/*
 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.plc4x.java.ads.api.generic.types;

import io.netty.buffer.ByteBuf;
import io.netty.buffer.Unpooled;
import org.junit.Test;

import static org.hamcrest.Matchers.is;
import static org.junit.Assert.assertThat;

public class AmsErrorTest {

    @Test
    public void errorBytes() {
        // note bytes in reverse order
        AmsError error = AmsError.of((byte)0x01, (byte)0x20, (byte)0x00, (byte)0x00);
        assertThat(error.getAsLong(), is(0x2001L));
    }

    @Test
    public void errorLong() {
        AmsError error = AmsError.of(0xFF02L);
        assertThat(error.getAsLong(), is(0xFF02L));
    }

    @Test
    public void errorLongBig() {
        AmsError error = AmsError.of(0xFFFFFFFFL);
        assertThat(error.getAsLong(), is(0xFFFFFFFFL));
    }
    
    @Test
    public void errorString() {
        AmsError error = AmsError.of("255");
        assertThat(error.getAsLong(), is(0xFFL));
    }

    @Test
    public void errorByteBuf() {
        ByteBuf buffer = Unpooled.buffer();

        // note bytes in reverse order
        buffer.writeByte((byte)0x04);
        buffer.writeByte((byte)0x01);
        buffer.writeByte((byte)0x00);
        buffer.writeByte((byte)0x00);

        AmsError error = AmsError.of(buffer);
        assertThat(error.getAsLong(), is(260L));
    }

    @Test(expected = NumberFormatException.class)
    public void noHex() {
        AmsError error = AmsError.of("0xFF000000");
    }
    
    @Test(expected = IllegalArgumentException.class)
    public void errorLongTooBig() {
        AmsError error = AmsError.of(0x100000000L);
    }
    
    @Test(expected = IllegalArgumentException.class)
    public void errorNegative() {
        AmsError error = AmsError.of(-1);
    }
    
    @Test
    public void equals() {
        AmsError a = AmsError.of((byte) 0x1, (byte) 0x2, (byte) 0x3, (byte) 0x4);
        AmsError b = AmsError.of((byte) 0x1, (byte) 0x2, (byte) 0x3, (byte) 0x4);
        AmsError c = AmsError.of((byte) 0x1, (byte) 0x2, (byte) 0x3, (byte) 0xFF);
        byte array[] = {(byte) 0x1, (byte) 0x2, (byte) 0x3, (byte) 0x4};

        assertThat(a.equals(a), is(true));
        assertThat(a.equals(b), is(true));
        assertThat(a.equals(c), is(false));
        assertThat(a.equals(1), is(false));
        assertThat(a.equals((byte) 1), is(false));
        assertThat(a.equals(array), is(false));
    }
}