 0; i < idata.length; i++) {
            data[i] = (byte) idata[i];
        }

        WavBuffer t = new WavBuffer(data);
        assertNotNull(t);

    }

    @Test
    public void testSizes() {
        byte[] data = new byte[idata.length];
        for (int i = 0; i < idata.length; i++) {
            data[i] = (byte) idata[i];
        }

        WavBuffer w = new WavBuffer(data);

        assertEquals( 11025.0, w.getSampleRate(), "sample rate");
        assertEquals( 8, w.getSampleSizeInBits(), "sample size");
        assertEquals( 1, w.getChannels(), "channels");
    }

    @Test
    public void testLocations() {
        byte[] data = new byte[idata.length];
        for (int i = 0; i < idata.length; i++) {
            data[i] = (byte) idata[i];
        }

        WavBuffer w = new WavBuffer(data);

        assertEquals( 48, w.findHeader(0x64, 0x61, 0x74, 0x61), "data header offset");
        assertEquals( 56, w.getDataStart(), "data start offset");
        assertEquals( 32, w.getDataSize(), "data size");
        assertEquals( 56 + 32 - 1, w.getDataEnd(), "data end offset");

    }

    private final int[] idata = new int[]{
        0x52, 0x49, 0x46, 0x46, 0xC4, 0x00, 0x00, 0x00, 0x57, 0x41, 0x56, 0x45, 0x66, 0x6d, 0x74, 0x20,
        0x10, 0x00, 0x00, 0x00, 0x01, 0x00, 0x01, 0x00, 0x11, 0x2b, 0x00, 0x00, 0x11, 0x2b, 0x00, 0x00,
        0x01, 0x00, 0x08, 0x00, 0x66, 0x61, 0x63, 0x74, 0x04, 0x00, 0x00, 0x00, 0xc0, 0x24, 0x00, 0x00,
        0x64, 0x61, 0x74, 0x61, 0x20, 0x00, 0x00, 0x00, 0x81, 0x83, 0x81, 0x81, 0x83, 0x88, 0x84, 0x86,
        0x8a, 0x82, 0x84, 0x85, 0x84, 0x89, 0x80, 0x83, 0x8b, 0x85, 0x89, 0x88, 0x81, 0x85, 0x85, 0x81,
        0x80, 0x7f, 0x80, 0x7f, 0x82, 0x83, 0x80, 0x83, 0x4c, 0x49, 0x53, 0x54, 0x42, 0x00, 0x00, 0x00,
        0x49, 0x4e, 0x46, 0x4f, 0x49, 0x53, 0x46, 0x54, 0x0f, 0x00, 0x00, 0x00, 0x4d, 0x79, 0x53, 0x6f,
        0x75, 0x6e, 0x64, 0x53, 0x74, 0x75, 0x64, 0x69, 0x6f, 0x20, 0x00, 0x00, 0x49, 0x45, 0x4e, 0x47,
        0x0b, 0x00, 0x00, 0x00, 0x41, 0x4a, 0x20, 0x49, 0x72, 0x65, 0x6c, 0x61, 0x6e, 0x64, 0x00, 0x00,
        0x49, 0x43, 0x4f, 0x50, 0x0a, 0x00, 0x00, 0x00, 0x44, 0x69, 0x67, 0x69, 0x74, 0x72, 0x61, 0x78,
        0x20, 0x00, 0x44, 0x49, 0x53, 0x50, 0x19, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x47, 0x50,
        0x31, 0x30, 0x20, 0x70, 0x61, 0x73, 0x73, 0x69, 0x6e, 0x67, 0x20, 0x63, 0x61, 0x70, 0x74, 0x75,
        0x72, 0x65, 0x00, 0x00
    };

    @BeforeEach
    public void setUp() {
        JUnitUtil.setUp();
    }

    @AfterEach
    public void tearDown() {
        JUnitUtil.tearDown();
    }

    //private static final Logger log = LoggerFactory.getLogger(WavBufferTest.class);

}